Allied Telesis 4000 Series Manual de instrucciones

Software Maintenance Release Note

Software Version sb275a05

For SwitchBlade 4000 Series Switches

Introduction

This software maintenance release note lists the issues addressed and

enhancements made in maintenance version sb275a05 for Software Release

2.7.5A on existing models of SwitchBlade series switches. Release file details

are listed in Table 1.

This maintenance release note should be read in conjunction with the

following:

■the documentation you received with Software Release 2.7.5A

■the SwitchBlade Document Set for Software Release 2.7.3 (Document

Number C613-03100-00 REV A), available from:

www.alliedtelesis.co.nz/documentation/documentation.html

Caution: Using a software maintenance version for the wrong model may cause

unpredictable results, including disruption to the network.

Information in this release note is subject to change without notice and does not

represent a commitment on the part of Allied Telesis Inc. While every effort has

been made to ensure that the information contained within this document and

the features and changes described are accurate, Allied Telesis Inc. can not

accept any type of liability for errors in, or omissions arising from the use of this

information.

Table 1: Release file details for release sb275a05

Maintenance Release Date 7 February 2007

Compressed Release File Name sb275a05.rez

Compressed ReleaseFile Size

3764560

GUI Resource File Name d_sb8e29.rsc (8-slot chassis)

d_sb4e29.rsc (4-slot chassis)

2 Enabling and installing this Release Software Maintenance Release Note

Version sb275a05

C613-10464-00 Rev H

Some of the issues addressed in this Maintenance Release Note include a level

number. This number reflects the importance of the issue that has been

resolved. The levels are:

Enabling and installing this Release

To use this maintenance release you must have a base release license for

Software Release 2.7.5A. Contact your distributor or reseller for more

information.

To enable this release and install it as the preferred release, use the commands:

enable rel=sb275a05.rez num=2.7.5

set install=pref rel=sb275a05.rez

Level 1 This issue will cause significant interruption to network services, and

there is no work-around.

Level 2 This issue will cause interruption to network service, however there

is a work-around.

Level 3 This issue will seldom appear, and will cause minor inconvenience.

Level 4 This issue represents a cosmetic change and does not affect network

operation.

Software Version sb275a05 3

Version sb275a05

C613-10464-00 Rev H

Features in sb275a05

Software maintenance version sb275a05 includes all resolved issues and

enhancements in earlier 2.7.5A versions, and the resolved issues and

enhancements in the following tables.

Level 1

No level one issues

Level 2

CR Module Level Description

CR00009347 GUI 2 It was not possible to use the GUI to add untagged ports to the default

VLAN.

This issue has been resolved.

CR00010874 IP Gateway

OSPF

2Previously, the switch discarded multicast OSPF packets that it received on

unnumbered PPP interfaces. This prevented OSPF from working across

unnumbered PPP interfaces.

This issue has been resolved.

CR00013466 Switch 2 Previously, if a JDSU XFP was used in the AT-SB4541 10G line card, the

switch rebooted when executing the command show switch port.

This issue has been resolved.

Also, the XFP LED on the 10G line card used to flash amber when many

types of XFPs were installed without a link.

This issue has also been resolved. When an XFP is installed, enabled, and

without a link, the XFP LED is now solid green.

CR00013678 GUI

File System

2It was not always possible to save the switch configuration by using the

Save button on the GUI. Sometimes the GUI reported the following error

instead of saving the configuration:

"Save failed: SYSR busy, try create config file when transfer complete"

This issue has been resolved.

CR00013823 Switch 2 In very rare circumstances, a port could stop transmitting traffic if its speed

was modified or it was reset while under heavy traffic load.

This issue has been resolved.

CR00013862 IP Gateway 2 If a network loop lasted for a day or longer, the switch ran out of memory

and rebooted.

This issue has been resolved. The switch now conserves memory in these

extreme circumstances.

CR00014124 Switch 2 When the master switch controller was in slot B and a slave controller was

in slot A, the Layer 2 multicast table for AT-SB4541 10G line cards could

become incorrect. This caused loss of connectivity.

This issue has been resolved. The Layer 2 multicast table now reflects the

correct configuration when the master controller is in slot A or slot B.

