Alcatel-Lucent 7705 SAR User Manual

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Alcatel-Lucent7705 SAR

S E R V I C E AG G R E G AT I O N R O U T E R | R E L E A S E 1. 0

The Alcatel-Lucent7705 Service Aggregation Router (SAR) deliversindustry-leadingIP/MPLS and pseudowire capabilities in a compact platform that has the ability to groom and aggregate multiple media, service and transport protocols onto a normalized, economical packet transport infrastructure.

The Alcatel-Lucent7705 SAR is extrem­ ely well suited to the transport needs of the evolving mobile radio access network­ (RAN). The platform delivers strong convergence capabilities in the mobile RAN with native service processing of 2G, 3G and 4G traffic. In addition, the platform can provide a powerful solution for wireline­ aggregation­ and routing in carrier and enterprise applications. For example, theAlcatel-Lucent7705 SAR can be deployed in a T1/E1 private line multiplexing environment.

The Alcatel-Lucent7705 SAR owes much of its development heritage to theAlcatel-LucentService Router (SR) product line. Sharing much of themarket-leadingfeature set of that product, theAlcatel-Lucent7705 SAR brings a powerful,service-orientedcapability to the RAN, but in a form factor and at a price point that are particularly appropriate for cell sites and hub locations. Withend-to-endservice management under theAlcatel-Lucent5620 management

portfolio, the Alcatel-Lucent7705 SAR greatly augments the IP/MPLS RAN transport solution fromAlcatel-Lucent.

Industry-leadingscalability and density is provided in the8-slot,two rack unit (RU) version that supports up to 96 T1/E1

Any Service, Any Port (ASAP) ports. On the network uplink side, media connec­ tivity options are: Ethernet, Fast Ethernet (FE), Gigabit Ethernet (GE), or n xT1/E1 Multi-LinkPoint-to-PointProtocol (MLPPP). The platform can be optionally configured with a redundant core control module and uplinks. TheAlcatel-Lucent7705SAR-8has eight slots; two are allocated for control and switch modules (CSMs), with the remaining six being available for user traffic adapter cards. The AlcatelLucent 7705 SAR has a compact modular architecture, constructed to allow flexible use of line adapter cards so operators can optimize the configuration to meet the specific requirements of a site.

With the modular architecture comes additional resilience and flexibility. The solution can optionally support 1+1 fully redundant CSMs. Each adapter card has dual paths to the active and standby CSMs. Each of the six adapter card slots can be used for any adapter card type, removing the burden of complex pre-engineeringand future scenario planning. The two adapter card types supported in Release 1.0 are a16-portASAP T1/E1 adapter card and an8-portEthernet adapter card.

The ASAP adapter card supports ATM, inverse multiplexing over ATM (IMA), TDM and MLPPP. The Ethernet adapter card has six ports of auto-sensing10/100Base-Tports plus two further ports supporting 10/100/1000 Base TX with small form factor pluggable (SFPs) optics. Each slot is connected to the switching fabric on the CSM via a 1 Gb/s link to host existing and future interface types.

Service aggregation and networking

To provide the most efficient transport solution, the Alcatel-Lucent7705 SAR employs pseudowire encapsulation (PWE3) methods to map services end to end. The use of pseudowires ensures that the key attributes of the service are maintained, while using a costeffective packet environment to aggregate services.

The Alcatel-Lucent7705 SAR supports RFC 5086 —Structure-AwareTime Division Multiplexed (TDM) Circuit Emulation Service over Packet Switched Network (CESoPSN) for the encapsu­­ lation and transport of TDM traffic, for example, 2G TDM services. The use of circuit emulation service (CES) ensures that only the active timeslots are transported, keeping bandwidth usage to a minimum. TheAlcatel-Lucent7705 SAR also supports RFC 4717 — Encapsu­ lation Methods for Transport of

Asynchronous Transfer Mode (ATM) over MPLS Networks (also known as draft-ietf-pwe3-atm-encap).TheAlcatel-Lucent7705 SAR supports N:1 cell mode for transport ofATM-basedservices. Multiple access ATM ports are bundled together to attain higher speeds using IMA. The IMA protocol is terminated on theAlcatel-Lucent7705 SAR and only the cells containing user data belonging to a virtual circuit/virtual path (VC/VP) structure are transported.

