Nortel 5000 Release Notes

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Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400
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Document status: Standard Document version: 04.01 Document date: 12 December 2008
Copyright © 2008., Nortel Networks All Rights Reserved.
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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 Inc. reserves the right to make changes to the products described in this document without notice.
Nortel Networks Inc. 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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Contents
New in this release 7
Features 7 Other changes 7
Introduction 9 Important notices and new features 11
New features in release 6.0 11
File names for this release 14 Supported software and hardware capabilities 16 Nortel Ethernet Routing Switch 5520 phone dongle 17 Ensuring Device Manager Online Help displays correctly 17 Additional information for the feature software license file 18 Upgrading software 18 Supported standards, MIBs, and RFCs 21
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New hardware 7 File names for upgrade 8 Windows Vista 8 Hardware and software compatibility 8 Complete integration of all release 5.1 features 8 Document changes 8
New hardware in release 6.0 11 Software features in release 6.0 12
Standards 21 RFCs 21
Resolved issues 25
Issues resolved in release 6.0 25
Known issues and limitations 29
Known issues 29
VLACP issue 44 Port or ifIndex offset issue 45
Filter resource consumption 45
Masks and filters inventory check 47 QoS Interface Security Application 51
Copyright © 2008., Nortel Networks
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Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008
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6 Contents
Copyright © 2008., Nortel Networks
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Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
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6.0 12 December 2008
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New in this release

The following sections detail what’s new in Nortel Ethernet Routing Switch 5000 Series Release Notes — Release 6.0.

Features

See the following sections for information about feature changes.
"Dual agent support" (page 12)
"IGMPv3 snooping support" (page 12)
"PIM-SM" (page 12)
"IPv6 " (page 12)
"Many-to-many port mirroring (Ethernet Routing Switch 5600 Series only)" (page 12)
"MIB and Trap Web pages" (page 13)
"NSNA enhancements" (page 13)
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"ASCII download log enhancements" (page 13)
"RMON entry scaling" (page 14)
"DoS attack prevention package (DAPP) support" (page 14)
"Improved sytem log capabilities (exception errors)" (page 14)
"SMLT enhancements" (page 14)

Other changes

See the following sections for information about changes that are not feature-related.

New hardware

Nortel Ethernet Routing Switch 5000 Series introduces new switches that complement the Ethernet Routing Switch 5500 Series. The new switches provide increased bandwidth, use the same software image as the 5500 Series switches, and allow you to customize your stack.
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Nortel Ethernet Routing Switch 5000 Series
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8 New in this release

File names for upgrade

See "File names for this release" (page 14) for the file names for this release.

Windows Vista

Release 6.0 supports Windows Vista.

Hardware and software compatibility

The following sections provide a synopsis of hardware and software compatibility considerations.

Complete integration of all release 5.1 features

Release 6.0 incorporates all the features of all previous releases and maintenance builds up to and including all release 5.1 customer builds. (NOTE: The intent is to support most maintenance builds on the v5.1 stream in v6.0, however, there may be instances when there is a v5.1.x that will not be supported because it was not available at the time of integration into the v6.0 stream.)
See Nortel Ethernet Routing Switch — Release Notes, Software Release
5.1 (NN47200-400) for more information on release 5.1 features.

Document changes

This document is reformatted to comply with the Nortel Customer Documentation Standards. For more information, see Nortel Ethernet Routing Switch 5000 Series Documentation Roadmap, NN47200-101.
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Introduction

This document describes new features, hardware, upgrade alerts, known and resolved issues, and limitations for Nortel Ethernet Routing Switch 5000 Series, release 6.0.
For information on how you can upgrade your version of Device Manager, see Nortel Ethernet Routing Switch 5000 Series Fundamentals, NN47205-102.
The Nortel Ethernet Routing Switch 5000 Series, supported by software release 6.0, includes the following switch models:
Nortel Ethernet Routing Switch 5510-24T
Nortel Ethernet Routing Switch 5510-48T
Nortel Ethernet Routing Switch 5520-24T-PWR
Nortel Ethernet Routing Switch 5520-48T-PWR
Nortel Ethernet Routing Switch 5530-24TFD
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Nortel Ethernet Routing Switch 5698-TFD
Nortel Ethernet Routing Switch 5698-TFD-PWR
Nortel Ethernet Routing Switch 5650-TD
Nortel Ethernet Routing Switch 5650-TD-PWR
Nortel Ethernet Routing Switch 5632-FD
Configurations can vary from a stand-alone switch to a stack of up to 8 switches. A stack can consist of any combination of switches. One of the benefits of operating Nortel Ethernet Routing Switch 5000 Series switches in a stack is management efficiency; a stack is managed with a single IP address and software is available as a single image across all models.
These Release Notes provide the latest information about software release
6.0, as well as operational issues not included in the documentation suite.
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10 Introduction
For a complete list of documentation in the Nortel Ethernet Routing Switch 5000 Series suite, see Nortel Ethernet Routing Switch 5000 Series Documentation Road Map (NN47200-101).
The information in these Release Notes supersedes applicable information in other documentation.
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Important notices and new features

This section contains a brief synopsis of the new features in release 6.0 and any important notices.
Navigation
This section includes the following sections:
"New features in release 6.0" (page 11)
"File names for this release" (page 14)
"Supported software and hardware capabilities" (page 16)
"Nortel Ethernet Routing Switch 5520 phone dongle" (page 17)
"Ensuring Device Manager Online Help displays correctly" (page 17)
"Additional information for the feature software license file" (page 18)
"Upgrading diagnostic software" (page 18)
"Supported standards, MIBs, and RFCs" (page 21)
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New features in release 6.0

Ethernet Routing Switch 5000 Series, release 6.0 provides the following new hardware, features or feature enhancements:

New hardware in release 6.0

Release 6.0 introduces the following Ethernet Routing Switch 5600 Series switches:
Nortel Ethernet Routing Switch 5698-TFD
Nortel Ethernet Routing Switch 5698-TFD-PWR
Nortel Ethernet Routing Switch 5650-TD
Nortel Ethernet Routing Switch 5650-TD-PWR
Nortel Ethernet Routing Switch 5632-FD
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
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12 Important notices and new features
You can use the Ethernet Routing Switch 5600 Series switches as stand-alone switches, in a hybrid stack with your existing Ethernet Routing Switch 5500 Series switches, or in a pure stack of Ethernet Routing Switch 5600 Series switches.
The Ethernet Routing Switch 5600 Series switches provide more power through optional power supply modules. For power supply options and specifications, see Nortel Ethernet Routing Switch 5000 Series Installation (NN47200-300).
For complete descriptions of the new switches and installation instructions for the Ethernet Routing Switch 5600 Series, see Nortel Ethernet Routing Switch 5000 Series Installation (NN47200-300).

Software features in release 6.0

Dual agent support
This feature provides support for two agents and configurations for either Ethernet Routing Switch 5500 or 5600 Series pure stacks, or for mixed stacks containing both products, however, Dual Agent Functionality is not supported on the Ethernet Routing Switch 5510. The requirement is for the Agent image to selectively boot the device using either agent specified. In addition, the ability to specify when one agent image will become the primary (immediate, next reboot, or scheduled reboot) will be available.
IGMPv3 snooping support
Release 6.0 supports basic IGMPv3 snooping.
PIM-SM
Release 6.0 supports basic multicast routing. PIM-SM is a licensed feature which has been added to the existing Advanced License for the 5000 series. PIM-SM only operates in stand-alone mode in this release.
Ethernet Routing Switch 5600 Series hardware that operates in stand-alone mode, as well as Ethernet Routing Switch 5520 or 5530 switches in stand-alone mode support PIM-SM. The Ethernet Routing Switch 5510 does not support PIM-SM.
IPv6
This feature provides management support for the switch or stack through IPv6. Functionality includes IPv6 host access to the switch, as well as access to a number of management functions over IPv6.
Many-to-many port mirroring (Ethernet Routing Switch 5600 Series only)
Release 6.0 supports many-to-many port mirroring on Ethernet Routing Switch 5600 Series switches.
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New features in release 6.0 13
This functionality is only available on the Ethernet Routing Switch 5600 Series hardware. A maximum of 4 port mirroring instances can be configured based on some rules. A Hybrid stack supports only one port-mirroring instance (the default instance) as in Ethernet Routing Switch 5500 Series.
In a pure Ethernet Routing Switch 5600 Series hardware stack with stack oper-mode configured to hybrid only one port-mirroring instance is available. This rule is not applicable to standalone because stack oper-mode mode is valid only on stack. So on a Ethernet Routing Switch 5600 standalone with stack oper-mode configured as hybrid all 4 port mirroring instances will be allowed.
All existing traffic identification modes for mirroring are supported. You can configure many-to-many port mirroring with Web-based management. Device Manager does not support Port Mirroring.
MIB and Trap Web pages
A new Web page allows you to selectively configure traps and trap receivers. The page follows the standard web design conventions and has each trap and trap receiver listed. The Web page allows you to enter additional trap receivers and modify existing ones. The Web page lists all available traps and allows you to selectively enable or disable each one.
The new MIB Web Page application offers a way to access the SNMP MIB objects for each unit from Web-based management, with the help of the
Get, Get-Next and Walk buttons.
NSNA enhancements
Release 6.0 supports Fail Open and VLAN Change Based on MAC Authentication.
ASCII download log enhancements
The ASCII Download Log feature logs messages that describe the result of the ASCII Configuration File download, especially the failed commands, as informational customer messages.
Combination image
The Combination (Combo) Agent Image contains the header of the image and two agent images, a 56xx agent image and a 55xx agent image.
Ethernet Routing Switch 5500 software releases before release 6.0 do not support the Combo image.
A stand-alone unit or a stack that uses the Ethernet Routing Switch 5000 Series Software Release 6.0 can download a combo image.
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14 Important notices and new features
This software release (6.0) will be available in two different formats, a file in Combo format version 6.0 and a file in 55xx image format version 6.0. The 55xx image format in this release is necessary because all the current 55xx releases do not support the Combo image.
Combo Diagnostic Image
The Combo Diagnostic Image contains the header of the image and two Diagnostic images, a 56xx diagniostic image and a 55xx diagnostic image.
Ethernet Routing Switch 5500 software releases before release 6.0 do not support the Combo diagnostic image.
This diagnostic release for the new software release ( 6.0) will be available in two different formats, a file in Combo format and a file in 55XX format. The 55XX image format in this release is necessary because all the current 55XX releases do not support the Combo diagnostic image.
RMON entry scaling
Release 6.0 increases the number of RMON entry scaling entries for the RMON Alarm Table and RMON event tables to 800. The previous limit was 150. You can configure RMON entry scaling with NNCLI, ACG, and Device Manager.
DoS attack prevention package (DAPP) support
Release 6.0 introduces DAPP on Ethernet Routing Switch 5600 Series switches.
Ethernet Routing Switch 5600 ASICs have a number of pre-configured virus and DoS signatures built in. This release provides a method of quickly enabling the preconfigured virus and DoS signatures to provide additional levels of protection within the network while simultaneously preserving filters. You can configure DAPP with NNCLI, ACG, Device Manager, and on a separate Web page.
Improved sytem log capabilities (exception errors)
Release 6.0 provides additional system log capabilities and adds exception error numbers to the system log.
SMLT enhancements
Release 6.0 adds square and mesh topology support.

