Cisco Systems A9014CFD User Manual 2

Cisco ASR 901 Series Aggregation
Services Router Software Configuration
Guide

November 21, 2013

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Cisco Systems, Inc.
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800 553-NETS (6387)

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Text Part Number: OL-23826-09

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You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its
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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

Copyright © 2011-2013, Cisco Systems, Inc.

All rights reserved. Printed in USA

CONTENTS

Document Revision History xxxvii

Objectives xlvii

Audience xlvii

Organization xlvii

Conventions l

Related Documentation li

Obtaining Documentation, Obtaining Support, and Security Guidelines li

CHAPTER

CHAPTER

1 Cisco ASR 901 Router Overview 1-1

Introduction 1-2

Features 1-2

Performance Features 1-2
Management Options 1-3
Manageability Features 1-3
Security Features 1-4
Quality of Service and Class of Service Features 1-4
Layer 3 Features 1-5
Layer 3 VPN Services 1-5
Monitoring Features 1-5

2 Licensing 2-1

Finding Feature Information 2-1

Contents 2-1

Feature Overview 2-2

Licenses Supported on Cisco ASR 901 Router 2-2

License Types 2-4

Image Level License 2-4

Features Supported 2-4

Feature Based License 2-4

Port Based/Mode License 2-5
1588BC License 2-5

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Port or Interface Behavior 2-5

Port Based License 2-6

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Example: When Port Based License is not Installed 2-6
Example: When Port Based License is Installed 2-6

10gigUpgrade License 2-7

Example: When 10gigUpgrade License is not Installed 2-7
Example: When 10gigUpgrade License is Installed 2-8

Flexi License 2-8

Example: When Flexi License is not Installed 2-8
Example: When Flexi License is Installed 2-9

1588BC License 2-9

Example: When 1588BC License is not Installed 2-9
Example: When 1588BC License is Installed 2-9
Removing the 1588BC License 2-10

Generating the License 2-11

Installing the License 2-11

Changing the License 2-12

CHAPTER

Return Materials Authorization License Process 2-13

Example: RMA Process 2-13

Verifying the License 2-14

Where to Go Next 2-14

Additional References 2-15

Related Documents 2-15
Standards 2-15
MIBs 2-15
RFCs 2-15
Technical Assistance 2-16

Feature Information for Licensing 2-17

3 First-Time Configuration 3-1

Contents 3-1

Setup Mode 3-1

Before Starting Your Router 3-1
Using Setup Mode 3-2

Configuring Global Parameters 3-2
Completing the Configuration 3-4

iv

Verifying the Cisco IOS Software Version 3-5

Configuring the Hostname and Password 3-5

Verifying the Hostname and Password 3-6

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Contents

CHAPTER

4 Managing and Monitoring Network Management Features 4-1

Finding Feature Information 4-1

Contents 4-1

Network Management Features for the ASR 901 4-2

Cisco Active Network Abstraction (ANA) 4-2
SNMP MIB Support 4-2
Cisco Networking Services (CNS) 4-2

How to Configure Network Management Features on ASR 901 4-2

Configuring SNMP Support 4-3
Configuring Remote Network Management 4-8
Enabling Cisco Networking Services (CNS) and Zero-Touch Deployment 4-10

Zero-Touch Deployment 4-10
Image Download 4-11
Configuring a DHCP Server 4-12

Configuring a TFTP Server 4-13

Creating a Bootstrap Configuration 4-13
Enabling a TFTP Server on the Edge Router 4-14

Configuring the Cisco Configuration Engine 4-14

CHAPTER

Configuration Examples 4-15

Example: Configuring SNMP Support 4-15
Example: Configuring Remote Network Management 4-15
Example: Configuring a DHCP Server 4-15
Example: Zero-touch Deployment 4-16

Where to Go Next 4-16

Additional References 4-16

Related Documents 4-16
Standards 4-16
MIBs 4-17
RFCs 4-17
Technical Assistance 4-17

Feature Information for Monitoring and Managing the ASR 901 Router 4-18

5 Using the Command-Line Interface 5-1

Contents 5-1

Understanding Command Modes 5-1

Understanding the Help System 5-3

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Understanding Abbreviated Commands 5-4

Understanding no and default Forms of Commands 5-4

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Understanding CLI Error Messages 5-4

Using Command History 5-5

Changing the Command History Buffer Size 5-5
Recalling Commands 5-6
Disabling the Command History Feature 5-6

Using Editing Features 5-6

Enabling and Disabling Editing Features 5-6
Editing Commands through Keystrokes 5-7
Editing Command Lines that Wrap 5-8

Searching and Filtering Output of show and more Commands 5-9

Accessing the CLI 5-9

Accessing the CLI through a Console Connection or through Telnet 5-9

Saving Configuration Changes 5-10

CHAPTER

CHAPTER

6 Software Upgrade 6-1

Contents 6-1

Selecting a Cisco IOS Image 6-1

Upgrading the Cisco IOS image 6-1

Auto Upgrading the MCU 6-4

Manually Upgrading the ROMMON 6-5

Auto Upgrade of ROMMON 6-6

7 Configuring Gigabit Ethernet Interfaces 7-1

Contents 7-1

Configuring the Interface 7-1

Setting the Speed and Duplex Mode 7-2

Enabling the Interface 7-3

Modifying MTU Size on the Interface 7-3

Verifying the MTU Size 7-4

MAC Flap Control 7-5

Configuring MAC FLap Control 7-5

CHAPTER

vi

Configuring a Combo Port 7-6

Restrictions 7-6

Verifying the Media Type 7-8

8 Configuring Ethernet Virtual Connections 8-1

Finding Feature Information 8-1

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Contents 8-1

Supported EVC Features 8-2

Understanding EVC Features 8-3

Ethernet Virtual Connections 8-3
Service Instances and EFPs 8-3
Encapsulation 8-4
Bridge Domains 8-5
DHCP Client on Switch Virtual Interface 8-6
Split-Horizon 8-6
Rewrite Operations 8-6

Configuring EFPs 8-7

Default EVC Configuration 8-7
Configuration Guidelines 8-7
Creating Service Instances 8-8

Configuration Examples of Supported Features 8-10

Example: Configuring a Service Instance 8-10
Example: Encapsulation Using a VLAN Range 8-10
Example: Two Service Instances Joining the Same Bridge Domain 8-10
Example: Bridge Domains and VLAN Encapsulation 8-10
Example: Rewrite 8-11
Example: Split Horizon 8-11

Contents

Configuration Examples of Unsupported Features 8-12

Example: Filtering 8-12
Example: Overlapping Encapsulation 8-12

How to Configure EVC Default Encapsulation 8-13

Configuring EVC Default Encapsulation with Bridge-Domain 8-13
Configuring EVC Default Encapsulation with Xconnect 8-14
Verifying EVC Default Encapsulation with Bridge-Domain 8-15
Verifying EVC Default Encapsulation with Xconnect 8-16
Configuration Examples for EVC Default Encapsulation 8-16

Example: Configuring EVC Default Encapsulation with Bridge-Domain 8-16
Example: Configuring EVC Default Encapsulation with Xconnect 8-16

Configuring Other Features on EFPs 8-16

EFPs and EtherChannels 8-17
MAC Address Forwarding, Learning and Aging on EFPs 8-17

Disabling MAC Address Learning on an Interface or Bridge Domain 8-18

Configuring IEEE 802.1Q Tunneling using EFPs 8-20

802.1Q Tunneling (QinQ) 8-20
Restrictions 8-22

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Configuration Examples 8-22

Routed QinQ 8-23

Restrictions 8-23
Configuration Example 8-23

Bridge Domain Routing 8-24

Restrictions 8-24
Example: Configuring Bridge-Domain Routing 8-24

How to Configure DHCP Client on SVI 8-25

Configuring DHCP Client on SVI 8-25
Verifying DHCP Client on SVI 8-26

Configuration Example for DHCP Client on SVI 8-26
EFPs and Switchport MAC Addresses 8-27
EFPs and MSTP 8-27

Monitoring EVC 8-28

Sample Configuration with Switchport to EVC Mapping 8-29

Configuration Example 8-30

CHAPTER

Additional References 8-32

Related Documents 8-32
Standards 8-32
MIBs 8-32
RFCs 8-32
Technical Assistance 8-32

Feature Information for Configuring Ethernet Virtual Connections 8-33

9 Configuring EtherChannels 9-1

Contents 9-1

Understanding How EtherChannels Work 9-1

EtherChannel Feature Overview 9-1
Understanding How EtherChannels Are Configured 9-2

EtherChannel Configuration Overview 9-2

Understanding Manual EtherChannel Configuration 9-2

Understanding IEEE 802.3ad LACP EtherChannel Configuration 9-2
Understanding Port-Channel Interfaces 9-4
Understanding Load Balancing 9-4

viii

EtherChannel Configuration Guidelines and Restrictions 9-4

Configuring Etherchannels 9-5

Configuring Channel Groups 9-5
Configuring the LACP System Priority and System ID 9-6
Configuring the LACP Transmit Rate 9-7

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Verifying the LACP Transmit Rate 9-8
Configuring EtherChannel Load Balancing 9-8
Modifying MTU Size on Port-Channel 9-9

Restrictions 9-9
Verifying the MTU Size on Port-Channel 9-9

EVC On Port-Channel 9-10

Restrictions for EVC EtherChannel 9-10
Configuring EVC on Port-Channel 9-11

Verifying the Configuration 9-11
Troubleshooting 9-12

Contents

CHAPTER

10 Configuring Ethernet OAM 10-1

Contents 10-1
Understanding Ethernet CFM 10-2

IP SLA Support for CFM 10-2

Configuring Ethernet CFM 10-2

Default Ethernet CFM Configuration 10-3
Ethernet CFM Configuration Restrictions and Guidelines 10-3
Configuring the CFM Domain 10-3
Configuring Multi-UNI CFM MEPs in the Same VPN 10-7
Configuring Ethernet CFM Crosscheck 10-12
Configuring Static Remote MEP 10-13
Configuring a Port MEP 10-14
Configuring SNMP Traps 10-15
Configuring IP SLA CFM Operation 10-16
Manually Configuring an IP SLA CFM Probe or Jitter Operation 10-16

Configuring CFM over EFP with Cross Connect 10-19

Configuring CFM over EFP Interface with Cross Connect 10-20
Configuring CFM over EFP Interface with Cross Connect—Port Channel-Based Cross Connect

Tunnel

10-22

Configuring CFM with EVC Default Encapsulation 10-24
Verifying CFM with EVC Default Encapsulation 10-25

Example: Configuring CFM with EVC Default Encapsulation 10-26

Configuring Y.1731 Fault Management 10-26

Default Y.1731 Configuration 10-26
Configuring ETH-AIS 10-27

Configuring ETH-LCK 10-28
Managing and Displaying Ethernet CFM Information 10-30
Understanding the Ethernet OAM Protocol 10-32

OAM Features 10-33

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Contents

Setting Up and Configuring Ethernet OAM 10-35

Default Ethernet OAM Configuration 10-36
Restrictions and Guidelines 10-36
Enabling Ethernet OAM on an Interface 10-36
Enabling Ethernet OAM Remote Loopback 10-38
Configuring Ethernet OAM Link Monitoring 10-38
Configuring Ethernet OAM Remote Failure Indications 10-41
Configuring Ethernet OAM Templates 10-42
Displaying Ethernet OAM Protocol Information 10-45
Verifying Ethernet OAM Configuration 10-46

Understanding E-LMI 10-48

Restrictions 10-49
Configuring E-LMI 10-49

Default E-LMI Configuration 10-49
Enabling E-LMI 10-50

Displaying E-LMI Information 10-51

CHAPTER

Understanding Ethernet Loopback 10-51

Configuring Ethernet Loopback 10-51

Restrictions 10-52
Enabling Ethernet Loopback 10-52
Configuration Example 10-54

Configuring Y.1564 to Generate Ethernet Traffic 10-56

Configuring IP SLA for Traffic Generation 10-58
Configuration Examples 10-60

11 ITU-T Y.1731 Performance Monitoring 11-1

Finding Feature Information 11-1

Contents 11-1

Prerequisites for ITU-T Y.1731 Performance Monitoring 11-1

Restrictions for ITU-T Y.1731 Performance Monitoring 11-2

Information About ITU-T Y.1731 Performance Monitoring 11-2

Frame Delay and Frame-Delay Variation 11-3
Frame Loss Ratio 11-4
On-Demand and Concurrent Operations 11-4

Supported interfaces 11-5

Benefits of ITU-T Y.1731 Performance Monitoring 11-5

How to Configure ITU-T Y.1731 Performance Monitoring 11-5

Configuring Two-Way Delay Measurement 11-6
Configuring Single-Ended Synthetic Loss Measurement 11-9

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Scheduling IP SLAs Operations 11-14

Prerequisites 11-14

Verifying the Frame Delay and Synthetic Loss Measurement Configurations 11-15

Example: Verifying Sender MEP for a Two-Way Delay Measurement Operation 11-16
Example: Verifying Receiver MEP for a Two-Way Delay Measurement Operation 11-16
Example: Verifying Sender MEP for a Synthetic Loss Measurement Operation 11-17
Example: Verifying Ethernet CFM Performance Monitoring 11-17
Example: Verifying History for IP SLAs Operations 11-18

How to Configure IP SLAs Y.1731 On-Demand and Concurrent Operations 11-19

Configuring Direct On-Demand Operation on a Sender MEP 11-19

Prerequisites 11-19
Configuring Referenced On-Demand Operation on a Sender MEP 11-20

Prerequisites 11-20
Configuring IP SLAs Y.1731 Concurrent Operation on a Sender MEP 11-21

Configuration Examples for IP SLAs Y.1731 On-Demand Operations 11-21

Example: On-Demand Operation in Direct Mode 11-21
Example: On-Demand Operation in Referenced Mode 11-22

Contents

CHAPTER

Additional References 11-23

Related Documents 11-23
Standards 11-23
MIBs 11-23
RFCs 11-23
Technical Assistance 11-24

Feature Information for ITU-T Y.1731 Performance Monitoring 11-25

12 Configuring Resilient Ethernet Protocol 12-1

Contents 12-1

Understanding Resilient Ethernet Protocol (REP) 12-1

Overview 12-1
Restrictions 12-3
Link Integrity 12-4
Fast Convergence 12-4
VLAN Load Balancing (VLB) 12-4
REP Ports 12-6

Configuring Resilient Ethernet Protocol (REP) 12-7

Default REP Configuration 12-7
REP Configuration Guidelines 12-7
Configuring the REP Administrative VLAN 12-9

SUMMARY STEPS 12-9

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DETAILED STEPS 12-9

Configuring REP Interfaces 12-10

SUMMARY STEPS 12-10
DETAILED STEPS 12-11

Configuring REP as Dual Edge No-Neighbor Port 12-15

SUMMARY STEPS 12-15
DETAILED STEPS 12-16
Cisco ASR 901 Dual Rep Edge No-Neighbor Topology Example 12-18

Setting up Manual Preemption for VLAN Load Balancing 12-20

SUMMARY STEPS 12-20
DETAILED STEPS 12-20

Configuring SNMP Traps for REP 12-21

SUMMARY STEPS 12-21
DETAILED STEPS 12-21

Monitoring REP 12-22

SUMMARY STEPS 12-22
DETAILED STEPS 12-23

CHAPTER

Configuration Examples for REP 12-24

Configuring the REP Administrative VLAN: Example 12-24
Configuring a REP Interface: Example 12-24
Setting up the Preemption for VLAN Load Balancing: Example 12-25
Configuring SNMP Traps for REP: Example 12-25
Monitoring the REP Configuration: Example 12-25
Cisco ASR 901 Topology Example 12-26

13 Configuring MST on EVC Bridge Domain 13-1

Contents 13-1

Overview of MST and STP 13-1
Overview of MST on EVC Bridge Domain 13-2
Restrictions and Guidelines 13-2
Configuring MST on EVC Bridge Domain 13-4

Configuration Example for MST on EVC Bridge Domain 13-6
Verification 13-6
Troubleshooting Tips 13-9

CHAPTER

CHAPTER

xii

14 Configuring Multiprotocol Label Switching 14-1

15 Configuring EoMPLS 15-1

Contents 15-1

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Understanding EoMPLS 15-1

Restrictions 15-2

Configuring EoMPLS 15-2

EoMPLS Configuration Example 15-3

Configuring Pseudowire Redundancy 15-4

Configuration Commands 15-4

Port Based EoMPLS 15-5

Contents

CHAPTER

CHAPTER

16 Configuring MPLS VPNs 16-1

Contents 16-1

Understanding MPLS VPNs 16-1

Configuring MPLS VPNs 16-2

Configuration Examples for MPLS VPN 16-2

17 Configuring MPLS OAM 17-1

Contents 17-1

Understanding MPLS OAM 17-1

LSP Ping 17-1
LSP Traceroute 17-2
LSP Ping over Pseudowire 17-2

Configuring MPLS OAM 17-2

Using LSP Ping for LDP IPv4 FEC 17-3
Using LSP Traceroute for LDP IPv4 FEC 17-3
Using LSP Ping for Pseudowire 17-3
Using LSP Traceroute over Pseudowire 17-4
Displaying AToM VCCV capabilities 17-4

17-4

CHAPTER

CHAPTER

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18 Configuring Routing Protocols 18-1

Changing Default Hashing Algorithm for ECMP 18-1

19 Configuring Bidirectional Forwarding Detection 19-1

Contents 19-1

Understanding BFD 19-1

Configuring BFD 19-1

BFD Configuration Guidelines and Restrictions 19-2
Configuring BFD for OSPF 19-2

Configuring BFD for OSPF on One of More Interfaces 19-2

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Configuring BFD for OSPF on All Interfaces 19-3
Configuring BFD for BGP 19-4
Configuring BFD for IS-IS 19-4

Configuring BFD for IS-IS on a Single Interface 19-4

Configuring BFD for IS-IS for All Interfaces 19-5
Configuring BFD for Static Routes 19-6

Configuration Examples for BFD 19-7

BFD with OSPF on All Interfaces 19-7
BFD with OSPF on Individual Interfaces 19-7
BFD with BGP 19-8
BFD with IS-IS on All Interfaces 19-8
BFD with IS-IS on Individual Interfaces 19-8
BFD with Static Routes 19-9

CHAPTER

CHAPTER

20 Configuring T1/E1 Controllers 20-1

Contents 20-1

Configuring the Card Type 20-1

Configuring E1 Controllers 20-2

Configuring T1 Controllers 20-4

Troubleshooting Controllers 20-5

Troubleshooting E1 Controllers 20-5
Troubleshooting T1 Controllers 20-6

21 Configuring Pseudowire 21-1

Finding Feature Information 21-1

Contents 21-1

Understanding Pseudowires 21-2

Structure-Agnostic TDM over Packet 21-2
Structure-Aware TDM Circuit Emulation Service over Packet-Switched Network 21-3
Transportation of Service Using Ethernet over MPLS 21-3

