Nortel Passport 1100 Manual de instrucciones

Part No. 212629-A

February 2002

4401 Great America Parkway

Santa Clara, CA 95054

Release Notes for the

Passport 1000 Series Software

Release 2.0.7.8

*212629-A*

212629-A

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 Inc.

Trademarks

NORTEL NETWORKS is a trademark of Nortel Networks.

LinkSafe and Nortel Networks are trademarks of Nortel Networks.

Passport and Accelar are registered trademarks of Nortel Networks.

Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.

All other trademarks and registered trademarks are the property of their respective owners.

Statement of conditions

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.

Release Notes for the Passport 1000 Series Software Release 2.0.7.8

Introduction

These release notes for Passport®software release 2.0.7.8 describe bug fixes in the

Nortel Networks™Passport 1000 Series switch software that have been

implemented since release 2.0.7.7. This document also describes known issues

and bugs that still exist in Passport software release 2.0.7.8.

These release notes contain the following topics:

•“Upgrading your software,”(next)

•“Recommendations and feature-specific information about release 2.0.7.8”on

page 5

•“Access policy support”on page 13

•“Bugs fixed in release 2.0.7.8”on page 14

•“Known issues”on page 18

•“Related publications”on page 19

•“Hard-copy technical manuals”on page 20

•“How to get help”on page 20

4Upgrading your software

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Upgrading your software

Software release 2.0.7.8 includes updates to the run-time software and boot

monitor software as follows:

•Run-Time Software Version 2.0.7.8 (p10a2078.img)

•Boot Monitor Software Version 2.0.7.8 (p10b2078.img) supplied as a Boot

Monitor Updater

•Java Device Manager (JDM) Version 5.5 (for Microsoft ®Windows ®

95,Windows 98, Windows 2000, and Windows NT ®: jdm_win.exe; for

UNIX:jdm_unix.tar.Z)

For the latest information about software issues, always refer to the

Passport Products documentation site from the Nortel Networks Web page

(http://www.nortelnetworks.com/documentation) or contact Nortel Networks

Customer Support at 1-800-4NORTEL.

Note: Before upgrading your software from earlier versions, back up

your current configuration file. Version 2.0.7.8 configuration files

contain configuration options that are not compatible with run-time

options in software version 2.0.7.0 or earlier. It is important to back up

the current configuration file before upgrading in case you must revert to

a previous version of the run-time image.

Warning: Software release 2.0.7.8 requires 32 MB of DRAM. If you do

not have 32 MB of DRAM, an error message appears when you boot up

the Passport 1000 Series switch.

The memory upgrade kit (AA0011017) is available for the XLR1297SF

module and increases DRAM to 32 MB. If your Passport 105x or 11x0

routing switch has 16 MB of DRAM, contact your Nortel Networks sales

representative or authorized reseller to upgrade your switch.

Recommendations and feature-specific information about release 2.0.7.8 5

Release Notes for the Passport 1000 Series Software Release 2.0.7.8

Recommendations and feature-specific information

about release 2.0.7.8

This section describes basic recommendations and miscellaneous information and

pertinent feature-related information about the Passport 1000 Series switch

software release 2.0.7.8, and includes the following topics:

•Recommendations and miscellaneous information

•Multicast in release 2.0.7.8

•STG and BPDU clarification

•High-priority switching

•Console and Telnet screen message displays

•Clarification on MLT/STP pathcost

•Disabling IPX NetBIOS propagation

•Flash commands

•IPX RIP and IPX SAP pacing (frame rate)

6Recommendations and feature-specific information about release 2.0.7.8

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Recommendations and miscellaneous information

Note the following recommendations and miscellaneous information about

Passport 1000 Series switch software release 2.0.7.8:

•Changes have been made to Passport 1000 series switches from software

release 2.0.7.3 onwards in terms of selection of the best path to an ASBR if

more than one path exists. Due to these changes, Nortel Networks

recommends that you not interconnect a switch running software release

2.0.7.3 or higher to a switch running a software release 2.0.7.2 or lower.

(Q00168665)

•Passport 1000 Series switch software release 2.0.7.8 does not support global

filters. Configuration information relating to global filters is ignored. When

booting up with software version 2.0.7.8, the following message is displayed

on the screen:

Global filters are not supported in this release.

•When you create a MultiLink Trunking (MLT) group through the command

line interface (CLI), the resulting MLT is put into the default VLAN (VLAN

1). The MLT should then be assigned to other VLANs as appropriate.

•Always set a specific Enforce Operational Configuration (EOC) mode (refer

to the Passport 1000 Series switch software release 2.0 release notes for more

information) instead of allowing the default EOC mode (which is to the

lowest-level module in the switch) in order to avoid losing functionality in

case a lower-revision module is installed in the switch.

•Terminology has been modified in Device Manager and the CLI so that

“trunk”is used only in reference to MultiLink Trunking (MLT). What were

previously referred to as trunk ports (in contrast to access ports) are now

referred to as tagged ports.

•Gigabit LinkSafe™configurations must have autonegotiation enabled. Setting

autonegotiation to False is not supported on gigabit LinkSafe modules in

redundant configurations. However, autonegotiation can be set to False if a

gigabit LinkSafe module is connected in a nonredundant setup to a gigabit

module not supporting autonegotiation.