File names for this release

Table 1 "Software Release 6.0 Components" (page 15)describes the Nortel
Ethernet Routing Switch 5000 Series, software release 6.0 software files. File sizes are approximate.
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Table 1 Software Release 6.0 Components

File names for this release 15
Module or file type Description File Name
ERS 5600 Series Standard Runtime Image Software
Standard non SSH combo image for
5xxx_600004.img
the Ethernet Routing Switch 5000 Series
ERS 5600 Series Standard Runtime Image Software
Standard SSH combo image for the Ethernet
5xxx_600005s.img
Routing Switch 5000 Series
ERS 5500 Series Standard Runtime Image Software
Standard non SSH 55xx image for the
55x0_600004.img
Ethernet Routing Switch 55xx Series
ERS 5500 Series Secure Runtime Image Software
Standard SSH 55xx image for the Ethernet
55x0_600005s.img
Routing Switch 55xx Series
ERS 5600 Series Diagnostic Image
Ethernet Routing Switch 5000 Combo
5xxx_60006_diags.bin
diagnostic software
ERS 5500 Series Diagnostic Image
Ethernet Routing Switch 5500
55x0_60006_diags.bin
diagnostic software
ERS 5500/5600 Series MIBs
MIB definition files Ethernet_Routing_Switch_
5xxx_MIBs_6.0.0.zip
File Size (bytes)
15 312 828
15 838 236
7 456 924
7 718 252
2 464 932
830 980
1 392 613
Device Manager software version for Windows
Device Manager software image for Windows NT, Windows Vista, Windows XP, Windows 2003, Windows 2000
Java Device Manager software version for Solaris UNIX (6.0.11.0)
Java Device Manager software version for Linux (6.0.11.0)
Device Manager software image for Solaris
Device Manager software image for Linux
Readme file Device Manager
readme file
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
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16 Important notices and new features
Device Manager support for the ERS5500 and ERS5600 v6.0.0 will be in Java Device Manager v6.1.6 targeted for availability from www.nortel.comby 2008-12-19.

Supported software and hardware capabilities

The following table lists the known limits for the Ethernet Routing Switch 5000 Series, release 6.0 and Device Manager 6.0.1.0. These capabilities will be enhanced in subsequent software releases.

Table 2 Supported capabilities in Ethernet Routing Switch 5000 Series switches

Feature Maximum number supported
VLANs
256
Protocol-based VLANs Depending on the protocol specified, the
number of protocol VLANs supported at one time varies between 3–7. See Nortel Ethernet
Routing Switch 5500 Series Configuration — VLANs, Spanning Tree, and MultiLink Trunking
(NN47200-502) for more information.
Nortel SNA VLANs One Red VLAN per switch. Nortel recommends
a maximum of five Yellow VLANs, five Green VLANs, and five VoIP VLANs per switch for release 6.0.
Nortel SNA ports All ports.
Note: The 5530 has two 10 Gigabit (Gb) ports. You can configure these as uplink ports only.
You cannot configure these as dynamic ports. Aggregation groups (link aggregation) Ports per aggregation group
32
8 IGMP maximum number of unique groups 240 (for Layer 2) and 1000 (for Layer 3) EAPoL 802.1x supplicants All ports MAC addresses in fdb 16 Kb
1
Number of routes (dynamic, static and local)
2000 ARP records Static ARP IP interfaces Static routes Spanning Tree Groups Aggregation groups (link aggregation) Ports per aggregation group
Nortel Ethernet Routing Switch 5000 Series
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1500
256
256
up to 512
8
32
8
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Ensuring Device Manager Online Help displays correctly 17
Feature Maximum number supported
MAC addresses in fdb 16 Kb OSPF areas 4 (3 areas plus area 0) OSPF adjacencies VRRP interfaces ECMP 4 paths DHCP Snooping Binding table entries
64
64
2
512 DHCP relay forward paths IP Management routes PIM-SM multicast entries Up to 500 for 55xx series
1
Total number of routes (dynamic and static) supported.
2
Not supported on 5510 switches.
512
4
Up to 1000 for 56xx series

Nortel Ethernet Routing Switch 5520 phone dongle

The part number for the Nortel Ethernet Routing Switch 5520 (5520-24T/48T-PWR) universal phone dongle is DY4311046.

Ensuring Device Manager Online Help displays correctly

Nortel supports the following two browsers for Device Manager Online Help:
Netscape
Internet Explorer
If you use Netscape as your Web browser, to ensure that the topics and table of contents display correctly when making a context call to on-product Help, perform the following procedure once before requesting Help on a topic:
1. Start the Netscape browser.
2. From the Tools menu, select Options. (An Options window opens.)
3. In the Security and Privacy panel of the Options window, click Site Controls. (An Options - Site Controls window opens.)
4. Ensure that the Site List tab is selected.
5. Select Local Files in the Master Settings area of the window.
6. Select Internet Explorer in the Rendering Engine area of the window.
7. Click OK to close the Options - Site Controls window.
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18 Important notices and new features
Additional information for the feature software license file
When you create a license file to enable licensed features on an Ethernet Routing Switch 5000 Series switch with the Nortel Electronic Licensing Portal at www.nortellicensing.com, you must specify a file name. Follow the instructions on the License Certificate within the License Kit, or see Nortel Ethernet Routing Switch 5000 Series Fundamentals (NN47200-104) for more information. You must use the following rules when you generate and name the file:
A maximum of 63 alphanumeric characters
Lowercase only
No spaces or special characters allowed
Underscore (_) is allowed
The dot (.) and three-character file extension are required
For example, abcdefghijk_1234567890.lic. The format of the file that you upload to the license generation tool (and that
contains the list of MAC addresses) must be as follows:
ASCII file format
One MAC address per line
No other characters, spaces, or special characters allowed
MAC must be in hexadecimal, capitalized format, with each pair of characters separated by colons (XX:XX:XX:XX:XX:XX)
The file must contain the correct MAC addresses. Any incorrect MAC addresses will result in the licensed features not working on designated units.
The number of MAC addresses must not exceed the number of MAC addresses allowed for the License Authorization Code entered for a particular file:
— AL1016001 = 2 MAC addresses (1 stack/standalone unit) — AL1016002 = 20 MAC addresses (10 stacks/standalone units) — AL1016003 = 100 MAC addresses (50 stacks/standalone units) — AL1016004 = 200 MAC addresses (100 stacks/standalone units)

Upgrading software

To upgrade to the new software release 6.0, Nortel recommends that you upgrade the diagnostic software to the 6.0.0.4 version, and then upgrade the agent version to release 6.0.
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Upgrading software 19
Note: If you have version 5.x software on your Ethernet Routing Switch 5000 Series switches with an Advanced License file installed, use the following steps to upgrade your software.
Identify the corresponding Ethernet Routing Switch 5000 Series switch Advanced License deposit in the License Bank and click Details.
Locate the License file name in the transaction and click Download to download the Advanced License file and reinstall it on Ethernet Routing Switch 5000 Series switch or switch stack to enable configuration of the release 6.0 feature, PIM-SM (which has been added to the Advanced License).
The following table describes possible image locations:

