
AT-S63 Version 4.1.0 Patch 2 Software Release Notes
PN 613-001278 Rev A 6 Allied Telesis, Inc.
For instructions on how to download the new software using TFTP, refer to the AT-S63
documentation set.
8. After upgrading the management software on the switch, end the management session and
power off the switch.
9. Repeat steps 6, 7, and 8 on each switch in the stack.
10. After upgrading all the stack units, reconnect the stacking cables to the AT-StackXG
Modules.
11. Power on the switches. The switches can be powered on in any order.
Note:
All the switches in a stack must use the same version of the AT-S63 Management Software.
Otherwise, the stack may not successfully form and/or experience performance problems.
AT-9424T Switch
AT-9424T Switches shipped after March 2009 and with “04221” in their serial numbers must use
Version 4.0.0 or later of the AT-S63 Management Software. Downloading earlier versions of the
management software onto these switches causes them to fail during bootup.
Stacking Tips
Stack Size
The maximum number of switches in a stack varies according to the switch model. A stack
can have up to eight units of AT-9424Ts Switches, AT-9424Ts/XP Switches or a combination
of both.
Stacks can also have the AT-9448Ts/XP Switch, but Allied Telesis does not recommend
using this model as a master switch. Consequently, a stack with one or more of these
switches should have an AT-9424Ts or AT-9424Ts/XP Switch acting as the master switch.
For stacks of more than three switches, both the master switch and the backup switch should
be 24-port switches. A stack should not have more than four AT-9448Ts/XP Switches and
should not exceed a total of eight units, as shown in this table.
Adding switches to a stack. To add a switch to an existing stack, follow this procedure. (The
references are to Chapter 3, “Preparing the Switches of a Stack,” in the AT-9400 Stack
Installation Guide.)
Number of 24-Port AT-9424Ts and AT-9424Ts/XP Switches
Number of
48-Port
AT-9448Ts/XP
Switches
012345678
0
1
2
3
4
Serial Number - x04221xxxxxxxxxx
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