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Nortel Ethernet Routing Switch 5500 Series

Conﬁguration - System Monitoring

NN47200-505 (217467-C)

Document status: Standard Document version: 03.01 Document date: 27 August 2007

The information in this document is subject to change without notice. The statements, conﬁgurations, technical data, and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full responsibility for their applications of any products speciﬁed in this document. The information in this document is proprietary to Nortel Networks.

The software described in this document is furnished under a license agreement and may be used only in accordance with the terms of that license. The software license agreement is included in this document.

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Notwithstanding any other license agreement that may pertain to, or accompany the delivery of, this computer software, the rights of the United States Government regarding its use, reproduction, and disclosure are as set forth in the Commercial Computer Software-Restricted Rights clause at FAR 52.227-19.

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In the interest of improving internal design, operational function, and/or reliability, Nortel Networks reserves the right to make changes to the products described in this document without notice.

Nortel Networks does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.

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This Software License Agreement ("License Agreement") is between you, the end-user ("Customer") and Nortel Networks Corporation and its subsidiaries and afﬁliates ("Nortel Networks"). PLEASE READ THE FOLLOWING CAREFULLY. YOU MUST ACCEPT THESE LICENSE TERMS IN ORDER TO DOWNLOAD AND/OR USE THE SOFTWARE. USE OF THE SOFTWARE CONSTITUTES YOUR ACCEPTANCE OF THIS LICENSE AGREEMENT. If you do not accept these terms and conditions, return the Software, unused and in the original shipping container, within 30 days of purchase to obtain a credit for the full purchase price.

"Software" is owned or licensed by Nortel Networks, its parent or one of its subsidiaries or afﬁliates, and is copyrighted and licensed, not sold. Software consists of machine-readable instructions, its components, data, audio-visual content (such as images, text, recordings or pictures) and related licensed materials including all whole or partial copies. Nortel Networks grants you a license to use the Software only in the country where you acquired the Software. You obtain no rights other than those granted to you under this License Agreement. You are responsible for the selection of the Software and for the installation of, use of, and results obtained from the Software.

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authorized; b) reverse assemble, reverse compile, reverse engineer or otherwise translate the Software; c) create derivative works or modiﬁcations unless expressly authorized; or d) sublicense, rent or lease the Software. Licensors of intellectual property to Nortel Networks are beneﬁciaries of this provision. Upon termination or breach of the license by Customer or in the event designated hardware or CFE is no longer in use, Customer will promptly return the Software to Nortel Networks or certify its destruction. Nortel Networks may audit by remote polling or other reasonable means to determine Customer’s Software activation or usage levels. If suppliers of third party software included in Software require Nortel Networks to include additional or different terms, Customer agrees to abide by such terms provided by Nortel Networks with respect to such third party software.

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227.7202 (for DoD entities).

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Revision History

Date Revised Version Reason for revision

July 2005

1.00

New document for Software Release 4.2.

July 2006

2.00

Document updated for Software Release 5.0.

August 2007

3.0

Document updated for Software Release 5.1

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Contents

Preface 11

Nortel Ethernet Routing Switch 5500 Series 11 Related publications 12 Finding the latest updates on the Nortel web site 13 How to get help 13

Chapter 1 General System Monitoring Considerations 15

System logging 15

Conﬁguring the system log with the CLI 15 Viewing the system log in the Web-based Management Interface 17 Conﬁguring the system log with the Java Device Manager 18

Remote logging 20

Conﬁguring remote logging with the CLI 20 IGMP and the system event log 23 Port mirroring 25

Port-based mirroring conﬁguration 25

Address-based mirroring conﬁguration 26

Port mirroring limitations 27

Conﬁguring port mirroring with the CLI 27 Showing unit statistics 31 Graphing switch chassis data 32

OSPF tab 42

VRRP tab 44 Graphing switch port data 44

Ethernet Errors tab 47

Rmon tab 52

EAPOL Stats tab 55

EAPOL Diag tab 56

LACP tab 59

Misc tab 61 Graphing multilink trunk statistics 61

Ethernet Errors tab 64 Graphing VLAN DHCP statistics 68 Creating a graph 69

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Chapter 2 System Diagnostics and Statistics 71

Diagnostic information in the CLI 71

Port statistics (CLI) 71

Stack loopback tests 73

Stack monitor 75 Diagnostic information in the Web-based Management Interface 77

Viewing port statistics (Web) 77

Viewing all port errors 79

Viewing interface statistics 80

Viewing Ethernet error statistics 82

Viewing transparent bridging statistics 85

Monitoring MLT trafﬁc 87

Chapter 3 Conﬁguring Remote Network Monitoring (RMON) 89

Conﬁguring RMON with the CLI 89

Conﬁguring RMON with the Web-based Management Interface 94

Conﬁguring RMON fault threshold parameters 94

Deleting an RMON threshold conﬁguration 96

Viewing the RMON fault event log 96 Conﬁguring RMON with the Java Device Manager 97

Working with RMON information 97

Alarms 107

How RMON alarms work 107

Creating alarms 109

Alarm Manager 110

Events 114

Log information 118

Chapter 4 IP Flow Information Export (IPFIX) 119

IPFIX conﬁguration using the Java Device Manager 120

Global IPFIX conﬁguration 120

Conﬁguring IPFIX ﬂows 120

Conﬁguring IPFIX collectors 122

Conﬁguring IPFIX ports 124

Graphing Exporter Statistics 125

Exporter Stats Clear Time 126 IPFIX Conﬁguration using the Command Line Interface 126

ip ipﬁx collector command 127

ip ipﬁx enable command (Global Conﬁguration) 127

ip ipﬁx slot command 128

ip ipﬁx enable command (Interface Conﬁguration) 128

ip ipﬁx port command 128

ip ipﬁx ﬂush command 129

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show ip ipﬁx table command 129 IPFIX conﬁguration using the Web-based Management Interface 130

Global conﬁguration using the Web-based Management Interface 130

Conﬁguring ﬂows using the Web-based Management Interface 131

Viewing IPFIX data 132

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Preface

This guide provides information and instructions on the conﬁguration and usage of system monitoring tools on the 5500 Series Nortel Ethernet Routing Switch. Please consult any documentation included with the switch and the product release notes (see ""Related publications" (page 12)") for any errata before beginning the conﬁguration process.

Nortel Ethernet Routing Switch 5500 Series

" 5500 Series Switch Platforms" (page 11)outlines the switches that are part

of the 5500 Series of Nortel Ethernet Routing Switches.

5500 Series Switch Platforms

5500 Series Switch Model

Key Features

Nortel Ethernet Routing Switch 5510-24T

A 24 port, 10/100/1GBase-T, Layer 4, diffserv-capable, stackable Ethernet switch. This switch contains two shared SFP ports.

Nortel Ethernet Routing Switch 5510-48T

A 48 port, 10/100/1GBase-T, Layer 4, diffserv-capable, stackable Ethernet switch. This switch contains two shared SFP ports.

Nortel Ethernet Routing Switch 5520-24T-PWR

A 24 port, 10/100/1GBase-T, Layer 4, diffserv-capable, stackable Ethernet switch with full Power over Ethernet (PoE) capability on all copper ports. This switch contains four shared SFP ports.

Nortel Ethernet Routing Switch 5520-48T-PWR

A 48 port, 10/100/1GBase-T, Layer 4, diffserv-capable, stackable Ethernet switch with full Power over Ethernet (PoE) capability on all copper ports. This switch contains four shared SFP ports.

Nortel Ethernet Routing Switch 5530-24TFD

A 24 port, 10/100/1GBase-T, Layer 4, diffserv-capable, stackable Ethernet switch. This switch contains twelve shared SFP ports and two XFP ports.

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12 Preface

Related publications

For more information about the management, conﬁguration, and usage of the Nortel Ethernet Routing Switch 5500 Series, refer to the publications listed in " Nortel Ethernet Routing Switch 5500 Series Documentation"

(page 12).

Nortel Ethernet Routing Switch 5500 Series Documentation

Title Description Part Number

Nortel Ethernet Routing Switch 5500 Series Installation

Instructions for the installation of a switch in the Nortel Ethernet Routing Switch 5500 Series. It also provides an overview of hardware key to the installation, conﬁguration, and maintenance of the switch.

NN47200-300

Nortel Ethernet Routing Switch 5500 Series Conﬁguration System

Instructions for the general conﬁguration of switches in the 5500 Series that are not covered by the other documentation.

NN47200-500

Nortel Ethernet Routing Switch 5500 Series Conﬁguration Security

Instructions for the conﬁguration and management of security for switches in the 5500 Series.

NN47200-501

Nortel Ethernet Routing Switch 5500 Series Conﬁguration

- VLANs, Spanning Tree, and Link Aggregation

Instructions for the conﬁguration of spanning and trunking protocols on 5500 Series switches

NN47200-502

Nortel Ethernet Routing Switch 5500 Series Conﬁguration IP Routing Protocols

Instructions on the conﬁguration of IP routing protocols on 5500 Series switches.

NN47200-503

Nortel Ethernet Routing Switch 5500 Series Conﬁguration Quality of Service

Instructions on the conﬁguration and implementation of QoS and ﬁltering on 5500 Series switches.

NN47200-504

Nortel Ethernet Routing Switch 5500 Series Conﬁguration System Monitoriing

Instructions on the conﬁguration, implementation, and usage of system monitoring on 5500 Series switches.

NN47200-505

Nortel Ethernet Routing Switch 5500 Series Release Notes

- Software Release 5.1

Provides an overview of new features, ﬁxes, and limitations of the 5500 Series switches. Also included are any supplementary documentation and document errata.

NN47200-400

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How to get help 13

Title Description Part Number

Installing the Nortel Ethernet Redundant Power Supply 15

Instructions for the installation and usage of the Nortel Ethernet RPS

15.

217070-A

DC-DC Converter Module for the Baystack 5000 Series Switch

Instructions for the installation and usage of the DC-DC power converter.

215081-A

Nortel Ethernet Routing Switch 5500 Series Installation SFP

Instructions for the installation and usage of SFP and XFP transceivers and GBICs.

318034-C

Finding the latest updates on the Nortel web site

The content of this documentation was current at the time of release. To check for updates to the documentation and software for the Nortel Ethernet Routing Switch 5500 Series, use the links provided in the following table.

Software Nortel Ethernet Routing Switch 5500 Series Software Documentation Nortel Ethernet Routing Switch 5500 Series Documentation

How to get help

If a service contract for the Nortel product has been purchased from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller for assistance.

If a Nortel service program was purchased, contact Nortel Technical Support.

The following information is available online:

•

contact information for Nortel Technical Support

•

information about the Nortel Technical Solutions Centers

•

information about the Express Routing Code (ERC) for your product

An ERC is available for many Nortel products and services. When an ERC is used, the call is routed to technical support personnel who specialize in supporting the service or product. The ERC for a particular product or service is available online.

The main Nortel support portal is availableat http://www.nortel.com/support.

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Chapter 1 General System Monitoring Considerations

System monitoring is an important aspect of switch operation. The Nortel Ethernet Routing Switch 5500 Series provides a wide range of system monitoring options that allow the administrator to closely follow the operation of a switch or stack.

This chapter notes two general system monitoring considerations, system logging and port mirroring, that must be taken into account when using the Nortel Ethernet Routing Switch 5500 Series. Subsequent chapters provide information on speciﬁc system monitoring tools and their use.

System logging

The Nortel Ethernet Routing Switch 5500 Series supports system logging (syslog), a software tool to log system events for debugging and analysis.

To utilize the syslog, the switch applications that run in the Nortel Ethernet Routing Switch 5500 Series, such as IGMP, MLT, STP, should be registered with the syslog tool.

Any events that happen in the above-mentioned applications can be logged with the help of the syslog tool. The logged events are stored in volatile RAM, non-volatile RAM, or in a remote host. The storage location can be selected using the Command Line Interface (CLI).

