System information

Stacking PowerConnect 10G Switches: M8024-k, 8024, 8024F
12
1 0/20 Ethernet Ethernet Link Down 10
1 1/1 Ethernet Ethernet Not Created Unknown
1 1/2 Ethernet Ethernet Not Created Unknown
1 1/3 Ethernet Ethernet Not Created Unknown
1 1/4 Ethernet Ethernet Not Created Unknown
This command provides four pieces of information used for stacking. It shows the Unit number for the
switch which is used in the stacking commands in the examples below. It shows all Interfaces of the
switch that may be used for stacking. It shows the Configured Stack Mode and the Running Stack Mode
are currently both Ethernet. And since this is an M8024-k model, it shows eight interfaces, four built-in
SFP+ ports plus four additional ports set aside (Not Created) for the optional 4-port SFP+ expansion
module (see Figure 4). Perform the following commands:
console#config
console(config)#stack
console(config-stack)#stack-port tengigabitethernet 1/0/17 stack
console(config-stack)#stack-port tengigabitethernet 1/0/18 stack
console(config-stack)#do show switch stack-ports
Configured Running
Stack Stack Link Link
Unit Interface Mode Mode Status Speed (Gb/s)
---- ---------------- ---------- ---------- ------------ ------------
1 0/17 Stack Ethernet Link Down 10
1 0/18 Stack Ethernet Link Down 10
1 0/19 Ethernet Ethernet Link Down 10
1 0/20 Ethernet Ethernet Link Down 10
1 1/1 Ethernet Ethernet Not Created Unknown
1 1/2 Ethernet Ethernet Not Created Unknown
1 1/3 Ethernet Ethernet Not Created Unknown
1 1/4 Ethernet Ethernet Not Created Unknown
The Configured Stack Mode for interfaces 17 and 18 are now Stack, but the Running Stack Mode is still
Ethernet. The Running Mode will change to Stack upon reloading the switch, which is done in a later
step.
In order for any new member unit to work properly within a stack, it needs to have the same firmware
as the Master. A manual update of the firmware can be performed on the new member to synchronize
the firmware prior to cabling it into the stack. Or, a second way to accomplish this is to configure the
Master switch to use the boot auto-copy-sw command, which automatically upgrades firmware on new
members as they are added to the stack. In the event the new stack member unit being added has a
newer firmware version, a downgrade may also be allowed. To prevent the downgrade of the new
stack member unit’s firmware, the Master needs to be configured with the following command: no boot
auto-copy-sw allow-downgrade. This will allow all new member units to synchronize with the Master
only if the firmware revision of the new members is older than that of the Master. Use the following
commands on the Master only to set this feature and display the settings. Only the Master unit is
required to have these settings in order for these features to work.