Recommendations and feature-specific information about release 2.0.7.8 7

Release Notes for the Passport 1000 Series Software Release 2.0.7.8

•Nortel Networks recommends against configuring VRRP on IP-subnet-based

VLANs because there is no hardware support for this configuration in the I/O

modules and all traffic forwarding must be handled by the CPU. This situation

can cause high CPU utilization and affect performance. (105851-1)

•VRRP running over IEEE 802.1Q tagged ports requires ARU3 modules (-B

hardware). (115732-1, 130826-1)

•On a Passport 1200 Switch, IP forwarding is enabled by default. (142874-1)

Multicast in release 2.0.7.8

The two software features DVMRP and IGMP have known problems that can

cause general operational issues with Passport 1000 Series switches. Therefore, IP

Multicast is not supported in release 2.0.7.8 or earlier releases.

STG and BPDU clarification

The following two controls regulate the behavior of the Spanning Tree Protocol

(STP) in a spanning tree group (STG) on a Passport 1000 Series switch:

•A global parameter to enable or disable STP at the STG level

•Port parameters to enable or disable STP on individual ports

When the STP is globally disabled on the STG, received bridge protocol data units

(BPDUs) are handled like a MAC-level multicast and flooded out the other ports

of the STG. Note that an STG can contain one or more VLANs. Remember that

MAC broadcasts are flooded out on all ports of a VLAN; a BPDU is a MAC-level

message, but the BPDU is flooded out on all the ports in the STG, which may

encompass many VLANs.

8Recommendations and feature-specific information about release 2.0.7.8

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When STP is globally enabled on the STG, BPDU handling depends on the

following STP setting of the port:

•When STP is enabled on the port, received BPDUs are processed in

accordance with STP.

•When STP is disabled on the port, the port will always be in a forwarding

state, received BPDUs are dropped and not processed, and no BPDU is

generated.

To configure STP on STGs with the CLI, use this command:

config stg <sid> group-stp <enable|disable>

To configure STP on a port with the CLI, use this command:

config ethernet <ports> stg <sid>stp <enable|disable>

To configure STGs with Device Manager, choose VLAN > Stg > Configuration.

To configure STP on a port with Device Manager, choose the port and the

spanning tree tab.

High-priority switching

The Passport 1000 Series switch operates in one of two modes: Best Effort mode

or Priority mode. The factory default setting is Best Effort mode; in this mode, all

traffic is treated with the same priority. In Priority mode, high-priority traffic

flows through the switch fabric using a high-priority data path; output buffers are

reserved for high-priority traffic. This does not apply to IEEE 802.1p packets.

Nortel Networks recommends that you enable Priority mode on switches in very

heavy traffic situations. Enabling Priority avoids delaying vital high-priority

network traffic, including BPDUs and routing protocol information. To enable

Priority using the CLI, enter:

config sys set flags highpriomode true

Note: The switch must be rebooted before this change takes effect.

Recommendations and feature-specific information about release 2.0.7.8 9

Release Notes for the Passport 1000 Series Software Release 2.0.7.8

Console and Telnet screen message displays

Table 1 describes the following messages that are not displayed on the console or

Telnet screens using the config log screen on command.

Table 1 Non-displayed CLI messages

Note: Even though these message are not displayed, they are still added

to the log file.

cpu switch over, stand-by CPU become master

Link Down

Dual Connector Link Down

Link Up

Dual Connector Link Up

Card Down

Card Up

Spanning Tree New Root

Spanning Tree Topology Change

BackupConnectorDown

BackupConnectorUp

Ospf Nbr State Change trap:

OspfIfConfigError trap:

OspfIfAuthFailure trap:

OspfIfStateChange trap:

OspfVirtNbrStateChange trap:

OspfVirtIfConfigError trap:

OspfVirtIfAuthFailure trap:

OspfVirtIfStateChange trap:

Power Supply Down

Fan Down

Link Oscillation

Mac Violation

Power Supply Up

10 Recommendations and feature-specific information about release 2.0.7.8

212629-A

Clarification on MLT/STP pathcost

This section clarifies MLT/STP pathcost when adding or removing ports in a MLT

group.

•When adding ports to a MLT group configured with default pathcost, the

pathcost value is equally distributed among the MLT ports; the higher the

number of ports in a MLT, the lesser the path cost.

•When the pathcost value of any one MLT port is administratively configured,

or if a port with an administratively configured pathcost is added to a MLT

group, the remaining MLT ports exhibit the same pathcost value.

•When removing a port from a MLT group, the pathcost value of all the ports

in a MLT revert to the default value. (Q00072320)

Disabling IPX NetBIOS propagation

With the release of Passport 1000 Series switch software version 2.0.4 and higher,

you can disable IPX NetBIOS (type 20) propagation. You can enable or disable

IPX NetBIOS (type 20) propagation globally, that is, on all IPX interfaces in the

entire chassis.

You can configure this feature using the CLI. The CLI command to enable or

disable IPX NetBIOS (type 20) propagation is

config ipx set netbios <on/off>

To view the current state of IPX NetBIOS propagation, use the config ipx set

info command.

Note: The option to enable or disable IPX NetBIOS propagation is

associated with IPX routing, so it is relevant only to switches with the

ARU3 module (Rev B) and with IPX enabled.

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