Table 3 Possible scenarios

Image Location
Local Agent Image Agent image in the flash memory of the unit. Local Diagnostic Image Diagnostic image in the flash memory of the unit Pre-5.0 Diagnostic Image Diagnostic image released before 5.0.
5.0 Diagnostic Image Diagnostic image released in 5.0
6.0 Diagnostic Image Diagnostic image released in 6.0
You can upgrade the Agent Image in your switches from an earlier release image. The following table provides the Agent Image downgrade or upgrade chart:

Table 4 Agent Image downgrade or upgrade chart

Local Agent Image version
5.0
5.1
6.0
Download Agent Image version
4.x 5.0 5.1 6.0 Yes Yes Yes—if Local
Diagnostic Image is 5.0 Diag Image.
Yes Yes Yes Yes Yes Yes Yes Yes
Yes—if Local Diagnostic Image is 5.0 Diag version or 6.0 Diag version.
4.x
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Yes Yes No No
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20 Important notices and new features
You can upgrade the Diagnostic Image in your switches from an earlier release image. The following table provides the Diagnostic Image downgrade or upgrade chart:

Table 5 Diagnostic Image downgrade or upgrade chart

Local Agent Image version
5.0
5.1
6.0
Use the following procedure to upgrade the Agent Image from release 5.0 or 5.1 to release 6.0:
Upgrading Agent Image from release 5.0 or 5.1 to release 6.0
Step Action 1 Upgrade the diagnostic image from the earlier release to release 6.0
2
Download Diagnostic Image version
Before release 5.0 Yes Yes Yes No Yes Yes No Yes Yes
5.1 6.0
diagnostic image. Upgrade the agent image from release 5.0 or 5.1 to release 6.0
agent image.
—End—
Use the following procedure to upgrade the Agent Image from release 4.x to release 6.0
Upgrading Agent Image from release 4.x to release 6.0
Step Action 1
2
3
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Upgrade the agent image from release 4.x to release 5.0. Upgrade the diagnostic image the earlier release to release 6.0
diagnostic image. Upgrade the agent image from release 5.0 to release 6.0.
—End—
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Note: If the you have an existing Stack with mismatched Diagnostics, the Base will not allow you to load the agent. If an error occurs when you try to upgrade the software, check that the software and Diagnostics versions all match by running the Show Tech command.

Supported standards, MIBs, and RFCs

This section lists the standards, MIBs, and RFCs supported by the Nortel Ethernet Routing Switch 5000 Series.

Standards

The following IEEE Standards contain information that applies to the Nortel Ethernet Routing Switch 5000 Series:
IEEE 802.1D (Standard for Spanning Tree Protocol)
IEEE 802.3 (Ethernet)
IEEE 802.1Q (VLAN Tagging)
IEEE 802.1p (Prioritizing)
IEEE 802.1X (EAPOL)
Supported standards, MIBs, and RFCs 21

RFCs

IEEE 802.3u (Fast Ethernet)
IEEE 802.3z (Gigabit Ethernet)
IEEE 802.3ab (Gigabit Ethernet over Copper)
IEEE 802.3x (Flow Control)
IEEE 802.3ad (Link Aggregation)
IEEE 802.1ab (Link Layer Discovery Protocol)
For more information about networking concepts, protocols, and topologies, consult the following RFCs:
RFC 791 (IP)
RFC 894 (IP over Ethernet)
RFC 792 (ICMP)
RFC 793 (TCP)
RFC 1350 (TFTP)
RFC 826 (ARP)
RFC 768 (UDP)
RFC 854 (Telnet)
RFC 951 (BootP)
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22 Important notices and new features
RFC 1213 (MIB-II)
RFC 1493 (Bridge MIB)
RFC 2863 (Interfaces Group MIB)
RFC 2665 (Ethernet MIB)
RFC 2737 (Entity MIBv2)
RFC 2819 (RMON MIB)
RFC 1757 (RMON)
RFC 1271 (RMON)
RFC 1157 (SNMP)
RFC 1112 (IGMPv1)
RFC 1945 (HTTP v1.0)
RFC 2131 (DHCP)
RFC 2236 (IGMPv2)
RFC 2865 (RADIUS)
RFC 2674 (Q-BRIDGE-MIB)
RFC 3410 (SNMPv3)
RFC 3411 (SNMP Frameworks)
RFC 3413 (SNMPv3 Applications)
RFC 3414 (SNMPv3 USM)
RFC 3415 (SNMPv3 VACM)
RFC 3412 (SNMP Message Processing)
The following table lists IPv6 specific RFCs.
Standard
RFC 2460 Internet Protocol v6 (IPv6)
RFC 2461 Neighbor Discovery for IPv6 Supported RFC 2462 IPv6 Stateless Address
RFC 4443 Internet Control Message
RFC 4301 Security Architecture for the
Description
Specification
Auto-configuration
Protocol (ICMPv6)
Internet Protocol
Compliance
Supported
Auto-configuration of link local addresses only
Support earlier version of RFC (2463)
Not supported
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Supported standards, MIBs, and RFCs 23
Standard
Description
Compliance
RFC 4291 IPv6 Addressing Architecture Support earlier version of RFC
(3513) RFC 4007 Scoped Address Architecture Supported RFC 4193 Unique Local IPv6 Unicast
Not supported
Addresses
RFC 4293 Management Information Base
Mostly supported
for IP
RFC 4022 Management Information Base
Mostly supported
for TCP
RFC 4113 Management Information Base
Mostly supported
for UDP RFC 1981 Path MTU Discovery for IPv6 Supported RFC 2464 Transmission of IPv6 Packets
Supported
over Ethernet Networks RFC 4213 Transition Mechanisms for IPv6
Hosts and Routers
Supports dual stack. No
support for tunneling yet. RFC 3162 RADIUS and IPv6 Supported RFC 1886 DNS Extensions to support IPv6 Supported
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Resolved issues

The following table lists the issues resolved for release 6.0:

Issues resolved in release 6.0

The following table describes the issues in previous software releases for the Ethernet Routing Switch 5000 Series that have been resolved in release 6.0.
Table 6 Issues resolved in Ethernet Routing Switch 5000 Series release 6.0
25
Change Request Number
Q01193666 Pinging the virtual IP address from the master VRRP routing switch is
Q01200004 Ping delay resolved. Q01295448 With release 6.0, when configuring IPFIX, the Exporter IP is not
Q01305224 Each port on the 5520 is restricted to 11 interface IDs. Depending on
Q01324425 A PC can disappear from the Nortel SNA client list after you perform a
Q01334161 When a port is NSNA enabled, the CLI allows you to disable CIST
Documented issue
now supported.
configurable. Therefore the exporter address is one of the routable interfaces. Resolved.
your configuration, you may be unable to select the complete list of interface applications on an Ethernet Routing Switch 5520 because of the permitted number of interface IDs. Resolved.
Time Domain Reflectometry (TDR) test on a Nortel SNA dynamic port. Workaround: Nortel recommends that you avoid running a TDR test on a Nortel SNA port. Resolved.
learning even though that port belongs to CIST and MSTI. Whenever a port is added to a new VLAN in RSTP or MSTP mode, it automatically becomes STP enabled for that group. This is different from the Nortel STPG mode, where the port is not automatically enabled on the STP group. Resolved.
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Change Request Number
Documented issue
Q01376770 Note that you should not disable global IP routing on the 5500 Series
switch when the switch has an IST enabled. The CLI returns a reminder message if you attempt to disable IP routing with an IST enabled. The JDM also returns an error message, although the message is more generic than that returned from the CLI. Resolved.
Q01378866 When VLAN configuration control (VCC) is set to automatic, avoid
changing tagging on ADAC ports. Resolved.
Q01386170 An ACG file will display error messages for RIP settings when you
attempt to download the file if the file contains more then 64 IP VLANs. If using the CI, the download stops at the first error message. Resolved.
Q01402433-01 The CLI commands used to set the CLI password on a stack are not
displayed when using ? to request CLI help for the command (that is, cli password ?). The omitted commands are:
cli password stack serial <password>
cli password stack telnet <password>
cli password stack read-only <password>
cli password stack read-write <password>
Resolved.
Q01402425-01 MAC address security in a stack is limited to the highest port number
of the base unit if that unit is a 5510-24T or 5530-24TFD model. Port numbers higher than 24 are not allowed when a 5510-24T is the base unit and ports higher than 26 are not allowed when a 5530-24TFD is the base unit. For example, if the stack consists of a 5530-24TFD as the base unit and unit 2 is a 5510-48T, ports 2/25 through 2/48 cannot be used for MAC-based security in learning mode.
Note: Also see CR Q01387506-01 directly below. Resolved.
Q01387506-01 In hybrid (mixed) stack configurations, Nortel recommends that the
higher model number unit be made the base unit. In instances where a 5530-24TFD is to be part of the stack, Nortel recommends that this unit be made the base unit to utilize the full range of features present on this unit.
Note: If running MAC security, ensure you have a 48-port unit as the BU (see CR Q01402425-01 directly above).
Resolved.
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Issues resolved in release 6.0 27
Change Request Number
Documented issue
Q01338594 ACG configuration files do not save LLDP information successfully.
Resolved.
Q01327042 Q01326930
No useful error message appears when you try to enable ECMP or OSPF on the JDM without the software license. You cannot, however, enable ECMP or OSPF without the license. Workaround: Upload the license using the CLI prior to globally enabling ECMP or OSPF on the JDM. Resolved.
Q01340389 The switch allows you to change rate limiting on active DMLT ports
while one or more units having DMLT members are down. However, Nortel recommends you avoid configuration changes of any kind while some units (with DMLT members) are down, as you may experience unexpected results. Resolved.
Q01357858 Proprietary TLV is not available for MLT, however 802.3 link
aggregation is supported. Resolved.
Q01362571 There is no message or information provided after you download the
software license file using the Web interface. You will not receive notification that the license has loaded successfully or not. Note that you must reset the switch for the license to be activated. Resolved.
Q01362573 When you open the license download page using the Web-based
interface, there is no help file information in the configuration section for loading the license file. Resolved.
Q01366773 Avoid enabling Nortel SNA on a brouter port—the port is not added
to the Red VLAN in this case. Release 5.0 does not support Nortel SNA on a brouter port. Resolved.
Q01372515 OSPF virtual link is not supported in release 6.0. Any display for this
feature is strictly informational. Resolved.
Q01381116 For Release 5.0, ensure you set LACP timeout to “Long” if you have
more than eight LACPs and eight links per LACP. Resolved.
Q01382613 A root is not elected on an MLT if the VID for an MLT port belongs to a
VLAN for an inactive MSTI. Ensure the PVID belongs to a VLAN for an active MSTI. This is related to a hardware limitation. Resolved.
Q01384306 Note that the JDM displays information for RIP Poison enable/disable
inconsistently. Workaround: Use the CLI. Resolved.
Q01386369 If using OSPF MD5 authentication, note that in the case of
authentication failure, only the enterprise-specific traps are logged to the syslog. Resolved.
Q01305076 For release 6.0, you cannot load the software license file from a USB
device. Resolved.
Q01404072 After entering any other command, wait at least twenty (20) seconds
before using the copy config nvram command. Additionally, Nortel recommends that you avoid using the copy config nvram command in ASCII configuration files. Resolved.
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Change Request Number
Documented issue
Q01730928 Nortel recommends that you do not execute the Stack loopback test
until the switch has completes the bootup process. If you execute this test during the bootup process, it may produce unpredictable results. Resolved.
Q01246853 You may receive an error message when performing TDR tests using
cable lengths greater than 60 m. Resolved.
Q01927798 You cannot change the management VLAN after the switch or stack
IP address is assigned in Layer 2 mode. Resolved.
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Known issues and limitations

