Allied Telesis AT-8550 - Manual (Page 19)

AT-9108, AT-8518, AT-8525, and AT-8550 User’s Guide
1-5
Memory Requirements
Your Gigabit switch must have 32MB of DRAM in order to support
the features in switch software version 4.0 and above. This is not an
issue for the AT-8525 and the AT-8550 models, and all currently
shipping switches contain 32MB. Earlier models of the switches
shipped with 16MB, and must be upgraded to support the switch
software version 4.0 and above.
To determine the memory size in your switch, use the following
command:
show memory
For switches running software version 4.0, the switch indicates the
total DRAM size in megabytes as part of the output. For switches
running previous softwware releases, you must calculate the
memory by taking the sum of the bytes listed under
current
free and adding to it the bytes listed under current alloc . If
the sum is greater than 16,000,000, there is no need to upgrade the
memory on the switch. If this is not the case, please contact your
supplier.