Conﬁguring the system log with the CLI

This section outlines the CLI commands used in the conﬁguration and management of the system log.

show logging command

The show logging command displays the conﬁguration, and the current contents, of the system event log.

The syntax for the show logging command is:

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show logging [config] [critical] [serious] [informational] [sort-reverse]

The show logging command is executed in the Privileged EXEC command mode.

" show logging parameters" (page 16) describes the parameters for this

command.

show logging parameters

Parameter Description

conﬁg Display conﬁguration of event logging. critical Display critical log messages. serious Display serious log messages. informational Display informational log messages. sort-reverse

Display informational log messages in reverse chronological order (beginning with most recent).

logging command

The logging command conﬁgures the system settings for the system event log.

The syntax for the logging command is:

The logging command is executed in the Global Conﬁguration command mode.

" logging parameters" (page 16) describes the parameters for this command.

logging parameters

Parameter Description

enable | disable

Enables or disables the event log (default is Enabled).

level critical | serious | informational | none

Speciﬁes the level of logging stored in DRAM.

nv-level critical | serious | none

Speciﬁes the level of logging stored in NVRAM.

no logging command

The no logging command disables the system event log.

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System logging 17

The syntax for the no logging command is:

no logging

The no logging command is executed in the Global Conﬁguration command mode.

default logging command

The default logging command conﬁgures the system settings as the factory default settings for the system event log.

The syntax for the default logging command is:

default logging

The default logging command is executed in the Global Conﬁguration command mode.

clear logging command

The clear logging command clears all log messages in DRAM. The syntax for the clear logging command is:

clear logging [non-volatile] [nv] [volatile]

" clear logging parameters" (page 17) outlines the parameters for this

command.

clear logging parameters

Parameter Description

non-volatile Clears log messages from NVRAM. nv

Clears log messages from NVRAM and DRAM.

volatile Clears log messages from DRAM.

The clear logging command is executed in the Privileged EXEC command mode.

Viewing the system log in the Web-based Management Interface

The Web-based Management Interface can be used to view the System Log. To perform this action, follow this procedure:

Step Action 1

Open the System Log screen by selecting Fault > System Log from the menu. This screen is illustrated in "System Log screen"

(page 18).

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System Log screen

In the System Log (View By) section, select the messages to be displayedby selecting a value from the Display Messages From list.

Click Submit.

—End—

Messages can also be cleared from the log by selecting a value from the Clear Messages From list and then clicking Submit. If messages are not to be cleared, ensure that this list has None selected.

Conﬁguring the system log with the Java Device Manager

The Java Device Manager (JDM) also provides functionality for managing the system log. To conﬁgure the system log, follow this procedure:

Step Action 1

Open the System Log screen by selecting Edit > Diagnostics > System Log from the menu. Select the System Log Settings

tab. This screen is illustrated in "System Log dialog - System Log

Settings tab" (page 19).

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System logging 19

System Log dialog - System Log Settings tab

In the ﬁelds provided, conﬁgure the system log settings. The following table outlines the ﬁelds on this screen.

System Log Settings ﬁelds

Field Description

Operation Turns the system log on or off. BufferFullAction Speciﬁes whether the system log

overwrites itself or discontinues the storage of messages when the buffer is full.

Volatile - CurSize Shows the current number of messages

stored in volatile memory.

Volatile - SaveTargets Selects the severity of system messages

to save.

non-Volatile - CurSize Shows the current number of messages

stored in non-volatile memory.

non-Volatile - SaveTargets Selects the severity of system messages

to save.

ClearMessageBuffers Selects the sections of the system log to

delete.

Click Apply.

—End—

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Remote logging

The remote logging feature in Software Release 5.0 provides an enhanced level of logging by replicating system messages on a syslog server. System log messages from several switches can be collected at a central location, alleviating the network manager from querying each switch individually to interrogate the log ﬁles.

The remote syslog server must be conﬁgured and set up on the unit to log informational messages to this remote server. The UDP packet is sent to port 514 of the conﬁgured remote syslog server.

Once the IP address is in the system, syslog messages can be sent to the remote syslog server. If a syslog message is generated prior to capturing the IP address of the server, the system stores up to 10 messages that are sent once the IP address of the remote server is on the system.

This feature can be conﬁgured by enabling remote logging, specifying the IP address of the remote syslog server, and specifying the severity level of the messages to be sent to the remote server.

Conﬁguring remote logging with the CLI

Use the CLI to conﬁgure remote logging. This section discusses the commands that enable remote logging.

show logging command

The show logging command displays the conﬁguration and the current contents of the system event log. Refer to ""show logging command" (page

15)" for an explanation of this command.

logging remote enable command

Note: The default value for remote logging is Disabled

The logging remote enable command enables the use of a remote syslog server. The syntax for the logging remote enable command is:

logging remote enable

The logging remote enable command is executed in the Global Conﬁguration command mode.

no logging remote enable command

The no logging remote enable command disables the use of a remote syslog server. The syntax for the no logging remote enable command is:

no logging remote enable

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Remote logging 21

The no logging remote enable command is executed in the Global Conﬁguration command mode.

logging remote address command

The logging remote address command sets the remote server for receiving the syslog messages. The syntax for the logging remote

address command is:

logging remote address <A.B.C.D>

The logging remote address command is executed in the Global Conﬁguration command mode.

"logging remote address parameters" (page 21) describes the parameters

for the logging remote address command.

logging remote address parameters

Parameters and variables Description

<A.B.C.D> Speciﬁes the IP address of the remote server in

dotted-decimal notation.

The default address is 0.0.0.0.

no logging remote address command

The no logging remote address command clears the IP address of the remote server. The syntax for the no logging remote address command is:

no logging remote address

The no logging remote address command is executed in the Global Conﬁguration command mode.

logging remote level command

The logging remote level command sets the severity level of the logs sent to the remote server. The syntax for the logging remote level command is:

logging remote level {critical | informational | serious | none}

The logging remote level command is executed in the Global Conﬁguration command mode.

" logging remote level parameters" (page 22) describes the parameters for

the logging remote level command.

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logging remote level parameters

Parameters and variables

Description

{critical | serious | informational | none}

Speciﬁes the severity level of the log messages to be sent to the remote server:

•

critical

•

informational

•

serious

• none

no logging remote level command

The no logging remote level command removes any severity level setting and reverts to None. The syntax for the no logging remote

level command is:

no logging remote level

The no logging remote level command is executed in the Global Conﬁguration command mode.

default logging remote level command

The default logging remote level command sets the severity level of the logs sent to the remote server to the default value of None. The syntax for the default logging remote level command is:

default logging remote level

The default logging remote level command is executed in the Global Conﬁguration command mode.

Conﬁguring remote logging with the Java Device Manager

The Java Device Manager (JDM) also provides functionality for managing remote logging. To conﬁgure remote logging, follow this procedure:

Step Action 1 Open the System Log screen by selecting Edit > Diagnostics >

System Log from the menu. Select the Remote System Log tab.

This tab is illustrated below.

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System Log dialog - Remote System Log tab

In the ﬁelds provided, enter the remote logging information. The following table describes the ﬁelds on this screen.

Remote System Log tab ﬁelds

Field Description

Address The IP address of the remote syslog

server. Enabled Enables or disables remote logging. SaveTargets Sets the severity level of messages that

are saved to the remote server.

Click Apply.

—End—

IGMP and the system event log

IGMP utilizes the components provided by the syslog tool. Functions such as storing messages in the NVRAM or remote host, and displaying these log messages through the CLI, console menu, or Telnet is then carried out by the syslog tool on its own.

The IGMP log events can be classiﬁed into the following three categories based on their severity:

•

Critical

•

Serious

•

Informational

IGMP logs in the messages whenever any of the following types of events take place in the system:

•

IGMP initialization

•

Conﬁguration changes from the user

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•

Stack Join events

•

IGMP messages -- Report, Leave and Query messages received by the switch

Note: Events such as reception of IGMP messages happen frequently in the switch, whenever a new host joins or leaves a group. Logging such messages consumes a lot of log memory.

Therefore, such messages should not be logged in all the time. By default, logging in of such messages is disabled. This feature must be enabled through the CLI to view such messages.

In " IGMP syslog messages" (page 24):

• %d represents a decimal value for the parameter preceding it. For example, 5 for VLAN 5

•

%x represents a hexadecimal value for the parameter preceding it. For example, 0xe0000a01 for Group 224.0.10.1

" IGMP syslog messages" (page 24) describes the IGMP syslog messages

and their severity.

IGMP syslog messages

Severity

Log Messages

Informational IGMP initialization success Critical IGMP initialization failed: Error code %d Informational IGMP policy initialized Informational IGMP conﬁguration loaded successfully Informational IGMP conﬁguration failed. Loaded to factory default Informational IGMP conﬁguration changed: Snooping enabled on VLAN %d Informational IGMP conﬁguration changed: Snooping disabled on VLAN %d Informational IGMP conﬁguration changed: Proxy enabled on VLAN %d Informational IGMP conﬁguration changed: Proxy disabled on VLAN %d Informational IGMP conﬁguration changed: Query time set to %d on VLAN %d Informational IGMP conﬁguration changed: Robust value set to %d on VLAN

Informational IGMP conﬁguration changed: Version %d router port mask

0x%x set on VLAN %d Informational IGMP conﬁguration changed: Unknown multicast ﬁlter enabled Informational IGMP conﬁguration changed: Unknown multicast ﬁlter enabled Informational IGMP conﬁguration changed: Trunk %d created for IGMP

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Port mirroring 25

Severity

Log Messages

Informational IGMP conﬁguration changed: Trunk %d removed for IGMP ports Informational IGMP conﬁguration changed: Mirror ports set Informational IGMP conﬁguration changed: Port %d added to VLAN %d Informational IGMP conﬁguration changed: Port %d removed from VLAN %d Informational IGMP new Querier IP %x learned on port %d Informational IGMP exchange database sent by unit %d Informational IGMP exchange database received on unit %d from %d Informational IGMP exchange database done Informational IGMP stack join completed Serious IGMP not able to join stack: Error code %d Informational IGMP exchange group database sent by unit %d Informational IGMP exchange group database received on unit %d from %d Informational IGMP received report on VLAN %d for Group 0x%x on port %d Informational IGMP received leave on VLAN %d for Group 0x%x on port %d Informational IGMP received query on VLAN %d for Group 0x%x on port %d Informational IGMP dynamic router port %d added Informational IGMP dynamic router port %d removed

Port mirroring

A switch port can be designated to monitor trafﬁc on any two speciﬁed switch ports (port-based) or to monitor trafﬁc to or from any two speciﬁed addresses that the switch has learned (address-based).

Note: A probe device, such as the Nortel Networks StackProbe or equivalent, must be connected to the designated monitor port to use this feature. Contact a Nortel Networks sales agent for details about the StackProbe.

Port-based mirroring conﬁguration

"Port-based mirroring example" (page 26) shows an example of a

port-based mirroring conﬁguration in which port 20 is designated as the monitor port for ports 21 and 22 of Switch S1. Although this example shows ports 21 and 22 monitored by the monitor port (port 20), any of the trunk members of T1 and T2 can also be monitored.

In this example, "Port-based mirroring example" (page 26) shows port X and port Y as members of Trunk T1 and Trunk T2. Port X and port Y are not required to always be members of Trunk T1 and Trunk T2.

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Note: Trunks cannot be monitored and trunk members cannot be conﬁgured as monitor ports.

Port-based mirroring example

In the conﬁguration example shown in "Port-based mirroring example"

(page 26), the designated monitor port (port 20) can be set to monitor trafﬁc

in any of the following modes:

•

Monitor all trafﬁc received by port X.

•

Monitor all trafﬁc transmitted by port X.