Use the information in this section to learn more about known issues and limitations. Where appropriate, use the workarounds provided for these.

Known issues

See the followingtable for a list of known anomalies for the Ethernet Routing Switch 5000 Series release 6.0.
Table 7 Ethernet Routing Switch 5000 Series known issues
29
Change Request Number
Q01280422 The switch may display “0” for the root port (spanning tree), rather than
Q01328936 Q01331097 Q01345613
Q01309758 If LACP is enabled on a port that you configure as a Nortel SNA uplink port,
Q01319650 When you have VRRP and traps enabled, OSPF convergence may slow
Q01334543 The switch does not return a meaningful message when you attempt to add
Q01339715 The IPFIX flush menu item is present and functioning in the CLI, although the
Description
“None”. Note that the greater the number of VRRP instances you have, the greater
the risk of VRRP bounces (Release 5.0 supports 64 VRRP instances). To help alleviate VRRP bounces, when you configure FAI on VR instances, set the FAI to 600 ms or higher. In general, for a large number of VRRP instances, Nortel recommends that you use a higher advertisement interval.
the switch does not allow you to disable LACP on that port.
down.
five or more IP prefix lists into a policy.
ip ipfix flush command and its parameters do not display in the menu when you enter an ip ipfix ? command query (Global configuration mode).
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Change Request
Description
Number
Q01346792 If you are unable to get the switch to transmit LLDP network policy type,
length, and value (TLV), ensure that the following two conditions are true:
ADAC is enabled on the port
“Filter Unregistered Frames” option is set to “Disabled” on the ADAC-enabled port
Refer to Nortel Ethernet Routing Switch 5500 Series Overview – System Configuration (NN47200-500) for more information.
Q01353603 When attempting to download the license file using the JDM after a previous
attempt, the switch may return a “commitFailed” error. You may also receive this error if you enter an invalid license file name.
Q01366965 The CLI behavior related to PoE TLVs (MED "Extended Power-Via-MDI"
and DOT3 "Extended Power-Via-MDI") is inconsistent when enabling them for transmission on non-PoE switches (no error message is generated in either instance).
Q01370360 When using the CLI, you may see an inconsistency in output for the
show spanning-tree <mstp|rstp> port <config|status>
<port> commands in MSTP or RSTP mode. This only occurs when there is
no link on the port for which you are viewing statistics.
Q01371237 The 5500 Series switch supports 32 MLT groups. These can be configured
using the CLI, JDM, and the Web interface. Note that the CI allows you to configure only six of the 32 MLT groups.
Q01379149 You must ensure you set the same speed on link partners. That is, if the
speed for a port is set to 10 Mbps, any device connected to that port (for example, an IP phone), must also be running at 10 Mbps.
Q01380260 You may experience an inconsistency between the base unit (BU) and
non-base unit (NBU) ports when using the EAPoL authentication process with UBPs. Specifically, on the NBU, if a policy cannot be installed, the switch will send a success and then immediately send a failure.
Q01384613 There is a scaling limitation for TLV in the 802.1ab feature. If you have an
8-unit stack that is fully connected and has 256 VLANs configured, you might experience that the DOT1 VLAN name TLV is not sent properly.
Q01385870 You can configure port mirroring using NNCLI, CI and Web-based
management only.
Q01391522 When using the CI to create STP groups, you may receive "The Group has
no VLAN members" error message, which then interferes with subsequent configuration. Toggle the STP group field to continue configuration.
Q01394363 There is a discrepancy between the CI and the JDM when viewing port
statistics displayed for received packets.
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Change Request
Description
Number
Q01395852 If OSPF is enabled, you may receive an OSPF syslog message on the NBU
while the system is coming up. This occurs because OSPF checks for the license, but the license information is not available until the stack is formed.
Q01319058 In a Nortel SNA setup, you may experience temporary loss of Nortel SNA
functionality when UDP forwarding has approached maximum capacity. Workaround: Configure a filter on the port that connects to the SNAS (or depending on your configuration, on the port connected to the switch that, in turn, connects to the SNAS) to isolate Nortel SNA SSCP traffic received by the CPU. The CLI commands to configure a filter are the following:
qos ip-element <element id> src-ip <ipaddr/mask>
qos classifier <value> set-id <value> element-type ip element-id <value>
qos action <value> update-1p <value>
qos policy <value> port <portlist> clfr-type class clfr-id <value> in-profile-action <action id> prec <value>
Q01374774 When you simultaneously reset two or more non-adjacent stack members
causing other members to be isolated from the stack, the stack may fail the DB exchange when the reset units attempt to re-join the stack. Workaround: Reset the base unit, or change the ports status for a stack (down/up).
Q01622383 MLT/Mac-sec: Traffic does not recover after reboot on a MLT with mac-sec
enable until you reboot the standalone.
Q01618770 To upgrade the SSH from Rel. 4.x.x to Rel. 5.1, you must first upgrade to 5.0.
Use the following procedure to upgrade from Rel. 4.x.x to Rel. 5.1.
1. Upgrade the agent image from Rel. 4.xx to Rel. 5.0
2. Upgrade the diag. image to Rel. 5.0.0.4 (this diag. image was released with agent Rel. 5.1)
3. Upgrade the agent image from Rel. 5.0 to Rel. 5.1.
Q01415261 If a MAC is not present in the MAC-db at the SNAS, it is learned on a switch
port and entered as a dynamic PC into the NSNA client list. Adding the same MAC to the MAC-db after that will not authenticate the MAC. The port will need to be reset or NSNA disabled and enabled at the port to remove it from the client list for subsequent authentication of that MAC.
Q01650221 NSNA dynamic ports must have Spanning Tree Learning mode Fast Learning
or Disabled when NSNA is globally enabled. STP Normal Learning mode will not be restored if NSNA is disabled.
Q01637116 Adding or deleting host routes for hosts directly attached to the router in
non-backbone area is not advertised by the router without disabling and enabling OSPF on the switch.
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Change Request
Description
Number
Q01471387 Ping to the VRRP IP addresses on the switch from local console or telnet
is not supported.
Q01680155 Nortel recommends that you do not make any changes that might affect
NSNA behavior when you have clients connected.
Q01681616 If you remove a connected route, none of the static routes depending on it
will be added back as Non Local Static Routes if there is another route which can be used as Next Hop for these routes.
Q01680918 The show qos diag command may not show correct data if the device is
in the middle of a filter installation.
Q01655103 Tagged ports shared between a VLAN in STPG 1 / CIST and a VLAN
removed from all spanning tree groups will block traffic for both VLANs if the STP state is not ’Forwarding’ in STPG 1 / CIST.
Q01650225 Due to the nature of NSNA, Nortel recommends that you disable autosave
with no autosave enable, while NSNA is enabled. If you need to save a configuration, use the explicit save to nvram command, copy config nvram.
Q01421487 STPG: When a Topology Change is in place, some MAC addresses may not
be aged out from the MAC address table after the Forwarding Delay interval.
Q01688004 Q01689623
Nortel recommends that you do not connect both SMLT aggregation switches to the same network or end device (PC or workstation) through non SMLT/SLT ports. When non SMLT/SLT ports are connected together on the same VLAN with the IST ports, it creates a loop in the network.
To prevent a loop, always assign non SMLT/SLT ports to different VLANs. For instance, if switches A and B are both SMLT aggregation switches and
ports 5 on both switches are non SMLT/SLT ports, and you connect ports 5 of both switches to the same PC configured as a TFTP server, you must assign port 5 of switch A to VLAN 100 and port 5 of switch B to VLAN 200. IST ports may or may not be a member of VLANs 100 and 200.
Q01426066 In a busy network which has more than 400 L3 routes and 2000 MAC
addresses, if one of the SMLT aggregation switches goes down and then comes back up, each aggregation switch must ageout its own MAC and ARP tables, and then relearn the new MACs and ARPs. During this process, contention for system resources will cause new MAC addresses and new ARPs to be processed slowly, possibly resulting in flooding and packet loss for about 20-30 seconds.
Q01693817 Nortel recommends that you do not run TDR tests while the device is in a
transient state, such as when units are being rebooted or are joining the stack.
Q01711153 IPFIX may report incorrect byte or packet count due to software limitations.
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Known issues 33
Change Request
Description
Number
Q01720549 In an SMLT environment, all IST traffic (switched or routed) is blocked
