Allied Telesis AT-8900 User Manual
Software Maintenance Release Note
Version 89273-02
for AT-8900 and AT-9900 series switches
Introduction
This release note lists the issues addressed and enhancements made in version
89273-02 for Software Release 2.7.3 on existing models of AT-8900 and AT-9900
series switches. File details are listed in Table 1.
Table 1: File details for version 89273-02.
Base Software Release File
Release Date
Compressed File Name
Compressed File Size
This release note should be read in conjunction with the following documents:
■ Release Note: Software Release 2.7.3 for AT-9900, AT-8900, SwitchBlade,
AT-9800, AT-8800, Rapier, Rapier i, AT-8700XL, and AT-8600 Series
Switches and AR400 and AR700 Series Routers (Document Number C61310431-00 REV A) available from www.alliedtelesyn.com
■ AT-8900 series switch Documentation Set for Software Release 2.6.2
available on the Documentation and Tools CD-ROM packaged with your
switch, or from www.alliedtelesyn.co.nz/documentation/documentation.html
■ AT-9900 series switch Documentation Set for Software Release 2.6.6
available on the Documentation and Tools CD-ROM packaged with your
switch, or from www.alliedtelesyn.com
WARNING: Using a maintenance release for a different model or software
release 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 Telesyn International. While
every effort has been made to ensure that the information contained within this
document and the features and changes described are accurate, Allied Telesyn
International can not accept any type of liability for errors in, or omissions
arising from the use of this information.
89-273.rez
29 April 2005
89273-02.rez
4263880 bytes
.
.
2 Patch Release Note
Some of the issues addressed in this Release Note include a level number. This
number reflects the importance of the issue that has been resolved. The levels
are:
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.
Enabling and installing this Release
To use this maintenance release you must have a base release license for
Software Release 2.7.3. Contact your distributor or reseller for more
information.
To enable this release and install it as the preferred release, use the commands:
enable rel=89273-02.rez num=2.7.3
set install=pref rel=89273-02.rez
Features in 89273-02
Patch 89273-02 includes the following enhancements and resolved issues:
Level 1
CR00005227 Module: SWI, RSTP, SWMX,
SWCX, SW56
A heavy processor load could lead to queuing RSTP BPDUs, which in turn
could lead to even more processor load, resulting in more queued BPDUs.
This issue has been resolved by improving the efficiency in the interaction
between RSTP TCN BPDUs and the hardware tables.
This issue has been resolved. (PCR number: 40672)
CR00006609 Module: LB Level: 1
Level: 1
When failover occurred between a redundant pair of Load Balancing
devices, host ARP caches were not updated with the new Master's MAC
address, thus causing the hosts to lose connectivity until their ARP caches
timed out the stale entry. This issue has been resolved. (No PCR number.)
CR00007034 Module: Firewall Level: 1
A reboot could occur while ageing out Firewall sessions when the device
was under heavy load and had many active Firewall sessions.
This issue has been resolved. (No PCR number.)
Software Maintenance Release note for Software Release 2.7.3
C613-10443-00 REV A
Version 89273-02 for AT-8900 and AT-9900 series switches 3
CR00007695 Module: PPP Level: 1
When either the Firewall was enabled or multiple L2TP tunnels were
configured, and a default route existed over an L2TP tunnel, it was possible
for an infinite internal packet loop to be created when a packet was sent
over the L2TP tunnel after the underlying interface route to the remote IP
had gone down. This caused a reboot to occur.
This issue has been resolved. (No PCR number.)
Level 2
CR00002290 Module: STP, SWI Level: 2
Previously, the forwarding database was flushed instead of being aged out
when an STP topology change notification was received.
This issue has been resolved. (PCR number: 40185)
CR00002662 Module: STP Level: 2
Previously, when a port or ports was moved from one VLAN to another, the
switch would reset both STP/RSTP instances that control the VLANs. This
behaviour is now changed to only reset the STP process on the STP instance
that the port(s) is joining. The switch will now also retain the port(s) edgeport setting during the moving process.
This issue has been resolved.
CR00004964 Module: CORE, PSS, QOS, SWI
Level: 2
SWMX,
A switch, lock-up could occur after enabling the use of QoS Counters via the
command SET SWITCH ENHANCEDMODE=QOSCOUNTERS.
This issue has been resolved.
CR00005983 Module: IPNAT Level: 2
When IP NAT was configured, a restart could occur if a TCP RST packet was
received with flags in addition to ACK.
This issue has been resolved.( PCR number: 40728)
CR00006521 Module: IPv6 Level: 2
The "SET IPV6 MLD ?" command was not displaying the correct parameters
on the command-line.
This issue has been resolved.
CR00006554 Module: PPP Level: 2
PPP TCP mss clamping was always fixing the mss to 1372. This issue is now
fixed, so that if the MTU or MRU is less than 1472, then mss clamping
clamps the mss to the correct size.
This issue has been resolved.
CR00006769 Module: PPP Level: 2
PPPoE has been modified so that a single host can be attached to multiple
access concentrators without a conflict of session ID's.
Software Maintenance Release note for Software Release 2.7.3
C613-10443-00 REV A
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