•

Monitor all trafﬁc received and transmitted by port X.

•

Monitor all trafﬁc received by port X or transmitted by port Y.

•

Monitor all trafﬁc received by port X (destined to port Y) and then transmitted by port Y.

•

Monitor all trafﬁc received/transmitted by port X and transmitted/received by port Y (conversations between port X and port Y).

•

Monitor all trafﬁc received on many ports.

• Monitor all trafﬁc transmitted on many ports.

•

Monitor all trafﬁc received or transmitted on many ports.

Address-based mirroring conﬁguration

"Address-based mirroring example" (page 27) shows an example of an

address-based mirroring conﬁguration in which port 20, the designated monitor port for Switch S1, is monitoring trafﬁc occurring between address A and address B.

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Address-based mirroring example

In this conﬁguration, the designated monitor port (port 20) can be set to monitor trafﬁc in any of the following modes:

• Monitor all trafﬁc transmitted from address A to any address.

•

Monitor all trafﬁc received by address A from any address.

•

Monitor all trafﬁc received by or transmitted by address A.

•

Monitor all trafﬁc transmitted by address A to address B.

•

Monitor all trafﬁc between address A and address B (conversation between the two stations).

Port mirroring limitations Conﬁguring port mirroring with the CLI

Port mirroring can be conﬁgured with the CLI commands detailed in this section.

show port-mirroring command

The show port-mirroring command displays the port mirroring conﬁguration.

The syntax for the show port-mirroring command is:

show port-mirroring

The show port-mirroring command is executed in the Privileged EXEC command mode.

port-mirroring command

The port-mirroring command sets the port mirroring conﬁguration. The syntax for the port-mirroring command is:

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port-mirroring mode {disable | Xrx monitor-port <portlist> mirror-port-X <portlist> | Xtx monitor-port <portlist> mirror-port-X <portlist> | ManytoOneRx monitor-port <portlist> mirror-port-X <portlist> | ManytoOneTx monitor-port <portlist> mirror-port-X <portlist> | ManytoOneRxTx monitor-port <portlist> mirror-port-X <portlist> | XrxOrXtx monitor-port <portlist> mirror-port-X <portlist> | XrxOrYtx monitor-port <portlist> mirror-port-X <portlist> mirror-port-Y <portlist> | XrxYtxmonitor-port <portlist> mirror-port-X <portlist> mirror-port-Y <portlist> | XrxYtxOrYrxXtx monitor-port <portlist> mirror-port-X <portlist> mirror-port-Y <portlist> | Asrc monitor-port <portlist> mirror-MAC-A <macaddr> | Adst monitor-port <portlist> mirror-MAC-A <macaddr> | AsrcOrAdst monitor-port <portlist> mirror-MAC-A <macaddr> | AsrcBdst monitor-port <portlist> mirror-MAC-A <macaddr> mirror-MAC-B <macaddr> | AsrcBdstOrBsrcAdst monitor-port <portlist> mirror-MAC-A <macaddr> mirror-MAC-B <macaddr>}

The following table outlines the parameters for this command.

port-mirroring parameters

Parameter Description

disable Disables port-mirroring. monitor-port Speciﬁes the monitor port. mirror-port-X Speciﬁes the mirroring port X. mirror-port-Y Speciﬁes the mirroring port Y. mirror-MAC-A Speciﬁes the mirroring MAC address A. mirror-MAC-B Speciﬁes the mirroring MAC address B. portlist Enter the port numbers. ManytoOneRx Many to one port mirroring on ingress packets. ManytoOneTx Many to one port mirroring on egress packets. ManytoOneRxTx Many to one port mirroring on ingress and

egress trafﬁc. Xrx Mirror packets received on port X. Xtx Mirror packets transmitted on port X. XrxOrXtx Mirror packets received or transmitted on port X. XrxYtx Mirror packets received on port X and

transmitted on port Y.

Note: Do not use this mode for mirroring broadcast and multicast trafﬁc.

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Parameter Description

XrxYtxOrXtxYrx Mirror packets received on port X and

transmitted on port Y or packets received on

port Y and transmitted on port X. Note: Do

not use this mode for mirroring broadcast and

multicast trafﬁc. XrxOrYtx Mirror packets received on port X or transmitted

on port Y. macaddr Enter the MAC address in format H.H.H. Asrc Mirror packets with source MAC address A. Adst Mirror packets with destination MAC address A. AsrcOrAdst Mirror packets with source or destination MAC

address A. AsrcBdst Mirror packets with source MAC address A and

destination MAC address B. AsrcBdstOrBsrcAdst Mirror packets with source MAC address A and

destination MAC address B or packets with

source MAC address B and destination MAC

address A.

The port-mirroring command is executed in the Global Conﬁguration command mode.

no port-mirroring command

The no port-mirroring command disables port mirroring. The syntax for the no port-mirroring command is:

no port-mirroring

The no port-mirroring command is executed in the Global Conﬁguration command mode.

Conﬁguring port mirroring with the Web-based Management Interface

Port mirroring can also be conﬁgured in the Web-based Management Interface.

To conﬁgure port mirroring, follow this procedure:

Step Action 1

Open the Port Mirroring screen by selecting Applications > Port Mirroring from the menu. This screen is illustrated below.

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Port Mirroring screen

In the Port Mirroring Setting section, enter the new port mirroring settings. The following table outlines the ﬁelds in this section.

Port Mirroring Setting ﬁelds

Field Description

Monitoring Mode Choose any one of the six port-based

monitoring modes or any one of the ﬁve address-based monitoring modes. The following options are available:

•

Disabled

•

-> Port X

•

Port X ->

•

<-> Port X

•

-> Port X or Port Y ->

•

-> Port X and Port Y ->

• <-> Port X and Port Y <->

•

Address A -> any Address

•

any Address -> Address A

•

<-> Address A

• Address A -> Address B

•

Address A <-> Address B

The default value is Disabled.

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Field Description

Monitor Port Select the port that will act as the

monitoring port.

Port X In port-based conﬁgurations, choose the

ﬁrst switch port to be monitored by the designated monitor port. This port is monitored according to the value "X" in the Monitoring Mode ﬁeld.

Port Y In port-based conﬁgurations, choose the

second switch port to be monitored by the designated monitor port. This port is monitored according to the value "Y" in the Monitoring Mode ﬁeld.

Address A In address-based conﬁgurations, type the

MAC address to monitor by the designated monitor port. This address is monitored according to the value "Address A" in the Monitoring Mode ﬁeld.

Address B In address-based conﬁgurations, type the

MAC address to monitor by the designated monitor port. This address is monitored according to the value "Address B" in the Monitoring Mode ﬁeld.

Click Submit. The new mirroring conﬁguration is displayed in Port Mirroring

Active section.

—End—

Showing unit statistics

The JDM allows you to see the statistics for each unit in a stack. To see the statistics for a unit, open the Unit Stats tab by selecting Edit >

Unit > Unit Stats.

Unit Stats screen

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Field Description

UnitNoResourcesPktsDropped The number of packets dropped on stack up/down ports on this

unit due to a lack of resources.

Graphing switch chassis data

The JDM provides the ability to view switch statistical information in a variety of graphs.

To make use of these capabilities, open the Graph Chassis screen by selecting Graph > Chassis from the menu. This screen is illustrated below.

Graph Chassis screen

The following sections describe the informational tabs on this screen and the type of data each represents. Refer to "Creating a graph" (page 69) for the procedure to graph this data.

SNMP tab

The SNMP tab provides read-only statistical information about SNMP trafﬁc. To view the SNMP tab, follow this procedure:

Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen opens with the SNMP tab selected. This screen is illustrated below.

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Graph Chassis dialog - SNMP tab

The following table describes the ﬁelds on this tab.

SNMP tab ﬁelds

Field Description

InPkts The total number of messages delivered to the

SNMP from the transport service.

OutPkts The total number of SNMP messages passed

from the SNMP protocol to the transport service.

InTotalReqVars The total number of MIB objects retrieved

successfully by the SNMP protocol as the result of receiving valid SNMP Get-Request and Get-Next PDUs.

InTotalSetVars The total number of MIB objects altered

successfully by the SNMP protocol as the result of receiving valid SNMP Set-Request PDUs.

InGetRequests The total number of SNMP Get-Request PDUs

that have been accepted and processed by the SNMP protocol.

InGetNexts The total number of SNMP Get-Next PDUs

accepted and processed by the SNMP protocol.

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InSetRequests The total number of SNMP Set-Request

PDUs accepted and processed by the SNMP protocol.

InGetResponses The total number of SNMP Get-Response

PDUs accepted and processed by the SNMP protocol.

OutTraps The total number of SNMP Trap PDUs

generated by the SNMP protocol.

OutTooBigs The total number of SNMP PDUs generated

by the SNMP protocol for which the value of the error-status ﬁeld is tooBig.

OutNoSuchNames The total number of SNMP PDUs generated

by the SNMP protocol for which the value of the error-status ﬁeld is noSuchName.

OutBadValues The total number of SNMP PDUs generated

by the SNMP protocol for which the value of the error-status ﬁeld is badValue.

OutGenErrs The total number of SNMP PDUs generated

by the SNMP protocol for which the value of the error-status ﬁeld is genErr.

InBadVersions The total number of SNMP messages delivered

to the SNMP protocol for an unsupported SNMP version.

InBadCommunityNames The total number of SNMP messages

delivered to the SNMP protocol that used an unknown SNMP community name.

InBadCommunityUses ThetotalnumberofSNMPmessagesdelivered

to the SNMP protocol that represented an SNMP operation not allowed by the SNMP community named in the message.

InASNParseErrs The total number of ASN.1 or BER errors

encountered by the SNMP protocol when decoding received SNMP messages.

InTooBigs The total number of SNMP PDUs delivered to

the SNMP protocol for which the value of the error-status ﬁeld is tooBig.

InNoSuchNames The total number of SNMP PDUs delivered to

the SNMP protocol for which the value of the error-status ﬁeld is noSuchName.

InBadValues The total number of SNMP PDUs delivered to

the SNMP protocol for which the value of the error-status ﬁeld is badValue.

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InReadOnlys The total number of SNMP PDUs delivered to

the SNMP protocol for which the value of the error-status ﬁeld is readOnly. It is a protocol error to generate an SNMP PDU containing the value "readOnly" in the error-status ﬁeld. This object is provided to detect incorrect implementations of the SNMP.

InGenErrs The total number of SNMP PDUs delivered to

the SNMP protocol for which the value of the error-status ﬁeld is genErr.

—End—

IP tab

The IP tab shows read-only information about the IP packets that have interfaced with the switch

To view the IP tab, follow this procedure:

Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen opens.

Select the IP tab. This tab is demonstrated in the following illustration.

Graph Chassis screen - IP tab

The following table outlines the ﬁelds on this tab.

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IP tab ﬁelds

Field Description

InReceives The total number of input datagrams received from

interfaces, including those received in error.

InHdrErrors The number of input datagrams discarded due to

errors in their IP headers, including bad checksums, version number mismatch, other format errors, time-to-live exceeded, errors discovered in processing their IP options.

InAddrErrors The number of input datagrams discarded because

the IP address in the IP header destination ﬁeld was not a valid address. This count includes invalid addresses (for example, 0.0.0.0) and addresses of unsupported Classes (for example, Class E). For addresses that are not IP Gateways and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address.

ForwDatagrams The number of input datagrams for which this entity

was not their ﬁnal IP destination, as a result of which an attempt was made to ﬁnd a route to forward them to that ﬁnal destination. For addresses that do not act as IP Gateways, this counter includes only those packets that were Source-Routed by way of this address and had successful Source-Route option processing.

InUnknownProtos The number of locally addressed datagrams received

successfully but discarded because of an unknown or unsupported protocol.