from egress on SMLT / SLT ports that are currently in SMLT mode. This is achieved through programming the PORT_TRUNK_EGRESS table corresponding to the IST trunk appropriately. However, when the IST ports and SMLT / SLT ports reside on the same 5695 device, the EGRESS_MASK table needs to be programmed too. Currently, when an IST / SMLT port goes up or down, the corresponding entry in the EGRESS_MASK table is cleared, resulting in a loop. In the Regatta 5.0 code base, this situation is corrected by re-executing the block IST call that reprograms the two tables correctly. This call is made whenever an IST port goes up/down or an SMLT port comes up and the trunk is already in SMLT mode.
To work around this problem, static routes must be used.
Q01721397 For the 10 G or XE port, the oversize counter does not increment.
For the 1 G or regular port, the oversize counter only increments if the packet that it receives is between 1519 and 9216 bytes.
Q01722655 Q01723309
The vlacp port CLI command in Agent v5.1 no longer accepts multicast MAC addresses for the funcmac-addr parameter.
When an ASCII configuration file uploaded from a switch running Agent: v5.0.0 is downloaded to a switch running Agent: v5.1.0, an error, Configuration script execution Failed, is generated if the vlacp port ALL funcmac-addr command in the file is applied to a multicast address.
After you upgrade the agent from Agent: v5.0.0 to Agent: v5.1.0, any multicast MAC address previously configured for the interface funcmac-addr parameter needs to be manually modified to the 5.1 default value of 0.0.0 or a unicast address.
Q01723954 When you configure a DMLT as an IST or SMLT in a stack, Nortel
recommends that you have at least one DMLT link on the base unit. If you have a DMLT link on the base and if the base goes out and temp-base takes over, the traffic recovery process is much faster. Traffic loss is reduced.
Q01728569 Continuous observation of IPFIX data uses a lot of memory on the switch and
burdens the switch CPU to the point where it can’t do other tasks. Therefore, the switch checks the network traffic at each second beat, rather than looking at every packet to maintain IPFIX records. When you use IPFIX, the traffic volumes are an estimate rather than the actual measured flow volume.
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Change Request
Description
Number
Q01728586 There are 4 internal ports for two Cascade links. Internal ports 1 and 2 are
associated with Cascade-Down link and internal ports 3 and 4 are associated with Cascade-Up link.
Message Stack port 1 DOWN or Stack port 2 DOWN means Cascade-Down link is down.
Message Stack port 1 UP or Stack port 2 UP means Cascade-Down link is down.
Message Stack port 3 DOWN or Stack port 4 DOWN means Cascade-Up link is down.
Message Stack port 3 UP or Stack port 4 UP means Cascade-Up link is down.
Q01731450 The OSPF neighbor state intermittently remains in Exch Strt when routing
is disabled and enabled for an ABR with virtual link configured. Workaround: To return the OSPF neighbor to the full state; disable then re-enable routing.
Q01736809 To enable IPSG, you must enable both DHCP Snooping and Arp Inspection
on the switch and configure the port as untrusted.
Q01737603 The correct way to log out of the Web-based management interface is to
go to the main menu and choose Administration > Logout. If you close the browser window, you will be unable to log back into the Web-based management interface for the configured idle period.
Q01736807 To confirm that there are sufficient filter or mask resources available for you
to enable IPSG, use the show qos diag command to display the filter and mask resource use by a port that is a member of a QoS interface group. The number of QoS plus nonQoS masks cannot exceed a total of 15 for each port as there are only 15 available masks on the DUT. Also, the number of QoS plus nonQos rules cannot exceed a total of 128 for each port
Q01737679 In an SMLT environment, the traffic received on an IST port is categorized
into two groups: IST switched and routed packets. To prevent a loop condition, the switch must block IST switched packets (broadcast, multicast, and unknown unicast traffic) from egressing to any SMLT or SLT ports.
However, SMLT switch must be able to forward IST routed packets to any specific SMLT or SLT port as requested by the routing engine. A hardware limitation, ERS55xx blocks both IST switched and routed packets from exiting SMLT or SLT ports. As a result, some of the L3 traffic will be lost. When you configure ERS55xx with both SMLT and L3 dynamic routing protocols (OSPF, RIP), you must avoid the topology in which the L3 traffic received on an SMLT switch is routed to the other SMLT peer because it is a better route.
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Change Request Number
Description
In the preceding figure, 86xx has two routes to reach PC2. The first route is to 55xx-a and then 55xx-c. The second route is to 55xx-b and then 55xx-c. If 8600 uses second route, the traffic from PC1 will never reach PC2.
To force the 86xx to take the first route, you must configure VRRP with Backup/Master enabled on both SMLT switches.
Then static route with the best cost to the VRRP must be added to 86xx to make sure 86xx always chooses 55xx-a as the next hop to reach PC2.
Q01738603 If you use the non-EAP phone feature in Layer 3 mode with DHCP Relay, it
may disrupt Layer 3 connectivity. Nortel recommends that you deploy this feature only in Layer 2 mode.
Q01738540 A hardware limitation means that once you program the filter, it blocks all IPs
that are not allowed. The switch does not show which IP was dropped.
Q01653932 When you enable IPSG on a list of ports, it is enabled one port at a time. In
addition, IPSG will try to setup IP filters with binding entries currently defined for the port. In the case of a trunk, DHCP binding entries are defined only for the first member of the trunk. Workaround: Once you enable IPSG on all trunk ports, administratively disabled and enabled all trunk ports to force DHCP Snooping and IPSG to
update all IP entries to all trunk ports. Q01452496 Do not administratively disable port mirrored ports in MSTP mode. Q01370981 Dynamic passive devices that redo DHCP may be displayed as a PC. Q01446613 The total number of allowed EAP and non-EAP MACs must not exceed 32. Q01252555 You can login after SNAS receives all port info from the switch.
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Change Request
Description Number
Q01362768 Any modifications to the SNAS MAC DB will not take effect on the fly. New in release 6.0 Q01861619 Device Manager, like many SNMP-based applications, uses both SNMP v1
and v2c to discover and communicate with the device being accessed. To
create a community string that will permit login on the device using Device
Manager, you must create two entries for that string in the VACM tables, one
for v1 security model and one for v2c Q01900660 Static mrouter ports that belong to a MLT or a LAG may not become active
after a restart of the peer switch.
Workaround: Disable and enable IGMP snooping for the VLANs on the ports
that should be active. Q01777263 When you change an area from Stub to Non-Stub, former Stub area does
not immediately learn AS External routes. It may take several minutes to
be learned. To pass this issue, execute a
no ip routing/ip routing
Global Configuration command. Q01895538 You need to disable IGMPv3 on an Ethernet Routing Switch 5000 Series
release 6.0 snooping device when you connect it to PP8600 PIM-SSM
devices. Q01905556 After a successful MAC address Non-EAP Local or Radius authentication,
other ports forward traffic to the Non-EAP enabled ports with an unexpected
delay of 20 to 60 seconds. Q01925597 After a restart, pluggable module information may intermittently display
incorrectly through the Console Interface or NNCLI when you view it from
another unit in the stack. Q01925298 If you try to set a static router port as a Port Monitor from the NNCLI, the
setting does not save and an error occurs.
Workaround: Use the Port Mirroring menu in the Console Interface. Q01915680 You cannot capture SLPP PDUs on the emitting device with MAC-based
port mirroring modes. Q01910326 When you use LACP with trunk members from each unit in a stack, the show
lldp local-sys-data dot3 command shows the link from last unit as
Aggregated even after the LACP aggregation does not exist anymore. Q01906362
Q01906362-01
If you connect radius authenticated Non-EAP clients through L2 devices to a
56xx or 55xx unit, and then move one client from an L2 device to another L2
device, user-based policies configured for that client do not move to the new
port with the authenticated client. If you set UBP to high-security-local, the
port will not authenticate the client after the move. Q01902081 Before you download an ASCII configuration file from Device Manager, you
must ensure that another download is not currently in progress with the
ASCIIConfigManualDldStatus field. You can find the field here in Device
Manager:
Edit, File System, ASCIIi Config File, ASCIIConfigManualDldStatus
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Known issues 37
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Description Number
Q01895110 After you restart the stack, some NSNA MAC authenticated devices in the
green VLAN or green filter may remain with red IP although the VLAN
is green. Workaround: Run a shutdown command, followed by a no
shutdown command. Q01849554 The stack picture on Web-based management may not display the unit
