Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 856

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. Using PE Console Commands To debug an error condition in a PE stack, you can connect a console to the console port on the master unit and enter PE console commands. Contact Dell Networking support for assistance. The supported PE console commands are described in the C9000 Series Command-Line Reference Guide. Splitting a Daisy-Chained PE Stack If you split a PE stack in a daisy-chain topology into two sub-stacks and each sub-stack has a PE uplink to the controlling bridge, the C9010 detects the stack split and generates an alarm. System administrator intervention is required to diagnose and correct the split condition; for example, check cable connections or reboot stack units to reactivate each PE stack. Port Extender (PE) Stacking 856