In addition, the Alcatel-Lucent7705 SAR supports RFC 4448 — Encapsu­ lation Methods for Transport of Ethernet over MPLS Networks, which specifies how Ethernet pseudowires can be used to transport Ethernet traffic across the packet network. To offer greater scalability, all the traffic out of an Ethernet port can be carried over a single Ethernet pseudowire or, alternatively, a pseudowire can be created for each VLAN that is assigned to a different service orend-customer.When dynamic signaling is deployed, theend-to-endpseudowire is established using targeted label distribution protocol(T-LDP)and the MPLS tunnel via LDP. In addition to efficientLDP-baseddynamic signaling, static provisioning of both the MPLS tunnel and the pseudowire is also supported.

Figure 1. Low-cost,high-qualitybackhaul using MPLS pseudowires

Quality of service and traffic management

It is critical to maintain the end-to-endquality of service (QoS) for packet traffic. Not all types of traffic have the same set of requirements. Voice traffic in particular requires low latency and jitter (latency variation) and also low loss, whereas data traffic often has less stringent delay requirements but may be very sensitive to loss, as packet loss can seriously constrain applica­ tion throughput. To offer the req­ uired treatment throughout the network, traffic flows with different requirements­ are identified at the access and markedin-linewith the appropriate QoS metrics. Traffic classification and marking is carried out based on the following:

Classification (Layer 1/Layer 2/Layer 2.5 and/or Layer 3 header):


Ethernet port/VLAN

ATM service category



Ethernet 802.1p/VLAN



Layer 2 (802.1p)

Layer 2.5 (EXP) both for tunnel and PWE3

Layer 3 (DiffServ)

Cell Site









Node B












7705 SAR


Ethernet, MLPPP

PSN/Metro Ethernet/

Ethernet, MLPPP















7710/7750 SR,





7670 RSP

TDM Pseudowire

MPLS Tunnel

ATM Pseudowire

Ethernet Pseudowire

MPLS Pseudowires Allow Convergence and Dynamic Bandwidth Allocation

Over Multiple Media, Enabling Low Cost Backhaul

2 Alcatel-Lucent7705 SAR | Data Sheet

The Alcatel-Lucent7705 SAR utilizes extensive traffic management policies to ensure fairness with detailed classification and hierarchical scheduling including minimum/maximum, profiled, round robin and strict priority scheduling andmulti-tierpolicing to differentiate and prioritize individual services and flows.

Operations, administration and maintenance

In order to ensure continuity of services, the Alcatel-Lucent7705 SAR has a full set of operations, adminis­ tration and maintenance (OAM) features including:

LSP ping

LSP traceroute

Service distribution path (SDP) ping

¬Verifies, for example, tunnel connectivity and round trip delay

Virtual circuit connectivity verification (VCCV)

¬Verifies, for example, service level existence and round trip time

¬Extends OAM to pseudowire services

Service Assurance Agent (SAA)

¬Runs in background, periodically collecting network “health” information from OAM mechanisms­ such as VCCV and monitoring­ for problems such as SLA transgressions.

These features, when under the control of the Alcatel-Lucent5620 management portfolio, ensure rapid fault detection as well as efficient troubleshooting. In particular, SLAs can be monitored, and transgressions detected and reported via the SAA.


Cell sites rely on the backhaul network to provide synchronous interfaces for the proper delivery of data. In addition, cell sites may rely on the network interfaces as stable references with which to derive radio frequencies (RFs) and in order to ensure reliable subscriber handover between cell towers.

The Alcatel-Lucent7705 SAR supports external reference timing, line timing and adaptive timing in Release 1.0.

The adaptive timing is fully capable of offering end-to-endsynchronization. In addition, theAlcatel-Lucent7705 SAR is completelyhardware-readyto support IEEE1588v2. This IEEE standard defines a method to minimize the effects of delay and delay variation (jitter). This is accomplished by a combi­ nation ofbuilt-inarchitectural features and also powerful QoS mechanisms to minimize the delay experienced by synchronization traffic. This is a corner­ stone of the design of theAlcatel-Lucent7705 SAR. Abuilt-inStratum-3clock is available in the control and switch module to assist in synchronization­ maintenance.


Cost-effectivemigration from E1/

T1-basedbackhaul topacket-basedtransport, leveraging Ethernet services over a wide range of first mile media.

Resiliency and redundancy including: one-for-onehitless control and switch module failover, synchronization redundancy, network uplink resiliency and redundancy of power feeds.

Powerful, service-awareOAM capabilities complemented by theAlcatel-Lucent5620 management portfolio forGUI-basednetwork and element configuration, provisioning, fault and performance management.

Dense adaptation of multiple converged services onto an economical packet infrastructure.

Extends service routing IP/MPLS capabilities to the cell site, hubs and network edge in a compact form factor.