order correctly. Q01422549 For 6.x software release, you can only configure STP 802.1d-port-compliance
feature using NNCLI.
Example: Enable 802.1d-port-compliance with NNCLI
5530-24TFD#spanning-tree 802.1d-port-compliance enable
Example: Disable 802.1d-port-compliance with NNCLI
5530-24TFD#no spanning-tree 802.1d-port-compliance
enable
You cannot configure the 802.1d-port-compliance feature with the ASCII file. Q01850763 Multiple ports may display the same NSNA client MAC address if you inject
traffic with the same address in multiple ports while displaying NSNA clients. Q01915112 Workaround: The unicast routes to reach PIM RP and Source must be
through directly connected neighbors. These unicast routes should not
span across the L2 DUT(s). Do not configure an SPT or RPT path for PIM
through the L2 boxes. Q01860831 If you connect a PC behind a phone when the switch is in FO state, the VLAN
ID for the IP phone may be displayed as Red after the SNAS reconnects
to the switch. Q01877773-01
Q01879130-01
For a client that uses a DHCP assigned address: If the IP address is
assigned while the client is in FO VLAN, that address will continue to be used
by client until the lease time expires, even if during this time the client moves
to another NSNA VLAN (which requires a new IP address be assigned to
client through DHCP). Q01891705 When the switch receives continuous routed data IP packets with TTL=1,
OSPF hellos may be dropped and adjacencies may be lost as a result. Q01861555 The traps from MIB S5-Chassis-Trap (s5ctr.mib) send the values of two
objects to the receiver: s5ChasComType, which is a numeric OID of little
use to the user; and s5ChasComOperState, which is a value between 1
and 12. Currently, the objects s5ChasComDescr and s5ChasComSerNum
are not yet available in these traps. Q01890586 After you restart the stack in NSNA solution, some PCs may appear with
0.0.0.0 IP on show nsna client command. However, the PCs have the
right IP and can access network resources. Q01753980-01 If new clients come up while NSNAS is connecting to a switch and is getting
port information, those clients may need to redo DHCP (if they are dynamic
clients). This can be done from Windows command line:
ipconfig /release ipconfig /renew
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38 Known issues and limitations
Change Request
Description Number
Q01923243 Ethernet Routing Switch 5000 Series switches do not guarantee data
integrity if you reset the power during the first 5 mins of operation or during a
(periodic) flash sync operation. Q01895935 ADAC-enabled telephony ports on a base unit may not be re-authenticated
after you reset the stack. Q01893906 This is a boundary condition for a specific scenario. If you take a small
number of source (S) and group (G) entries and keep on changing the (S, G)
values, the buffer fills and there is no room for a new value.
Workaround: Take a number of (S, G) entries and then do not change the
values of (S, G). You may change the value as long as you do not reach the
maximum for Ethernet Routing Switch 5000 Series switches. Q01924380 With short stack cables, the software download may fail repeatedly due to
FCS errors. Replace the stack cable if this happens. Q01920139 PIM:All (S,G) entries do not get installed on SDR or DDR.
Although you may not see this issue in the very first boot, it may happen in
your setup if you do a failover or something else that tries to change the
installed (S,G).
Workaround: a) Keep the number of (S,G) small (under 400) to reduce the
possibility that this problem will occur. b) If you do encounter this issue,
reboot the PIM units in your system to clear the buffer. Q01910052 When you connect PCs with EAP authentication enabled behind IP phones
that are discovered through ADAC, the authentication process may fail after
stack restart.
Workaround: Disable EAP, reboot the stack and then re-enable EAP. Q01906093 If you upload the ASCII configuration file from the switch with the front panel
UI button, it may result in a software exception. Use a different user interface
to upload the ASCII configuration. Q01904918 This is a specific scenario, in which the data is sent through the (distribution
layer) L3 switch (DR) on a VLAN which spans through a L2 switch to another
L3 (non-DR) PIM switch. In a freshly restarted system, you will not see this
issue, but if you reboot the L2 switch, you will not receive the traffic from the
L3 switch (non-DR) that spans in the VLAN across the L2 switch.
Workaround: a) If you have this kind of topology, do not restart the L2 switch
alone. b) If you do reboot the L2 switch and get into this state. then you must
restart the L3 (PIM switches) to reconnect the traffic. Q01920502 Port Mirroring mode XrxYtx does not work (traffic is not mirrored) after a
restart if the X and Y ports are in different MLTs.
Workaround: Disable and enable the port mirroring mode. Q01920498 Port Mirroring mode XrxYtx does not monitor broadcast or multicast traffic (in
X and out Y) if the monitor port and X+Y ports are in different VLANs. Q01916316 When a unit leaves or joins the stack, it disrupts multicast traffic for about
30 seconds.
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Known issues 39
Change Request
Description Number
Q01911582 After you restart the stack, few dynamic ports may not move to Red and
VoIP VLANs. Q01904189 When you authenticate IP Phones with non-EAP or ADAC, and then restart
the base unit or the last unit, not all ports may be authenticated after the
restarted unit rejoins the stack.
Workaround: Disable and then enable ADAC on the respective ports. Q01900513 OSPF hello packets may not be captured on 5530 ports when you use ADST
Mac address based mirroring mode. Q01897761 When you use Device Manager with IGMP, it may display some incorrect
information in the ActiveQuerier and QuerierPort fields under VLAN,
VLANs, Snoop menu. This is a known issue. Q01895450 When you authenticate IP Phones using non-EAP and ADAC becomes
operationally disabled, it may take up to 300 seconds (5 mins) until EAP
clears the multihost non-eap-mac table. If this is not desirable, EAP can
be bounced on the respective ports. Q01895070 After you restart a switch or stack with Fail Open enabled (NSNAS connected
in the network), some devices may show as a green IP in the red VLAN. If you
run the shutdown/ no shutdown command, the ports on stack will resolve
the issue for both PCs and passive devices. Or, you can enter the ipconfig
/release; ipconfig /renew command on the PC command line. Q01893356 After you restart the stack, some NSNA MAC authenticated devices (in the
green VLAN or green filter) may remain with a red IP although the VLAN is
green. Run the shutdown/ no shutdown command to resolve the issue. Q01865091 NSNA static MAC authenticated clients may not be re-authenticated on Base
unit after it is restarted. Q01440362 If you use DHCP relay on multiple hops, Nortel recommends that you
configure the DHCP forward path on all hops to the DHCP server. Q01909890 If you use a policy to filter a multicast flow with a system classifier with
known-mcast or unknown-mcast options configured, it will only match non-IP
traffic for the Ethernet Routing Switch 5600 Series. Q01921407 In certain topologies, when you connect multiple PIM routers to the same L2
device, both the DR and non-DR routers may install the same OIF, resulting
in duplicate packets for receivers across the L2 device.
Workaround: Connect only a single PIM router to the L2 device. Q01929584-01 When you use Web-based management with an IPv6 address, the response
time may be noticeably slower than when you use Web-based management
with an IPv4 address. Q01839477 If you unplug an IP phone that is on a call or receives line tone, all of the
other phones on the VoIP VLAN receive UDP packets (30-35 packets/sec)
with the Source Address=BCM and Destination Address=IP-phone of the
removed IP phone. The packet flood lasts 20-25 seconds.
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40 Known issues and limitations
Change Request
Description Number
Q01937764 The rate for multicast traffic on 10 G ports on the 5000 Series can fluctuate
with 120 groups and 240 clients at smaller packet sizes. This is because
10 G ports have multicast rate limiting set to 10 percent by default. If you
increase the allowed rate or disable rate limiting on the 10 G ports, you will
fix the issue. Q01939961 When you configure multiple port-mirroring instances with MAC-based
address modes, the MAC address table in WEB/CI only displays the MAC
address from the first port mirroring instance. Q01931881 Do not restart the base unit of a stack that previously forwarded neighboring
ports on an Ethernet Routing Switch 8600. If you restart only the base unit
of the stack, the Spanning Tree neighbor ports may go to Spanning Tree
Blocking state.
Workaround: Restart the entire stack. Q01945517 Starting with release 6.0, the Ethernet Routing Switch 5000 Series switches
support four SSH sessions. Nortel recommends that you have no more than
two concurrent SSH Console sessions. The remainder of the SSH sessions
are intended for NSNA communication with the SNAS. Q01946719 The load balance will not take effect on Ethernet Routing Switch 5500 Series
units if the port of the L3 ingress traffic is on the same ASIC with an active