Limitations 21-3

xiv

Hot Standby Pseudowire Support for ATM/IMA 21-3

Configuring Pseudowire 21-4

Configuring Pseudowire Classes 21-4
Configuring CEM Classes 21-6
Configuring a Backup Peer 21-8
Configuring Structure-Agnostic TDM over Packet 21-9

Configuring a SAToP Pseudowire with UDP Encapsulation 21-11

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Configuring Circuit Emulation Service over Packet-Switched Network 21-14

Configuring a CESoPSN Pseudowire with UDP Encapsulation 21-15
QoS for CESoPSN over UDP and SAToP over UDP 21-18
Configuring Transportation of Service Using Ethernet over MPLS 21-18

Configuring L2VPN Pseudowire Redundancy 21-20

Example: Pseudowire Redundancy 21-22

Configuring Hot Standby Pseudowire Support for ATM/IMA 21-22

Configuring ATM/IMA Pseudowire Redundancy in PVC Mode 21-22
Configuring ATM/IMA Pseudowire Redundancy in PVP Mode 21-24
Configuring ATM/IMA Pseudowire Redundancy in Port Mode 21-25

Verifying Hot Standby Pseudowire Support for ATM/IMA 21-26

TDM Local Switching 21-27

Restrictions 21-28
Configuring TDM Local Switching on a T1/E1 Mode 21-28

DETAILED STEPS 21-28
Verifying Local Switching 21-29

Contents

CHAPTER

Configuration Example for Local Switching 21-29

Configuration Examples of Hot Standby Pseudowire Support for ATM/IMA 21-30

Example: Configuring ATM/IMA Pseudowire Redundancy in PVC Mode 21-30
Example: Configuring ATM/IMA Pseudowire Redundancy in PVP Mode 21-30
Example: Configuring ATM/IMA Pseudowire Redundancy in Port Mode 21-31

Configuration Examples for Pseudowire 21-31

Example: TDM over MPLS Configuration-Example 21-31
Example: CESoPSN with UDP 21-34
Example: Ethernet over MPLS 21-35

Additional References 21-36

Related Documents 21-36
Standards 21-36
MIBs 21-36
RFCs 21-36
Technical Assistance 21-36

Feature Information for Configuring Pseudowire 21-37

22 Configuring Clocking 22-1

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Contents 22-1

Restrictions 22-1

Configuring Network Clock for Cisco ASR 901 Router 22-2

Configuring Network Clock in Global Configuration Mode 22-3

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Configuring Network Clock in Interface Configuration Mode 22-6
Understanding SSM and ESMC 22-7

Synchronization Status Message 22-7
Ethernet Synchronization Messaging Channel 22-7
Clock Selection Algorithm 22-7
ESMC behavior for Port Channels 22-8

ESMC behavior for STP Blocked Ports 22-8
Configuring ESMC in Global Configuration Mode 22-8
Configuring ESMC in Interface Configuration Mode 22-9

Verifying ESMC Configuration 22-10
Managing Synchronization 22-11

Synchronization Example 22-12
Configuring Synchronous Ethernet for Copper Ports 22-13
Verifying the Synchronous Ethernet configuration 22-13
Troubleshooting Tips 22-16

Troubleshooting ESMC Configuration 22-17

Configuring PTP for the Cisco ASR 901 Router 22-18

Restrictions 22-18
Setting System Time to Current Time 22-19
Configuring PTP Ordinary Clock 22-19

Configuring Master Ordinary Clock 22-19

Configuring Slave Ordinary Clock 22-21
Configuring PTP in Unicast Mode 22-25
Configuring PTP in Unicast Negotiation Mode 22-25
PTP Boundary Clock 22-26

Configuring PTP Boundary Clock 22-27
Verifying PTP modes 22-29
Verifying PTP Configuration on the 1588V2 Slave 22-31
Verifying PTP Configuration on the 1588V2 Master 22-32
PTP Hybrid Clock 22-34

Configuring a Hybrid Ordinary Clock 22-34

Configuring a Hybrid Boundary Clock 22-37

Verifying Hybrid modes 22-38
SSM and PTP Interaction 22-39
ClockClass Mapping 22-40

Telecom Profiles 22-40
PTP Redundancy 22-40

Configuring Telecom Profile in Slave Ordinary Clock 22-41

Configuring Telecom Profile in Master Ordinary Clock 22-43

Verifying Telecom profile 22-44

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Setting the TimeProperties 22-46
ASR901 Negotiation Mechanism 22-46

Static Unicast Mode 22-46
Configuring ToD on 1588V2 Slave 22-47
Troubleshooting Tips 22-47

Contents

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CHAPTER

23 Cisco IOS IP SLA 23-1

Contents 23-1

Configuring IPSLA Path Discovery 23-1

Example for IPSLA Path Discovery 23-3

Two-Way Active Measurement Protocol 23-5

Configuring TWAMP 23-6
Configuring the TWAMP Server 23-7
Configuring the TWAMP Reflector 23-8
Configuration Examples for TWAMP 23-8

Example: Configuring the Router as an IP SLA TWAMP server 23-9

Example: Configuring the Router as an IP SLA TWAMP Reflector 23-9

24 Configuring QoS 24-1

Finding Feature Information 24-1

Contents 24-1

Understanding QoS 24-2

Modular QoS CLI 24-4
Input and Output Policies 24-5

Input Policy Maps 24-5

Output Policy Maps 24-6
Access Control Lists 24-6

Restrictions 24-6
Classification 24-7

Class Maps 24-8

The match Command 24-8

Classification Based on Layer 2 CoS 24-9

Classification Based on IP Precedence 24-9

Classification Based on IP DSCP 24-9

Classification Comparisons 24-10

Classification Based on QoS Groups 24-11

Classification Based on VLAN IDs 24-12
Table Maps 24-13
Policing 24-14

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Individual Policing 24-15
Unconditional Priority Policing 24-16

Egress Policing 24-17
Marking 24-18
Congestion Management and Scheduling 24-19

Traffic Shaping 24-19

Class-Based Weighted Fair Queuing 24-21

Priority Queuing 24-23
Ingress and Egress QoS Functions 24-24

Configuring Quality of Service (QoS) 24-25

QoS Limitations 24-25

General QoS Limitations 24-26

Statistics Limitations 24-26

Propagation Limitations 24-27

Classification Limitations 24-27

Marking Limitations 24-28

Congestion Management Limitations 24-29

ACL-based QoS Restrictions 24-30
Improving Feature Scalability 24-31

TCAM with QoS 24-31
QoS for MPLS/IP over MLPPP 24-31

QoS for CPU Generated Traffic 24-31
QoS Configuration Guidelines 24-32
Sample QoS Configuration 24-33
Configuring Classification 24-34

Creating a Class Map for Classifying Network Traffic 24-34

Creating a Policy Map for Applying a QoS Feature to Network Traffic 24-35

Attaching the Policy Map to an Interface 24-36

Attaching Policy Map to Cross Connect EVC 24-37
Configuring Marking 24-38

Creating a Class Map for Marking Network Traffic 24-39

Creating a Policy Map for Applying a QoS Feature to Network Traffic 24-39

Attaching the Policy Map to an Interface 24-40

Configuring MPLS Exp Bit Marking using a Pseudowire 24-41
Configuring Congestion Management 24-42

Configuring Low Latency Queueing (LLQ) 24-42

Configuring Multiple Priority Queueing 24-43

Configuration Examples 24-44

Configuring Class-Based Weighted Fair Queuing (CBFQ) 24-45

Weighted Random Early Detection (WRED) 24-46

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Configuring Shaping 24-47

Configuring Class-Based Traffic Shaping in a Primary-Level (Parent) Policy Map 24-47

Configuring the Secondary-Level (Child) Policy Map 24-48
Configuring Ethernet Trusted Mode 24-49
Creating IP Extended ACLs 24-49
Using Class Maps to Define a Traffic Class 24-50
Creating a Named Access List 24-52

Restrictions 24-52

What to do Next 24-53

TCAM with ACL 24-54
Verifying Named Access List 24-55
Configuration Example for Named Access List 24-56

QoS Treatment for Performance-Monitoring Protocols 24-62

Cisco IP-SLAs 24-62
QoS Treatment for IP-SLA Probes 24-62

Marking 24-62

Queuing 24-62
QoS Marking for CPU-Generated Traffic 24-62
QoS Queuing for CPU-Generated Traffic 24-63

Contents

Extending QoS for MLPPP 24-64

Configuring Class-map for Matching MPLS EXP Bits 24-64
Configuring Class-map for Matching IP DSCP Value 24-65
Configuring Class-map for Matching MPLS EXP Bits or IP DSCP Value 24-66
Configuring a Policy-map 24-67
Attaching the Policy-map to MLPPP Interface 24-70
Re-marking IP DSCP Values of CPU Generated Traffic 24-72
Re-marking MPLS EXP Values of CPU Generated Traffic 24-73
Configuring a Policy-map to Match on CS5 and EXP4 24-74
Attaching the Policy-map to Match on CS5 and EXP4 to MLPPP Interface 24-76
Configuration Examples for Extending QoS for MPLS over MLPPP 24-76

Configuring Class-map for Matching MPLS EXP Bits 24-76

Configuring Class-map for Matching IP DSCP Value 24-77

Configuring Class-map for Matching MPLS EXP Bits or IP DSCP Value 24-77

Configuring a Policy-map 24-77

Configuring a Policy-map to Match on CS5 and EXP 4 24-78

Attaching the Policy-map to MLPPP Interface 24-78

Verifying MPLS over MLPPP Configuration 24-79

Configuration Guidelines 24-80

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Troubleshooting Tips 24-81

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Additional References 24-87

Related Documents 24-87
Standards 24-87
MIBs 24-87
RFCs 24-87
Technical Assistance 24-87

Feature Information for Configuring QoS 24-88

CHAPTER

25 Configuring MLPPP 25-1

Finding Feature Information 25-1

Contents 25-1

Prerequisites 25-2

Restrictions 25-2

MLPPP Optimization Features 25-2

Distributed Multilink Point-to-Point Protocol Offload 25-2
Multiclass MLPPP 25-3
MPLS over MLPPP 25-3

MPLS Features Supported for MLPPP 25-4
MPLS over MLPPP on PE-to-CE Links 25-4
MPLS over MLPPP on Core Links 25-5
MPLS over MLPPP on CE to PE Links 25-5

Configuring MLPPP Backhaul 25-6

Configuring the Card Type, E1 and T1 Controllers 25-6
Configuring a Multilink Backhaul Interface 25-6

Creating a Multilink Bundle 25-6
Configuring MRRU 25-7
Configuring PFC and ACFC 25-8
Enabling Multilink and Identifying the Multilink Interface 25-11
Configuring a Serial Interface as a Member Link of a MLPPP Group 25-12
MLPPP Offload 25-13

Configuring Additional MLPPP Settings 25-14
Configuring MPLS over the MLPPP on a Serial Interface 25-14
Configuring MPLS over MLPPP for OSPF 25-16
Configuration Examples for MPLS over MLPPP 25-18
Verifying MPLS over MLPPP Configuration 25-19

xx

Additional References 25-21

Related Documents 25-21
Standards 25-21
MIBs 25-21

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RFCs 25-21
Technical Assistance 25-21

Feature Information for MLPPP 25-22

Contents

CHAPTER

CHAPTER

26 Onboard Failure Logging 26-1

Contents 26-1

Understanding OBFL 26-1

Configuring OBFL 26-2

Verifying OBFL Configuration 26-2

27 Hot Standby Router Protocol and Virtual Router Redundancy Protocol 27-1

Finding Feature Information 27-1

Contents 27-1

Information About HSRP and VRRP 27-2

Overview of HSRP and VRRP 27-2
Text Authentication 27-2
Preemption 27-2

How to Configure HSRP 27-3

Configuring HSRP 27-3

Restrictions 27-3

Configuration Examples for HSRP 27-5

Example: Configuring HSRP Active Router 27-5
Example: Configuring HSRP Backup Router 27-5
Example: HSRP Text Authentication 27-6

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How to Configure VRRP 27-6

Configuring VRRP 27-6

Restrictions 27-6

Configuration Examples for VRRP 27-8

Example: Configuring a VRRP Master Router 27-8
Example: Configuring a VRRP Backup Router 27-8
Example: VRRP Text Authentication 27-9

Where to Go Next 27-9

Additional References 27-9

Related Documents 27-9
Standards 27-9
MIBs 27-10
RFCs 27-10
Technical Assistance 27-10

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Feature Information for HSRP and VRRP 27-11

CHAPTER

28 Configuring Link Layer Discovery Protocol 28-1

Finding Feature Information 28-1

Contents 28-1

Restrictions for LLDP 28-2

Overview of LLDP 28-2

How to Configure LLDP 28-2

Configuring LLDP 28-2
Verifying LLDP 28-4

Configuration Example for LLDP 28-4

Example: Enabling LLDP Globally 28-4
Example: Configuring Hold Time 28-4
Example: Configuring Delay Time 28-5
Example: Configuring Intervals 28-5

Where to Go Next 28-6

Additional References 28-7

Related Documents 28-7
Standards 28-7
MIBs 28-7
RFCs 28-7
Technical Assistance 28-8

CHAPTER

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Feature Information for LLDP 28-8

29 Configuring Multihop Bidirectional Forwarding Detection 29-1

Finding Feature Information 29-1

Contents 29-1

Restrictions for Multihop BFD 29-2

Information About Multihop BFD 29-2

Overview of Multihop BFD 29-2

How to Configure Multihop BFD 29-2

Configuring Multihop BFD Template 29-2
Configuring a Multihop BFD Map 29-4

Configuration Examples for Multihop BFD 29-4

Example : Configuring Multihop BFD 29-4

Where to Go Next 29-5

Additional References 29-6

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Related Documents 29-6
Standards 29-6
MIBs 29-6
RFCs 29-6
Technical Assistance 29-7

Feature Information for Multihop BFD 29-7

Contents

CHAPTER

30 Bit Error Rate Testing 30-1

Finding Feature Information 30-1

Contents 30-1

Prerequisites 30-1
Restrictions 30-2

Feature Overview 30-2

How to Configure BERT 30-2

Performing BERT on a T1/E1 Line 30-3
Terminating BERT on a T1/E1 Controller 30-3
Verifying BERT on a T1/E1 Controller 30-4

Configuration Examples 30-5

Additional References 30-5

Related Documents 30-6
Standards 30-6
MIBs 30-6
RFCs 30-6
Technical Assistance 30-6

Feature Information for Bit Error Rate Testing 30-6

CHAPTER

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31 Microwave ACM Signaling and EEM Integration 31-1

Finding Feature Information 31-1

Contents 31-1

Prerequisites 31-2

Feature Overview 31-2

Benefits 31-3

How to Configure Microwave ACM Signaling and EEM Integration 31-4

Configuring Connectivity Fault Management 31-4
Configuring EEP Applet Using CLIs 31-7

Prerequisites 31-7
Configuring Event Handler 31-9
Verifying Microwave Microwave ACM Signaling and EEM Integration Configuration 31-10

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Configuration Examples for Microwave ACM Signaling and EEM Integration 31-11

Example: Configuring CFM 31-11
Example: Configuring EEP Applet 31-11
Example: Configuring Event Handler 31-15

Additional References 31-16

Related Documents 31-16
Standards 31-16
MIBs 31-16
RFCs 31-16
Technical Assistance 31-16

Feature Information for Microwave ACM Signaling and EEM Integration 31-17

CHAPTER

32 IPv6 Support on the Cisco ASR 901 Router 32-1

Finding Feature Information 32-1

Contents 32-1

Prerequisites for IPv6 Support on the Cisco ASR 901 Router 32-2

Restrictions for IPv6 Support on the Cisco ASR 901 Router 32-2

Information About IPv6 Support on the Cisco ASR 901 Router 32-2

Benefits 32-3
Overview of IPv6 32-3
IPv6 Address Formats 32-3
IPv6 Addressing and Discovery 32-4

Static Configuration 32-4
Stateless Autoconfiguration 32-5
ICMPv6 32-5
IPv6 Duplicate Address Detection 32-6
IPv6 Neighbor Discovery 32-6
IPv4 and IPv6 Dual-Stack on an Interface 32-6

Routing Protocols 32-7

IS-IS Enhancements for IPv6 32-7
OSPFv3 for IPv6 32-7

Multiprotocol BGP Extensions for IPv6 32-7
Bidirectional Forwarding Detection for IPv6 32-7
QoS for IPv6 32-8

xxiv

How to Configure IPv6 Support on the Cisco ASR 901 Router 32-8

Configuring IPv6 Addressing and Enabling IPv6 Routing 32-8
Configuring a Static IPv6 Route 32-10
Enabling Stateless Auto-Configuration 32-11
Implementing IPv6 on VLAN Interfaces 32-12

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Implementing IPv6 Addressing on Loopback Interfaces 32-13
Configuring ICMPv6 Rate Limiting 32-14
Configuring IPv6 Duplicate Address Detection 32-15
Configuring IPv6 Neighbor Discovery 32-16
Configuring IPv6 and IPv4 Dual-Stack on the Same VLAN 32-17

Prerequisites 32-17
Configuring OSPFv3 for IPv6 32-18
Configuring IS-IS for IPv6 32-19
Configuring Multiprotocol-BGP for IPv6 32-21
Configuring BFD for IPv6 32-22

Specifying a Static BFDv6 Neighbor 32-22

Associating an IPv6 Static Route with a BFDv6 Neighbor 32-23
Configuring BFDv6 and OSPFv3 32-25

Prerequisites 32-25
Configuring BFDv6 for BGP 32-26
Implementing QoS for IPv6 32-27
Verifying the Configuration of IPv6 Support on the Cisco ASR 901 Router 32-27

Verifying IPv6 Addressing Routing 32-27

Verifying a Static IPv6 Route 32-28

Verifying a Stateless Auto-Configuration 32-29

Verifying IPv6 Implementation on VLAN Interfaces 32-29

Verifying IPv6 Implementation on Loopback Interfaces 32-30

Verifying ICMPv6 Configuration 32-30

Verifying IPv6 Duplicate Address Detection Configuration 32-32

Verifying IPv6 Neighbor Discovery Configuration 32-33

Verifying IPv6 and IPv4 Dual-Stack Configuration 32-33

Verifying OSPFv3 for IPv6 Configuration 32-34

Verifying IS-IS for IPv6 Configuration 32-35

Verifying Multiprotocol-BGP for IPv6 Configuration 32-35

Verifying BFD for IPv6 Configuration 32-37

Verifying BFDv6 and OSPFv3 Configuration 32-38

Verifying BFDv6 for BGP Configuration 32-39

Contents

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Configuration Examples for IPv6 Support on the Cisco ASR 901 Router 32-39

