Allied Telesis AT-S63 - Manual (Page 43)

AT-S63 Stack Command Line Interface User’s Guide
Section I: Basic Operations 43
Upgrading the AT-S63 Management Software
The AT-9400 Switch must have Version 3.0.0 of the AT-S63 Management
Software to be a member of a stack.
To update the management software on an existing stack for versions
after Version 3.0.0, you must disconnect the stacking cables and update
the switches individually, either locally through the Terminal Port on the
units or over the network using a TFTP server. You can reconnect the
stacking cables after the management software on all of the switches is
updated.
Note
The switches of a stack must use the same version of the
management software.
SNMP
A stack cannot be managed using SNMP and does not send SNMP traps.