4 Features in sb275a05 Software Maintenance Release Note

Version sb275a05

C613-10464-00 Rev H

Level 3

Level 4

No level four issues

CR00015071 IP Gateway 2 Routing over a PPP interface could fail if the switch had a default route out

an Ethernet port. The default route switched all packets, even those

destined for the PPP interface.

This issue has been resolved. The resolution involves adding routes over

the PPP interface to the switch hardware tables with an instruction to trap

these packets to the CPU. Therefore these routes now appear in the

hardware tables, and can be displayed by using the command show

switch table=ip.

CR00015132 Switch

GUI

2If a trunk group did not have any ports associated with it, viewing the

Trunk page in the GUI caused the switch to reboot.

This issue has been resolved.

CR00015190 Switch 2 When multicast data was being forwarded at L2 through the switch

during startup and a slave switch controller was present, the switch

sometimes rebooted.

This issue has been resolved.

CR00015697 Switch 2 Mirroring the traffic on port 1 of any line card caused the switch to lose

packets.

CR Module Level Description

CR00011444 Asyn 3 If information was sent to a console (asyn) port that had no cable plugged

into it, excessive CPU usage occurred.

This issue has been resolved.

CR00012858 DHCP 3 Previously, it was not possible to have multiple static DHCP entries with the

same client ID (MAC address), even if the static entries were for different

DHCP ranges.

This issue has been resolved. You can now add static DHCP entries for a

given MAC address to multiple ranges. Note that you cannot have

multiple entries for a given MAC address on the same range.

Software Version sb275a05 5

Version sb275a05

C613-10464-00 Rev H

Enhancements

CR Module Level Description

CR00013351 IGMP

snooping,

EPSR, RSTP

-A new feature has been added to IGMP snooping, to minimise loss of

multicast data after a topology change on networks that use EPSR or

spanning tree (STP, RSTP, or MSTP) for loop protection and IGMP

snooping.

For more information, see “IGMP Snooping Query Solicitation

(CR00013351)” on page 19.

CR00014222 IGMP

snooping,

Switch,

VLAN

-IGMP snooping learns which ports have routers attached to them, so it

can forward relevant IGMP messages out those ports. By default,

snooping identifies router ports by looking for ports that receive specific

multicast packets (such as IGMP queries, PIM messages, OSPF messages,

and RIP messages).

In some network configurations, this learning process cannot identify all

router ports. For such networks, this enhancement enables you to

statically configure particular ports as multicast router ports.

To specify the static router ports, use the new command:

add igmpsnooping vlan={vlan-name|1..4094} routerport=port-list

To stop ports from being static router ports, use the new command:

delete igmpsnooping vlan={vlan-name|1..4094} routerport=port-list

To list the static router ports, use the existing command:

show igmpsnooping

and check the new “Static Router Ports” field.

6 Features in sb275a04 Software Maintenance Release Note

Version sb275a05

C613-10464-00 Rev H

Features in sb275a04

Software maintenance version sb275a04 includes all resolved issues and

enhancements in earlier 2.7.5A versions, and the resolved issues and

enhancements in the following tables.

Level 1

No level one issues

Level 2

CR Module Level Description

CR00007522

CR00012896

IP Gateway 2 The switch’s hardware IP route table occasionally did not contain the most

optimal route to a destination. This meant packets were sometimes sent

via sub-optimal routes. An additional effect was that when multiple equal-

cost routes existed a less than complete set of those routes would be

utilised.

This issue has been resolved, so that the switch forwards packets via the

best IP route(s) available.

CR00009026 IP Gateway,

OSPF

2The IP route cache (and therefore the Layer 3 IP routing table in hardware)

was sometimes refreshed unnecessarily when OSPF SPF recalculation took

place as a result of OSPF receiving a router LSA update.

This issue has been resolved.

CR00009347 GUI 2 It was not possible to use the GUI to add untagged ports to the default

VLAN.

This issue has been resolved.

CR00009826 IP Gateway 2 When a static ARP is deleted, the switch sends out an ARP request to

attempt to create a dynamic ARP for that IP address. Previously, the switch

did not process the ARP response correctly and therefore did not add the

ARP to its ARP table.