Example: IPv6 Addressing on VLAN Interfaces 32-40
Example: IPv6 Addressing on Loopback Interfaces 32-40
Example: Customizing ICMPv6 32-40
Example: Configuring IPv6 Duplicate Address Detection 32-40
Example: Configuring IPv6 Neighborhood Discovery 32-41
Example: Enabling IPv6 Stateless Address Autoconfiguration 32-41
Example: Configuring the IPv4 and IPv6 Dual-Stack 32-41

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Example: Configuring IPv6 Static Routing 32-41
Example: Configuring BFD and Static Routing for IPv6 32-42
Example: Configuring OSPFv3 for IPv6 32-42
Example: Configuring BFD and OSPFv3 for IPv6 32-42
Example: Configuring IS-IS for IPv6 32-43
Example: Configuring Multiprotocol-BGP for IPv6 32-44
Example: Configuring BFD and Multiprotocol-BGP for IPv6 32-45

Troubleshooting Tips 32-46

Where to Go Next 32-46

Additional References 32-47

Related Documents 32-47
Standards 32-47
MIBs 32-47
RFCs 32-47
Technical Assistance 32-48

CHAPTER

Feature Information for IPv6 Support on the Cisco ASR 901 Router 32-49

33 Labeled BGP Support 33-1

Finding Feature Information 33-1

Contents 33-1

Prerequisites 33-2
Restrictions 33-2

Overview of Labeled BGP Support 33-2

How to Configure Labeled BGP Support 33-2

Configuration Example for Labeled Support 33-3
Verifying Labeled BGP Support 33-4

Additional References 33-7

Related Documents 33-7
Standards 33-7
MIBs 33-7
RFCs 33-7
Technical Assistance 33-7

Feature Information for Labeled BGP Support 33-8

CHAPTER

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34 MPLS Traffic Engineering - Fast Reroute Link Protection 34-1

Finding Feature Information 34-1

Contents 34-1

Prerequisites 34-2

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Restrictions 34-2

Feature Overview 34-2

BFD-triggered Fast Reroute 34-3

BFD 34-4

Fast Reroute 34-4

Link Protection 34-4

How to Configure Traffic Engineering - Fast Reroute Link Protection 34-4

Enabling MPLS TE-FRR on an SVI Interface 34-5
Enabling MPLS TE-FRR for EoMPLS on a Global Interface 34-5
Enabling MPLS TE-FRR for EoMPLS on an Interface 34-7
Enabling MPLS TE-FRR for IS-IS 34-9
Configuring Primary One-hop Auto-Tunnels 34-11
Configuring Backup Auto-Tunnels 34-13
Enabling Targeted LDP session over Primary one-hop Auto-Tunnels 34-14
Enabling BFD Triggered FRR on an SVI Interface 34-15
Enabling BFD Triggered FRR on a Router 34-16

Contents

Verification Examples 34-17

Verifying MPLS TE-FRR Configuration 34-17
Verifying Primary One-hop Auto-Tunnels 34-19
Verifying Backup Auto-Tunnels 34-19
Verifying BFD Triggered FRR Configuration 34-20

Configuration Examples 34-24

Example: Configuring MPLS TE-FRR 34-24
Example: Configuring Primary One-hop Auto-Tunnels 34-24
Example: Configuring Backup Auto-Tunnels 34-24
Example: Configuring BFD Triggered FRR 34-24

Additional References 34-25

Related Documents 34-25
Standards 34-25
MIBs 34-25
RFCs 34-25
Technical Assistance 34-26

Feature Information for MPLS Traffic Engineering - Fast Reroute Link Protection 34-27

CHAPTER

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35 Layer 2 Control Protocol Peering, Forwarding, and Tunneling 35-1

Finding Feature Information 35-1

Contents 35-1

Prerequisites 35-1
Restrictions 35-2

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Contents

Layer 2 Control Protocol Forwarding 35-2

Layer 2 Control Protocol Tunneling 35-2

How to Configure Layer 2 Control Protocol Peering, Forwarding, and Tunneling 35-3

Configuring Layer 2 Peering 35-4

Restrictions 35-4

Configuring Layer 2 Forwarding 35-5

Restrictions 35-5

Configuring Layer 2 Tunneling 35-7

Restrictions 35-7
Verifying Layer 2 Peering 35-9
Verifying Layer 2 Forwarding 35-9
Verifying Layer 2 Tunneling 35-9

Configuration Examples 35-10

Example: Configuring Layer 2 Peering 35-10
Example: Configuring Layer 2 Forwarding 35-10
Example: Configuring Layer 2 Tunneling 35-11

CHAPTER

Additional References 35-13

Related Documents 35-14
Standards 35-14
MIBs 35-14
RFCs 35-14
Technical Assistance 35-14

Feature Information for Layer 2 Control Protocol Peering, Forwarding, and Tunneling 35-15

36 Configuring Inverse Muliplexing over ATM 36-1

Finding Feature Information 36-1

Contents 36-1

Prerequisites 36-1
Restrictions 36-2

Feature Overview 36-2

How to Configure IMA 36-2

Configuring ATM IMA on T1/E1 Interface 36-3

Configuring ATM IMA over MPLS 36-4

Configuring the T1/E1 Controller 36-4
Configuring an ATM IMA Interface 36-5
Configuring ATM over MPLS Pseudowire Interface 36-6

Configuring a Port Mode Pseudowire 36-7

Configuring an N-to-1 VCC Cell Mode 36-7

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Configuring an N-to-1 vPC Cell Mode 36-8
ATM AAL5 SDU VCC Transport 36-9

Verifying IMA Configurations 36-10

How to Configure ATM Class of Service 36-11

Configuring Constant Bit Rate 36-11
Configuring Unspecified Bit Rate 36-12
Configuring Unspecified Bit Rate Plus 36-13
Configuring Variable Bit Rate for Real/Non-Real Time Traffic 36-14
Configuration Examples 36-15

Example: Creating an IMA Interface 36-15
Example: Configuring a Port Mode Pseudowire 36-15
Example: Configuring an N-to-1 VCC Cell Mode 36-16
Example: Configuring an N-to-1 VPC Cell Mode 36-16
Example: Configuring CBR 36-16
Example: Configuring UBR 36-16
Example: Configuring UBR Plus 36-17
Example: Configuring VBR for Real Time Traffic 36-17
Example: Configuring VBR for Non-Real Time Traffic 36-17

Contents

CHAPTER

Configuring Marking MPLS Experimental Bits 36-17

Creating a Policy-map for PVP/PVC/ATM IMA Interface 36-17
Applying the Policy-map 36-18

Applying a Policy map on PVC and PVP 36-18

Applying a Policy map on ATM IMA Interface 36-20
Creating a Table-map 36-21
Creating a Policy-map for SVI Interface 36-22
Applying a Service Policy on SVI Interface 36-23

Additional References 36-25

Related Documents 36-25
Standards 36-25
MIBs 36-25
RFCs 36-25
Technical Assistance 36-25

Feature Information for Inverse Multiplexing over ATM 36-26

37 IPv6 over MPLS: 6PE and 6VPE 37-1

Finding Feature Information 37-1

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Contents 37-1

Prerequisites 37-2
Restrictions 37-2

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Feature Overview 37-2

Benefits of 6PE and 6VPE 37-3
IPv6 on Provider Edge Routers 37-3
IPv6 on VPN Provider Edge Routers 37-4

Components of MPLS-based 6VPE Network 37-4

Supported Features 37-5

Scalability Numbers 37-6

How to Configure IPv6 over MPLS: 6PE and 6VPE 37-6

Configuring 6PE 37-6
Configuring 6VPE 37-9

Setting up IPv6 Connectivity from PE to CE Routers 37-9
Setting up MP-BGP Peering to the Neighboring PE 37-10
Setting up MPLS/IPv4 Connectivity with LDP 37-12
Creating IPv6 VRFs on PE Routers 37-13

Verifying IPv6 over MPLS: 6PE and 6VPE Configuration 37-15

CHAPTER

Configuration Examples 37-18

Example: Configuring 6PE 37-18
Example: Configuring 6VPE 37-19

Additional References 37-20

Related Documents 37-20
Standards 37-20
MIBs 37-20
RFCs 37-20
Technical Assistance 37-20

Feature Information for IPv6 over MPLS: 6PE and 6VPE 37-21

38 Storm Control 38-1

Finding Feature Information 38-1

Contents 38-1

Prerequisites 38-2
Restrictions 38-2

Feature Overview 38-2

Configuring Storm Control 38-2

Verifying Storm Control 38-4

xxx

Configuring Error Disable Recovery 38-5

Monitoring Error Disable Recovery 38-6

Configuration Example for Storm Control 38-7

Troubleshooting Tips 38-7

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Additional References 38-8

Related Documents 38-8
Standards 38-8
MIBs 38-8
RFCs 38-8
Technical Assistance 38-8

Feature Information for Storm Control 38-9

Contents

CHAPTER

39 Remote Loop-Free Alternate - Fast Reroute 39-1

Finding Feature Information 39-1

Contents 39-1

Prerequisites 39-2
Restrictions 39-2

Feature Overview 39-3

Benefits of Remote LFA-FRR 39-4

Avoiding Traffic Drops 39-4
Pseudowire Redundancy over FRR 39-4

Conditions for Switchover 39-5

How to Configure Remote Loop-Free Alternate - Fast Reroute 39-5

Configuring Remote LFA-FRR for IS-IS 39-6
Configuring Remote LFA-FRR for OSPF 39-9
Configuring Remote LFA-FRR for Ethernet and TDM Pseudowires 39-11

Configuring Remote LFA-FRR on a Global Interface 39-12

Configuring Remote LFA-FRR on a GigabitEthernet Interface 39-13

Configuring Remote LFA-FRR on an SVI Interface 39-14

Configuring Remote LFA-FRR on IS-IS 39-15

Configuring LFA-FRR for EoMPLS 39-19

Configuring LFA-FRR for ATM/IMA 39-21

Configuring LFA-FRR for CESoPSN 39-23

Configuring LFA-FRR for SAToP 39-25
Verification Examples for Remote LFA-FRR 39-27

Verifying Remote LFA-FRR Configuration 39-28

Verifying Remote LFA-FRR Configuration for EoMPLS on a GigabitEthernet Interface 39-30

Verifying Remote LFA-FRR Configuration for EoMPLS on an EVC Interface 39-32

Verifying Remote LFA-FRR Configuration on IS-IS 39-33

Verifying Remote LFA-FRR Configuration on ATM/IMA 39-33

Verifying Remote LFA-FRR Configuration on CESoPSN 39-34

Verifying Remote LFA-FRR Configuration on SAToP 39-35

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Configuration Examples for Remote LFA-FRR 39-35

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Contents

Example: Configuring Remote LFA-FRR for IS-IS 39-36
Example: Configuring Remote LFA-FRR for OSPF 39-36
Example: Configuring Remote LFA-FRR Globally 39-36
Example: Configuring Remote LFA-FRR on a GigabitEthernet Interface 39-37
Example: Configuring Remote LFA-FRR on an SVI Interface 39-37
Example: Configuring EoMPLS Pseudowire Redundancy over FRR 39-37
Example: Configuring LFA-FRR on ATM/IMA 39-37
Example: Configuring LFA-FRR on CESoPSN 39-38
Example: Configuring LFA-FRR on SAToP 39-38

Additional References 39-39

Related Documents 39-39
Standards 39-39
MIBs 39-39
RFCs 39-39
Technical Assistance 39-39

CHAPTER

Feature Information for Remote Loop-Free Alternate - Fast Reroute 39-40

40 Digital Optical Monitoring 40-1

Finding Feature Information 40-1

Contents 40-1

Feature Overview 40-1

How to Enable Transceiver Monitoring 40-2

Restrictions 40-2

Examples 40-3

Example: Displaying Transceiver Information 40-3
Example: Displaying Detailed Transceiver Information 40-4
Example: Displaying List of Supported Transceivers 40-5
Example: Displaying Threshold Tables 40-6
Example: Displaying Threshold Violations 40-9
Example: Displaying Threshold Violations on a Specific Interface 40-9
Example: When Transceiver Monitoring is Disabled 40-9
Example: Displaying SPF Details 40-10

Additional References 40-12

Related Documents 40-12
Standards 40-12
MIBs 40-12
RFCs 40-12
Technical Assistance 40-12

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Feature Information for Digital Optical Monitoring 40-13

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Contents

CHAPTER

41 IPv4 Multicast 41-1

Finding Feature Information 41-1

Contents 41-1

Prerequisites 41-2
Restrictions 41-2

Feature Overview 41-2

Supported Protocols 41-3
PIM SSM for IPv4 41-3

Source Specific Multicast 41-3

Protocol Independent Multicast 41-3
IGMP 41-4

IGMPv1 41-4

IGMPv2 41-4

IGMPv3 41-4
PIM SSM Mapping 41-5

Static SSM Mapping 41-5
Reverse Path Forwarding 41-5

Configuring IPv4 Multicast 41-6

Enabling IPv4 Multicast Routing 41-6
Configuring PIM SSM 41-7
Configuring PIM SSM Mapping 41-8
Verifying IPv4 Multicast Routing 41-9
Verifying PIM SSM 41-9
Verifying PIM SSM Mapping 41-10

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Configuration Examples for IPv4 Multicast 41-11

Example: IPv4 Multicast Routing 41-12
Example: Configuring PIM SSM 41-12
Example: Configuring PIM SSM Mapping 41-12
Example: Configuring Rendezvous Point 41-13

Troubleshooting Tips 41-13

Additional References 41-14

Related Documents 41-14
Standards 41-14
MIBs 41-14
RFCs 41-14
Technical Assistance 41-15

Feature Information for IPv4 Multicast 41-16

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Contents

CHAPTER

42 IPv6 Multicast 42-1

Finding Feature Information 42-1

Contents 42-1

Prerequisites 42-2
Restrictions 42-2

Feature Overview 42-2

IPv6 Multicast Groups 42-3
IPv6 Multicast Routing Implementation 42-3
Multicast Listener Discovery Protocol for IPv6 42-3
Protocol Independent Multicast 42-4

PIM Source Specific Multicast 42-5
Source Specific Multicast Mapping for IPv6 42-5
PIM-Sparse Mode 42-5
Rendezvous Point 42-6

Configuring IPv6 Multicast 42-6

Enabling IPv6 Multicast Routing 42-6
Disabling IPv6 Multicast Forwarding 42-7
Disabling MLD Device-Side Processing 42-8
Configuring MLD Protocol on an Interface 42-9
Configuring a Rendezvous Point 42-10
Configuring PIM SSM Options 42-11
Disabling PIM SSM Multicast on an Interface 42-12
Configuring IPv6 SSM Mapping 42-12
Verifying IPv6 Multicast 42-13

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Configuration Examples for IPv6 Multicast 42-21

Example: Enabling IPv6 Multicast Routing 42-21
Example: Configuring IPv6 SSM Mapping 42-21
Example: Configuring Rendezvous Point 42-21

Troubleshooting Tips 42-21

Additional References 42-23

Related Documents 42-23
Standards 42-23
MIBs 42-23
RFCs 42-23
Technical Assistance 42-23

Feature Information for IPv6 Multicast 42-24

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

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Contents

CHAPTER

43 Configuring Switched Port Analyzer 43-1

Finding Feature Information 43-1

Contents 43-1

SPAN Limitations and Configuration Guidelines 43-1

Understanding SPAN 43-2

Overview 43-2
SPAN Session 43-3
Source Interface 43-3
Destination Interface 43-4
Traffic Types 43-4
SPAN Traffic 43-4

Configuring SPAN 43-4

Creating a SPAN Session 43-4

SUMMARY STEPS 43-4

DETAILED STEPS 43-5
Removing Sources or Destination from a SPAN Session 43-5

SUMMARY STEPS 43-6

DETAILED STEPS 43-6
Configuration Examples for SPAN 43-6
Verifying Local SPAN 43-6

Additional References 43-8

Related Documents 43-8
Standards 43-8
MIBs 43-8
RFCs 43-8
Technical Assistance 43-8

Feature Information for Switched Port Analyzer 43-9

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xxxv

Contents

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About This Guide

This section describes the objectives, audience, organization, and conventions of this software
configuration guide. It contains the following sections:

• Document Revision History, page xxxvii

• Objectives, page xlvii

• Audience, page xlvii

• Organization, page xlvii

• Conventions, page l

• Related Documentation, page li

• Obtaining Documentation, Obtaining Support, and Security Guidelines, page li

Document Revision History

The Document Revision History table records technical changes to this document.

Document
Number Date Change Summary

OL-23826-01 November 2011 Initial version of the document.

OL-23826-02 January 2012 Following are the updates specific to this release:

• Cisco ASR 901 supports port based licensing. This type of

license is applicable to gigabit ethernet ports only. Ports 4 to
7 are enabled by default. For Copper and SFP ports, you need
to purchase separate licenses to enable them. For more
details see, Chapter 2, “Licensing”.

OL-23826-09

• SL-A901-B license supports VRF-Lite. For more details see,

Chapter 2, “Licensing”.

• The minimum time interval supported for BFD is 50 ms. For

more details, see Chapter 19, “Configuring Bidirectional

Forwarding Detection”.

• Cisco ASR 901 supports MLPPP configuration. For more

details, see Chapter 25, “Configuring MLPPP”.

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

-xxxvii

Document
Number Date Change Summary

OL-23826-03 May 2012 • Structure-Agnostic TDM over Packet (SAToP) is a

structure-agnostic protocol for transporting TDM using
pseudowires (PW). PW connections using SAToP are
supported.

• SAToP pseudowire with UDP encapsulation is supported.

• CESoPSN pseudowire with UDP encapsulation is supported.

• QoS for CESoPSN over UDP and SAToP over UDP—IP

DSCP and IP Precedence via service-policy, and Type of
Service (ToS) settings are supported in pseudowire class.

• L2VPN Pseudowire Redundancy feature:

–

provides backup service for circuit emulation (CEM)
pseudowires.

–

enables the network to detect failure, and reroute the
Layer 2 (L2) service to another endpoint that can
continue to provide the service.

Chapter

–

provides the ability to recover from a failure: either the
failure of the remote PE router, or of the link between
the PE and the CE routers.

• T1 Local Switching—This feature allows switching of Layer

2 data between two CEM interfaces on the same router.

• IEEE 1588-2008 (PTPv2) Ordinary Clock (OC) Master

Clock mode is supported.

• G.781 QL-enabled mode is supported for synchronization

clock selection to avoid timing loops in the network.

• ESMC—This feature dynamically distributes clock-quality

across synchronous ethernet links and enables selection of
the best clock in the network.

• Onboard Failure Logging (OBFL)—OBFL provides a

mechanism to store hardware, software, and environment
related critical data in a non-volatile memory, such as flash
EPROM or EEPROM on routers. Stored OBFL data can be
retrieved in the event of a crash or failure.

