Users Guide

• Display the type of stack topology (ring or daisy chain) and the stack-port connections on peer stack-
units in the ring. The interface and connection values are in the format pe-id/stack-port. Enter
the PE ID of the master unit.
show pe pe-id system stack-ports topology
Dell#show pe 255 system stack-ports topology
Topology: Ring
Interface Connection
---------------------
1/1 3/1
1/2 2/1
2/1 1/2
2/2 3/2
3/1 1/1
3/2 2/2
Locating the Port Extender
• Use the location-led command to locate a PE by toggling its LED off and on.
EXEC Privilege mode
location-led pe pe-id stack-unit unit-number
The following example turns on the green blinking light on the main PSU LED on port extender 0
stack unit 5.
Dell#location-led pe 0 stack-unit 5 on
The following example disables the location-led feature on the PE stack-unit 5
Dell#location-led pe 0 stack-unit 5 off
Troubleshooting a PE Stack
To troubleshoot the operation of a PE stack, use the following tasks.
Diagnosing an Error Condition
For debugging purposes, you can prevent the stack master from rebooting after a failover to allow you to
gather information on stack operation.
CONFIGURATION mode
redundancy disable-auto-reboot pe pe-id stack-unit unit-number
• pe-id — port-extender identifier of the master unit. The range is 0 through 255.
Dell(conf)# redundancy disable-auto-reboot pe 2 stack-unit unit-number
NOTE: The redundancy disable-auto-reboot pe command does not affect a forced failover,
manual reset, or a stack-link disconnect.
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Port Extender (PE) Stacking