InDiscards The number of input IP datagrams for which no

problems were encountered to prevent their continued processing but that were discarded (for example, for lack of buffer space). Note that this counter does not include any datagrams discarded while awaiting reassembly.

InDelivers The total number of input datagrams successfully

delivered to IP user-protocols (including ICMP).

OutRequests The total number of IP datagrams that local IP

user-protocols (including ICMP) supplied to IP in requests for transmission. Note that this counter does not include any datagrams counted in ipForwDatagrams.

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Field Description

OutDiscards The number of output IP datagrams for which

no problem was encountered to prevent their transmission to their destination, but that were discarded (for example, for lack of buffer space). Note that this counter would include datagrams counted in ipForwDatagrams if any such packets met this (discretionary) discard criterion.

OutNoRoutes The number of IP datagrams discarded because

no route could be found to transmit them to their destination. Note that this counter includes any packets counted in ipForwDatagrams that meet this no-route criterion. Note that this includes any datagrams a host cannot route because all of its default gateways are down.

FragOKs The number of IP datagrams that have been

successfully fragmented at this entity.

FragFails The number of IP datagrams that have been discarded

because they needed to be fragmented at this entity but could not be, for example, because their Don’t Fragment ﬂag was set.

FragCreates The number of IP datagram fragments that have been

generated as a result of fragmentation at this entity.

ReasmReqds The number of IP fragments received that needed to

be reassembled at this entity.

ReasmOKs The number of IP datagrams successfully

reassembled.

ReasmFails The number of failures detected by the IP reassembly

algorithm (for whatever reason: timed out, errors, and so on). Note that this is not necessarily a count of discarded IP fragments because some algorithms (notably the algorithm in RFC 815) can lose track of the number of fragments by combining them as they are received.

—End—

ICMP In tab

The ICMP In tab provides read-only information about inbound ICMP messages.

To view the ICMP In tab, follow this procedure:

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Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen opens.

Select the ICMP In tab. This tab is illustrated below.

Graph Chassis screen - ICMP In tab

The following table describes the ﬁelds on this tab.

ICMP In tab ﬁelds

Field Description

SrcQuenchs The number of ICMP Source Quench messages

received. Redirects The number of ICMP Redirect messages received. Echos The number of ICMP Echo (request) messages

received. EchoReps The number of ICMP Echo Reply messages received. Timestamps The number of ICMP Timestamp (request) messages

received. TimestampReps The number of ICMP Timestamp Reply messages

received. AddrMasks The number of ICMP Address Mask Request

messages received. AddrMaskReps The number of ICMP Address Mask Reply messages

received. ParmProbs The number of ICMP Parameter Problem messages

received.

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Field Description

DestUnreachs The number of ICMP Destination Unreachable

messages received. TimeExcds The number of ICMP Time Exceeded messages

received.

—End—

ICMP Out tab

The ICMP Out tab provides read-only information about outbound ICMP messages.

To view the ICMP Out tab, follow this procedure:

Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen will open.

Select the ICMP Out tab. This tab is illustrated below.

Graph Chassis screen - ICMP Out tab

The following table describes the ﬁelds on this tab.

ICMP Out tab ﬁelds

Field Description

SrcQuenchs The number of ICMP Source Quench messages sent. Redirects The number of ICMP Redirect messages received. For a

host, this object will always be zero, because hosts do not send redirects.

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Field Description

Echos The number of ICMP Echo (request) messages sent. EchoReps The number of ICMP Echo Reply messages sent. Timestamps The number of ICMP Timestamp (request) messages

sent. TimestampRepsThe number of ICMP Timestamp Reply messages sent. AddrMasks The number of ICMP Address Mask Request messages

sent. AddrMaskRepsThe number of ICMP Address Mask Reply messages

sent. ParmProbs The number of ICMP Parameter Problem messages sent. DestUnreachs The number of ICMP Destination Unreachable messages

sent. TimeExcds The number of ICMP Time Exceeded messages sent.

—End—

TCP tab

The TCP tab provides read-only information about TCP activity on the switch.

To view the TCP tab, follow this procedure:

Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen will open.

Select the TCP tab. This tab is illustrated below.

Graph Chassis screen - TCP tab

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The following table describes the ﬁelds on this tab.

TCP tab ﬁelds

Field Description

ActiveOpens The number of times TCP connections have made

a direct transition to the SYN-SENT state from the CLOSED state.

PassiveOpens The number of times TCP connections have made

a direct transition to the SYN-RCVD state from the LISTEN state.

AttemptFails The number of times TCP connections have made a

direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state.

EstabResets The number of times TCP connections have made a

direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.

CurrEstab The number of TCP connections for which the current

state is either ESTABLISHED or CLOSE-WAIT.

InSegs The total number of segments received, including

those received in error. This count includes segments received on currently established connections.

OutSegs The total number of segments sent, including those

on current connections but excluding those containing only retransmitted octets.

RetransSegs The total number of segments retransmitted -- that is,

the number of TCP segments transmitted containing one or more previously transmitted octets.

InErrs The total number of segments received in error (for

example, bad TCP checksums).

OutRsts The number of TCP segments sent containing the

RST ﬂag.

—End—

UDP tab

The UDP tab provides read-only information about UDP activity on the switch.

To view the UDP tab, follow this procedure:

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Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen opens.

Select the UDP tab. This tab is illustrated below.

Graph Chassis screen - UDP tab

3 The following table describes the ﬁelds on this tab.

UDP tab ﬁelds

Field Description

InDatagrams The total number of UDP datagrams delivered to

UDP users

NoPorts The total number of received UDP datagrams for

which there was no application at the destination port.

InErrors The number of received UDP datagrams that

could not be delivered for reasons other than the lack of an application at the destination port.

OutDatagrams The total number of UDP datagrams sent from

this entity.

—End—

OSPF tab

The OSPF tab is used to display statistical information about OSPF operation on the switch.

To view the OSPF tab, use the following procedure:

Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen opens.

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Select the OSPF tab. This tab is illustrated below.

Graph Chassis screen - OSPF tab

Use the provided ﬁelds to view the OSPF statistics. These ﬁelds are outlined in the following table.

OSPF tab ﬁelds

Field Description

LsdbTblSize Indicates the number of entries in the link state

database.

TxPackets Indicates the number of packets transmitted by

OSPF.

RxPackets Indicates the number of packets received by

OSPF.

RxBadPackets Indicates the number of bad packets received

by OSPF.

SpfRuns Indicates the total number of SPF calculations

performed by OSPF.

BuffersAllocated Indicates the total number of buffers allocated

by OSPF.

BuffersFreed Indicates the total number of buffers freed by

OSPF.

BufferAllocFailures Indicates the number of times that OSPF has

failed to allocate buffers.

BufferFreeFailures Indicates the number of times that OSPF has

failed to free buffers.

—End—

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VRRP tab

The VRRP tab is used to display statistical information about VRRP operation on the switch.

To view the VRRP tab, use the following procedure:

Step Action 1

Open the Graph Chassis screen by selecting Graph > Chassis from the menu. The Graph Chassis screen opens.

Select the VRRP tab. This tab is illustrated below.

Graph Chassis screen - VRRP tab

Use the provided ﬁelds to view the VRRP statistics. These ﬁelds are outlined in the following table.

Graph Chassis screen - VRRP tab

Field Description

RouterChecksumErrors The total number of VRRP packets received with

an invalid VRRP checksum value.

RouterVersionErrors The total number of VRRP packets received with

an unknown or unsupported version number.

RouterVrIdErrors The total number of VRRP packets received with

an invalid VRID for this virtual router."

—End—

Graphing switch port data

The Java Device Manager (JDM) provides the ability to view port statistical information in a variety of graphs.

To make use of these capabilities, open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. This screen is illustrated below.

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Graph Port screen

The following sections describe the informational tabs on this screen and what type of data each represents. Refer to "Creating a graph" (page 69) for the procedure to graph this data.

Note: Some statistics are only available when a single port is graphed.

Interface tab

The Interface tab displays read-only information about the selected interfaces.

To view the Interface tab, follow this procedure:

Step Action 1 Open the Graph Port screen by selecting one or multiple ports on

the Device View and then selecting Graph > Port from the menu.

Select the Interface tab. This tab is illustrated below.

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Graph Port screen - Interface tab

3 The following table describes the ﬁelds on this tab.

Interface tab ﬁelds

Field Description

InOctets The total number of octets received on the

interface, including framing characters.

OutOctets The total number of octets transmitted out of the

interface, including framing characters.

InUcastPkts The number of packets delivered by this sublayer

to a higher sublayer that were not addressed to a multicast or broadcast address at this sublayer.

OutUcastPkts The number of packets that higher-level protocols

requested be transmitted that were not addressed to a multicast address at this sublayer. This total number includes those packets discarded or unsent.

InNUcastPkts The number of packets delivered by this sublayer

to a higher (sub)layer, which were addressed to a multicast or broadcast address at this sublayer.

OutNUcastPkts The total number of packets that higher-level

protocols requested be transmitted, and which were addressed to a multicast or broadcast address at this sublayer, including those that were discarded or not sent.

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Field Description

InDiscards The number of inbound packets that were chosen

to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol. One possible reason for discarding such a packet could be to free up buffer space.

OutDiscards The number of outbound packets which were

chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

InErrors For packet-oriented interfaces, the number of

inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or ﬁxed-length interfaces, the number of inbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol.

OutErrors For packet-oriented interfaces, the number of

outbound packets that could not be transmitted because of errors. For character-oriented or ﬁxed-length interfaces, the number of outbound transmission units that could not be transmitted because of errors.

InUnknownProtos For packet-oriented interfaces, the number of

packets received via the interface that were discarded because of an unknown or unsupported protocol. For character-oriented or ﬁxed-length interfaces that support protocol multiplexing, the number of transmission units received via the interface that were discarded because of an unknown or unsupported protocol. For any interface that does not support protocol multiplexing, this counter will always be 0.

—End—

Ethernet Errors tab

The Ethernet Errors tab displays read-only information about port Ethernet error statistics.

To view the Ethernet Errors tab, follow this procedure:

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Step Action 1

Open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. The Graph Port screen opens.

2 Select the Ethernet Errors tab. This tab is illustrated below.

Graph Port screen - Ethernet Errors tab

The following table describes the ﬁelds on this tab.

Ethernet Errors tab ﬁelds

Field Description

AlignmentErrors A count of frames received on a particular

interface that are not an integral number of octets in length and do not pass the FCS check. The count represented by an instance of this object is incremented when the alignmentError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions occur are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

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Field Description

FCSErrors A count of frames received on a particular

interface that are an integral number of octets in length but do not pass the FCS check. The count represented by an instance of this object is incremented when the frameCheckError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions occur are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

InternalMacTransmitErrorsA count of frames for which transmission on a

particular interface fails due to an internal MAC sublayer transmit error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the LateCollisions object, the ExcessiveCollisions object, or the CarrierSenseErrors object.

InternalMacReceiveErrorsA count of frames for which reception on a

particular interface fails due to an internal MAC sublayer receive error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the FrameTooLongs object, the AlignmentErrors object, or the FCSErrors object.

The precise meaning of the count represented by an instance of this object is implementation speciﬁc. In particular, an instance of this object may represent a count of receive errors on a particular interface that are not otherwise counted.

CarrierSenseErrors The number of times that the carrier sense

condition was lost or never asserted when attempting to transmit a frame on a particular interface. The count represented by an instance of this object is incremented at most once per transmission attempt, even if the carrier sense condition ﬂuctuates during a transmission attempt.

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Field Description

FrameTooLongs A count of frames received on a particular interface

that exceed the maximum permitted frame size. The count represented by an instance of this object is incremented when the frameTooLong status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions occur are, according to the conventionsof IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

SQETestErrors A count of times that the SQE TEST ERROR

message is generated by the PLS sublayer for a particular interface. The SQE TEST ERROR message is deﬁned in section 7.2.2.2.4 of ANSI/IEEE 802.3-1985 and its generation is described in section 7.2.4.6 of the same document.