Dynamic tunnel signaling for scaling, ease of establishment and resiliency.


Transition from PDH-basedconnectivity­ toEthernet-basedcan greatly reduce recurring operating expenditures such as line lease costs.

Advanced resiliency features lead to improved network uptime, which can positively impact customer retention and allow critical services to be offered for increased revenue.

Rapid fault detection and powerful commissioning and troubleshooting tools can improve productivity of operations staff and reduce network downtime.

Multiprotocol and convergence capabilities (with flexible and granular QoS) reduce equipment instances needed to carry multiple fixed and mobile traffic streams.

Modular, flexible architecture alleviates the burden of complex pre-engineeringand future scenario planning.

Alcatel-Lucent7705 SAR | Data Sheet


Technical specifications

Modules and adapter cards

Control and switch module (CSM)

8-portEthernet adapter card (six ports of 10/100 Ethernet, two ports of 10/100/1000 Ethernet)

16-portT1/E1 Any Service, Any Port (ASAP) adapter card


TDM pseudowires

¬RFC 5086 Structure-AwareTime Division Multiplexed (TDM) Circuit Emulation Service over Packet Switched Network (CESoPSN)

ATM pseudowires

¬RFC 4717 Encapsulation Methods for Transport of Asynchronous Transfer Mode (ATM) over MPLS Networks

¬N:1 cell mode, virtual circuit connection and virtual path connection


Ethernet pseudowires

¬RFC 4448 Encapsulation Methods for Transport of Ethernet over MPLS Networks

¬Raw and tagged mode


External reference timing

Line timing

Adaptive timing


Hardware-readyto support IEEE 1588v2

Redundancy and resiliency





MPLS tunnel

Power feeds

Traffic management and QoS

Hierarchical queuing


Profiled (in and out of profile) scheduling

Queue type-basedscheduling

Ingress policing and egress shaping

Up to 8 queues per service

Memory allocation per queue (CBS, MBS per queue)

Premium, assured and best-effortforwarding classes

WRED on ingress and egress

Classification based on:

¬Layer 1/Layer 2/Layer 2.5 and/or Layer 3 header


¬Ethernet port/VLAN

¬ATM service category: (CBR/rt-VBRrt-VBR/UBR)


¬Ethernet 802.1p/VLAN


Marking based on:

¬Layer 2 (802.1p)

¬Layer 2.5 (EXP) both for tunnel and PWE3

¬Layer 3 (DiffServ)

Security (node access)

User ID/password-basedauthentication and authorization

¬Exponential login backoff for brute force attacks

¬Local or remote storing of user-info

Remote authentication/ authorization via Remote Authentication Dial In User Service (RADIUS) and Terminal Access Controller Access-ControlSystem (TACACS)

Secure Shellv2, Secure File Transfer Protocol and Simple Network Management Protocol (SNMP) Version 3

¬Secure open interfaces


¬Capture security logs on local or remote server

Alarm on suspicious sequence of operations

Nodal attack

Basic firewall with filtering of control plane traffic

Denial of service (DoS) attack prevention (rate-limitingand prioritization)

Data security

Transfer over peer-to-peertunnel (MPLS)

MD5 authentication

Sequence numbers prevent replaying of data

Statistics available on suspicious behavior


Fully-featured,industry-standardcommand line interface

Port and service mirroring

Service assurance tools, including LSP ping, LSP traceroute, SDP ping, VCCV

SSH and Telnet

FTP, Trivial File Transfer Protocol and Secure Copy Protocol



SNMP v2/v3

Safety standards and regulatory compliance

Safety: CSA 60950-12001


¬EN55022 1998 (Class A)

¬FCC Part 15 - 2003 (Class A)

Physical dimensions

Height: 2 RU, 8.9 cm (3.5 in.)

Depth: 25.4 cm (10 in.)

Width: 48.3 cm (19 in.)

Rack mountable in a 30 cm x 45 cm (11.8 in x 17.7 in.) rack


-48vfeeds, 180 W maximum draw


• One tray of eight fans

Operating environment

Normal operating temperature range: -5°Cto +45°C

(23°F to 113°F)

Short term (96 hours) extended temperature range: -5°Cto +55°C (23°F to 131°F)