• MAC Flap control—A MAC flap occurs when a switch

receives packets from two different interfaces, with the same
source MAC address. When a MAC flap occurs, Cisco ASR
901 does Err-Disabling in one of the ports that has flapping.

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Chapter

Document
Number Date Change Summary

• CFM over EFP Interface with cross connect— This feature

allows you to:

–

Forward continuity check messages (CCM) towards the
core over cross connect pseudowires.

–

Receive CFM messages from the core.

–

Forward CFM messages to the access side (after
Continuity Check Database [CCDB] based on
maintenance point [MP] filtering rules).

• IPSLA Path Discovery—The LSP path discovery (LPD)

feature allows the IP SLA MPLS LSP to automatically
discover all the active paths to the forwarding equivalence
class (FEC), and configure LSP ping and traceroute
operations across various paths between the provide edge
(PE) devices.

• Routed QinQ—Pop 2 configuration is supported.

• Port Based EoMPLS—Port mode allows a frame coming

into an interface to be packed into an MPLS packet and
transported over the MPLS backbone to an egress interface.
The entire ethernet frame without the preamble or FCS is
transported as a single packet.

• Rommon and MCU upgrade—Upgradable MCU and

ROMMON is bundled with the IOS image. Once the IOS
image is upgraded, both the MCU and the ROMMON images
also get upgraded.

• T1.403 remote loopback—Cisco ASR 901 accepts the

remote loopback (line and payload) initiated at the far end.

• Layer3 VPN over REP/MST is supported.

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Document
Number Date Change Summary

OL-23826-04 August 2012 Following are the updates specific to this release:

• DHCP client on SVI—This feature allows you to configure

DHCP client on SVI interface.

• HSRP/VRRP—This feature allows you to configure the Hot

Standby Router Protocol (HSRP) or Virtual Router
Redundancy Protocol (VRRP) protocol.

• TWAMP Responder—This feature allows you to deploy

TWAMP in a simplified network architecture, with the
control-client and the session-sender on one device and the
server and the session-reflector on another device.

• Dying Gasp—This feature allows you to send notifications

during power failure, link down, router reload and link
administratively down conditions.

• Multihop BFD—This feature allows you to do subsecond

forwarding failure detection for a destination with more than
one hop and up to 255 hops.

• Ethernet Loopback—This feature allows you to use per-port

and per VLAN Ethernet loopback to test connectivity at
initial startup, to test throughput, and to test quality of
service in both directions.

Chapter

• LLDP—This feature allows the network devices to advertise

information about themselves to other devices in the
network.

• Bit Error Rate Testing—This feature allows you to test the

integrity of the physical layer. For more details, see Bit Error
Rate Testing.

• IPv6 Support—This feature supports Long Term Evolution

(LTE) rollouts that provides high-bandwidth data connection
for mobile wireless devices. The Cisco ASR 901 router
supports IPv6 addressing on Switch Virtual Interface (SVI),
Loopback, and Ethernet interfaces. For more details, see
IPv6 Support on the Cisco ASR 901 Router.

• Labeled BGP Support—This feature describes how to add

label mapping information to the Border Gateway Protocol
(BGP) message that is used to distribute the route on the
Cisco ASR 901 Series Aggregation Services Routers. For
more details, see Labeled BGP Support.

• MPLS Traffic Engineering—This feature describes the Fast

Reroute (FRR) link protection and Bidirectional Forwarding
Detection (BFD)-triggered FRR feature of Multiprotocol
Label Switching (MPLS) traffic engineering (TE). The
MPLS TE is supported on the Cisco ASR 901 router to
enable only the FRR. The traffic engineering aspects of
MPLS TE is currently not supported. For more details, see
MPLS Traffic Engineering - Fast Reroute Link Protection.

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Chapter

Document
Number Date Change Summary

OL-23826-05 October 2012 Following are the updates specific to this release:

• IMA—This feature allows you to configure Inverse

Multiplexing over ATM (IMA).

• TDM Local Switching—This feature allows you to

configure Time Division Multiplexing (TDM) local
switching on the T1 or E1 mode.

• Licensing—This feature allows you to view the list of

licenses available for the Cisco ASR 901 router. The
10gigUpgrade and Gige4portflexi licenses are available
from Cisco IOS Release 15.2(2)SNH1 onwards.

• EVC—The restrictions section of the Ethernet Virtual

Connections feature is updated.

• L2PT—This feature allows tunneling of Ethernet protocol

frames across layer 2 switching domains.

• ACL-based QoS—The Access Control List (ACL) based Qos

feature provides classification based on source and
destination. The current implementation of this feature
supports only named ACLs.

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Document
Number Date Change Summary

OL-23826-06 February 2013 Following are the updates specific to this release:

• IPv6 over MPLS—Enables the service providers running an

MPLS/IPv4 infrastructure to offer IPv6 services without any
major changes in the infrastructure, see IPv6 over MPLS: 6PE

and 6VPE, page 1 for more information.

• Remote Loop-Free Alternate—provides local protection for

unicast traffic in pure IP and MPLS networks, see Remote

Loop-Free Alternate - Fast Reroute, page 1 for more

information.

• MPLS over MLPPP —Allows you to use labeled switch paths

(LSPs) over MLPPP links, see C onfigurin g MLPPP, page 1 for
more information.

• Zero T ouch P rovisio ning—Enables the ASR 901 rou ter to auto

configure itself, download an updated image, connect to the
network, and start the operation as soon as it is cabled and
powered up, see Managing and Monitoring Network

Management Features, page 1 for more information.

Chapter

• Digital Optical Monitoring—Support for Digital Optical

Monitoring (DOM) for Gig Optics on ASR 901, see Digital

Optical Monitoring, page 1 for more information.

• BC Licensing—Supports for Precision Time Protocol (PTP)

Boundary Clock (BC) is introduced on the ASR 901 routers.

ADVANCED TIMING(1588BC) license should be installed to
use the BC feature, see Licensing, page 1 for more information.

• 1588V2 Boundary Clock—Supports for Precision Time

Protocol (PTP) Boundary Clock (BC) is introduced on the
ASR 901 routers, see Configuring Clocking, page 1 for more

information.

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Chapter

Document
Number Date Change Summary

OL-23826-07 March 2013 • Configuring Y.1564 to Generate Ethernet Traffic—Y.1564 is

an Ethernet service activation or performance test
methodology for turning up, installing, and troubleshooting
Ethernet-based services. This test methodology allows for
complete validation of Ethernet service-level agreements
(SLAs) in a single test. Using traffic generator performance
profile, you can create the traffic based on your
requirements. The network performance like throughput,
loss, and availability are analyzed using Layer 2 traffic with
various bandwidth profiles.

• Ethernet Synthetic Loss Measurement in Y.1731—Allows to

measure the Frame Loss Ratio (FLR) in the network, that is,
the ratio of frames lost to frames sent, using synthetic
frames.

• EVC Default Encapsulation for QinQ and

Xconnect—Supports EVC default encapsulation on the
Cisco ASR 901 router. This feature matches and forwards all
the ingress traffic on the port. The default service instance on
a port is configured using the encapsulation default
command.

• Hot Standby Pseudowire Support for ATM and TDM Access

Circuits—Improves the availability of pseudowires by
detecting failures and handling them with minimal
disruption to the service. This feature allows the backup
pseudowire to be in a “hot standby” state, so that it can
immediately take over if the primary pseudowire fails.

• Microwave ACM Signaling and EEM Integration—Enables

the microwave radio transceivers to report link bandwidth
information to an upstream Ethernet switch and take action
on the signal degradation to provide optimal bandwidth.

• Multi-UNI CFM MEPs in the Same VPN—Services are

configured such that two or more bridge domains (BDs) are
used to achieve UNI isolation and backhauling towards
provider edge (PE) device. Local MEPs (with up direction)
need to be configured on the UNIs (with the associated BDs)
to monitor the service backhaul connection.

• OSPFv3 MIBs—The OSPFV3-MIB is supported from Cisco

IOS Release 15.3(2)S onwards. This MIB module is for
OSPF version 3.

• Remote Loop-Free Alternate - Fast Reroute for

EoMPLS—The Remote Loop-Free Alternate - Fast Reroute
for EoMPLS feature is introduced.

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Document
Number Date Change Summary

• TCAM in Cisco ASR 901 Router—Effective with Cisco IOS

Release 15.3(2)S, the Ternary Content Addressable Memory
(TCAM) is allocated and deallocated dynamically, which
improves both feature scalability and the efficiency of usage
of TCAM.

• Traffic Engineering - Fast Reroute for EoMPLS—The

Traffic Engineering - Fast Reroute for EoMPLS feature is
introduced.

• Y.1731 Performance Monitoring—Provides standards-based

Ethernet performance monitoring as outlined in the ITU-T
Y-1731 specification and interpreted by the Metro Ethernet
Forum (MEF).

• Combo Port Media Type Select—Starting with Cisco IOS

Release 15.3(2)S, the Cisco ASR 901 router supports
selection of combo ports as the media type. A combo port is
considered as a single interface with dual front ends (an
RJ-45 connector and an SFP module connector).

Chapter

• Configurable MTU on Physical Interface—Starting with

Cisco IOS Release 15.3(2)S, the Cisco ASR 901 router
supports modification of MTU size on physical interface.

• Disabling MAC Address Learning on an Interface or Bridge

Domain—Starting with Cisco IOS Release 15.3(2)S, you
can control MAC address learning on an interface or VLAN
to manage the available MAC address table space by
controlling which interfaces or VLANs can learn MAC
addresses.

• Layer 3 Ping in Customer EVC—Starting with Cisco IOS

Release 15.3(2)S, pop 2 configuration is supported on layer
2 and layer 3 operations. Additionally, it is supported on
GigabitEthernet and port channel interfaces.

• Sub-second Link OAM Timers—Starting with Cisco IOS

Release 15.3(2)S, the Cisco ASR 901 router supports
sub-second OAM timers.

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Chapter

Document
Number Date Change Summary

OL-23826-08 July 2013 • Autonomic Networking—Autonomic networking is

supported from Cisco IOS Release 15.3(2)S onwards. It
makes devices more intelligent and simplifies the interface
between the operator and Network Management System
(NMS) system, by providing a strong abstraction across the
network, distributed on each device. It also automatically
provides all relevant best practices, and keeps them up to
date, without the need for human intervention.

• Storm Control—The Storm Control feature prevents traffic

on a LAN from being disrupted by a broadcast, multicast, or
unknown unicast storm on one of a port.

• Egress Policing—Egress policing can be classified based on

QoS-groups, DSCP, and precedence value. For QoS-groups
to work at egress, you should map the traffic at ingress to a
specific QoS-group value.

• MPLS Traffic Engineering (TE)—Fast Reroute (FRR) Link

Protection—Support for CESoPSN, SAToP, and ATM/IMA
was added from Cisco IOS Release 15.3(3)S onwards.

• Multiaction Ingress Policer on EVC—Effective with Cisco

IOS Release 15.3(3)S, the Cisco ASR 901 supports policing
ingress traffic over the cross connect EVC, similar to bridge
domain service policy.

• Y.1731 Performance Monitoring—Effective with Cisco IOS

Release 15.3(3)S, the Cisco ASR 901 router supports ITU-T
Y.1731 performance monitoring on the following interfaces:

–

SLM support on the EVC cross connect

–

SLM support on the Port-Channel EVC cross connect

–

DMM and SLM support on the EVC BD for both the up
and down MEPs

–

SLM support on the EVC cross connect for both the up
and down MEPs

• RFC 3107 Labeled BGP Support for TDM Pseudowire—The

RFC 3105 labeled BGP is supported for TDM pseudowire
from Cisco IOS Release 15.3(3)S onwards.

• Support for Digital Optical Monitoring (DOM) for 10 Gig

Optics—Effective with Cisco IOS Release 15.3(3)S, Cisco
ASR 901 supports DOM for both 1G and 10G SFPs.

OL-23826-09

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Chapter

Document
Number Date Change Summary

OL-23826-09 November 2013 • 1588v2 Hybrid Clock—To improve the clock quality, you

can either improve the oscillator class or reduce the number
of hops between the master and the slave. In PTP hybrid
mode, the oscillator class is improved by using a physical
layer clock (sourced from a stratum-1 clock) instead of the
available internal oscillator. The PTP hybrid mode is
supported for ordinary clock (in slave mode only) and
boundary clock.

• Dual REP Edge No-Neighbor—Effective with Cisco IOS

release 15.4.(1)S, you can configure the non-REP switch
facing ports on a single device as dual edge no-neighbor
ports. These ports inherit all properties of edge ports, and
overcome the limitation of not converging quickly during a
failure.

• EoMPLS/TDM Pseudowire Redundancy over

FRR—Effective with Cisco IOS Release 15.4(1)S, support
was added for EoMPLS/TDM pseudowire redundancy over
FRR.

• Ethernet loopback (NOSTG CLI and terminal loopback

)—Effective with Cisco IOS Release 15.4(1)S, the Cisco
ASR 901 supports internal loopback on Bridge-domain
EFPs.

• IPv4 Multicast—Describes how to configure IP multicast in

an IPv4 network. IP multicast is an efficient way to use
network resources, especially for bandwidth-intensive
services such as audio and video.

• IPv6 Multicast—Describes how to configure basic IP

multicast in an IPv6 network.

• Extending QoS over MLPPP Interface—Effective with

Cisco IOS Release 15.4(1)S, the QoS functionality on the
MLPPP interface is extended to support:

–

QoS for MPLS over MLPPP

–

QoS for CPU generated traffic

• Redundant PTP instances as per G.8265.1—PTP redundancy

is an implementation on different clock nodes by which the
PTP slave clock node interacts with multiple master ports
such as grand master, boundary clock nodes, and so on. A
new servo mode is defined under PTP to support high PDV
scenarios (when the PDVs exceed G.8261 standard profiles).

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Chapter

Document
Number Date Change Summary

• REP over LAG—Effective with Cisco IOS Release 15.4(1)S,

the Cisco ASR 901 supports REP over port-channel.

• Switched Port Analyzer (SPAN)—Effective with Cisco IOS

Release 15.4(1)S, the Cisco ASR 901 supports Local SPAN.
Local SPAN supports a SPAN session entirely within one
switch. You can analyze network traffic passing through
ports or VLANs by using SPAN to send a copy of the traffic
to another port on the switch that has been connected to a
network analyzer or other monitoring or security devices.
SPAN copies (or mirrors) traffic received or sent (or both) on
source ports to a destination port for analysis.

• Y.1564 over EVC CrossConnect—Effective with Cisco IOS

release 15.4.(01)S, traffic can be generated over cross
connect interface. Figure 10-3 shows the Traffic Generator
topology over cross connect describing the traffic flow in the
external and internal modes.

Objectives

This guide explains how to configure software features on the Cisco ASR 901-TDM version and
Cisco ASR 901-Ethernet version routers. Unless otherwise stated, the features described in this guide
apply to both the routers.

Audience

This guide is for the person responsible for configuring the router. This guide is intended for the
following audiences:

Organization

The major sections of this software configuration guide are listed in the following table:

• Customers with technical networking background and experience.

• System administrators who are familiar with the fundamentals of router-based internetworking, but

who may not be familiar with Cisco IOS software.

• System administrators who are responsible for installing and configuring internetworking

equipment, and who are familiar with Cisco IOS software.

OL-23826-09

Chapter Description

Chapter 1, “Cisco ASR 901
Router Overview”

Chapter 2, “Licensing” Describes the licensing aspects of the router.

Provides an overview of the Cisco ASR 901 router.

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

-xlvii

Chapter Description

Chapter 3, “First-Time
Configuration”

Describes the first time configuration of the router.

Chapter

Chapter 4, “Managing and
Monitoring Network
Management Features”

Chapter 5, “Using the
Command-Line Interface”

Chapter 6, “Software
Upgrade”

Chapter 7, “Configuring
Gigabit Ethernet Interfaces”

Chapter 8, “Configuring
Ethernet Virtual Connections”

Chapter 9, “Configuring
EtherChannels”

Chapter 10, “Configuring
Ethernet OAM”

Chapter 11, “ITU-T Y.1731
Performance Monitoring”

Chapter 12, “Configuring
Resilient Ethernet Protocol”

Describes how to monitor, manage and deploy a variety of network
management features.

Describes the CLI of the router.

Describes how to upgrade the Cisco IOS image on the router.

Describes how to configure gigabit ethernet interfaces on the router.

Describes how to configure EVCs on the router.

Describes how to configure EtherChannels on the router.

Describes how to configure ethernet OAM on the router.

Displays information on the ITU-T Y.1731 Performance Monitoring
for the Cisco ASR 901 Series Aggregation Services Router.

Describes how to configure REP on the router.

Chapter 13, “Configuring MST
on EVC Bridge Domain”

Chapter 14, “Configuring
Multiprotocol Label
Switching”

Chapter 15, “Configuring
EoMPLS”

Chapter 16, “Configuring
MPLS VPNs”

Chapter 17, “Configuring
MPLS OAM”

Chapter 18, “Configuring
Routing Protocols”

Chapter 19, “Configuring
Bidirectional Forwarding
Detection”

Chapter 20, “Configuring
T1/E1 Controllers”

Describes how to configure MSTP on the router.

Describes how to configure MPLS on the router.

Describes how to configure EoMPLS on the router.

Describes how to configure MPLS VPNs on the router.

Describes how to configure MPLS OAM on the router.

Describes how to configure the routing protocols on the router.

Describes how to configure BFD on the router.

Describes how to configure T1/E1 controllers on the router.

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Chapter

Chapter Description

Chapter 21, “Configuring
Pseudowire”

Chapter 22, “Configuring
Clocking”

Describes how to configure pseudowire on the router.

Describes how to configure clocking on the router.

Chapter 23, “Cisco IOS IP
SLA”

Chapter 24, “Configuring
QoS”

Chapter 25, “Configuring
MLPPP”

Chapter 26, “Onboard Failure
Logging”

Chapter 27, “Hot Standby
Router Protocol and Virtual
Router Redundancy Protocol”

Chapter 28, “Configuring Link
Layer Discovery Protocol”

Chapter 29, “Configuring
Multihop Bidirectional
Forwarding Detection”

Chapter 30, “Bit Error Rate
Testing”

Chapter 31, “Microwave ACM
Signaling and EEM
Integration”

Chapter 32, “IPv6 Support on
the Cisco ASR 901 Router”

Chapter 33, “Labeled BGP
Support”

Chapter 34, “MPLS Traffic
Engineering - Fast Reroute
Link Protection”

Chapter 35, “Layer 2 Control
Protocol Peering, Forwarding,
and Tunneling”

Chapter 36, “Configuring
Inverse Muliplexing over
AT M”

Describes the IPSLA aspects of the router.

Describes how to configure QoS on the router.

Describes how to configure MLPPP on the router.

Describes how to configure OBFL on the router.

Describes how to configure HSRP and VSRP.

