AT-S63 Version 4.1.0 Patch 2 Software Release Notes
PN 613-001278 Rev A 4 Allied Telesis, Inc.
IGMP Snooping Querier: This feature allows the switches to function as proxy multicast
routers by generating IGMPv1 and v2 queries.
RSTP BDPU Guard: This feature disables RSTP edge ports if they receive BPDU packets.
RSTP Loop Guard: This feature prevents RSTP from creating loops in network topologies
when there is an interruption in the reception of BPDUs on RSTP ports.
Link Flap Protection: This feature protects switch operations and network topologies by
disabling ports that are unable to maintain reliable connections to network devices.
Static Port Trunks and LACP Trunks: The total number of static port trunks and LACP trunks
supported on stand-alone switches and AT-9400Ts Stacks has been increased to 32 trunks
from six trunks.
Upgrading Stand-alone AT-9400 Switches
You can upgrade a stand-alone switch from a local management session with either XMODEM
or TFTP, or from a remote Telnet, SSH, or web browser session with TFTP. For instructions,
refer to the AT-S63 documentation set.
After you have upgraded the management software on a stand-alone switch, you need to check
its stack ID number. Starting in Version 4.0.0 stand-alone switches that have a static ID number
use the stack configuration file instead of the stand-alone configuration file as their active
configuration file. In previous versions, the stack configuration file was used only when a switch
detected that it was a master switch or a backup master switch of a stack. The purpose of this
change is to make it possible for a master switch and a backup master switch to maintain their
stack configuration settings if the switches revert to stand-alone units should a stack encounter a
problem.
When a stand-alone switch that has a static ID number is upgraded to Version 4.0.0 or 4.1.0, it
uses the stack configuration file instead of the stand-alone file after it resets. This may give the
impression that it has lost all of its configuration settings. To remedy this, you must change the
stack ID number assignment from static to automatic. Stand-alone switches that have an
automatic stack ID assignment always use the stand-alone configuration file.
To check the switch’s stack ID number:
1. Log on the switch as the manager.
2. Enter the following command to display the switch’s current stack ID number:
show stack
Here is an example of the information:
3. If the Stack Mode parameter is AUTO, you are finished updating the stand-alone switch.
However, if it is set to STATIC, you need to change the Stack Mode to automatic with this
command:
set stack moduleid=
n
newmoduleid=auto
The variable n is the current value of the Stack ID parameter in the display. For example, if
the current value of the parameter is 1, the command would be:
set stack moduleid=1 newmoduleid=auto
Local MAC Addr :00:30:84:00:00:03
Standalone Mode ID :1
Stack Mode :AUTO
Stack ID :1
Stack Priority :16
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