trunk member. Q01893913 In the PIM mroute table, the number of S, G entries displayed may exceed
the number of supported entries when scaling beyond the supported limits. Q01901336 The switch cannot forward multicast traffic through Non-Local Static Routes.
The switch does forward multicast traffic through other route types such
as a local next-hop. Q01905825 TDR tests on a 100 MB-only capable unit do not show the expected results.
There is an inconsistency in showing the TDR results between 56XX units
and 55XX units. On both kind of units the TDR results in the situation from
above will not show the Pair1 and NormalCableLength as expected.
On a 56XX unit, TDR test shows the Pair1Length as 0 Meter. On a 55XX
unit, TDR test shows the Pair1Status as Forced mode, with a much higher
value for Pair1Length than normal. Q01897761 When you use Device Manager with IGMP, you will see some incorrect
information displayed about ActiveQuerier and QuerierPort fields when you
click VLANs, VLANs, Snoop . This is a known issue. Q01426394 With nine VRRP instances and overnight traffic, you may observe a single
VRRP bounce. Q01932595 When you enable IGMP proxy, the display may not show all IGMP groups
on upstream routers. This is a display issue only.
Copyright © 2008., Nortel Networks
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Known issues 41
Change Request
Description Number
Q01939345 The Device Manager does not display the status of all power supplies with
the front panel LEDs. You can see the status of the Power supply under
Edit, Chassis, Power Supply. Q01945335 On an Ethernet Routing Switch 56xx unit, port mirroring mode XrxYtx does
not mirror broadcast, multicast and unknown unicast if the X and Y mirrored
ports are in different MLTs. Q01948343 In some situations on a pure 56xx stack (mirrored ports are not on the
same unit in the stack or traffic enters one unit and exits another one from
the stack), port mirroring modes XrxYtx, XrxYtxOrYrxXtx, XrxOrYtx and
MAC-based mirroring modes may multiply the unicast traffic that exits the
stack. The problem is not present if multicast or broadcast traffic is mirrored.
The problem is not present in port mirroring modes XrxYtx, XrxYtxOrYrxXtx,
or XrxOrYtx if the monitor port is placed on base unit. Q01950311 If you enable ARP-inspection on NSNA or ADAC Voice VLAN, the IP-phones
only work properly on the base unit. Q01950071 If you disable VLACP on an Ethernet Routing Switch 5698 unit before you
start the unit, you cannot enable the unit with the vlacp enable command
in Global Configuration mode. Workaround: Disable, then enable VLACP
on the unit. Q01954180 You cannot disable the AlwaysBroadcast parameter on a VLAN when you
toggle off from Device Manager or set the value from the MIB Browser tool. Q01953968 In a standalone ERS5632FD unit or stack that contains an ERS5632FD
unit, if the system uses 10 G ports in an MLT configuration, do not enable
DHCP snooping globally. If you enable DHCP globally, it could cause the
unit to restart.
If you use this configuration, upgrade the stack to the maintenance software
release 6.0.1 from the Technical Support site at w
ww.nortel.com as described
in the Release Notes. With release 6.0.1, you can enable DHCP snooping. Q01914709 When you download the ACG file with default settings from a SSH session,
the ssh commands will fail (this is because SSH is already enabled on that
unit). Q01947854 When a PIM interface comes up, it identifies as a DR. Then DR election on
that multi-access link happens after exchange of hello messages. If for some
reason DR is flapped, by the time DR is down, the non-DR becomes the DR
and therefore it installs (*,G) and (S,G) for a particular steam. When the
original DR comes back again, the re-election of DR happens with exchange
of hello messages.
In this time frame (Before DR re-election is completed), if the IGMP reports
and multicast traffic are sent on the multi-access link, then both non-DR and
DR PIM routers may install the (*,G) & (S,G) entry as DR. This is an assert
condition. The assert mechanism in this scenario may not work and may lead
to duplicate packets as both DR and non-DR will have (S,G) for the same
stream for a single multi-access link.
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42 Known issues and limitations
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Description Number
To avoid this, make sure that only the DR has the (*,G) entry in the system.
Workaround: If this condition occurs, disable and enable PIM on the non-DR
and DR. Q01944831 With release 6.0.0, there may be connectivity issues with Telnet and
Web-based management connections to the IPv6 management interface
when the traffic between the Ethernet Routing Switch 5000 Series switch and
the host PC passes through a switch that drops frames larger than 1522
bytes. This happens because the default MTU for the IPv6 management
interface is 1522 bytes, and must be set to a lower value of 1500 bytes.
To change the MTU for the IPv6 interface from the Command Line Interface,
type the following
enable
configure terminal
interface vlan 1
ipv6 interface mtu 1500
The following table lists known Ethernet Routing Switch 5000 Series considerations:
Table 8 Ethernet Routing Switch 5000 Series considerations
Item Description
1
Some terminal programs can cause the Console Interface to crash if you enter a RADIUS secret containing the character “k”. The issue has been reproduced using Tera Term Pro (version 2.3), as well as Minicom (version 2.1) on a Linux
system. 2 3
Nortel recommends that you avoid using MAC security on a trunk (MLT).
Failed attempts to log in (using TACACS+ authentication and accounting) are
not stored in the accounting file. 4
When switches are in MSTP mode and connected using a trunk (MLT), and at
least one MSTI is configured, the switch can return an incorrect STPG root if you
change the mode to STPG and reset the switches. 5
When you use the JDM/Web to configure and add VLAN ports to an STG other
than the default STG, STG membership of the port may change. In that case,
the new STG participation of that port will be disabled.
Workaround: Enable participation of the ports in the new STG after you enable
the STG.
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Item Description
6
On the 5530-24TFD, the following (NT-OCP) SFPs cannot be inserted side by
side (that is, in neighboring slots) because of the SFP size. The SFPs are listed
as manufacturer part number/Nortel part number:
TRP-G1H5BC470N4 / AA1419025
TRP-G1H5BC490N4 / AA1419026
TRP-G1H5BC510N4 / AA1419027
TRP-G1H5BC530N4 / AA1419028
TRP-G1H5BC550N4 / AA1419029
TRP-G1H5BC570N4 / AA1419030
TRP-G1H5BC590N4 / AA1419031
TRP-G1H5BC610N4 / AA1419032
TRP-G1H7BC470N4 / AA1419033
TRP-G1H7BC490N4 / AA1419034
TRP-G1H7BC510N4 / AA1419035
Known issues 43
TRP-G1H7BC530N4 / AA1419036
TRP-G1H7BC550N4 / AA1419037
TRP-G1H7BC570N4 / AA1419038
TRP-G1H7BC590N4 / AA1419039
TRP-G1H7BC610N4 / AA1419040
7
While downloading the image file, you may receive the following error message:
"Error reading image file."
Workaround: Typically, this issue can be resolved by simply restarting the image
download. If this does not resolve the issue, Nortel recommends that you try an
alternate method to download the image to the switch (that is, the Web Interface). 8
When a remote server log is configured and the remote logging is enabled, the
CLI audit task sends messages to the syslog server regardless of the logging
level. 9
The IPFIX sampling data rate cannot be changed because of a related hardware
limitation.
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44 Known issues and limitations
Item Description
10
Release 5.1 introduces a Demo License, which enables OSPF, ECMP, VRRP,
SMLT, and IPFIX, or any combination thereof for a period of 30-days. At the
end of the 30-day trial period, the features will be disabled, with the exception
of SMLT. Due to the manner in which SMLT is implemented through cabling,
and the fact that Spanning Tree Protocol needs to be disabled, a loop would
be formed on the network if SMLT was disabled as a feature. Therefore, the
following actions will take place to minimize the potential network impact.
Three traps are sent.
The first trap is sent five days prior to expiration of the license.
Trap: bsnTrialLicenseExpiration: Trial license 1 will expire in 5 day(s).
The second trap is sent one day prior to the expiration of the license.
Trap: bsnTrialLicenseExpiration: Trial license 1 will expire in 1 day(s).
The last trap is sent upon termination of the license.
Trap: bsnTrialLicenseExpiration: Trial license 1 has expired.
11
12 13
At this point, all license features are disabled except SMLT. SMLT will remain
enabled until there is a stack/unit reset. Once the stack/unit is reset, the feature
will be disabled, and a loop will be formed if there has been no intervention to
remove/disable the ports participating in the IST.
Therefore, Nortel recommends that upon receiving the first trap that the
administrator begin to manually disable that feature and ensure that any cabling
loop is removed.
When you configure IPFIX to work with NetQoS, Nortel recommends that you
disable the SNMP polling by NetQoS device. To do this, remove the community
string associated with the ERS 5500 Series switch on NetQoS device.
Nortel recommends that you do not enable IP Source Guard on trunk ports.
Nortel recommends that you do not enable Critical-IP functionality with VRRP in
an SMLT environment.