This issue has been resolved. When a static ARP is deleted, the switch

attempts to create a dynamic ARP for that IP address, and will successfully

add it to the ARP table if a device responds.

CR00010170 OSPF 2 Route maps did not filter static routes of external type 2 when

redistributing them into OSPF.

This issue has been resolved.

CR00010598 OSPF 2 When filtering OSPF routes, IP route filters did not filter out intra-area

interface routes.

This issue has been resolved.

CR00010827 OSPF 2 Previously, OSPF would advertise LSU packets to the wrong area when a

stub area was altered.

This issue has been resolved.

CR00011219 IPv4 2 When the switch received an IP packet with invalid IP option length (a

corrupted packet), a reboot might occur.

This issue has been resolved.

Software Version sb275a05 7

Version sb275a05

C613-10464-00 Rev H

CR00011585 OSPF 2 Adding the same OSPF stub or host twice caused OSPF to suspend its

operation, causing neighbour relationships to eventually fail.

This issue has been resolved.

CR00012067 OSPF 2 A summary LSA was not turned into a route if the destination and mask

fell inside one of the switch’s active ranges, unless it exactly matched the

active range’s address and mask.

This complied with RFC 1583 section 16.2. However, the recommended

behaviour has been modified in RFC 2328 section 16.2. To comply with

this, the LSA is now calculated if it falls inside one of the switch’s active

ranges.

CR00012606 STP 2 Processing of an invalid STP packet could result in an STP timeout value

being incorrectly set to 0.

This issue has been resolved, so the timeout can never be set to 0.

CR00012783 VLAN 2 When the mirror port was specified on the switch, untagged ports would

start to transmit tagged traffic.

This issue has been resolved.

CR00013178 Switch 2 In packet storm conditions, involving a high percentage of routing

protocol packets, the switch could become very low on resources, and

reboot.

This issue has been resolved.

CR00013275 Firewall 2 If a firewall policy had a list attached to it (by using the command add

firewall policy=policy-name list=list-name), destroying the policy

would cause the switch to reboot.

This issue has been resolved.

CR00013380 IP Gateway 2 In certain unusual network configurations, the switch would respond to

ICMP messages addressed to it with the wrong source IP address in the

reply.

This issue has been resolved.

CR00013598 IP Gateway 2 If the switch had multiple default routes with the same nexthop (such as

one static default route and a default route learnt by RIP) and one of those

default routes was withdrawn, then the hardware entry for the default

route would be removed. This meant that traffic destined to that route

was forwarded to the CPU, which could result in a performance

degradation.

This issue has been resolved.

CR00014044 IGMP 2 When large numbers of multicast streams were passing through the

switch and there was no multicast routing protocol running (such as PIM

or DVMRP), the CPU would experience regular periods of extended high

utilisation. This could result in lost control packets and network instability.

This issue has been resolved.

CR Module Level Description

8 Features in sb275a04 Software Maintenance Release Note

Version sb275a05

C613-10464-00 Rev H

Level 3

CR Module Level Description

CR00000133

CR00008167

Log 3 Messages in the permanent log were lost after changing the queue length

for the permanent log.

This issue has been resolved.

CR00002589

CR00011829

IPX 3 Previously, an IPX circuit sometimes incorrectly displayed its link status as

UP, when it was actually in a DOWN state.

This issue has been resolved.

CR00009817 Ping 3 The command purge ping totally did not purge all the information

about ping polling.

This issue has been resolved.

CR00010183 OSPF 3 If a route had already been learnt by OSPF, and then the inroutemap on

OSPF was configured in such a way that the properties of this route should

be altered as it is imported into the IP route table, the route would not be

altered even if the SPF calculation was repeated.

This issue has been resolved.

CR00010184 OSPF 3 If route map filtering altered the type of a AS-External route, the metric

format was not also appropriately altered.

This issue has been resolved, so that the metric format will also be altered

to be appropriate for the route type.

CR00011652 GUI 3 It was not possible to use the GUI to edit a file (through the Management

> Configuration Files > Edit page) if the filename contained a hyphen

(such as test-1.cfg). The browser returned a “page not found” error.

This issue has been resolved. You can now edit such files.