DeferredTransmissionsA count of frames for which the ﬁrst transmission

attempt on a particular interface is delayed because the medium is busy. The count represented by an instance of this object does not include frames involved in collisions.

SingleCollisionFramesA count of successfully transmitted frames on

a particular interface for which transmission is inhibited by exactly one collision. A frame that is counted by an instance of this object is also counted by the corresponding instance of either the ifOutUcastPkts, ifOutMulticastPkts, or ifOutBroadcastPkts, and is not counted by the corresponding instance of the MultipleCollisionFrames object.

MultipleCollisionFramesA count of successfully transmitted frames on

a particular interface for which transmission is inhibited by more than one collision. A frame that is counted by an instance of this object is also counted by the corresponding instance of either the ifOutUcastPkts, ifOutMulticastPkts, or ifOutBroadcastPkts, and is not counted by the corresponding instance of the SingleCollisionFrames object.

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Field Description

LateCollisions The number of times that a collision is detected on

a particular interface later than 512 bit-times into the transmission of a packet. Five hundred and twelve bit-times corresponds to 51.2 microseconds on a 10 Mb/s system. A (late) collision included in a count represented by an instance of this object is also considered as a (generic) collision for purposes of other collision-related statistics.

ExcessiveCollisions A count of frames for which transmission on a

particular interface fails due to excessivecollisions.

—End—

Bridge tab

The Bridge tab displays read-only information about port frame statistics. To view the Bridge tab, follow this procedure:

Step Action 1

Open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. The Graph Port screen will open.

Select the Bridge tab. This tab is illustrated below.

Graph Port screen - Bridge tab

The following table describes the ﬁelds on this tab.

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Bridge tab ﬁelds

Field Description

DelayExceededDiscards Number of frames discarded by the port

due to excessive transit delays through the bridge. It is incremented by both transparent and source route bridges.

MtuExceededDiscards Number of frames discarded by the port

due to an excessive size. It is incremented by both transparent and source route bridges.

InFrames The number of frames that have been

received by this port from its segment.

OutFrames The number of frames that have been

received by this port from its segment.

InDiscards Count of valid frames received which were

discarded (ﬁltered) by the Forwarding Process.

—End—

Rmon tab

The Rmon tab displays read-only remote monitoring statistics. To view the Rmon tab, follow this procedure:

Step Action 1

Open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. The Graph Port screen opens.

Select the Rmon tab. This tab is illustrated below.

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Graph Port screen - Rmon tab

The following table describes the ﬁelds on this tab.

RMON tab ﬁelds

Field Description

Octets The total number of octets of data (including those

in bad packets) received on the network (excluding framing bits but including FCS octets). You can use this object as a reasonable estimate of Ethernet utilization. For greater precision, sample the etherStatsPkts and etherStatsOctets objects before and after a common interval.

Pkts The total number of packets (including bad

packets,broadcastpackets,andmulticastpackets) received.

BroadcastPkts The total number of good packets received that

were directed to the broadcast address. Note that this does not include multicast packets.

MulticastPkts The total number of good packets received that

were directed to a multicast address. Note that this number does not include packets directed to the broadcast address.

CRCAlignErrors The total number of packets received that had a

length (excluding framing bits, but including FCS octets) of between 64 and 1518 octets, inclusive, but had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a nonintegral number of octets (Alignment Error).

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Field Description

UndersizePkts The total number of packets received that were

less than 64 octets long (excluding framing bits but including FCS octets) and were otherwise well formed.

OversizePkts The total number of packets received that were

longer than 1518 octets (excluding framing bits but including FCS octets) and were otherwise well formed.

Fragments The total number of packets received that were

less than 64 octets in length (excluding framing bits but including FCS octets) and had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a nonintegral number of octets (Alignment Error). It is entirely normal for etherStatsFragments to increment because it counts both runts (which are normal occurrences due to collisions) and noise hits.

Collisions The best estimate of the total number of collisions

on this Ethernet segment.

Jabbers The total number of packets received that were

longer than 1518 octets (excluding framing bits, but including FCS octets), and had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error). Jabber is deﬁned as the condition where any packet exceeds 20 ms. The allowed range to detect jabber is between 20 ms and 150 ms.

1..64

The total number of packets (including bad packets) received that were between 1 and 64 octets in length (excluding framing bits but including FCS octets).

65..127

The total number of packets (including bad packets) received that were between 65 and 127 octets in length (excluding framing bits but including FCS octets).

128..255

The total number of packets (including bad packets) received that were between 128 and 255 octets in length (excluding framing bits but including FCS octets).

256..511

The total number of packets (including bad packets) received that were between 256 and 511 octets in length (excluding framing bits but including FCS octets).

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Field Description

511..1023

The total number of packets (including bad packets) received that were between 511 and 1023 octets in length (excluding framing bits but including FCS octets).

1024..1518

The total number of packets (including bad packets) received that were between 1024 and 1518 octets in length (excluding framing bits but including FCS octets).

—End—

EAPOL Stats tab

The EAPOL Stats tab displays read-only EAPOL statistics. To open the EAPOL Stats tab, follow this procedure:

Step Action 1 Open the Graph Port screen by selecting one or multiple ports on

the Device View and then selecting Graph > Port from the menu. The Graph Port screen opens.

Select the EAPOL Stats tab. This tab is illustrated below.

Graph Port screen - EAPOL Stats tab

The following table describes the ﬁelds on this tab.

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EAPOL Stats tab ﬁelds

Field Description

EapolFramesRx The number of valid EAPOL frames of

any type that have been received by this authenticator.

EapolFramesTx The number of EAPOL frame types of any

type that have been transmitted by this authenticator.

EapolStartFramesRx The number of EAPOL start frames that

have been received by this authenticator.

EapolLogoffFramesRx The number of EAPOL Logoff frames that

have been received by this authenticator.

EapolRespIdFramesRx The number of EAPOL Resp/Id frames that

have been received by this authenticator.

EapolRespFramesRx The number of valid EAP Response frames

(other than Resp/Id frames) that have been received by this authenticator.

EapolReqIdFramesTx The number of EAPOL Req/Id frames that

havebeentransmittedbythisauthenticator.

EapolReqFramesTx The number of EAP Req/Id frames

(Other than Rq/Id frames) that have been transmitted by this authenticator.

InvalidEapolFramesRx The number of EAPOL frames that have

been received by this authenticator in which the frame type is not recognized.

EapLengthErrorFramesRx The number of EAPOL frames that have

been received by this authenticator in which the packet body length ﬁeld is not valid.

—End—

EAPOL Diag tab

The EAPOL Diag tab displays read-only EAPOL diagnostic statistics. To open the EAPOL Diag tab, follow this procedure:

Step Action 1

Open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. The Graph Port screen opens.

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Select the EAPOL Diag tab. This tab is illustrated below.

Graph Port screen - EAPOL Diag tab

The following table describes the ﬁelds on this tab.

EAPOL Diag tab ﬁelds

Field Description

EntersConnecting Counts the number of times that the

Authenticator PAE state machine transitions to the Connecting state from any other state.

EapLogoffsWhileConnecting Counts the number of times that the

Authenticator PAE state machine transitions from Connected to Disconnected as a result of receiving an EAPOL-Logoff message.

EntersAuthenticating Counts the number of times that the

Authenticator PAE state machine transitions from Connecting to Authenticating as a result of receiving an EAP-Response/Identity message from the supplicant.

AuthSuccessWhileAuthenticatingCounts the number of times that the

Authenticator PAE state machine transitions from Authenticating to Authenticated as a result of the Backend authentication state machine indicating successful authentication of the supplicant.

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Field Description

AuthTimeoutsWhile Authenticating

Counts the number of times that the Authenticator PAE state machine transitions from Authenticating to Aborting as a result of the Backend authentication state machine indicating authentication timeout.

AuthFailWhileAuthenticating Counts the number of times that the

Authenticator PAE state machine transitions from Authenticating to Held as a result of the Backend authentication state machine indicating authentication failure.

AuthReauthsWhileAuthenticatingCounts the number of times that the

Authenticator PAE state machine transitions from Authenticating to Aborting as a result of a reauthentication request.

AuthEapStartsWhileAuthenticatingCounts the number of times that the

Authenticator PAE state machine transitions from Authenticating to Aborting as a result of an EAPOL-Start message being received from the supplicant.

AuthEapLogoffWhileAuthenticatingCounts the number of times that the

Authenticator PAE state machine transitions from Authenticating to Aborting as a result of an EAPOL-Logoff message being received from the supplicant.

AuthReauthsWhileAuthenticatedCounts the number of times that the

Authenticator PAE state machine transitions from Authenticated to Connecting as a result of a reauthentication request.

AuthEapStartsWhileAuthenticatedCounts the number of times that the

Authenticator PAE state machine transitions from Authenticated to Connecting as a result of an EAPOL-Start message being received from the supplicant.

AuthEapLogoffWhileAuthenticatedCounts the number of times that the

Authenticator PAE state machine transitions from Authenticated to Disconnected as a result of an EAPOL-Logoff message being received from the supplicant.

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Field Description

BackendResponses Counts the number of times that the

Backend Authentication state machine sends an Initial-Access request packet to the Authentication server.

BackendAccessChallenges Counts the number of times that the

Backend Authentication state machine receives an Initial-Access challenge packet from the Authentication server.

BackendOtherRequestsToSupplicantCounts the number of times that the

Backend Authentication state machine sends an EAP request packet (other than an Identity, Notiﬁcation, failure, or success message) to the supplicant.

BackendNonNakResponsesFromSupplicantCounts the number of times that the

Backend Authentication state machine receives a response from the supplicant to an initial EAP request and the response is something other than EAP-NAK.

BackendAuthSuccesses Counts the number of times that the

Backend Authentication state machine receives an EAP-success message from the Authentication server.

BackendAuthFails Counts the number of times that the

Backend Authentication state machine receives an EAP-failure message from the Authentication server.

—End—

LACP tab

The LACP tab displays read-only Link Aggregation Control Protocol (LACP) diagnostic statistics.

To view the LACP tab, follow this procedure:

Step Action 1

Open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. The Graph Port screen opens.

Select the LACP tab. This tab is illustrated below.

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Graph Port screen - LACP tab

Note: The Marker Protocol Generator/Receiver is currently not a supported feature.

The following table describes the ﬁelds on this tab.

LACP tab ﬁelds

Field Description

LACPDUsRX Denotes the number of valid LACPDUs received

on this Aggregation Port. This value is read-only.

MarkerPDUsRX Signiﬁes the number of valid Marker PDUs

received on this Aggregation Port. This value is read-only.

MarkerResponsePDUsRXThe number of valid Marker Response PDUs

received on this Aggregation Port. This value is read-only.

UnknownRX Indicates the number of frames received that can

•

Carry the Slow Protocols Ethernet Type value (43B.4), but contain an unknown PDU.

•

Are addressed to the Slow Protocols group MAC Address (43B.3), but do not carry the Slow Protocols Ethernet Type.

This value is read-only.

IllegalRX Denotes the number of frames received that carry

the Slow Protocols Ethernet Type value (43B.4), but contain a badly formed PDU or an illegal value of Protocol Subtype (43B.4). This value is read-only.

LACPDUsTX Signiﬁes the number of LACPDUs that are

transmitted on this Aggregation Port. This value is read-only.

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Field Description

MarkerPDUsTX Displays the number of Marker PDUs transmitted

on this Aggregation Port. This value is read-only.

MarkerResponsePDUsTXIndicates the number of Marker Response PDUs

that are transmitted on this Aggregation Port. This value is read-only.

