Installation Guide

When the Stacking Port Selection Control option is enabled in a switch's configuration, you can choose
between native and alternate stacking ports. The default selection is the native stacking ports.
• To select between the native and alternate stacking ports, use the following command for each
switch in the stack:
configure stacking-support stack-port [stack-ports | all] selection
[native { | V160 |V320 | V400} | alternate]
Note
Not all options are available for all switches. Refer to Stacking Considerations for Each
Switch Model on page 255 for details.
• To display the stacking and stacking-support configuration, use the following commands:
show stacking-support
show stacking stack-ports
show stacking {node-address node_address | slot slot_number} detail
• To unconfigure the stacking-support feature, use the following command:
unconfigure stacking-support
Note
Commands that contain the stacking-support keyword apply to the local switch only.
This means that each switch that will use alternate stacking ports must be configured
separately. When the stack is fully active, you can use the telnet slot slot-number
command to log in to another node over the stack to unconfigure SummitStack-V on that
node only. There is no way to intentionally or accidentally unconfigure the stacking-
support options on all nodes in a stack.
• When the stacking-support feature has been configured as required on all nodes in a stack, reboot
each node.
• Run the show stacking stack-ports command to verify that the stack has been properly
connected.
Combining Switches from Dierent Series
ExtremeSwitching switches can be stacked in the combinations listed in Table 146 on page 277. For
each combination, one or more of the following stacking methods are displayed:
40G
40G mode (X460-G2 switches with VIM)
SS
SummitStack
V
SummitStack-V
V80
SummitStack-V80
V84
Combining Switches from
Dierent Series Building Stacks
276 Summit Family Hardware Installation Guide