Describes how to configure LLDP.

Describes how to configure multihop BFD

Describes how to configure Bit Error Rate testing.

Describes how the Microwave Adaptive Code Modulation (ACM)
Signaling and Embedded Event Manager (EEM) integration that
enables the microwave radio transceivers to report link bandwidth
information to an upstream Ethernet switch and take action on the
signal degradation to provide optimal bandwidth.

Describes how to support Long Term Evolution (LTE) rollouts that
provides high-bandwidth data connection for mobile wireless
devices.

Describes how to add label mapping information to the Border
Gateway Protocol

Describes how to add Fast Reroute (FRR) link protection and
Bidirectional Forwarding Detection (BFD)-triggered FRR feature of
Multiprotocol Label Switching (MPLS) traffic engineering (TE).

Describes how to configure Layer 2 (L2) Control Protocol Peering,
Forwarding, and Tunneling feature on the Cisco ASR 901 Series
Aggregation Services Routers.

Describes how to configure Inverse Multiplexing over ATM (IMA)
technology that is used to transport ATM traffic over a bundle of T1
or E1 cables, known as IMA group in the Cisco ASR 901 Series
Aggregation Services Routers.

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Chapter

Chapter Description

Chapter 37, “IPv6 over MPLS:
6PE and 6VPE”

Chapter 38, “Storm Control” Describes how to monitor the incoming broadcast, multicast, and

Chapter 39, “Remote
Loop-Free Alternate - Fast
Reroute”

Chapter 40, “Digital Optical
Monitoring”

Chapter 41, “Autonomic
Networking Infrastructure”

Chapter 41, “IPv4 Multicast” Describes how to configure IP multicast in an IPv4 network.

Chapter 42, “IPv6 Multicast” Describes how to configure basic IP multicast in an IPv6 network.

Chapter 43, “Configuring
Switched Port Analyzer”

Describes how to implement IPv6 VPN Provider Edge Transport over
MPLS (IPv6 on Provider Edge Routers [6PE] and IPv6 on ASR 901.

unknown unicast packets and prevent them from flooding the LAN
ports.

Describes the Remote Loop-free Alternate (LFA) - Fast Reroute
(FRR) feature that uses a backup route, computed using dynamic
routing protocol during a node failure, to avoid traffic loss.

Provides information on the digital optical monitoring (DOM) feature
for the Cisco ASR 901 Series Aggregation Services Router.

Describes how the Autonomic Networking Infrastructure feature
makes new and unconfigured devices securely reachable by an
operator or network management system.

Describes how to configure a switched port analyzer (SPAN) on the
Cisco ASR 901 Router.

Conventions

This publication uses the following conventions to convey instructions and information.

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the

manual.

Convention Description

boldface font Commands and keywords.

italic font Variables for which you supply values.

[ ] Keywords or arguments that appear within square brackets are optional.

{x | y | z} A choice of required keywords appears in braces separated by vertical bars. You must

select one.

screen font

boldface

font

screen

Examples of information displayed on the screen.

Examples of information the user enters.

< > Nonprinting characters, for example passwords, appear in angle brackets.

[ ] Default responses to system prompts appear in square brackets.

Timesaver Means the described action saves time.

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

-l

OL-23826-09

Chapter

Tip Means the following information will help you solve a problem. The tips information might not be

troubleshooting or even an action, but could be useful information, similar to a Timesaver.

Caution Means reader be careful. In this situation, you might do something that could result in equipment

damage or loss of data.

Related Documentation

The following list includes documentation related to your product by implementation.

• Cisco ASR 901 Series Aggregation Services Router Documents

–

Cisco ASR 901 Series Aggregation Services Router Command Reference

–

Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide

–

Cisco Regulatory Compliance and Safety Information for Cisco ASR 901 Series Aggregation
Services Router

• Release Notes

–

Release Notes for Cisco ASR 901 Series Aggregation Services Router

To access the related documentation on Cisco.com, go to:

http://www.cisco.com/en/US/partner/products/ps12077/tsd_products_support_series_home.html

Note To obtain the latest information, access the online documentation.

Obtaining Documentation, Obtaining Support, and Security
Guidelines

For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

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Cisco ASR 901 Router Overview

Cisco ASR 901 Mobile Wireless Router is a cell-site access platform specifically designed to aggregate
and transport mixed-generation radio access network (RAN) traffic. The router is used at the cell site
edge as a part of a 2G, 3G, or 4G radio access network (RAN). The Cisco ASR 901 is availabe in the
following models:

• Cisco ASR 901-TDM version (A901-12C-FT-D, A901-4C-FT-D, A901-6CZ-FT-D,

A901-6CZ-FT-A)

• Cisco ASR 901-Ethernet version (A901-12C-F-D, A901-4C-F-D, A901-6CZ-F-D, A901-6CZ-F-A)

The Cisco ASR 901 router helps enable a variety of RAN solutions by extending IP connectivity to
devices using Global System for Mobile Communications (GSM), General Packet Radio Service
(GPRS), Node Bs using HSPA or LTE, Base Transceiver Stations (BTSs) using Enhanced Data Rates for
GSM Evolution (EDGE), Code Division Multiple Access (CDMA), CDMA-2000, EVDO, or WiMAX,
and other cell-site equipment.

The Cisco ASR 901 router transparently and efficiently transports cell-site voice, data, and signaling
traffic over IP using traditional T1/E1 circuits, including leased line, microwave, and satellite. It also
supports alternative backhaul networks, including Carrier Ethernet and Ethernet in the First Mile (EFM).

The Cisco ASR 901 router also supports standards-based Internet Engineering Task Force (IETF)
Internet protocols over the RAN transport network, including those standardized at the Third-Generation
Partnership Project (3GPP) for IP RAN transport.

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Custom designed for the cell site, the Cisco ASR 901 features a small form factor, extended operating
temperature, and cell-site DC input voltages.

The Cisco ASR 901 TDM version provides 12 Gigabit Ethernet ports, 16 T1/E1 ports and one
Management port. Whereas, the Cisco ASR 901 Ethernet version does not contain the 16 T1/E1 ports.
It has only 12 Gigabit Ethernet ports and one management port.

The Cisco ASR 901 router supports Ethernet Virtual Circuits (EVC) only. Metro-Ethernet Forum (MEF)
defines an Ethernet Virtual Connection as an association between two or more user network interfaces
identifying a point-to-point or multipoint-to-multipoint path within the service provider network. An
EVC is a conceptual service pipe within the service provider network.

For more information on EVCs, see Configuring Ethernet Virtual Connections, page 8-1.

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

1-1

Introduction

Introduction

Chapter 1 Cisco ASR 901 Router Overview

A RAN is typically composed of thousands of BTSs or Node Bs, hundreds of base station controllers or
radio network controllers (BSCs or RNCs), and several mobile switching centers (MSCs). The BTS or
Node Bs and BSC or RNC are often separated by large geographic distances, with the BTSs or Node Bs
located in cell sites uniformly distributed throughout a region, and the BSCs, RNCs, and MSCs located
at suitably chosen Central Offices (CO) or mobile telephone switching offices (MTSO).

The traffic generated by a BTS or Node B is transported to the corresponding BSC or RNC across a
network, referred to as the backhaul network, which is often a hub-and-spoke topology with hundreds
of BTS or Node Bs connected to a BSC or RNC by point-to-point time division multiplexing (TDM)
trunks. These TDM trunks may be leased-line T1/E1s or their logical equivalents, such as microwave
links or satellite channels.

The Cisco ASR 901 has two different types of interfaces by default: network node interfaces (NNIs) to
connect to the service provider network and user network interfaces (UNIs) to connect to customer
networks. Some features are supported only on one of these port types. You can also configure enhanced
network interfaces (ENIs). An ENI is typically a user-network facing interface and has the same default
configuration and functionality as UNIs, but can be configured to support protocol control packets for
Cisco Discovery Protocol (CDP), Spanning-Tree Protocol (STP), EtherChannel Link Aggregation
Control Protocol (LACP).

Features

This section contains the following topics:

• Performance Features, page 1-2

• Management Options, page 1-3

• Manageability Features, page 1-3

• Security Features, page 1-4

• Quality of Service and Class of Service Features, page 1-4

• Layer 3 Features, page 1-5

• Layer 3 VPN Services, page 1-5

• Monitoring Features, page 1-5

Performance Features

• Autosensing of port speed and autonegotiation of duplex mode on all ports for optimizing

bandwidth.

• Automatic-medium-dependent interface crossover (auto-MDIX) capability on 100 and 100/1000

Mbps interfaces and on 100/1000 BASE-T/TX small form-factor pluggable (SFP) module interfaces
that enables the interface to automatically detect the required cable connection type
(straight-through or crossover) and to configure the connection appropriately.

1-2

• EtherChannel for enhanced fault tolerance and for providing up to 8 Gbps (Gigabit EtherChannel)

or 800 Mbps (Fast EtherChannel) full duplex of bandwidth between switches, routers, and servers.

• Link Aggregation Control Protocol (LACP) for automatic creation of EtherChannel links (supported

only on NNIs or ENIs).

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Chapter 1 Cisco ASR 901 Router Overview

• Forwarding of Layer 2 and Layer 3 packets at Gigabit line rate.

Management Options

• CLI—You can access the CLI either by connecting your management station directly to the router

console port or by using Telnet from a remote management station. For more information about the
CLI, see Chapter 5, “Using the Command-Line Interface.”

• Cisco Configuration Engine—The Cisco Configuration Engine is a network management device that

works with embedded Cisco IOS CNS Agents in the Cisco ASR 901 Series Aggregation Services
Router software. You can automate initial configurations and configuration updates by generating
router-specific configuration changes, sending them to the router, executing the configuration
change, and logging the results.

• SNMP—SNMP management applications such as CiscoWorks2000 LAN Management Suite (LMS)

and HP OpenView. You can manage from an SNMP-compatible management station that is running
platforms such as HP OpenView or SunNet Manager.

For information about configuring SNMP, see

http://www.cisco.com/en/US/docs/ios/12_2/configfun/configuration/guide/fcf014.html.

For the list of MIBs that Cisco ASR 901 router supports, see the Release Notes for Cisco ASR 901
router.

Features

Manageability Features

• Address Resolution Protocol (ARP) for identifying a router through its IP address and its

corresponding MAC address

• Cisco Discovery Protocol (CDP) Versions 1 and 2 for network topology discovery and mapping

between the router and other Cisco devices on the network (supported on NNIs by default, can be
enabled on ENIs, not supported on UNIs)

• Network Time Protocol (NTP) for providing a consistent time stamp to all routers from an external

source

• Cisco IOS File System (IFS) for providing a single interface to all file systems that the Cisco ASR

901 Series Aggregation Services Router uses.

• In-band management access for up to 5 simultaneous Telnet connections for multiple CLI-based

sessions over the network. Effective with Cisco IOS Release 15.3(2)S1, in-band management access
for up to 98 simultaneous Telnet connections for multiple CLI-based sessions over the network.

• In-band management access for up to five simultaneous, encrypted Secure Shell (SSH) connections

for multiple CLI-based sessions over the network.

• In-band management access through SNMP Versions 1 and 2c get and set requests.

• Out-of-band management access through the router console port to a directly attached terminal or

to a remote terminal through a serial connection or a modem

• User-defined command macros for creating custom router configurations for simplified deployment

across multiple routers

• Support for metro Ethernet operation, administration, and maintenance (OAM) IEEE 802.1ag

Connectivity Fault Management (CFM), Ethernet Line Management Interface (E-LMI) on
customer-edge and provider-edge devices, and IEEE 802.3ah Ethernet OAM discovery, link

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1-3

Features

• Configuration replacement and rollback to replace the running configuration on a router with any

• CPU utilization threshold logs.

Security Features

• Password-protected access (read-only and read-write access) to management interfaces for

• Configuration file security so that only authenticated and authorized users have access to the

• Multilevel security for a choice of security level, notification, and resulting actions

• Automatic control-plane protection to protect the CPU from accidental or malicious overload due to

Chapter 1 Cisco ASR 901 Router Overview

monitoring, remote fault detection, and remote loopback, and IEEE 802.3ah Ethernet OAM
discovery, link monitoring, remote fault detection, and remote loopback (requires the metro IP
access or metro access image)

saved Cisco IOS configuration file

protection against unauthorized configuration changes

configuration file, preventing users from accessing the configuration file by using the password
recovery process

Layer 2 control traffic on UNIs or ENIs

• TACACS+, a proprietary feature for managing network security through a TACACS server

• RADIUS for verifying the identity of, granting access to, and tracking the actions of remote users

through authentication, authorization, and accounting (AAA) services

• Extended IP access control lists for defining security policies in the inbound direction on physical

ports.

• Extended IP access control lists for defining security policies in the inbound and outbound direction

on SVIs.

Quality of Service and Class of Service Features

• Configurable control-plane queue assignment to assign control plane traffic for CPU-generated

traffic to a specific egress queue.

• Cisco modular quality of service (QoS) command-line (MQC) implementation

• Classification based on IP precedence, Differentiated Services Code Point (DSCP), and IEEE

802.1p class of service (CoS) packet fields, or assigning a QoS label for output classification

• Policing

–

One-rate policing based on average rate and burst rate for a policer

–

Two-color policing that allows different actions for packets that conform to or exceed the rate

–

Aggregate policing for policers shared by multiple traffic classes

• Table maps for mapping CoS, and IP precedence values

1-4

• Queuing and Scheduling

–

Class-based traffic shaping to specify a maximum permitted average rate for a traffic class

–

Port shaping to specify the maximum permitted average rate for a port

–

Class-based weighted queuing (CBWFQ) to control bandwidth to a traffic class

–

Low-latency priority queuing to allow preferential treatment to certain traffic

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Chapter 1 Cisco ASR 901 Router Overview

• Per-port, per-VLAN QoS to control traffic carried on a user-specified VLAN for a given interface.

Layer 3 Features

• IP routing protocols for load balancing and for constructing scalable, routed backbones:

–

–

–

–

• IP routing between VLANs (inter-VLAN routing) for full Layer 3 routing between two or more

VLANs, allowing each VLAN to maintain its own autonomous data-link domain

• Static IP routing for manually building a routing table of network path information

• Equal-cost routing for load balancing and redundancy

• Internet Control Message Protocol (ICMP) and ICMP Router Discovery Protocol (IRDP) for using

router advertisement and router solicitation messages to discover the addresses of routers on directly
attached subnets

Features

OSPF

BGP Version 4

IS-IS dynamic routing

BFD protocol Bidirectional Forwarding Detection (BFD) Protocol to detect forwarding-path
failures for OSPF, IS-IS, and BGP routing protocols

Layer 3 VPN Services

These features are available only when the Cisco ASR 901router is running the Advance Metro IP
services.

• Multiple VPN routing/forwarding (multi-VRF) instances in customer edge devices (multi-VRF CE)

to allow service providers to support multiple virtual private networks (VPNs) and overlap IP
addresses between VPNs

• MPLS VPN is supported.

Monitoring Features

• Router LEDs that provide port- and router-level status

• Syslog facility for logging system messages about authentication or authorization errors, resource

issues, and time-out events

• Enhanced object tracking for HSRP clients (requires metro IP access image)

• IP Service Level Agreements (IP SLAs) support to measure network performance by using active

traffic monitoring (requires metro IP access or metro access image)

• IP SLAs EOT to use the output from IP SLAs tracking operations triggered by an action such as

latency, jitter, or packet loss for a standby router failover takeover (requires metro IP access or metro
access image)

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• EOT and IP SLAs EOT static route support to identify when a preconfigured static route or a DHCP

route goes down (requires metro IP access or metro access image)

• Embedded event manager (EEM) for device and system management to monitor key system events

and then act on them though a policy (requires metro IP access or metro access image)

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1-5

Features

Chapter 1 Cisco ASR 901 Router Overview

1-6

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

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Licensing

This feature module describes the licensing aspects of the Cisco ASR 901 Series Aggregation Services
Router.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release. To find information
about the features documented in this module, and to see a list of the releases in which each feature is
supported, see the “Feature Information for Licensing” section on page 2-17.

Use Cisco Feature Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on
Cisco.com is not required.

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2

Contents

• Feature Overview, page 2-2

• Licenses Supported on Cisco ASR 901 Router, page 2-2

• License Types, page 2-4

• Port or Interface Behavior, page 2-5

• Generating the License, page 2-11

• Installing the License, page 2-11

• Changing the License, page 2-12

• Return Materials Authorization License Process, page 2-13

• Verifying the License, page 2-14

• Where to Go Next, page 2-14

• Additional References, page 2-15

• Feature Information for Licensing, page 2-17

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Feature Overview

Feature Overview

The Cisco ASR 901 router license is similar to any other software license in Cisco. It is tied to the
Unique Device Identifier (UDI) —where the license is integrated to the PID (Product Identifier) and SN
(Serial Number). A license generated for one router cannot be shared or installed in any other router.

Complete these steps to obtain the license file:

1. Purchase the required Product Authorization Key (PAK).

2. Get the UDI from the device.

3. Enter the UDI and PAK in the Cisco’s licensing portal.

You will receive a license file through email.

4. Install the licenses on the device. For more information on how to install the license, see Installing

the License, page 2-11.

In addition to using the router CLI, you can install the license using the Cisco License Manager (CLM)
or the Callhome interface.

Chapter 2 Licensing

Licenses Supported on Cisco ASR 901 Router

The following licenses are supported:

License

Sl.No. Chassis PID License PID

1 A901-12C-FT-D

A901-12C-F-D

A901-4C-FT-D

A901-4C-F-D

A901-6CZ-FT-A

A901-6CZ-FT-D

A901-6CZ-F-A

A901-6CZ-F-D

2 A901-12C-F-D

A901-12C-FT-D

A901-4C-FT-D

A901-4C-F-D

A901-6CZ-FT-A

SL-A901-A AdvancedMetroIP

SL-A901-B IPBase Image (by default gets enabled)

Description License Type (Image or Feature)

Access

Image

2-2

A901-6CZ-FT-D

A901-6CZ-F-A

A901-6CZ-F-D

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Chapter 2 Licensing

Sl.No. Chassis PID License PID

3 A901-4C-FT-D

A901-4C-F-D

FLS-A901-4S

FLS-A901-4S=

L-FLS-A901-4S=

4 A901-4C-FT-D

A901-4C-F-D

FLS-A901-4T

FLS-A901-4T=

L-FLS-A901-4T=

5 A901-6CZ-FT-A

A901-6CZ-FT-D

A901-6CZ-F-A

FLS-A901-2Z

FLS-A901-2Z=

L-FLS-A901-2Z=

A901-6CZ-F-D

6 A901-6CZ-FT-A

A901-6CZ-FT-D

A901-6CZ-F-A

FLS-A901-4

FLS-A901-4=

L-FLS-A901-4=

Licenses Supported on Cisco ASR 901 Router

License
Description License Type (Image or Feature)

Gige4SfpUpgrade Feature

1

1

Gige4CuUpgrade Feature

1

1

10gigUpgrade Feature

1

1

Gige4portflexi Feature

1

1

A901-6CZ-F-D

7 A901-12C-FT-D

SL-A901-T 1588BC Feature

A901-12C-F-D

A901-4C-FT-D

A901-4C-F-D

A901-6CZ-FT-A

A901-6CZ-FT-D

A901-6CZ-F-A

A901-6CZ-F-D

1 = variants are spares or represent the e-paper form.