—End—

Misc tab

The Misc tab is used to display statistical information that does not belong grouped with the other tabs. To view the Misc tab, follow this procedure:

Step Action 1

Open the Graph Port screen by selecting one or multiple ports on the Device View and then selecting Graph > Port from the menu. The Graph Port screen opens.

Select the Misc tab. This tab is illustrated below.

Graph Port dialog - Misc tab

3 Using the ﬁelds provided, view the statistical information. These

ﬁelds are outlined in the following table.

Misc tab ﬁelds

Field Description

NoResourcesPktsDroppedThe number of packets dropped due to a lack

of resources.

—End—

Graphing multilink trunk statistics

The Java Device Manager (JDM) provides the ability to view Multilink Trunk (MLT) statistical information in a variety of graphs.

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To make use of these capabilities, open the MLT_LACP screen by selecting

VLAN > MLT/LACP from the menu. This screen opens with the Multilink Trunks tab selected. On this tab, select the row that represents the MLT to

graph and click the Graph button. The MLT Statistics screen opens. This screen is illustrated in "MLT Statistics screen" (page 62).

MLT Statistics screen

The following sections will describe the informational tabs on this screen and the type of data each represents. Refer to "Creating a graph" (page

69) for the procedure to graph this data.

Interface tab

The Interface tab provides read-only statistical information about the selected Multilink Trunk.

To view the Interface tab, follow this procedure:

Step Action 1 Open the MLT_LACP screen by selecting VLAN > MLT/LACP from

the menu. This screen opens with the Multilink Trunkstab selected.

On this tab, select the row that represents the MLT to graph and click the Graph button. The MLT Statistics screen opens with the Interface tab selected. This screen and tab are illustrated below.

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MLT Statistics screen - Interface tab

The following table describes the ﬁelds on this tab.

Interface tab ﬁelds

Field Description

InMulticastPkt The number of packets delivered to this MLT that

were addressed to a multicast address at this sublayer. For a MAC layer protocol, this number includes both Group and Functional addresses.

OutMulticast The total number of packets that higher-level

protocols requested be transmitted, and that were addressed to a multicast address at this MLT, including those that were discarded or not sent. For a MAC layer protocol, this number includes both Group and Functional addresses.

InBroadcastPkt The number of packets delivered to this MLT that

were addressed to a broadcast address at this sublayer.

OutBroadcast The total number of packets that higher-level

protocols requested be transmitted, and that were addressed to a broadcast address at this MLT, including those that were discarded or not sent.

HCInOctets The total number of octets received on the MLT

interface, including framing characters.

HCOutOctets The total number of octets transmitted out of the

MLT interface, including framing characters.

HCInUcastPkts The number of packets delivered by this MLT to

higher level protocols that were not addressed to a multicast or broadcast address at this sublayer.

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Field Description

HCOutUcastPkts The number of packets that higher-level protocols

requested be transmitted that were not addressed to a multicast address at this MLT. This total number includes those packets discarded or unsent.

HCInMulticastPkt The number of packets delivered to this MLT that

were addressed to a multicast address at this sublayer. For a MAC layer protocol, this number includes both Group and Functional addresses.

HCOutMulticast The total number of packets that higher-level

HCInBroadcastPkt The number of packets delivered to this MLT that

were addressed to a broadcast address at this sublayer.

HCOutBroadcast The total number of packets that higher-level

protocols requested be transmitted, and that were addressed to a broadcast address at this MLT, including those that were discarded or not sent.

—End—

Ethernet Errors tab

The Ethernet Errors tab provides read-only statistical information about Ethernet errors that have occurred on the selected Multilink Trunk.

To view the Ethernet Errors tab, follow this procedure:

Step Action 1

Open the MLT_LACP screen by selecting VLAN > MLT/LACP from the menu. This screen will open with the Multilink Trunks tab selected.

On this tab, select the row that represents the MLT to graph and click the Graph button. The MLT Statistics screen will open.

Select the Ethernet Errors tab. This tab is illustrated below.

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MLT Statistics screen - Ethernet Errors tab

The following table describes the ﬁelds on this tab.

Ethernet Errors tab ﬁelds

Field Description

AlignmentErrors A count of frames received on a particular

MLT that are not an integral number of octets in length and do not pass the FCS check. The count represented by an instance of this object is incremented when the alignmentError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions occur are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

FCSErrors A count of frames received on an MLT that

are an integral number of octets in length but do not pass the FCS check. The count represented by an instance of this object is incremented when the frameCheckError status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions occur are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

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Field Description

IMacTransmitError A count of frames for which transmission

on a particular MLT fails due to an internal MAC sublayer transmit error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the LateCollisions object, the ExcessiveCollisions object, or the CarrierSenseErrors object.

IMacReceiveError A count of frames for which reception on a

particular MLT fails due to an internal MAC sublayer receive error. A frame is only counted by an instance of this object if it is not counted by the corresponding instance of either the FrameTooLongs object, the AlignmentErrors object, or the FCSErrors object.

CarrierSenseErrors The number of times that the carrier

sense condition was lost or never asserted when attempting to transmit a frame on a particular MLT. The count represented by an instance of this object is incremented at most once per transmission attempt, even if the carrier sense condition ﬂuctuates during a transmission attempt.

FrameTooLong A count of frames received on a particular

MLT that exceed the maximum permitted frame size. The count represented by an instance of this object is incremented when the frameTooLong status is returned by the MAC service to the LLC (or other MAC user). Received frames for which multiple error conditions occur are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

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Field Description

SQETestError A count of times that the SQE TEST

ERROR message is generated by the PLS sublayer for a particular MLT. The SQE TEST ERROR message is deﬁned in section 7.2.2.2.4 of ANSI/IEEE 802.3-1985 and its generation is described in section

7.2.4.6 of the same document.

DeferredTransmiss A count of frames for which the ﬁrst

transmission attempt on a particular MLTis delayed because the medium is busy. The count represented by an instance of this object does not include frames involved in collisions.

SingleCollFrames A count of successfully transmitted frames

on a particular MLT for which transmission is inhibited by exactly one collision. A frame that is counted by an instance of this object is also counted bythe corresponding instance of either the ifOutUcastPkts, ifOutMulticastPkts, or ifOutBroadcastPkts, and is not counted by the corresponding instance of the MultipleCollisionFrames object.

MultipleCollFrames A count of successfully transmitted frames

on a particular MLT for which transmission is inhibited by more than one collision. A frame that is counted by an instance of this object is also counted bythe corresponding instance of either the ifOutUcastPkts, ifOutMulticastPkts, or ifOutBroadcastPkts, and is not counted by the corresponding instance of the SingleCollisionFrames object.

LateCollisions The number of times that a collision is

detected on a particular MLT later than 512 bit-times into the transmission of a packet. Five hundred and twelve bit-times corresponds to 51.2 microseconds on a 10 Mb/s system. A (late) collision included in a count represented by an instance of this object is also considered as a (generic) collision for purposes of other collision-related statistics.

ExcessiveColls A count of frames for which transmission

on a particular MLT fails due to excessive collisions.

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—End—

Graphing VLAN DHCP statistics

To create a graph of VLAN DHCP conﬁguration, follow this procedure:

Step Action 1

Open the VLANs screen by selecting VLAN > VLANs from the menu.

Select the desired VLAN.

Click IP. The IP VLAN screen opens with the IP Address tab selected.

Click the DHCP tab.

Click Graph. The DHCP Stats screen opens. This screen is illustrated in below.

DHCP Stats screen

Highlight the required data and clickon the type of graph to produce. For a detailed explanation of graph creation, refer to "Creating a

graph" (page 69).

The following table explains the ﬁelds found on this screen.

DHCP Stats screen ﬁelds

Field Description

NumRequests The number of DHCP requests handled. NumReplies The number of DHCP replies handled.

—End—

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Creating a graph

Several screens in the Java Device Manager (JDM) provide a means to view and make use of statistical information gathered by the switch. To turn this statistical information in either a bar, line, area, or pie graph, follow this procedure:

Step Action 1

After opening a screen that provides graphing capabilities and selecting the desired tab, select the information to graph in one of the following ways:

a. Click and drag the mouse across the rows and columns of data

to graph.

b. Hold the Control (CTRL) key and click on the cells of data to

graph.

c. Hold the Shift key and click a range of data to graph.

Press the graph button that corresponds to the type of graph to be created. These graph buttons are illustrated below.

Graph buttons

—End—

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Chapter 2 System Diagnostics and Statistics

This chapter outlines the system diagnostic and statistical information and tools available in the Nortel Ethernet Routing Switch 5500 Series.

Use commands in this chapter to get statistics and diagnose problems. Some are available in both the CLI and in the Web-based Management interface.

•

"Port statistics (CLI)" (page 71)

•

"Stack loopback tests" (page 73)

•

"Viewing port statistics (Web)" (page 77)

•

"Viewing all port errors" (page 79)

•

"Viewing interface statistics" (page 80)

•

"Viewing Ethernet error statistics" (page 82)

•

"Viewing transparent bridging statistics" (page 85)

•

"Monitoring MLT trafﬁc" (page 87)

Diagnostic information in the CLI

The CLI commands detailed in this section are used to display diagnostic and statistical information from the switch.

Port statistics (CLI)

Use the CLI commands in this section to gather port statistics from the switch.

•

"show port-statistics command" (page 72)

•

"clear-stats command" (page 72)

•

"show stack port-statistics command" (page 72)

•

"clear stack port-statistics command" (page 73)

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show port-statistics command

The show port-statistics command displays the statistics for the port on both received and transmitted trafﬁc, including the 10 GByte ports (ports 25 and 26) on the 5530.

The syntax for the show port-statistics command is:

show port-statistics [port <portlist>]

The show port-statistics command is executed in the Privileged EXEC command mode.

"show port-statistics parameters" (page 72) outlines the parameters for

this command.

show port-statistics parameters

Parameter Description

port <portlist> The ports to display statistics for. When no port

list is speciﬁed, all ports are shown.

show port-statistics examples

show port-statistics 12

clear-stats command

The clear-stats command clears all statistical information for the speciﬁed port. All counters are set to zero (0).

The syntax for the clear-stats command is:

clear-stats [port <portlist>]

"clear-stats parameters" (page 72) outlines the parameters for this

command.

clear-stats parameters

Parameter Description

port <portlist> The port(s) to clear statistics for. If no port

is speciﬁed, the system defaults to the port entered when entering the Interface Conﬁguration command mode.

show stack port-statistics command

The show stack port-statistics command displays port counters including congestion and dropped packets on stacks of ERS 5500 series switches.

The syntax for the show stack port-statistics command is:

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show stack port-statistics {down-stack|up-stack} [unit<1-8>]

where down-stack displays the statistics from the down stack port from the requested unit, and up-stack displays the statistics from the up stack port from the requested unit.

This show stack port-statistics command is available in the PrivExec mode.

clear stack port-statistics command

The clear stack port-statistics command clears the statistics counters.

The syntax for the clear stack port-statistics command is:

clear stack port-statistics {down-stack|up-stack} [unit <1-8>]

where down-stack clears the statistics from the down stack port from the requested unit, and up-stack clears the statistics from the up stack port from the requested unit.

The clear stack port-statistics command is available in the PrivExec mode.

Stack loopback tests

You can quickly test your stack ports and stack cable using the stack loopback test. This is very useful when you need to determine whether the source of the problem is a bad stack cable or a damaged stack port, and can help prevent unnecessarily sending switches for service.

There are two types of loopback tests. The internal loopback test veriﬁes that the stack ports are functional.

The external loopback test checks the stack cable to ﬁnd out if it is the source of the problem. The external loopback test is done by connecting the stack uplink port with the stack downlink port, sending a packet from the uplink port and verifying that the packet is received on the downlink port.

The internal test should always be run ﬁrst, because the cable tests won’t be conclusive until the stack ports are proven to be working correctly.