VLACP issue

It has been found that in some situations, using VLACP on the Ethernet Routing Switch 5500/5600 the switches will remove a link from service due to variations in the arrival time of VLACP messages (VLACP PDUs) from the far end. The issue may exist between the Ethernet Routing Switch 5500/5600 and Ethernet Routing Switch 8300/8600 when running short timers and default timeout interval of 3 time-outs. The Ethernet Routing Switch 5500/5600 switches maintain a rolling history of the last 3 received VLACP PDUs and calculate the time variance across and between these
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VLACP messages. If the time variance of the last 3 VLACP PDUs falls outside predefined thresholds, the Ethernet Routing Switch 5500/5600 will remove the link from service.
As a workaround, customers should increase the VLACP timeout value from the default value of 3 to 5 or more. This will stop the Ethernet Routing Switch 5500/5600 switches from taking the link down due to the above mentioned variations in VLACP timing. It should be noted that even though the timeout value has been set to 5, due to the sampling function, if variance occurs outside the threshold for any 3 consecutive VLACP PDUs then the link will be removed from service until VLACP can re-establish a correctly timed communication. However, a value of 5 has been determined to be sufficient for this workaround.

Port or ifIndex offset issue

In the past, the SNMP ifIndex assumed that each unit had a maximum of 64 ports, so logical port 65 would be unit 2, port 1 in the stack. Now that Nortel offers 98 port units on the Ethernet Routing Switch 5600 Series, there are 128 logical port numbers for each unit. That means that port 129 is unit 2, port 1.
Filter resource consumption 45
At the SNAS, for 6.0 stacks or switches, use switch_type ERS5500. If you restart the switch or stack after the stack is up and stable, SNAS
may display incorrect unit and port numbers with a 64 offset, instead of a 128 offset. This is only a display issue and the unit and port numbers are correct at the switch.
To correct the display at the SNAS, disable and enable the switch at the SNAS. The display now shows the correct unit and port numbers at the SNAS.
If your PCs have a connectivity issue, reset DHCP. The next SNAS patch release will include the Ethernet Routing Switch 5600
Series option and will resolve this issue. (Q01949332)

Filter resource consumption

Various Ethernet Routing Switch 5000 Series applications consume filter resources. These filter resources are a combination of masks and filters, sometimes also referred to as rules. A filter specifies the bit pattern to match, while a mask specifies the bit position to be matched and the evaluation precedence of the filters. Some applications (for instance, BaySecure, Port Mirroring, IGMP) require a set number of masks and filters enable them.
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46 Known issues and limitations
The following table summarizes the applications that require mask and filter resources.
Table 9 Mask and filter requirements for applications
Application
Category
Ethernet Routing Switch 5500 Series Broadcast ARP and
Non QoS
ARP Inspection DHCP Relay or DHCP
Non QoS Snooping or NSNA DHCP
QoS (default untrusted
QoS policy)
QoS (trusted policy) QoS QoS (NTonNT) QoS IGMP Non QoS Port Mirroring
Non QoS (MAC-based)
EAP Authetication
Non QoS (EAPoL packet filter)
BaySecure
Non QoS (ERS5520/30 only)
EAP MHMA Allowed
Non QoS Clients (5520/30)
IPFix Non QoS
Masks required Filters required
11
12
22
119 14 210 22
11
132
132
11
QoS Interface
QoS Applications
NSNA MAC Intruder Non QoS NSNA (R/Y/G filters) QoS ADAC Non QoS RIP Non QoS UDP Bcast Non QoS VRRP Non QoS OSPF Non QoS IP Source Guard Non QoS Ethernet Routing Switch 5600 Series Broadcast ARP and
Non QoS ARP Inspection
Nortel Ethernet Routing Switch 5000 Series
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17 17
132 5 11 11 11 13 13 110
11
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Filter resource consumption 47
Application
DHCP Relay or DHCP Snooping or NSNA DHCP
QoS (default untrusted policy)
QoS (DAPP with status tracking)
QoS (NTonNT) QoS Port Mirroring
(MAC-based) EAP Authetication
(EAPoL packet filter) IPFix Non QoS NSNA MAC Intruder Non QoS NSNA (R/Y/G filters) QoS ADAC Non QoS RIP Non QoS UDP Bcast Non QoS
Category
Non QoS
QoS
QoS
Non QoS
Non QoS
Masks required Filters required
12
22
11
14 12
12
11 132 5 11 11 11
8
VRRP Non QoS OSPF Non QoS IP Source Guard Non QoS PIM Non QoS
On the Ethernet Routing Switch 5500 Series switches, each port has 16 masks and 128 filters available. By default, 1 mask and 1 filter are statically consumed by the system for ARP filtering, leaving 15 available masks and 127 available filters for QoS and other non QoS applications to configure dynamically.
On the Ethernet Routing Switch 5600 Series switches, the resources are shared across group of ports. Each group of ports has 16 masks and 256 filters available for each mask. By default, the system statically consumes one mask and one filter for ARP filtering on all ports, leaving 15 available masks for each group and 256 available filters for each mask and group for QoS and other non QoS applications to configure dynamically.
Masks and filters inventory check
You can use the show qos diag command to assess the current filter resource usage for each port on the Ethernet Routing Switch 5000 Series switches. The show qos diag command displays the number of QoS
13 13 111 11
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48 Known issues and limitations
masks and filters and non-QoS masks and filters consumed on each port. You can determine whether an application that requires filter resources can be enabled on a port by verifying that the number of available masks and filters meet the mask and filter requirements of that particular application.
On the Ethernet Routing Switch 5500 Series switches, the available masks and filters available on a port can be determined by adding the total number of QoS and non QoS masks in use and the total number QoS and non QoS filters in use on a port and then subtracting that number from 16 masks and 128 filters, respectively.
On the Ethernet Routing Switch 5600 Series switches, the output of the show qos diag allows you to count the unused masks to determine the number of available masks for a particular port. The 5600 Series switches share resources across a group of ports. The filters used by QoS or non QoS applications on a port for a specific mask determine the available filters for that mask for all ports from that group.
On the Ethernet Routing Switch 5600 Series switches, you can determine the number of the filters available for a maskfrom a group of ports by adding the total number of QoS and Non QoS filters in use and subtracting that number from 256. If the number of filters in use for a mask is equal to 256, that mask cannot be used on other ports from the same group.
On the Ethernet Routing Switch 5500 Series switches, to enable IP Source Guard on a port requires 1 mask and 10 filters. To verify that IP Source Guard can be enabled on port 5, you can view the show qos diag output display and determine that port 5 is currently using a total of 4 masks (QoS plus non-QoS) and 5 filters (QoS plus non-QoS). This means that 12 masks and 123 filters are available for use, which meets the IP Source Guard requirement of 1 mask and 10 filters. The following figure shows the show qos diag display before enabling IP Source Guard on port 5.
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Filter resource consumption 49

Figure 1 show qos diag before

The following figure shows the show qos diag display after enabling IP Source Guard on port 5.

Figure 2 show qos diag after

On the Ethernet Routing Switch 5600 Series switches, to enable IP Source Guard on a port requires 1 mask and 11 filters. To verify that IP Source Guard can be enabled on port 5, you can view the show qos diag output display and determine that port 5 is currently using a total of 4 masks (QoS plus non-QoS). IP Source Guard uses the next available mask and from the output display, you can see that there are 256 filters available for mask 14,
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50 Known issues and limitations
which meets the IP Source Guard requirement of 1 mask and 11 filters. The following figures show the show qos diag display before enabling IP Source Guard on port 5.

Figure 3 show qos diag before

Figure 4 show qos diag before continued

The following figures show the show qos diag display after enabling IP Source Guard on port 5.
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Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008
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Figure 5 show qos diag after

Figure 6 show qos diag after continued

Filter resource consumption 51

QoS Interface Security Application

The QoS Interface Security application targets a number of common network attacks. Support includes ARP spoofing prevention, DHCP snooping, DHCP spoofing prevention, detection for the common worms SQLSlam and Nachia; and the Denial of Service (DoS) attacks Xmas, TCP SynFinScan, TCP FtpPort, and TCP DnsPort. Due to the lack of filter resources (i.e. masks) to enable the QoS Interface Security application as a whole, you can select individual security applications.
This application only runs on the Ethernet Routing Switch 5500 Series switches.
The following table summarizes the mask and filter resource requirements for individual QoS Interface Security applications.
Copyright © 2008., Nortel Networks
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Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008
Page 52
52 Known issues and limitations
Table 10 Mask and filter resource requirements
QoS Interface Security Application
ARP Spoofing Prevention DHCP Snooping DHCP Spoofing Prevention DoS SQL Slam DoS Nachia DoS Xmas DoS TCP SynFinScan DoS TCP FtpPort Dos TCP DnsPort QoS BPDU blocker interface
Masks required Filters required
55 11 22 11 11 11 11 22 22 11
Copyright © 2008., Nortel Networks
.
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
NN47200-400 04.01 Standard
6.0 12 December 2008
Page 53
Page 54
Nortel Ethernet Routing Switch 5000 Series
Release Notes — Release 6.0
Copyright © 2008, Nortel Networks All Rights Reserved.
Publication: NN47200-400 Document status: Standard Document version: 04.01 Document date: 12 December 2008
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