The Cisco ASR 901 software uses the license description to resolve errors related to license availability.
You need to map the proper license PID as per the table above and purchase the licenses. The
Cisco ASR 901 router supports permanent licenses only.

You should install only a supported license for the proper chassis PID. You will get a “Not Supported”
message while trying to install a wrong license. However, license installation process will go through
and a confirmation message is displayed. When you run the show license command to display the details
of this license, the output shows license state as “NOT IN USE”, and you cannot make it “IN USE”.

The following is a sample confirmation message that is displayed on the router when you try to install a
wrong license.

Install FLS-A901-4S license on A901-6CZ-F-A (10g) boards,
10G-Router#license install flash:CAT1625U0EP_201307231358341640.lic
Installing licenses from "flash:CAT1625U0EP_201307231358341640.lic"
Installing...Feature:Gige4SfpUpgrade...Successful:Not Supported
1/1 licenses were successfully installed
0/1 licenses were existing licenses
0/1 licenses were failed to install

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2-3

License Types

License Types

Cisco ASR 901 router supports the following types of licenses:

• Image Level License

• Feature Based License

Image Level License

An Image level license corresponds to the level of the IOS image that comes up based on the licenses
present on the router. This license is enforced while booting and it uses a universal image. It activates
all the subsystems corresponding to the license that you purchased. Image based licenses (SL-A901-A
and SL-A901-B) need rebooting of the router.

Features Supported

In Cisco ASR 901, IPBase (SL-A901-B) and AdvancedMetroIPAccess (SL-A901-A) are permanent;
once installed they do not expire. Trial or temporary licenses are not supported on the Cisco ASR 901
router.

Chapter 2 Licensing

License Features

IPBase / SL-A901-B

AdvancedMetroIPAccess / SL-A901-A

Feature Based License

• L2, EVC, 802.1Q, 802.1ad, QinQ, 802.3ah,

H-Qos, IPv4 static routes, routing protocols,
host connectivity, ACL, REP, VRF-Lite

• E-OAM—CFM (BD, port level), IPSLA

(barring LSP)

• Clocking—SyncE, 1588-OC Slave, 10M,

1PPS/ToD, G.781 Priority based Clock
Selection (no ESMC/SSM)

Note Time-division multiplexing (TDM) is

unavailable.

• All IPBase license features

• MPLS—MPLS, L2VPN (EoMPLS), L3VPN,

MPLS OAM, PW redundancy

• E-OAM—IPSLA(LSP)

• TDM —IPoPPP/HDLC, QoS,

CESoPSNoMPLS, PPP/HDLCoMPLS, Clock
Recovery from TDM interfaces, Y.1731PM

2-4

Feature based licenses are licenses used to activate individual features once the image level licenses are
used. Once the image level license is used and the appropriate subsystems are activated. Individual
feature licenses are used to activate individual features. These include:

• Port based license

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Chapter 2 Licensing

• Port mode license

• 1588BC license

Note Copper (FLS-A901-4T), SFP (SL-A901-B), and 1588BC (SL-A901-T) licenses are feature-based

licenses. Once they are installed, the licenses become active and there is no need to reboot the router.

Port Based/Mode License

The following table lists the port number, type, and the required license for those ports:

Port Number Port Type Chassis PID License Required

0-3 Copper A901-4C-FT-D

4-7 Combo No license is required. These ports

8-11 Small

0-3 and 8-11 Copper and

Form-Factor
Pluggable(SFP)

Combo

A901-4C-F-D

A901-4C-FT-D

A901-4C-F-D

A901-6CZ-FT-A

A901-6CZ-FT-D

Port or Interface Behavior

FLS-A901-4T

are enabled by default.

FLS-A901-4S

FLS-A901-4

TenGig0/1,
TenGig0/2

By default, ports 4 to 7 are enabled on the router. When you purchase the copper or SFP port license, the
corresponding ports are only enabled. Copper and SFP port licenses can co-exist.

SFP+ A901-6CZ-FT-A

1588BC License

1588BC (SL-A901-T) license is a feature based license. This license does not need rebooting of the
router for activation. The following table lists the features supported

License Features

1588BC / SL-A901-T Clocking—1588V2 PTP boundary clock

Port or Interface Behavior

A901-6CZ-F-A

A901-6CZ-F-D

FLS-A901-2Z

A901-6CZ-FT-D

A901-6CZ-F-A

A901-6CZ-F-D

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The following sections describe the port or interface behavior of the licenses:

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

2-5

Port or Interface Behavior

• Port Based License, page 2-6

• 10gigUpgrade License, page 2-7

• Flexi License, page 2-8

• 1588BC License, page 2-9

Port Based License

When a port based license is not present, ports 4 to 7 are enabled. Ports 0 to 3, and ports 8 to 11 are
disabled. This is the expected behavior. Interfaces that are disabled are in the administrative down state.

Example: When Port Based License is not Installed

The following error message appears when the port based license is not installed and you use the
no shutdown command on the interface:

Router# show ip interface brief
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0 unassigned YES unset administratively down down
GigabitEthernet0/1 unassigned YES unset administratively down down
GigabitEthernet0/2 unassigned YES unset administratively down down
GigabitEthernet0/3 unassigned YES unset administratively down down
GigabitEthernet0/4 unassigned YES unset down down
GigabitEthernet0/5 unassigned YES unset down down
GigabitEthernet0/6 unassigned YES unset down down
GigabitEthernet0/7 unassigned YES unset down down
GigabitEthernet0/8 unassigned YES unset administratively down down
GigabitEthernet0/9 unassigned YES unset administratively down down
GigabitEthernet0/10 unassigned YES unset administratively down down
GigabitEthernet0/11 unassigned YES unset administratively down down
FastEthernet0/0 unassigned YES NVRAM administratively down down
Vlan1 unassigned YES unset down down
Router#

Chapter 2 Licensing

Router(config-if)# interface gig 0/0
Router(config-if)# no shutdown
Router(config-if)#
*Oct 5 14:22:27.743: %LICENSE-1-REQUEST_FAILED: License request for feature fls-a901-4t

1.0 failed. UDI=MWR-3941:FHAK13101A1

Router# show interface gigabitEthernet 0/0
GigabitEthernet0/0 is administratively down, line protocol is down (disabled)
…….
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1000Mbps, link type is force-up, media type is RJ45
output flow-control is unsupported, input flow-control is unsupported
LICENSE not available! Interface disabled
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never

Example: When Port Based License is Installed

The following example shows how to install the port based license:

Router# license install flash:FHAK13101A1_20110811190230024_fls-a901-4t.lic

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Chapter 2 Licensing

Note Combo ports are either copper or SFP ports depending on the configuration specified in the media-type

Port or Interface Behavior

Installing licenses from "flash:FHAK13101A1_20110811190230024_fls-a901-4t.lic"
Installing...Feature:Fls-a901-4t...Successful:Supported
1/1 licenses were successfully installed
0/1 licenses were existing licenses
0/1 licenses were failed to install
Router#*Oct 5 17:23:14.487: %LICENSE-6-INSTALL: Feature Fls-a901-4t 1.0 was installed in
this device. UDI=MWR-3941-TEST:FHAK13101A1; StoreIndex=2:Primary License Storage

Router(config)# interface gig 0/0
Router(config-if)# no shutdown

When the port based license is installed for copper or SFP ports, the corresponding ports are enabled.
Following is a sample output from the show ip interface command:

Router# show ip interface brief
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0 unassigned YES unset up up
GigabitEthernet0/1 unassigned YES unset administratively down down
GigabitEthernet0/2 unassigned YES unset administratively down down
…..

command.

10gigUpgrade License

When you do not have the 10gigUpgrade license, the 10 Gigabit Ethernet ports are enabled in 1 Gigabit
Ethernet mode. Install the 10gigUpgrade license to enable new 10 Gigabit Ethernet ports in 10Gigabit
Ethernet mode. To enable 1 Gigabit Ethernet mode, 1 Gigabit Ethernet SFPs have to be used on both the
ends. There is no speed command to control the speed and this depends on the type of the SFP. The 10
Gigabit Ethernet ports does not support 100M speed. You can connect 10 Gigabit Ethernet SFP+ to 10
Gigabit Ethernet ports only.

Example: When 10gigUpgrade License is not Installed

The following error message appears when the 10gigUpgrade license is not installed and you use the
show interface command:

Router# show interface Ten0/1

TenGigabitEthernet0/1 is down, line protocol is down (notconnect)
Hardware is TenGigabit Ethernet, address is 2c54.2dd6.c10e (bia 2c54.2dd6.c10e)
MTU 9216 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Unknown, Unknown, media type is H10GB-CU3M
output flow-control is unsupported, input flow-control is unsupported
LICENSE not available or 1G SFP ( Interface in 1G mode )
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer

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Port or Interface Behavior

Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

Example: When 10gigUpgrade License is Installed

The following example shows how to install the 10gigUpgrade license:

Router# license install flash:10G-ac.lic
Installing licenses from "flash:10G-ac.lic"
Installing...Feature:10gigUpgrade...Successful:Supported

1/1 licenses were successfully installed
0/1 licenses were existing licenses
0/1 licenses were failed to install

Chapter 2 Licensing

Flexi License

Following is a sample output from the show license command:

Router# show license
Index 1 Feature: AdvancedMetroIPAccess
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Count: Non-Counted
License Priority: Medium
Index 2 Feature: IPBase
Index 3 Feature: Gige4portflexi
Index 4 Feature: 10gigUpgrade
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Count: Non-Counted
License Priority: Medium

When a flexi license is not present, ports 4 to 7 are enabled. Ports 0 to 3, and ports 8 to 11 are disabled.
This is the expected behavior. Interfaces that are disabled are in the administrative down state.

FLS-A901-4 flexi license is a combination of copper and SFP ports. This license is not tied to any port
types. If you purchase a single FL-A901-4 license and install it, four ports are enabled and if you have
two licenses, all the eight ports are enabled. You can purchase and install two flexi licenses in a router.

Note Flexi license is supported only on the Cisco ASR 901 10G router.

Example: When Flexi License is not Installed

The following error message appears when the flexi license is not installed and you use the
show ip interface command on the interface:

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2-8

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Chapter 2 Licensing

Router# show ip interface brief
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0 unassigned YES unset administratively down down
GigabitEthernet0/1 unassigned YES unset administratively down down
GigabitEthernet0/2 unassigned YES unset administratively down down
GigabitEthernet0/3 unassigned YES unset administratively down down
GigabitEthernet0/4 unassigned YES unset down down
GigabitEthernet0/5 unassigned YES unset down down
GigabitEthernet0/6 unassigned YES unset down down
GigabitEthernet0/7 unassigned YES unset down down
GigabitEthernet0/8 unassigned YES unset administratively down down
GigabitEthernet0/9 unassigned YES unset administratively down down
GigabitEthernet0/10 unassigned YES unset administratively down down
GigabitEthernet0/11 unassigned YES unset administratively down down
FastEthernet0/0 unassigned YES NVRAM administratively down down
Vlan1 unassigned YES unset down down

Example: When Flexi License is Installed

Following is a sample output from the show license command:

Router# show license
Index 1 Feature: AdvancedMetroIPAccess
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Count: Non-Counted
License Priority: Medium
Index 2 Feature: IPBase
Index 3 Feature: Gige4portflexi

Port or Interface Behavior

1588BC License

When the SL-A901-T 1588BC license is not installed, the PTP boundary clock cannot be configured.
For more information on configuring the PTP boundary clock, see PTP Boundary Clock.

Example: When 1588BC License is not Installed

The following error message appears on configuring the PTP boundary clock, when the 1588BC license
is not installed:

Note Though an error message appears on configuring the PTP boundary clock, the running-config file

accepts the PTP boundary clock configuration. This configuration can be saved. However, the PTP
boundary clock is not configured in the hardware, and is inactive.

Router(config)# ptp clock boundary domain 0
%ERROR: Boundary Clock needs a separate license. Please install license and reconfigure
PTP.
Router(config-ptp-clk)#

Example: When 1588BC License is Installed

The following example shows how to install the 1588BC license:

Router# license install flash:CAT1632U029_20121005013805577.lic

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Port or Interface Behavior

Note When the 1588BC license is installed and PTP boundary clock is not configured, the license state is

Installing licenses from "flash:CAT1632U029_20121005013805577.lic"
Installing…Feature:1588BC…Successful:Supported

1/1 licenses were successfully installed
0/1 licenses were existing licenses
0/1 licenses were failed to install

Following is a sample output from the show license command:

displayed as
configured, the license state is displayed as Active, In Use.

Router# show license
Index 1 Feature: AdvancedMetroIPAccess
Index 2 Feature: IPBase
Index 3 Feature: Gige4portflexi
Index 4 Feature: 10gigUpgrade
Index 5 Feature: 1588BC
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Count: Non-Counted
License Priority: Medium

Active, Not in Use. When the 1588BC license is installed and PTP boundary clock is

Chapter 2 Licensing

Removing the 1588BC License

If PTP boundary clock is configured, then the following error message appears when removing the
1588BC license:

Router# license clear 1588BC
Feature: 1588BC
License Type: Permanent
License State: Active, In Use
License Addition: Exclusive
License Count: Non-Counted
Comment:
Store Index: 2
Store Name: Primary License Storage

Are you sure you want to clear? (yes/[no]): yes

Handling Event, Unknown event type: 3
% Error: Could not delete in-use license

Complete the following steps to remove the 1588BC license.

Step 1 Use the no ptp clock command to remove the PTP boundary clock configuration.

Router(config-ptp-clk)# no ptp clock boundary domain 0

Step 2 Use the license clear command to remove the 1588BC license.

Router# license clear 1588BC

Feature: 1588BC

License Type: Permanent

License State: Active, Not in Use

License Addition: Exclusive

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Chapter 2 Licensing

License Count: Non-Counted

Comment:

Store Index: 3

Store Name: Primary License Storage

Are you sure you want to clear? (yes/[no]): yes

Generating the License

Complete the following steps to generate the license:

Step 1 Use the show license udi command on the router

Step 2 Save the output.

The output contains the UDI with the Product Identifier (PID) and Serial Number (SN).

Step 3 Go to the SWIFT tool at https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet.

Generating the License

Step 4 Enter the PAK and UDI.

Step 5 Click Submit.

You will receive the license file through email.

Installing the License

Complete the following steps to install the license:

SUMMARY STEPS

1. enable

2. license install

3. copy tftp: flash:

4. show flash:

5. license install license-file-name

6. reload

7. end

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Changing the License

DETAILED STEPS

Command Purpose

Step 1

enable

Example:

Router> enable

Step 2

license install ?

Example:

Router# license install ?

Step 3

copy tftp: flash:

Example:

Router# copy tftp: flash:

Step 4

show flash:

Chapter 2 Licensing

Enables privileged EXEC mode.

• Enter your password if prompted.

(Optional) License can be installed either by placing
the license file in the tftp boot directory or by copying
the license to the flash: directory.

Copies the license file to the flash: directory.

Displays the contents of the flash: directory.

Example:

Router# show flash:

Step 5

license install

license-file-name

Example:

Router# license install
FHK10LLL021_20110530015634482.lic

Step 6

reload

Example:

Router# reload

Changing the License

Use the license boot level command in the global configuration mode, to change the license. Reboot the
system to activate the new license.

Note If you do not install a license, the router starts with the lowest level license by default.

Installs the license from the flash: directory.

Reboots the system to activate the new license.

Note The 1588BC license is activated after

installation. Rebooting the router is not
necessary.

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Chapter 2 Licensing

Return Materials Authorization License Process

Return Materials Authorization License Process

A Return Materials Authorization (RMA) license transfer enables moving all the licenses from the failed
device to the replacement device. Complete the following steps to transfer the license to an RMA
equipment:

Step 1 Go to the license portal https://tools.cisco.com/SWIFT/Licensing/LicenseAdminServlet/getProducts

Step 2 Enter the old (failed box) UDI and the new (replacement box) UDI.

The portal sends the new license file for transferring to the new device.

For more information, see the RMA License Transfer Between a Failed and a Working Device section
in the Cisco IOS Software Activation Conceptual Overview Guide.

Alternatively, you can use the Cisco License Manager (CLM) for the RMA license transfer. For more
information, see http://www.cisco.com/en/US/products/ps7138/products_user_guide_list.html.

Example: RMA Process

Router# license install ?

flash: Install from flash: file system
tftp: Install from tftp: file system

Router# copy tftp: flash:

Address or name of remote host []? 10.105.33.135
Source filename []? /tftpboot/arulpri/FHK10LLL021_20110530015634482.lic
Destination filename [FHK10LLL021_20110530015634482.lic]?
Accessing tftp://10.105.33.135//tftpboot/arulpri/FHK10LLL021_20110530015634482.lic...
Erase flash: before copying? [confirm]
Erasing the flash filesystem will remove all files! Continue? [confirm]
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee...
Erased
Erase of flash: complete
Loading /tftpboot/arulpri/FHK10LLL021_20110530015634482.lic from 10.105.33.135 (via
FastEthernet0/0): !
[OK - 1237 bytes]

Verifying checksum... OK (0x7403)
1237 bytes copied in 0.132 secs (9371 bytes/sec)

Router# license install flash:FHK10LLL021_20110530015634482.lic

Installing licenses from "flash:FHK10LLL021_20110530015634482.lic"

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Extension licenses are being installed in the device with
UDI "ASR901:FHK10LLL021" for the following features:

Feature Name: AdvancedMetroIPAccess

PLEASE READ THE FOLLOWING TERMS CAREFULLY. INSTALLING THE LICENSE OR
LICENSE KEY PROVIDED FOR ANY CISCO PRODUCT FEATURE OR USING SUCH
PRODUCT FEATURE CONSTITUTES YOUR FULL ACCEPTANCE OF THE FOLLOWING
TERMS. YOU MUST NOT PROCEED FURTHER IF YOU ARE NOT WILLING TO BE BOUND
BY ALL THE TERMS SET FORTH HEREIN.

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Verifying the License

Chapter 2 Licensing

You hereby acknowledge and agree that the product feature license
is terminable and that the product feature enabled by such license
may be shut down or terminated by Cisco after expiration of the
applicable term of the license (e.g., 30-day trial period). Cisco
reserves the right to terminate or shut down any such product feature
electronically or by any other means available. While alerts or such
messages may be provided, it is your sole responsibility to monitor
your terminable usage of any product feature enabled by the license
and to ensure that your systems and networks are prepared for the shut
down of the product feature. You acknowledge and agree that Cisco will
not have any liability whatsoever for any damages, including, but not
limited to, direct, indirect, special, or consequential damages related
to any product feature being shutdown or terminated. By clicking the
"accept" button or typing "yes" you are indicating you have read and
agree to be bound by all the terms provided herein.