CR00012130 IP Gateway 3 The command set ip route preference=value protocol=protocol did

not correctly update the preference of all routes learned by the specified

protocol.

This issue has been resolved.

CR00012427

CR00002887

Logging 3 If a user modified the permanent log by destroying it and creating a new

one, and then saved the configuration with the command create config,

the resulting configuration file included the command destroy log

output=permanent. Therefore when the switch restarted it destroyed

the log and all entries.

This issue has been resolved. The command create config now writes the

command set log output=permanent to the configuration file instead

of the destroy and create commands.

CR00012947 Log 3 When a user entered the command show log receive=ipadd

mask=mask, the switch displayed an error message that said mask was

not a valid parameter.

This issue has been resolved. The mask parameter is now valid for this

command.

Software Version sb275a05 9

Version sb275a05

C613-10464-00 Rev H

Level 4

CR00013048 Firewall 3 When IP NAT or firewall NAT was used, the switch sometimes generated

ICMP messages that specified the wrong source IP address. This meant

that the response to traceroute could be incorrect.

This issue has been resolved.

CR00014021 Switch 3 In certain circumstances, if the switch was configured with IP filters and

STP, then some traffic would be incorrectly blocked.

This issue has been resolved.

CR Module Level Description

CR00002394 IP Gateway 4 RIP would try to send route update packets when the lower link layer was

down.

This issue has been resolved, so that RIP no longer tries to send packets

when the lower link layer is down.

CR00008006 OSPF 4 Previously, the maximum metric value for OSPF route redistribution was

16777215. This has been changed to 16777214.

CR00010399 IP Gateway 4 Previously, the ? help for some IP commands showed duplicate options.

This issue has been resolved.

CR00010540 TTY 4 Sometimes, output from the CLI ? help is long enough for the page

scrolling mechanism to take effect. This produces the prompt:

--More-- (<space> = next page, <CR> = one line, C = continuous, Q = quit)

Previously, if a user entered q in response to this prompt, the command

was lost instead of regenerated.

Also, commands terminated with the ? or Tab characters were added to

the command history with the ? or Tab character present, which is not

desirable behaviour.

These issues have been resolved.

CR00010584 OSPF 4 The “operation successful” message was not produced after the

command reset ospf spf was successfully carried out.

This issue has been resolved.

CR00011743 Core, GUI 4 The GUI sometimes displayed a value above 100% for the peak utilisation

of a port.

This issue has been resolved.

CR00012192 Core, Utility 4 If the ? is entered at the end of an incomplete command (to obtain help),

but the partially-entered command contains an error, then an error

message is displayed.

Previously, the incomplete command was not then re-presented to the

user for editing.

This issue has been resolved, so that the incomplete command is now

presented to the user again after the error message.

10 Features in sb275a04 Software Maintenance Release Note

Version sb275a05

C613-10464-00 Rev H

CR00012774 IP Gateway,

TCP

4In an unusual network configuration where the IP subnet on one interface

was a subset of that on another interface, it was possible for the results

of a trace route to show erroneous information.

This issue has been resolved. A search for an interface using an address

within the interface's subnet now finds the most specific match for the

address.

CR00012946 Log 4 When a user entered the command show log receive=ipadd,

information about all IP addresses was displayed unless the user also

entered the mask parameter.

This issue has been resolved. Specifying an IP address without a mask now

limits the display to information about that IP address.

CR00013332 Core 4 When insufficient arguments were entered in the command set

interface, an error message was not produced.

This issue has been resolved, so that an error message is now correctly

output.

CR00013334 TCP 4 The delete tcp command did not output a success message after

successfully completing.

The enable tcp debug command produced messages with the wrong

module ID.

These issues have been resolved.

CR00013336 Core, NVS, TCP,

TTY

4If parameters were incorrectly entered twice in some set or show

commands, the resulting error message was corrupted and included

meaningless characters.

This issue has been resolved.

CR00013442 Switch 4 When the user attempted to enable CPU Tx health checking on an

instance in the SwitchBlade controller (by using the command enable

switch healthcheck=cputx), the switch correctly rejected this command.

However, the output of the show config dynamic or create config

commands included this rejected command.

This issue has been resolved.

CR Module Level Description

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