Normal humidity: 5% to 85%

Short term (96 hours) extended humidity range: 5% to 95%

Standards and protocols

Standards compliance

IEEE 802.1p/Q VLAN Tagging

IEEE 802.3 10BaseT

IEEE 802.3u 100BaseTX

IEEE 802.3x Flow Control

IEEE 802.3z 1000BaseSX/LX

Protocol support


RFC 5036 LDP Specification


RFC 3031 Multiprotocol Label Switching Architecture

RFC 3032 MPLS Label Stack Encoding

RFC 4379 Detecting MultiProtocol Label Switched (MPLS) Data Plane Failures

Differentiated services

RFC 2474 Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers

RFC 2597 Assured Forwarding PHB Group

RFC 2598 An Expedited Forwarding PHB

RFC 3140 Per Hop Behavior Identification Codes


RFC 768 User Datagram Protocol

RFC 1350 The TFTP Protocol (Revision 2)

RFC 791 Internet Protocol

RFC 792 Internet Control Message Protocol

RFC 793 Transmission Control Protocol

RFC 826 Ethernet Address Resolution Protocol

RFC 854 Telnet Protocol Specification

RFC 1812 Requirements for IPv4 Routers


RFC 1332 PPP Internet Protocol Control Protocol (IPCP)

RFC 1661 The Point-to-PointProtocol (PPP)

RFC 1989 PPP Link Quality Monitoring

RFC 1990 The PPP Multilink Protocol (MP)


RFC 2514 Definitions of Textual Conventions and OBJECT-IDENTITIESfor ATM Management, February 1999

RFC 2515 Definition of Managed Objects for ATM Management, February 1999

af-tm-0121.000Traffic Management Specification Version 4.1, March 1999

Alcatel-Lucent7705 SAR | Data Sheet


ITU-TRecommendation I.610 –B-ISDNOperation and Maintenance Principles and Functions version 11/95

ITU-TRecommendation I.432.1 –B-ISDNuser-networkinterface–Physical layer specification: General characteristics

GR-1248-CORE– Generic Requirements for Operations of ATM Network Elements (NEs) Issue 3 June 1996

GR-1113-CORE– Asynchronous Transfer Mode (ATM) Adaptation Layer (AAL) Protocols Generic Requirements, Issue 1, July 1994


RFC 4447 Pseudowire Setup and Maintenance using the Label Distribution Protocol (LDP)

RFC 4385 Pseudowire Emulation Edge-to-Edge(PWE3) Control Word for Use over an MPLS PSN

RFC 4717 Encapsulation Methods for Transport of Asynchronous Transfer Mode (ATM) over MPLS Networks

RFC 4448 Encapsulation Methods for Transport of Ethernet over MPLS Networks

RFC 5086 Structure-AwareTime Division Multiplexed (TDM) Circuit Emulation Service over Packet Switched Network (CESoPSN)

RFC 5085 Pseudowire Virtual Circuit Connectivity Verification (VCCV): A Control Channel for Pseudowires


RFC 2865 Remote Authentication Dial In User Service (RADIUS)

RFC 2866 RADIUS Accounting


draft-ietf-secsh-architecture.txtSSH Protocol Architecture

draft-ietf-secsh-userauth.txtSSH Authentication Protocol

draft-ietf-secsh-transport.txtSSH Transport Layer Protocol

draft-ietf-secsh-connection.txtSSH Connection Protocol

draft-ietf-secsh-newmodes.txt SSH Transport Layer Encryption Modes


IETF draft-grant-tacacs-02.txt

Network Management

ITU-TX.721: Informationtechnology-OSI-Structureof Management Information

ITU-TX.734: Informationtechnology-OSI-SystemsManagement: Event Report Management Function

M.3100/3120 Equipment and Connection Models

TMF 509/613Network Connectivity Model

RFC 1157 SNMPv1






RFC 2571 SNMP-Framework-MIB


RFC 2573 SNMP-Applications

RFC 2574 SNMP-User-Based-SM-MIB

RFC 2575 SNMP-View-Based-ACM-MIB


RFC 2665 Ethernet-Like-MIB


RFC 2863 The Interfaces Group-MIB

RFC 2864 Inverted-Stack-MIB

RFC 3014 Notification-Log-MIB


RFC 3411 An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks

RFC 3412 Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)

RFC 3413 Simple Network Management Protocol (SNMP) Applications

RFC 3414 User-basedSecurity Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)





Support for an extensive range of proprietary MIBs

Alcatel-Lucent7705 SAR | Data Sheet

5 Alcatel, Lucent,Alcatel-Lucentand theAlcatel-Lucentlogo are trademarks ofAlcatel-Lucent.All other trademarks are the property of their respective owners. The information presented is subject to change without notice.Alcatel-Lucentassumes no responsibility for inaccuracies contained herein. © 2008Alcatel-Lucent.All rights reserved. CAR4688080501 (05)