ACCEPT? (yes/[no]):

Installing...Feature:AdvancedMetroIPAccess...Successful:Supported
1/1 licenses were successfully installed
0/1 licenses were existing licenses
0/1 licenses were success to install

Verifying the License

To verify the new license, use the show license command.

Router# show license

Index 1 Feature: AdvancedMetroIPAccess

Period left: Lifetime
License Type: Permanent
License State: Active, In Use
License Priority: High
License Count: 1/1/0 (Active/In-use/Violation)

Index 2 Feature:…..

Period left: 0 minute 0 second

yes

Where to Go Next

For additional information on Licensing, see the documentation listed in the “Related Documents”

section on page 2-15.

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Chapter 2 Licensing

Additional References

Additional References

Related Documents

Related Topic Document Title

Cisco IOS commands Cisco IOS Master Commands List, All Releases

ASR 901 Command Reference Cisco ASR 901 Series Aggregation Services Router Command

Reference

Cisco IOS Interface and Hardware Component
Commands

Cisco Software Licensing Concepts Cisco IOS Software Activation Conceptual Overview

Cisco ASR 901Software Configuration Guide Cisco ASR 901 Series Aggregation Services Router Software

Cisco IOS Interface and Hardware Component Command Reference

Configuration Guide

Standards

Standard Title

None —

MIBs

MIB MIBs Link

None To locate and download MIBs for selected platforms, Cisco software

releases, and feature sets, use Cisco MIB Locator found at the
following URL:

http://www.cisco.com/go/mibs

RFCs

RFC Title

No new or modified RFCs are supported by this
feature, and support for existing RFCs has not been
modified by this feature.

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2-15

Additional References

Technical Assistance

Description Link

The Cisco Support and Documentation website
provides online resources to download documentation,
software, and tools. Use these resources to install and
configure the software and to troubleshoot and resolve
technical issues with Cisco products and technologies.
Access to most tools on the Cisco Support and
Documentation website requires a Cisco.com user ID
and password.

http://www.cisco.com/cisco/web/support/index.html

Chapter 2 Licensing

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Chapter 2 Licensing

Feature Information for Licensing

Feature Information for Licensing

Table 2 - 1 lists the release history for this feature and provides links to specific configuration

information.

Use Cisco Feature Navigator to find information about platform support and software image support.
Cisco Feature Navigator enables you to determine which software images support a specific software
release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn.
An account on Cisco.com is not required.

Note Table 2 - 1 lists only the software release that introduced support for a given feature in a given software

release train. Unless noted otherwise, subsequent releases of that software release train also support that
feature.

Table 2-1 Feature Information for Licensing

Feature Name Releases Feature Information

Licensing 15.2(2)SNH1 The following sections provide information about this

feature:

• Licenses Supported on Cisco ASR 901 Router

• License Types

• Port or Interface Behavior

• Generating the License

• Installing the License

• Changing the License

• Return Materials Authorization License Process

1588BC Licensing 15.2(2)SNI The following sections provide information about this

feature:

• Licenses Supported on Cisco ASR 901 Router

• License Types

• Port or Interface Behavior

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2-17

Feature Information for Licensing

Chapter 2 Licensing

2-18

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Contents

Note To understand the router interface numbering, see the Cisco ASR 901 Series Aggregation Services

CHA PTER

3

First-Time Configuration

This chapter describes the actions to take before turning on your router for the first time.

• Setup Mode, page 3-1

• Verifying the Cisco IOS Software Version, page 3-5

• Configuring the Hostname and Password, page 3-5

Router Hardware Installation Guide.

Setup Mode

The setup mode guides you through creating a basic router configuration. If you prefer to configure the
router manually or to configure a module or interface that is not included in setup mode, go to Using the

Command-Line Interface, page 5-1 to familiarize yourself with the command-line interface (CLI).

Before Starting Your Router

Complete the following steps before you power on your router and begin using the setup mode:

Step 1 Set up the hardware and connect the console and network cables as described in the “Connecting Cables”

section of the Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide.

Step 2 Configure your PC terminal emulation program for 9600 baud, 8 data bits, no parity, and 1 stop bit.

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3-1

Setup Mode

Using Setup Mode

The setup command facility appears in your PC terminal emulation program window. To create a basic
configuration for your router, perform the following:

• Complete the steps in the “Configuring Global Parameters” section on page 3-2

• Complete the steps in the “Completing the Configuration” section on page 3-4

Note If you made a mistake while using the setup command facility, exit the facility and run it again.

Press Ctrl-C, and type setup at the enable mode prompt (1900#).

Configuring Global Parameters

Complete the following steps to configure global parameters.

Step 1 Power on the router. Messages appear in the terminal emulation program window.

Chapter 3 First-Time Configuration

Caution Do not press any keys on the keyboard until the messages stop. Any keys that you press during this time

are interpreted as the first command entered after the messages stop, which might cause the router to
power off and start over. Wait a few minutes. The messages stop automatically.

The messages look similar to the following:

System Bootstrap, Version 15.1(2r)SNG, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2011 by cisco Systems, Inc.
Compiled Tue 25-Oct-11 12:09 by tinhuang
P2020 platform with 524288 Kbytes of main memory

program load complete, entry point: 0x2000000, size: 0x1d29954
Self decompressing the image :
##########################################################################################
##########################################################################################
##########################################################################################
##########################################################################################
##########################################################################################
##########################################################################################
################################### [OK]

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

3-2

cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

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Chapter 3 First-Time Configuration

Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.1(2)SNG, RELEASE
SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Tue 25-Oct-11 13:13 by prod_rel_team

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
[e-mail].

Cisco ASR901-E (P2020) processor (revision 1.0) with 393216K/131072K bytes of memory.
Processor board ID CAT1529U01P
P2020 CPU at 792MHz, E500v2 core, 512KB L2 Cache
1 FastEthernet interface
12 Gigabit Ethernet interfaces
1 terminal line
256K bytes of non-volatile configuration memory.
98304K bytes of processor board System flash (Read/Write)
65536K bytes of processor board RAM Disk (Read/Write)

Setup Mode

--- System Configuration Dialog ---

Would you like to enter the initial configuration dialog? [yes/no]:

Note The messages vary, depending on the Cisco IOS software image and interface modules in your

router. This section is for reference only, and output might not match the messages on your
console.

Step 2 To begin the initial configuration dialog, enter yes when the following message appears:

Would you like to enter the initial configuration dialog? [yes/no]:yes
Would you like to enter basic management setup? [yes/no]: yes
Configuring global parameters:

Step 3 Enter a hostname for the router (this example uses 901-1).

Configuring global parameters:

Enter host name [Router]: 901-1

Step 4 Enter an enable secret password. This password is encrypted (more secure) and cannot be seen when

viewing the configuration.

The enable secret is a password used to protect access to
privileged EXEC and configuration modes. This password, after
entered, becomes encrypted in the configuration.
Enter enable secret: ciscoenable

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Setup Mode

Chapter 3 First-Time Configuration

Note When you enter the enable secret password, the password is visible as you type it. Once you

enter the password, it becomes encrypted in the configuration.

Step 5 Enter an enable password that is different from the enable secret password. This password is not

encrypted (less secure) and can be seen when viewing the configuration.

The enable password is used when you do not specify an
enable secret password, with some older software versions, and
some boot images.
Enter enable password: ciscoenable

Step 6 To prevent unauthenticated access to the router through ports other than the console port, enter the virtual

terminal password.

The virtual terminal password is used to protect
access to the router over a network interface.
Enter virtual terminal password: ciscoterminal

Step 7 Respond to the following prompts as appropriate for your network:

Configure System Management? [yes/no]: no
Configure SNMP Network Management? [yes]:
Community string [public]: public

Step 8 The summary of interfaces appears. This list varies, depending on the network modules installed in your

router.

Step 9 Specify the interface to be used to connect to the network management system.

Step 10 Configure the specified interface as prompted.

Completing the Configuration

When you have provided all of the information prompted for by the setup command facility, the
configuration appears. Messages similar to the following appear:

The following configuration command script was created:

!
hostname 901-1
enable secret 5 $1$5fH0$Z6Pr5EgtR5iNJ2nBg3i6y1 enable password ciscoenable line vty 0 98
password ciscoenablesnmp-server community public !
no ip routing

!
interface GigabitEthernet0/1
shutdown
!
end

Complete the following steps to configure the router:

3-4

Step 1 The setup command facility displays the following prompt.

[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.

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Chapter 3 First-Time Configuration

Enter your selection [2]: 2
Building configuration...
[OK]

Use the enabled mode 'configure' command to modify this configuration.

Press RETURN to get started!

If you answer:

• 0—The configuration information that you entered is not saved, and you return to the router enable

prompt. To return to the system configuration dialog, enter setup.

• 1—The configuration is not saved, and you return to the EXEC prompt.

Step 2 When the messages stop displaying in your window, press Return to view the command line prompt.

The 901-1> prompt appears indicating that you are at the CLI and you completed a basic router
configuration.

Verifying the Cisco IOS Software Version

Note The basic configuration is not a complete configuration.

Verifying the Cisco IOS Software Version

To verify the version of Cisco IOS software, use the show version command. The show version
command displays the configuration of the system hardware, the software version, the names and
sources of the configuration files, and the boot images.

Configuring the Hostname and Password

First configure the hostname and set an encrypted password. Configuring a hostname allows you to
distinguish multiple Cisco routers from each other. Setting an encrypted password allows you to prevent
unauthorized configuration changes.

Note In the following procedure, press the Return key after each step unless otherwise noted. At any time,

you can exit the privileged level and return to the user level by entering disable at the Router# prompt.

Complete the following steps to configure a hostname and to set an encrypted password:

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Step 1 Enter enable mode.

Router> enable

The Password prompt appears. Enter your password.

Password: password

When the prompt changes to Router, you have entered enable mode.

Step 2 Enter global configuration mode.

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

3-5

Configuring the Hostname and Password

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

When the prompt changes to Router(config), you have entered global configuration mode.

Router(config)#

Step 3 Change the name of the router to a meaningful name. Substitute your hostname for Router.

Router(config)#

Router(config)#

Step 4 Enter an enable secret password. This password provides access to privileged EXEC mode. When you

type enable at the EXEC prompt (
configuration mode. Enter your secret password.

Router(config)# enable secret

Step 5 Exit back to global configuration mode.

Router(config)# exit

Chapter 3 First-Time Configuration

hostname Router

Router>), you must enter the enable secret password to access

secret password

Verifying the Hostname and Password

Complete the following steps to verify that you have correctly configured the hostname and password:

Step 1 Enter the show config command:

Router# show config
Using 1888 out of 126968 bytes
!
version XX.X
.
.
.
!
hostname Router
!
enable secret 5 $1$60L4$X2JYOwoDc0.kqa1loO/w8/
.
.
.

Step 2 Check the hostname and encrypted password, which appear near the top of the command output.

Step 3 Exit global configuration mode and attempt to re-enter it using the new enable password:

Router# exit
.
.Router con0 is now available
Press RETURN to get started.
Router> enable
Password:
Router#

password

3-6

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Managing and Monitoring Network Management Features

This feature module describes how to monitor, manage and deploy a variety of network management
features, including Cisco Active Network Abstraction (ANA), Simple Network Management Protocol
(SNMP) and Cisco Networking Services (CNS). The CNS software agent on the ASR 901 can
communicate with a Cisco Configuration Engine to allow the ASR 901 to be deployed in the field
without having to pre-stage it for configuration or image upgrade. The Zero-touch deployment capability
enables the ASR 901 router to auto configure itself, download an updated image, connect to the network,
and start the operation as soon as it is cabled and powered up.

For more information about the Cisco Configuration Engine, see

http://www.cisco.com/en/US/prod/collateral/netmgtsw/ps6504/ps4617/qa_c67_598467.html

Finding Feature Information

CHA PTER

4

Contents

Your software release may not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release. To find information
about the features documented in this module, and to see a list of the releases in which each feature is
supported, see the “Feature Information for Monitoring and Managing the ASR 901 Router” section on

page 4-18.

Use Cisco Feature Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on
Cisco.com is not required.

• Network Management Features for the ASR 901, page 4-2

• How to Configure Network Management Features on ASR 901, page 4-2

• Where to Go Next, page 4-16

• Additional References, page 4-16

• Feature Information for Monitoring and Managing the ASR 901 Router, page 4-18

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Chapter 4 Managing and Monitoring Network Management Features

Network Management Features for the ASR 901

Network Management Features for the ASR 901

The following sections describe the network management features available on the ASR 901.

• Cisco Active Network Abstraction (ANA)

• SNMP MIB Support

• Cisco Networking Services (CNS)

Cisco Active Network Abstraction (ANA)

Cisco ANA is a powerful, next-generation network resource management solution designed with a fully
distributed OSS mediation platform that abstracts the network, its topology and its capabilities from the
physical elements. Its virtual nature provides customers with a strong and reliable platform for service
activation, service assurance and network management. For more information about ANA, see

http://www.cisco.com/en/US/products/ps6776/tsd_products_support_series_home.html.

SNMP MIB Support

To view the current MIBs that the ASR 901 supports, see http://www.cisco.com/go/mibs.

Cisco Networking Services (CNS)

Cisco Networking Services (CNS) is a collection of services that can provide remote configuration of
Cisco IOS networking devices, remote execution of command-line interface (CLI) commands, and
image downloads by communicating with a Cisco Configuration Engine application running on a server.
CNS enables the zero-touch deployment for the ASR 901 router by automatically downloading its
configuration and upgrading its image if needed.

Note The ASR 901 only supports CNS over motherboard Ethernet interfaces.

For more information about CNS configuration, see Enabling Cisco Networking Services (CNS) and

Zero-Touch Deployment.

How to Configure Network Management Features on ASR 901

This section contains the following procedures:

4-2

• Configuring SNMP Support

• Configuring Remote Network Management

• Enabling Cisco Networking Services (CNS) and Zero-Touch Deployment

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Chapter 4 Managing and Monitoring Network Management Features

Configuring SNMP Support

Use the following to configure SNMP support for

• Setting up the community access

• Establishing a message queue for each trap host

• Enabling the router to send SNMP trap messages

• Enabling SNMP trap messages for alarms

• Enabling trap messages for a specific environment.

Note In the following procedure, press the Return key after each step unless otherwise noted. At any time,

you can exit the privileged level and return to the user level by entering disable at the Router# prompt.

Complete the following steps to configure SNMP:

SUMMARY STEPS

How to Configure Network Management Features on ASR 901

DETAILED STEPS

Command Purpose

Step 1

enable

Example:

Router> enable

Step 2

configure terminal

1. enable

2. configure terminal

3. snmp-server community string [view view-name] [ro | rw] [number]

4. snmp-server queue-length length

5. snmp-server enable traps [notification-type] [notification-option]

6. snmp-server enable traps ipran

7. snmp-server enable traps envmon

8. snmp-server host host-address [traps | informs] [version {1 | 2c | 3 [auth | noauth | priv]}]

community-string [udp-port port] [notification-type]

9. end

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Example:

Router# configure terminal

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How to Configure Network Management Features on ASR 901

Command Purpose

Step 3

Router(config)# snmp-server
community

[ro | rw] [

string

number

[view

]

view-name

Example:

Router(config)# snmp-server
community xxxxx RO

Step 4

Router(config)# snmp-server
queue-length

length

Example:

Router(config)# snmp-server
queue-length 100

Chapter 4 Managing and Monitoring Network Management Features

Sets up the community access string to permit access to SNMP. The no

]

form of this command removes the specified community string.

• string—Community string is the password to access the SNMP

protocol.

• view view-name—(Optional) Previously defined view. The view

defines the objects available to the community.

• ro—(Optional) Specifies read-only access. Authorized management

stations are able only to retrieve MIB objects.

• rw—(Optional) Specifies read-write access. Authorized management

stations are able to both retrieve and modify MIB objects.

• number—(Optional) Specifies an access list of IP addresses allowed

to use the community string to gain access to the SNMP agent. Values
range from 1 to 99.

Establishes the message queue length for each trap host.

• length—Specifies the number of trap events that can be held before

the queue must be emptied.

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Command Purpose

Step 5

Router(config)# snmp-server enable
traps [
[

notification-type

notification-option

]

]

Enables the router to send SNMP traps messages. Use the no form of this
command to disable SNMP notifications.

Example:

Router(config)# snmp-server enable
traps snmp linkdown linkup
coldstart warmstart

How to Configure Network Management Features on ASR 901

• notification-type—snmp [authentication]—Enables RFC 1157

SNMP notifications. Note that use of the authentication keyword
produces the same effect as not using the authentication keyword.
Both the snmp-server enable traps snmp and snmp-server enable
traps snmp authentication forms of this command globally enable
(or, if using the no form, disable) the following SNMP traps:

–

authentication failure

–

linkup

–

linkdown

–

coldstart

–

warmstart

• notification-option—(Optional) atm pvc [interval seconds]

[fail-interval seconds]—The optional interval seconds
keyword/argument combination specifies the minimum period
between successive traps, in the range from 1 to 3600. Generation of
PVC traps is dampened by the notification interval to prevent trap
storms. No traps are sent until the interval lapses. The default interval
is 30.

The optional fail-interval seconds keyword/argument combination
specifies the minimum period for storing the failed time stamp, in the
range from 0 to 3600. The default fail-interval is 0.

• envmon [voltage | shutdown | supply | fan | temperature]—When

the envmon keyword is used, you can enable a specific environmental
notification type, or accept all notification types from the
environmental monitor system. If no option is specified, all
environmental notifications are enabled. The option can be one or
more of the following keywords: voltage, shutdown, supply, fan,
and temperature.

• isdn [call-information | isdn u-interface]—When the isdn keyword

is used, you can specify the call-information keyword to enable an
SNMP ISDN call information notification for the ISDN MIB
subsystem, or you can specify the isdnu-interface keyword to enable
an SNMP ISDN U interface notification for the ISDN U interface
MIB subsystem.

• repeater [health | reset]—When the repeater keyword is used, you

can specify a repeater option. If no option is specified, all repeater
notifications are enabled. The option can be one or more of the
following keywords:

–

health—Enables IETF Repeater Hub MIB (RFC 1516) health
notification.

–

reset—Enables IETF Repeater Hub MIB (RFC 1516) reset
notification.

