Patch Release Note
Patch SB251-08
For SwitchBlade 4000 Series Switches and
AT-9800 Series Switches
Introduction
This patch release note lists the issues addressed and enhancements made in
patch SB251-08 for Software Release 2.5.1 on existing models of SwitchBlade
4000 Series Switches and AT-9800 Series Switches. Patch file details are listed in
Tabl e 1 .
Table 1: Patch file details for Patch SB251-08.
Base Software Release File sb-251.rez
Patch Release Date 14-May-2003
Compressed Patch File Name sb251-08.paz
Compressed Patch File Size 86524 bytes
This release note should be read in conjunction with the following documents:
■ SwitchBlade Documentation Set for Software Release 2.5.1 (Document
Number C613-03057-00 Rev A).
■ AT9800 Series Switches Documentation Set for Software Release 2.5.1
(Document Number C613-03056-00 Rev A)
■ Release Note for Software Release 2.5.1 for SwitchBlade 4000 Switches and
AT-9800 Series Switches (Document Number C613-10354-00 Rev D)
available on the Documentation and Tools CD-ROM packaged with your
switch, or from www.alliedtelesyn.co.nz/documentation/documentation.html
WARNING: Using a patch 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.
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Simply connecting the world
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. For details
on level numbers, please contact your authorised distributor or reseller.
Features in SB251-08
Patch SB251-08 includes all issues resolved and enhancements released in
previous patches for Software Release 2.5.1, and the following enhancements:
PCR: 03251 Module: SWI Level: 2
A fatal error occurred when the ADD SWITCH TRUNK command specified
an invalid port. This issue has been resolved.
PCR: 03414 Module: SWI Level: 2
A fatal error occurred when removing a line card from a SwitchBlade if STP
was enabled. This issue has been resolved.
PCR: 03466 Module: SWI Level: 2
System performance was low when adding large numbers of entries to
CAM. This issue has been resolved. CAM is now initialised to allow better
performance, especially for the addition of ARP and IP entries.
PCR: 03470 Module: SWI Level: 2
The DELETE SWITCH TRUNK PORT command could cause an unrelated
port to stop forwarding packets, or learn new MAC addresses. This issue
has been resolved so that unrelated ports are not affected by the trunk group
port deletion.
PCR: 03509 Module: SWI Level: 2
All IP routes were being added to all switch instances. This caused issues on
SwitchBlade line cards that did not have enough CAM to store the routes,
and the line card did not always need every route. IP routes are now only
added:
• to a switch instance if the route was learned on that instance
• if the route is for an interface
• if the route was added statically, or
• if the switch instance has a CAM which is the same size or larger than
the CAM of the switch instance that the route was learned on.
PCR: 03518 Module: SWI Level: 3
An issue exists where the CAM entry 0 in the VLAN Tag table is either not
updated or is being overwritten with invalid data. This PCR adds
debugging to trace the fault.
Patch SB251-08 for Software Release 2.5.1
C613-10361-00 REV H
Patch SB251-08 For SwitchBlade 4000 Series Switches and AT-9800 Series Switches 3
Features in SB251-07
Patch file details are listed in Table 2:
Table 2: Patch file details for Patch SB251-07.
Base Software Release File
Patch Release Date
Compressed Patch File Name
Compressed Patch File Size
sb-251.rez
22-Apr-2003
sb251-07.paz
86524 bytes
Patch SB251-07 includes all issues resolved and enhancements released in
previous patches for Software Release 2.5.1, and the following enhancements:
PCR: 03399 Module: STP, SWI Level: 1
With this enhancement:
• STP and Port Trunking now work together correctly.
• BDPU Forwarding is implemented. The BPDU Forwarding feature
configures the switch to forward all received STP BPDUs. Under
normal circumstances, the switch will not forward any received STP
BPDUs, even if STP is enabled.
This implementation is for standard STP, it does not guarantee that RSTP
and port trunking will work correctly together in all situations.
STP does not update the pathcost for trunked ports, which means that a
trunk group has the same pathcost as a single port. This may cause STP
Blocking where it is not expected. To overcome this, the user should
explicitly set the pathcost for the trunk group ports to be less than the
default value for a single port.
STP reconfigures if the Master port in a trunk group goes link down. If the
Master port in a trunk group goes link down, and a Non-Master port is still
link-up, then STP will go through the Listening>Learning>Forwarding
reconfiguration on the new Master port. This means that there will be a
switching outage on the trunk group whilst the new Master port transitions
to the Forwarding state.
Command handler changes:
• The PO RT p ar ameter of the CRE ATE SWITCH TR UNK PORT and A DD
SWITCH TRUNK PORT commands must specify ports that have
identical STP port configurations.
• The ENABLE STP and ENABLE STP PORT commands cannot be used
to enable STP operation on a port that has been disabled from STP
operation because of Port Trunking. Only the Master port in a trunk
group actively participates in the STP algorithm. Non-Master ports in
the trunk group are in the STP Disabled State.
• The output for the SHOW STP PORT command has been modifed so
that Non-Master Ports in a trunk group do not take part in the STP
algorithm.
• The output for the SHOW STP PORT command has been modified so
that it displays whether a user has set the PATHCOST value, or if it was
auto-configured.
Patch SB251-08 for Software Release 2.5.1
C613-10361-00 REV H
4 Patch Release Note
• The PORT parameter of the SET STP PORT command specifies either all
the ports in a trunk group, or none of the ports in a trunk group.
• The STPFORWARD parameter has been added to the ENABLE
SWITCH and DISABLE SWITCH commands. If STPFORWARD is
enabled, and there is no enabled STP instance, then the switch will
forward all received BPDUs. If STPFORWARD is enabled, and an STP
instance is enabled, then STPFORWARD will be disabled by default and
a message will be generated.
• The SHOW SWITCH command now shows the status of the BPDU
Forwarding feature.
PCR: 03401 Module: SWI
An enhancement has been made to the Test module to optimise the
reception of the loopbacked packets that are used to confirm operation of
the switch ports.
Features in SB251-06
Patch file details are listed in Table 3.
Table 3: Patch file details for Patch SB251-06.
Base Software Release File
Patch Release Date
Compressed Patch File Name
Compressed Patch File Size
sb-251.rez
10-Apr-2003
sb251-07.paz
79684 bytes
Patch SB251-06 includes all issues resolved and enhancements released in
previous patches for Software Release 2.5.1, and the following enhancements:
PCR: 03340 Module: SWI, SYSR Level: 1
After a power cycle, or a reboot command, the SwitchBlade would
occasionally repeatedly restart if it had two active controller cards. Also, the
Slave controller card would sometimes not take over if the Master controller
card failed.
Features in SB251-05
Patch file details are listed in Table 4.
Table 4: Patch file details for Patch SB251-05.
Base Software Release File
Patch Release Date
Compressed Patch File Name
Compressed Patch File Size
sb-251.rez
31-Mar-2003
sb251-05.paz
71096 bytes
Patch SB251-08 for Software Release 2.5.1
C613-10361-00 REV H
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