Testing the stack ports

Verify the operation of the stack ports using the internal loopback test.

Prerequisites for testing the stack ports

• Any previous tests have ﬁnished running.

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Step Action 1

Remove the unit you want to test from the stack.

Disconnect the stacking cables and any active cables connected to the ports on the unit.

Go to NNCLI via serial interface.

Enable action mode.

enable

Run the internal loopback test.

stack loopback-test internal

Check the results of the command. The "stack loopback-test internal

output" (page 74) table shows the output from a pass and from a

failure.

stack loopback-test internal output

Pass Fail

Testing uplink port … ok Testing downlink port … ok Internal loopback test PASSED

Testing uplink port … Failed Testing downlink port … ok Internal loopback test FAILED

—End—

Testing the stack cables

Verify the integrity of the stack cables using the external loopback test.

Prerequisites for testing stack cables

• The internal loopback test passed. See "Testing the stack ports" (page

73).

•

Any previous tests have ﬁnished running.

Step Action 1

Remove the suspect unit from the stack.

Power up the suspect unit.

Connect a stacking cable from the stack uplink port to the stack downlink port.

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Go to NNCLI via serial interface.

Enable action mode.

enable

Run the external loopback test.

stack loopback-test external

Check the results of the command. "stack loopback-test external

output" (page 75) shows the output from a pass and from a failure.

stack loopback-test external output

Pass Fail

External loopback test PASSED. External loopback test FAILED. Your stack cable

might be damaged.

—End—

Stack monitor

The Stack Monitor uses a set of control values to enable its operation, to set the expected stack size, and to control the frequency of trap sending. The stack monitor, if enabled, detects problems with the units in the stack and sends a trap.

The stack monitor sends a trap for the following events.

•

The number of units in stack changes.

•

The trap sending timer expires.

Each time the number of units in a stack changes, the trap sending timer resets and the stack monitor compares the current number of stack units with the conﬁgured number of stack units. If it is not equal, the switch sends a trap and logs a message to syslog. The stack monitor sends traps from a standalone unit or the base unit of the stack.

When the trap sending timer reaches the conﬁgured number of seconds at which traps are sent, the switch sends a trap and logs a message to syslog and restarts the trap sending timer. The syslog message is not repeated unless the stack conﬁguration changes. This prevents the log being ﬁlled with stack conﬁguration messages.

When you enable the stack monitor on a stack, the stack monitor captures current stack size and uses it as the expected stack size. You can choose a different value and set it after enabling the feature.

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Displaying stack monitor conﬁguration parameters values

Use the show stack-monitor command to display the current conﬁguration values for the stack monitor.

Parameter Description

Status Enabled or disabled. Stack size Number of units in the stack <2-8>. Default value is 2. Trap interval Number of seconds between traps <3-300>. Default value is 60

seconds if there are 2 units in the stack.

Conﬁguring stack monitor parameters

Use the config stack-monitor command to conﬁgure the stack monitor.

Conﬁguring stack monitor parameters

Parameter Description

enable/disable Enable or disable stack monitoring stack-size Set stack size to be monitored <2-8> trap-interval Set interval between traps (seconds) <3-300>

Conﬁguring stack monitor parameters with the JDM

To conﬁgure stack monitor parameters with the JDM, click Edit > Chassis > Stack Monitor.

Conﬁguring the stack monitor with the JDM

Conﬁguring stack monitor parameters

Parameter Description

StackErrorNotiﬁcationEnabled Enable or disable stack monitoring ExpectedStackSize Set stack size to be monitored <2-8> StackErrorNotiﬁcationInterval Set interval between traps (seconds) <3-300>

Click Apply to apply new settings.

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Diagnostic information in the Web-based Management Interface

The procedures detailed in this section enable the viewing of diagnostic and statistical information through the Web-based Management Interface.

Viewing port statistics (Web)

To view statistical data about a selected port, perform the following task:

Step Action 1

Open the Port Statistics screen by selecting Statistics > Port from the menu. This screen is illustrated below.

Port Statistics screen

Select a port from the Port list in the Port Statistics (View By) section.

Click Submit.

—End—

Port statistics are displayed in the Port Statistics Table section. The following table describes the ﬁelds in this section.

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Port Statistics Table ﬁelds

Field Description

Packets The number of packets received/transmitted

on this port, including bad packets, broadcast packets, and multicast packets.

Multicast The number of good multicast packets

received/transmitted on this port, excluding broadcast packets.

Broadcasts The number of good broadcast packets

received/transmitted on this port.

Total Octets The number of octets of data

received/transmitted on this port, including data in bad packets and FCS octets, and framing bits.

Pause Frames The number of pause frames

received/transmitted on this port.

FCS-Frame Errors The number of valid-size packets received on

this port with proper framing but discarded because of FCS or frame errors.

Undersized Packets The number of packets received on this port

with fewer than 64 bytes and with proper CRC and framing (also known as short frames or runts).

Oversized Packets The number of packets that were received on

this port with proper CRC and framing that meet the following requirements:

1518 bytes if no VLAN tag exists

1522 bytes if a VLAN tag exists

Filtered Packets The number of packets that were received on

this port and discarded because of the speciﬁc conﬁguration.This counter does not count the FCS/Frames error packets; they are counted in that counter. This counter counts packets discarded because STP is not set to forwarding, the frame setting in VLAN directs discarding, or

a mismatch in ingress/egress port speeds. Collisions The number of collisions detected on this port. Single Collisions The number of packets that were transmitted

successfully on this port after a single collision.

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Field Description

Multiple Collisions The number of packets that were transmitted

successfully on this port after more than one

collision. Excessive Collisions The number of packets lost on this port due to

excessive collisions. Late Collisions The number of packets collisions that occurred

after a total length of time that exceeded 512

bit-times of packet transmission. Deferred Packets The number of packets that were received

on this port that were delayed on the ﬁrst

transmission attempt, but never incurred a

collision. Packets

64 bytes 65-127 bytes 128-255 bytes 256-511 bytes 512-1023 bytes 1024-1518 bytes 1522-9216 bytes

The number of packets received/transmitted on

the port.

Three further options are available on this screen:

1. Click Update to refresh the statistical information.

2. Click Zero Port to reset the counters for the selected port.

3. Click Zero All Ports to reset the counters for all ports.

Viewing all port errors

To view a summary of the port errors, follow this procedure:

Step Action 1

Open the Port Error Summary screen by selecting Statistics > Port Error Summary from the menu. This screen is illustrated below.

Port Error Summary screen

The following table describes the ﬁelds on this screen.

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Port Error Summary ﬁelds

Field Description

Unit Displays the unit number in the stack. Port Displays the port number of the unit. Status Displays the status of the port (Enabled/Disabled). Link Displays the link status of the port (Up/Down). Speed/Duplex Displays the speed at which the port is operating,

as well as whether it is in half- or full-duplex mode.

FCS/Frame Errors Displays the number of frame check sequence

(FCS) and frame errors received on this port.

Collisions Displays the number of collisions errors received

on this port.

Single Collisions Displays the number of single collisions errors

received on this port.

Multiple Collisions Displays the number of multiple collisions errors

received on this port.

ExcessiveCollisions Displays the number of excessive collisions errors

received on this port.

Late Collisions Displays the number of late collisions errors

received on this port.

—End—

Click Update to refresh the statistical information.

Viewing interface statistics

To view statistical information for an interface, follow this procedure:

Step Action 1

Open the Interface Statistics screen by selecting Statistics > Interface from the menu. This screen is illustrated in the following

table.

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Interface Statistics screen

The following table describes the ﬁelds on this screen.

Interface Statistics screen

Field Description

Port The port number corresponding to the

selected switch.

In Octets The number of octets received on the

interface, including framing characters.

Out Octets The number of octets transmitted out of the

interface, including framing characters.

In Unicast The number of subnetwork-unicast packets

delivered to a higher-layer protocol.

Out Unicast The number of packets that higher-layer

protocols requested be transmitted to a subnetwork-unicast address, including those that were discarded or not sent.

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Field Description

In Non-Unicast The number of non-unicast packets,

for example, subnetwork-broadcast or subnetwork-multicast packets, delivered to a higher protocol.

Out Non-Unicast The number of packets that higher-level

protocols requested be transmitted to a non-unicast address. For example, a subnetwork-broadcast or a subnetwork multicast address, including those that were discarded or not sent.

In Discards The number of inbound packets which

were selected to be discarded even though no errors were detected to prevent their being delivered to a higher-layer protocol. Packet discarding is not arbitrary. One reason for discarding packets is to free buffer space.

Out Discards The number of outbound packets which

were selected to be discarded even though no errors were detected to prevent their being transmitted. Packet discarding is not arbitrary. One reason for discarding packets is to free buffer space.

In Errors The number of inbound packets that

contained errors preventing them from being deliverable to a higher-layer protocol.

Out Errors The number of outbound packets that

could not be transmitted because of errors.

In Unknown Protos The number of packets received through

the interface that were discarded because of an unknown or unsupported protocol.

—End—

Click Update to refresh the statistical information.

Viewing Ethernet error statistics

To view Ethernet error statistics, follow this procedure:

Step Action 1

Open the Ethernet Errors screen by selecting Statistics > Ethernet Errors from the menu. This screen is illustrated in the following table.

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Ethernet Errors screen

The following table outlines the ﬁelds on this screen.

Ethernet Error ﬁelds

Field Description

Port The port number corresponding to the

selected switch.

FCS/Frame Errors The number of frames received on a

particular interface that are an integral number of octets in length, but do not pass the FCS check or have frame errors.

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Field Description

Internal MAC Transmit Errors

The number of frames for which transmission on a particular interface fails because of an internal MAC sublayer transmit error. A frame only is counted by an instance of this object if it is not counted by the corresponding instance of either the dot3StatsLateCollisions object, the dot3StatsExcessiveCollisions object, or the dot3StatsCarrierSenseErrors object.

Internal MAC Receive Errors

The number of frames for which reception on a particular interface fails because of an internal MAC sublayer transmit error. A frame only is counted by an instance of this object if it is not counted by the corresponding instance of either the dot3StatsLateCollisions object, the dot3StatsExcessiveCollisions object, or the dot3StatsCarrierSenseErrors object.

Carrier Sense Errors The number of times that the carrier sense

conditions was lost or never asserted when attempting to transmit a frame on a particular interface.

SQE Test Errors The number of times that the SQE TEST

ERROR message is generated by the PLS sublayer for a particular interface. The SQE TEST ERROR is deﬁned in section

7.2.2.2.4 of ANSI/IEEE 802.3-1985, and its generation is described in section 7.2.4.6 of the same document.

Deferred Transmissions The number of frames for which the

ﬁrst transmission attempt on a particular interface is delayed because the medium is busy.

Single Collision Frames The number of successfully transmitted

frames on a particular interface for which transmission is inhibited by more than one collision.

Multiple Collision Frames The number of successfully transmitted

frames on a particular interface for which transmission is inhibited by a single collision.

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Field Description

Late Collisions The number of times a collision is detected

on a particular interface later than 512 bit-times into the transmission of a packet.

Excessive Collisions The number of frames for which

transmission on a particular interface fails due to excessive collisions.

—End—

Click Update to refresh the statistical information.

Viewing transparent bridging statistics

To view transparent bridging statistics, follow this procedure:

Step Action 1

Open the Transparent Bridging screen by selecting Statistics > Transparent Bridging from the menu. This screen is illustrated

below.

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Transparent Bridging screen

The following table describes the ﬁelds on this screen.

Transparent Bridging screen

Field Description

Port The port number that corresponds to the

selected switch.

In Frames (dot1dTpPortInFrames)

The number of frames that have been received by this port from its segment. A frame received on the interface corresponding to this port is counted only if it is for a protocol being processed by the local bridging function, including bridge management errors.