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How to Configure Network Management Features on ASR 901

Command Purpose

Step 6

Router(config)# snmp-server enable
traps ipran

Example:

Router(config)# snmp-server enable
traps ipran

Step 7

Router(config)# snmp-server enable
traps envmon

Example:

Router(config)# snmp-server enable
traps envmon

Step 8

Router(config)# snmp-server host

host-address

[version {1 | 2c | 3 [auth | noauth
| priv]}]
[udp-port

[traps | informs]

community-string
port

] [

notification-type

Example:

Router(config)# snmp-server host

10.20.30.40 version 2c

Chapter 4 Managing and Monitoring Network Management Features

Enables SNMP trap messages for all IP-RAN notifications.

Note Besides enabling SNMP trap messages for all IP-RAN

notifications, you can also enable the messages for IP-RAN GSM
alarms, UMTS alarms, and general information about the
backhaul utilization.

Enables SNMP trap messages for a specific environment.

Specifies the recipient of an SNMP trap messages. To remove the
specified host, use the no form of this command.

• host-address—Name or Internet address of the host (the targeted

]

recipient).

• traps—Sends SNMP trap messages to this host. This is the default.

• informs—(Optional) Sends SNMP informs to this host.

• version—(Optional) Version of the SNMP used to send the traps.

Version 3 is the most secure model because allows packet encryption
with the priv keyword. If you use the version keyword, one of the
following must be specified:

–

1—SNMP version 1. This option is not available with informs.

–

2c—SNMP version 2C.

–

3—SNMP version 3. The following three optional keywords can
follow the version 3 keyword:

–auth (Optional). Enables Message Digest 5 (MD5) and Secure
Hash Algorithm (SHA) packet authentication

–noauth (Default). The no authentication-no privileges security
level is the default if the auth | noauth | priv] keyword choice is
not specified.

–priv (Optional). Enables Data Encryption Standard (DES)
packet encryption.

• community-string—Password-like community string sent with the

notification operation. Though you can set this string using the
snmp-server host command by itself, we recommend you define this
string using the snmp-server community command before using the
snmp-server host command.

• udp-port port—UDP port of the host. The default value is 162.

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Chapter 4 Managing and Monitoring Network Management Features

Command Purpose

• notification-type—(Optional) Type of notification to be sent to the

How to Configure Network Management Features on ASR 901

host. If no type is specified, all notifications are sent. The notification
type can be one or more of the following keywords:

–

aaa_server—Enables SNMP AAA Server traps.

–

atm—Enables SNMP ATM Server traps.

–

ccme—Enables SNMP CCME traps.

–

cnpd—Enables NBAR Protocol Discovery traps.

–

config—Enables SNMP config traps.

–

config-copy—Enables SNMP config-copy traps.

–

cpu—Allow cpu related traps.

–

dial—Enables SNMP dial control traps.

–

dnis—Enables SNMP DNIS traps.

–

ds0-busyout—Enables ds0-busyout traps.

–

ds1—Enables SNMP DS1 traps.

–

ds1-loopback—Enables ds1-loopback traps.

–

ds3—Enables SNMP DS3 traps.

–

dsp—Enables SNMP dsp traps.

–

eigrp—Enables SNMP EIGRP traps.

–

entity—Enables SNMP entity traps.

–

envmon—Enables SNMP environmental monitor traps.

–

flash—Enables SNMP FLASH notifications.

–

frame-relay—Enables SNMP frame-relay traps.

–

hsrp—Enables SNMP HSRP traps.

–

icsudsu—Enables SNMP ICSUDSU traps.

–

ipmulticast—Enables SNMP ipmulticast traps.

–

ipran—Enables IP-RAN Backhaul traps.

–

ipsla—Enables SNMP IP SLA traps.

–

isdn—Enables SNMP isdn traps.

–

12tun—Enables SNMP L2 tunnel protocol traps.

–

mpls—Enables SNMP MPLS traps.

–

msdp—Enables SNMP MSDP traps.

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–

mvpn—Enables Multicast Virtual Private Networks traps.

–

ospf—Enables OSPF traps.

–

pim—Enables SNMP PIM traps.

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How to Configure Network Management Features on ASR 901

Command Purpose

Step 9

end

Chapter 4 Managing and Monitoring Network Management Features

–

pppoe—Enables SNMP pppoe traps.

–

pw—Enables SNMP PW traps.

–

rsvp—Enables RSVP flow change traps.

–

snmp—Enables SNMP traps.

–

srst—Enables SNMP srst traps.

–

syslog—Enables SNMP syslog traps.

–

tty—Enables TCP connection traps.

–

voice—Enables SNMP voice traps.

–

vrrp—Enables SNMP vrrp traps.

–

vtp—Enables SNMP VTP traps.

–

xgcp—Enables XGCP protocol traps.

Exits global configuration mode.

Example:

Router(config)# end

Configuring Remote Network Management

Complete the following steps to configure remote network management of ASR 901:

SUMMARY STEPS

1. enable

2. configure terminal

3. ip host host-name ip-address

4. interface loopback number

5. ip-address ip-address subnet-mask

6. end

7. snmp-server host hostname [traps | informs] [version {1 | 2c | 3 [auth | noauth | priv]}]

community-string [udp-port port] [notification-type]

8. snmp-server community public ro

9. snmp-server community private rw

10. snmp-server enable traps

11. snmp-server trap-source loopback number

4-8

12. end

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Chapter 4 Managing and Monitoring Network Management Features

DETAILED STEPS

Command or Action Purpose

Step 1

enable

Example:

Router> enable

Step 2

configure terminal

Example:

Router# configure terminal

Step 3

ip host

host-name ip-address

Example:

Router(config)# ip host om-work 10.0.0.1

Step 4

interface loopback

number

How to Configure Network Management Features on ASR 901

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

Assigns a host name to each of the network management
workstations, where hostname is the name assigned to the
Operations and Maintenance (O&M) workstation and
ip_address is the address of the network management
workstation.

Creates a loopback interface for O&M.

Step 5

Step 6

Step 7

Step 8

Step 9

Example:

Router(config-if)# interface loopback 5005

ip-address

ip-address subnet-mask

Example:

Router(config-if)# ip-address 10.10.12.10 23

end

Example:

Router(config-if)# end

snmp-server host
[version {1 | 2c | 3 [auth | noauth | priv]}]

community-string

[

notification-type

hostname

[udp-port

]

[traps | informs]

port

]

Example:

Router(config-if)# snmp-server host snmp1
version 3 auth

snmp-server community

public

ro

Example:

Router(config-if)# snmp-server community
snmppubliccom RO

snmp-server community

private

rw

Configures the interval at which packets are sent to refresh
the MAC cache when HSRP is running.

Exits interface configuration mode.

Specifies the recipient of a Simple Network Management
Protocol (SNMP) notification operation.

The hostname is the name assigned to the Cisco Info Center
workstation with the ip host command in Step 3.

Specifies the public SNMP community name.

Specifies the private SNMP community name.

Example:

Router(config-if)# snmp-server community
snmpprivatecom RW

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How to Configure Network Management Features on ASR 901

Command or Action Purpose

Step 10

snmp-server enable traps

Enables the transmission of SNMP traps messages.

Example:

Router(config-if)# snmp-server enable traps

Step 11

snmp-server trap-source loopback

number

Specifies the loopback interface from which SNMP traps
messages originate, where number is the number of the
loopback interface you configured for the O&M in Step 4.

Exits global configuration mode.

Step 12

Example:

Router(config-if)# snmp-server trap-source
loopback 5005

end

Example:

Router(config-if)# end

Enabling Cisco Networking Services (CNS) and Zero-Touch Deployment

To enable CNS and Zero-Touch deployment, you need the following servers:

• A DHCP server (standalone or enabled on the carrier edge router)

• A TFTP server (standalone or enabled on the carrier edge router)

• A server running the Cisco Configuration Engine (formerly known as the CNS-CE server)

Note The ASR 901 only supports CNS over motherboard Ethernet interfaces.

This section contains the following procedures:

• Zero-Touch Deployment, page 4-10

• Configuring a DHCP Server, page 4-12

• Configuring a TFTP Server, page 4-13

• Configuring the Cisco Configuration Engine, page 4-14

Zero-Touch Deployment

Zero-touch deployment feature gives the router the ability to retrieve its configuration file from the
remote server during initial router deployment with no end-user intervention.

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Chapter 4 Managing and Monitoring Network Management Features

Configuration

Engine

DHCP Server

L3 Network

DHCP Helper

Cisco ASR 901 router
with no configurations

TFTP Server

303311

Figure 4-1 Zero-touch Deployment

The following steps provide an overview of events that take place during ASR 901 zero-touch
deployment.

How to Configure Network Management Features on ASR 901

Step 1 Connect the Cisco ASR 901 without any configurations to an upstream router.

Step 2 The ASR 901 auto-senses the management vlan of the upstream router for IP connectivity by listening

Step 3 The ASR 901 sends DHCP discover messages using the discovered VLAN tag. If the upstream router is

Step 4 The DHCP server responds with a DHCP offer.

Step 5 The ASR 901 sends a DHCP request message to the DHCP server. The DHCP server then sends the

Note Step 6 and 7 are used only when Option 43 is not configured.

Step 6 The ASR 901 requests network-config file via TFTP.

Step 7 The TFTP server sends the ASR 901 a network-config file.

Step 8 The ASR 901 sends an HTTP request to the CNS-CE server.

Step 9 The CNS-CE server sends a configuration template to the ASR 901.

Step 10 Publish success event.

Image Download

to the traffic it receives on the connected interface.

not using a management VLAN, untagged DHCP discover messages are sent.

DHCP ACK message.

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The following events take place when a CNS-enabled ASR 901 downloads a new image:

Step 1 The CNS-CE server requests inventory (disk/flash info) from the ASR 901-DC.

Step 2 The ASR 901-DC sends an inventory.

Step 3 The CNS-CE server sends an image location.

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How to Configure Network Management Features on ASR 901

Step 4 The ASR 901-DC sends a TFTP image request.

Step 5 The ASR 901-DC downloads an image from the TFTP server.

Step 6 Refresh the CNS-CE server to check whether the image download is complete.

Step 7 Associate the .inv template in the CNS-CE server. Based on the boot variable, the ASR 901 reboots with

the copied image.

Step 8 The CNS-CE server reboots the ASR 901-DC router.

Configuring a DHCP Server

The Cisco ASR 901 requires a DHCP server for zero-touch deployment. Complete the following steps
to configure a Cisco router as a DHCP server.

SUMMARY STEPS

1. enable

2. configure terminal

3. ip dhcp excluded-address dhcp-server-ip-address

Chapter 4 Managing and Monitoring Network Management Features

DETAILED STEPS

Command or Action Purpose

Step 1

enable

Example:

Router> enable

Step 2

configure terminal

Example:

Router# configure terminal

Step 3

ip dhcp excluded-address

4. ip dhcp excluded-address ip-address subnet-mask

5. ip dhcp pool pool-name

6. network ip-address subnet-mask

7. default-router ip-address

8. option 43 ascii string or option 150 ascii string

9. end

Enables privileged EXEC mode.

• Enter your password if prompted.

Enters global configuration mode.

dhcp-server-ip-address

Specifies to exclude IP address of the DHCP server.

Example:

Router# ip dhcp excluded-address 30.30.1.6

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Chapter 4 Managing and Monitoring Network Management Features

Command or Action Purpose

Step 4

ip dhcp excluded-address

ip-address subnet-mask

Example:

Router# ip dhcp excluded-address 30.30.1.20

30.30.1.255

Step 5

ip dhcp pool

pool-name

Example:

Router# ip dhcp pabudhcp2

Step 6

network

ip-address subnet-mask

Example:

Router# network 160.100.100.0 255.255.255.252

Step 7

default-router

ip-address

Example:

Router# default-router 30.30.1.6

Step 8

option 43 ascii
or
option 150 ip <

string

TFTP-server-ip-address

Example:

Router# option 43 ascii 3A1D;A3;B161.100.100.2

Step 9

end

How to Configure Network Management Features on ASR 901

Assigns IP addresses with an exception of 30.30.1.6, which
is the IP address of the DHCP server.

Specifies the DHCP pool name.

Specifies the IP address and subnet mask of the network.

Specifies the IP address of the default router.

Specifies Option 43 and a string value that has the CNS

>

details, serial number of the hardware, and the code for CE
IP address or Option 150 and the IP address of the TFTP
server.

For more information on Option 43, see

http://www.cisco.com/en/US/docs/ios-xml/ios/cns/configu
ration/15-mt/cns-dhcp.html#GUID-CA88C33A-D81B-41
D3-A1F4-F276DA11C8B5. ASR 901 supports only few

letter code options mentioned in this link.

Exits configuration mode.

Example:

Router(config-if)# end

Configuring a TFTP Server

You need to set up a TFTP server to provide a bootstrap configuration to the ASR 901 routers when they
boot using option 150.

Creating a Bootstrap Configuration

Create or download a file with the initial bootstrap configuration on the TFTP server. An example of the
configuration file is shown below:

hostname test-router
!
cns trusted-server all-agents 30.30.1.20
cns event 30.30.1.20 11011 keepalive 60 3
cns config initial 30.30.1.20 80
cns config partial 30.30.1.20 80
cns id hostname

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How to Configure Network Management Features on ASR 901

cns id hostname event
cns id hostname image
!
end

Enabling a TFTP Server on the Edge Router

The Cisco ASR 901 requires a TFTP server for zero-touch deployment while using option 150. The
TFTP server is typically implemented on the carrier edge router. You can use the following global
configuration commands to enable a TFTP server on the edge router that can send the initial
configuration to the Cisco ASR 901 router.

tftp-server sup-bootflash:network-confg

Once the Cisco ASR 901 boots with this configuration, it can connect to the CNS-CE server.

Configuring the Cisco Configuration Engine

The Cisco Configuration Engine (formerly known as the Cisco CNS Configuration Engine) allows you
to remotely manage configurations and IOS software images on Cisco devices including the
Cisco ASR 901.

Chapter 4 Managing and Monitoring Network Management Features

Once the Cisco ASR 901 downloads the bootstrap configuration and connects to the Cisco Configuration
Engine server, you can use the server to download a full configuration to the router. You can also use the
CNS-CE server to complete any of the following tasks:

• Manage configuration templates—The CNS-CE server can store and manage configuration

templates.

• Download a new image—You can use the CNS-CE server to load a new IOS image on a

Cisco ASR 901 router.

• Loading a new config—You can use the CNS-CE server to load a new configuration file on a

Cisco ASR 901 router.

• Enable identification—You can use a unique CNS agent ID to verify the identity of a host device

prior to communication with the CNS-CE server.

• Enable authentication—You can configure the CNS-CE server to require a unique password from

the ASR 901 router as part of any communication handshake.

• Enable encryption—You can enable Secure Socket Layer (SSL) encryption for the HTTP sessions

between the CNS agent devices (Cisco ASR 901 routers) and the CNS-CE server.

For instructions about how to use the CNS-CE server, see the Cisco Configuration Engine Installation
& Configuration Guide at

http://www.cisco.com/en/US/products/sw/netmgtsw/ps4617/tsd_products_support_series_home.html.

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Chapter 4 Managing and Monitoring Network Management Features

Configuration Examples

This section provides the following configuration examples:

• Example: Configuring SNMP Support

• Example: Configuring Remote Network Management

• Example: Configuring a DHCP Server

• Example: Zero-touch Deployment

Example: Configuring SNMP Support

!
snmp-server community xxxxx RO
snmp-server queue-length 100
snmp-server enable traps snmp linkdown linkup coldstart warmstart
snmp-server enable traps ipran
snmp-server enable traps envmonsnmp-server host 10.20.30.40 version 2c
!

Configuration Examples

Example: Configuring Remote Network Management

cns trusted-server all-agents 30.30.1.20
cns event 30.30.1.20 11011 keepalive 60 3
cns config initial 30.30.1.20 80
cns config partial 30.30.1.20 80
cns id hostname
cns id hostname event
cns id hostname image
cns exec 80
logging buffered 20000
!
end

Example: Configuring a DHCP Server

ip dhcp excluded-address 30.30.1.6
ip dhcp excluded-address 30.30.1.20 30.30.1.255
!
ip dhcp pool asrdhcp
network 30.30.1.0 255.255.255.0
default-router 30.30.1.6
Option 43 ascii 3A1D;A3;B161.100.100.2
!
end

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Where to Go Next

Example: Zero-touch Deployment

The following configuration example sets the Cisco ASR 901 to boot using configurations stored on a
CNS–CE server with the IP address 30.30.1.20.

Note This section provides partial configurations intended to demonstrate a specific feature.

hostname 901
!
cns trusted-server all-agents 30.30.1.20
cns event 30.30.1.20 11011 keepalive 60 3
cns config initial 30.30.1.20 80
cns config partial 30.30.1.20 80
cns id hostname
cns id hostname event
cns id hostname image
!
end

Chapter 4 Managing and Monitoring Network Management Features

Where to Go Next

For additional information on monitoring and managing the ASR 901 router, see the documentation
listed in the “Related Documents” section on page 4-16.

Additional References

Related Documents

Related Topic Document Title

Cisco IOS commands Cisco IOS Master Commands List, All Releases

ASR 901 Command Reference Cisco ASR 901 Series Aggregation Services Router Command

Reference

Cisco IOS Interface and Hardware Component
Commands

Standards

Standard Title

None —

Cisco IOS Interface and Hardware Component Command Reference

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Chapter 4 Managing and Monitoring Network Management Features

Additional References

MIBs

MIB MIBs Link

None To locate and download MIBs for selected platforms, Cisco software

releases, and feature sets, use Cisco MIB Locator found at the
following URL:

http://www.cisco.com/go/mibs

RFCs

RFC Title

No new or modified RFCs are supported by this
feature, and support for existing RFCs has not been
modified by this feature.

Technical Assistance

Description Link

The Cisco Support and Documentation website
provides online resources to download documentation,
software, and tools. Use these resources to install and
configure the software and to troubleshoot and resolve
technical issues with Cisco products and technologies.
Access to most tools on the Cisco Support and
Documentation website requires a Cisco.com user ID
and password.

http://www.cisco.com/cisco/web/support/index.html

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Chapter 4 Managing and Monitoring Network Management Features

Feature Information for Monitoring and Managing the ASR 901 Router

Feature Information for Monitoring and Managing the ASR 901
Router

Table 1 lists the release history for this feature and provides links to specific configuration information.

Use Cisco Feature Navigator to find information about platform support and software image support.
Cisco Feature Navigator enables you to determine which software images support a specific software
release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn.
An account on Cisco.com is not required.

Note Table 1 lists only the software release that introduced support for a given feature in a given software

release train. Unless noted otherwise, subsequent releases of that software release train also support that
feature.

Table 1 Feature Information for Monitoring and Managing the ASR 901 Router

Feature Name Releases Feature Information

Monitoring and Managing the ASR 901 Router 15.2(2)SNI The following sections provide information about this

feature:

• Network Management Features for the ASR 901

• How to Configure Network Management Features on

ASR 901

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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

OL-23826-09