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Field Description

Out Frames (dot1dTpPortOutFrames)

The number of frames that have been transmitted by this port from its segment. A frame received on the interface corresponding to this port is counted only if it is for a protocol being processed by the local bridging function, including bridge management errors.

In Discards (dot1dTpPortInDiscards)

The number of valid frames received which were discarded by the forwarding process.

—End—

Click Update to refresh the statistical information.

Monitoring MLT trafﬁc

Bandwidth usage can be monitored for the Multilink Trunk (MLT) member ports within each trunk in a conﬁguration by selecting the trafﬁc type to monitor.

To monitor MultiLink Trunk trafﬁc, follow this procedure:

Step Action 1

Open the MLT Utilization screen by selecting Application > MultiLink Trunk > Utilization from the menu. This screen is

illustrated below.

MLT Utilization screen

In the MultiLink Trunk Utilization Selection (View By) section, select a trunk to monitor in the Trunk list and a type of trafﬁc in the

Trafﬁc Type list.

3 Click Submit.

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—End—

The MultiLink Trunk Utilization Table section will be populated with information. The following table describes the ﬁelds in this table.

MultiLink Trunk Utilization Table ﬁelds

Field Description

Unit/Port A list of the trunk member switch ports that

correspond to the trunk speciﬁed in the Trunk

column. Last 5 Minutes The percentage of packets (of the type speciﬁed

in the Trafﬁc Type ﬁeld) used by the port in the

last ﬁve minutes. This ﬁeld provides a running

average of network activity, and is updated

every 15 seconds. Last 30 Minutes The percentage of packets (of the type speciﬁed

in the Trafﬁc Type ﬁeld) used by the port in the

last 30 minutes. This ﬁeld provides a running

average of network activity, and is updated

every 15 seconds. Last Hour The percentage of packets (of the type speciﬁed

in the Trafﬁc Type ﬁeld) used by the port in the

last 60 minutes. This ﬁeld provides a running

average of network activity, and is updated

every 15 seconds.

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Chapter 3 Conﬁguring Remote Network Monitoring (RMON)

The Remote Network Monitoring (RMON) Management Information Base (MIB) is an interface between the RMON agent on the Nortel Ethernet Routing Switch 5500 Series and an RMON management application, such as the Java Device Manager.

It deﬁnes objects that are suitable for the management of any type of network, but some groups are targeted for Ethernet networks in particular.

The RMON agent continuously collects statistics and monitors switch performance.

RMON has three major functions:

•

Creating and displaying alarms for user-deﬁned events

•

Gathering cumulative statistics for Ethernet interfaces

•

Tracking a history of statistics for Ethernet interfaces

Conﬁguring RMON with the CLI

This section describes the CLI commands used to conﬁgure and manage RMON.

show rmon alarm

The show rmon alarm command displays information on RMON alarms. The syntax for the show rmon alarm command is:

show rmon alarm

The show rmon alarm command is executed in the Privileged EXEC mode.

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show rmon event

The show rmon event command displays information regarding RMON events.

The syntax for the show rmon event command is:

show rmon event

The show rmon event command is executed in the Privileged EXEC command mode.

show rmon history

The show rmon history command displays information regarding the conﬁguration of RMON history.

The syntax for the show rmon history command is:

show rmon history

The show rmon history command is executed in the Privileged EXEC command mode.

show rmon stats

The show rmon stats command displays information regarding the conﬁguration of RMON statistics.

The syntax for the show rmon stats command is:

show rmon stats

The show rmon stats command is executed in the Privileged EXEC command mode.

rmon alarm

The rmon alarm command allows you to set RMON alarms and thresholds.

The syntax for the rmon alarm command is:

rmon alarm <1-65535> <WORD> <1-2147483647> {absolute | delta} rising-threshold <-2147483648-2147483647> [<1-65535>] falling-threshold <-2147483648-2147483647> [<1-65535>] [owner <LINE>]

"rmon alarm parameters" (page 91) outlines the parameters for this

command.

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rmon alarm parameters

Parameter Description

<1-65535>

Unique index for the alarm entry.

<WORD> The MIB object to be monitored. This is an object

identiﬁer, and for most available objects, an English name may be used.

<1-2147483647>

The sampling interval, in seconds.

absolute Use absolute values (value of the MIB object is

compared directly with thresholds).

delta Use delta values (change in the value of the MIB object

between samples is compared with thresholds).

rising-threshold <-21474836482147483647 > [<1-65535>]

The ﬁrst integer value is the rising threshold value. The optional second integer speciﬁes the event entry to be triggered when the rising threshold is crossed. If omitted, or if an invalid event entry is referenced, no event will be triggered.

falling-threshold <-21474836482147483647 > [<1-65535>]

The ﬁrst integer value is the falling threshold value. The optional second integer speciﬁes the event entry to be triggered when the falling threshold is crossed. If omitted, or if an invalid event entry is referenced, no event will be triggered.

[owner <LINE>] Specify an owner string to identify the alarm entry.

The rmon alarm command is executed in the Global Conﬁguration command mode.

no rmon alarm

The no rmon alarm command deletes RMON alarm table entries. When the variable is omitted, all entries in the table are cleared.

The syntax for the no rmon alarm command is:

no rmon alarm [<1-65535>]

Substitute <1-65535> above with the unique ID of the alarm entry. The no rmon alarm command is executed in the Global Conﬁguration

command mode.

rmon event

The rmon event conﬁgures RMON event log and trap settings. The syntax for the rmon event command is:

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rmon event <1-65535> [log] [trap] [description <LINE>] [owner <LINE>]

"rmon event parameters" (page 92) outlines the parameters for this

command.

rmon event parameters

Parameter Description

<1-65535>

Unique index for the event entry. [log] Record events in the log table. [trap] Generate SNMP trap messages for events. [description <LINE>] Specify a textual description for the event. [owner <LINE>] Specify an owner string to identify the event entry.

The rmon event command is executed in the Global Conﬁguration command mode.

no rmon event

The no rmon event deletes RMON eventtable entries. When the variable is omitted, all entries in the table are cleared.

The syntax for the no rmon event command is:

no rmon event [<1-65535>]

Substitute <1-65535> above with the unique ID of the event to be deleted. The no rmon event command is executed in the Global Conﬁguration

command mode.

rmon history

The rmon history conﬁgures RMON history settings. The syntax for the rmon history command is:

rmon history <1-65535> <LINE> <1-65535> <1-3600> [owner <LINE>]

"rmon history parameters" (page 92) outlines the parameters for this

command.

rmon history parameters

Parameter Description

<1-65535>

Unique index for the history entry. <LINE> Specify the port number to be monitored.

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Parameter Description

<1-65535>

The number of history buckets (records) to keep. <1-3600>

The sampling rate (how often a history sample is

collected). [owner <LINE>] Specify an owner string to identify the history entry.

The rmon history command is executed in the Global Conﬁguration command mode.

no rmon history

The no rmon history deletes RMON history table entries. When the variable is omitted, all entries in the table are cleared.

The syntax for the no rmon history command is:

no rmon history [<1-65535>]

Substitute <1-65535> above with the unique ID of the history entry. The no rmon history command is executed in the Global Conﬁguration

command mode.

rmon stats

The rmon stats command conﬁgures RMON statistics settings. The syntax for the rmon stats command is:

rmon stats <1-65535> <LINE> [owner <LINE>]

"rmon stats parameters" (page 93) outlines the parameters for this

command.

rmon stats parameters

Parameter Description

<1-65535>

Unique index for the stats entry. [owner <LINE>] Specify an owner string to identify the stats entry.

The rmon stats command is executed in the Global Conﬁguration command mode.

no rmon stats

The no rmon stats turns off RMON statistics. When the variable is omitted, all entries in the table are cleared.

The syntax for the no rmon stats command is:

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no rmon stats [<1-65535>]

Substitute <1-65535> above with the unique ID of the stats entry. The no rmon stats command is executed in the Global Conﬁguration

command mode.

Conﬁguring RMON with the Web-based Management Interface

This section discusses the conﬁguration and management of RMON using the Web-based Management Interface.

Conﬁguring RMON fault threshold parameters

Alarms are used to alert a system administrator when the value of a variable goes out of range. RMON alarms can be deﬁned on any MIB variable that resolves to an integer value. String variables (such as system description) cannot be used as alarm variables.

Creating an RMON fault threshold

To conﬁgure an RMON fault threshold, follow this procedure:

Step Action 1

Open the RMON Threshold screen by selecting Fault > RMON Threshold from the menu. This screen is illustrated below.

RMON Threshold screen

In the ﬁelds provided in the RMON Threshold Creation section, enter the information for the new threshold. The following tables outlines the ﬁelds in this section.

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RMON Threshold Creation ﬁelds

Field Description

Alarm Index Type the unique number to identify the alarm entry. Port Choose the port on which to set an alarm. Parameter Choose the sampled statistic. Rising Level Type the event entry to be used when a rising threshold

is crossed.

Falling Level Type the event entry to be used when a falling

threshold is crossed.

Rising Action Choose the type of notiﬁcation for the event. Selecting

Log generates an entry in the RMON Event Log table for each event. Selecting SNMP Trap sends an SNMP trap to one or more management stations.

Interval Type the time period (in seconds) to sample data and

compare the data to the rising and falling thresholds.

Alarm Sample Choose the sampling method:

Absolute: Absolute alarms are deﬁned on the current value of the alarm variable. An example of an alarm deﬁned with absolute value is card operating status. Because this value is not cumulative, but instead represents states, such as card up (value 1) and card down (value 2), you set it for absolute value. Therefore, an alarm could be created with a rising value of 2 and a falling value of 1 to alert a user to whether the card is up or down.

Delta: Most alarm variables related to Ethernet trafﬁc are set to delta value. Delta alarms are deﬁned based on the difference in the value of the alarm variable between the start of the polling period and the end of the polling period. Delta alarms are sampled twice per polling period. For each sample, the last two values are added together and compared to the threshold values. This process increases precision and allows for the detection of threshold crossings that span the sampling boundary. Therefore, if you keep track of the current values of a given delta-valued alarm and add them together, the result is twice the actual value. (This result is not an error in the software.)

Click Submit.

—End—

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The new RMON threshold is displayed in the RMON Threshold Table section.

Deleting an RMON threshold conﬁguration

To delete an existing RMON threshold conﬁguration, follow this procedure:

Step Action 1

Open the RMON Threshold screen by selecting Fault > RMON Threshold from the menu. This screen is illustrated above.

In the RMON Threshold Table, click the Delete icon in the row of the entry to be deleted.

A message prompts for conﬁrmation of the request. Click Yes.

—End—

Viewing the RMON fault event log

RMON events and alarms work together to produce notiﬁcation when values in the network go out of a speciﬁed range. When values pass the speciﬁed ranges, the alarm is triggered. The event speciﬁes how the activity is recorded.

An event speciﬁes whether a trap, a log, or a trap and a log are generated to view alarm activity. When RMON is globally enabled, two default events are generated:

•

Rising Event

•

Falling Event

Default events specify that when an alarm goes out of range, the ﬁring of the alarm is tracked in both a trap and a log. For example, when an alarm ﬁres at the rising threshold, the rising event speciﬁes that this information be sent to both a trap and a log. The RMON Event Log screen works in conjunction with the RMON Threshold screen to enable viewing the history of RMON fault events.

To view a history of RMON fault events, follow this procedure:

Step Action 1

Open the RMON Event Log screen by selecting Fault > RMON Event Log from the menu. This screen is illustrated below.

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RMON Event Log screen

—End—

The RMON event log is displayed.

Conﬁguring RMON with the Java Device Manager

This section will discuss the conﬁguration and management of RMON using the Java Device Manager (JDM).

Nortel 5510, 5530-24TFD, 5520, 5510-24T, 5510-48T Configuration

Specifications and Main Features

Frequently Asked Questions

User Manual