Administrator Guide

Removing a Unit from a PE Stack
In a PE stack, the parent C9010 synchronizes the software configuration on all stack units. A stack member that is disconnected
from the stack maintains this configuration.
To remove a stack member from the stack, disconnect the stacking cables from the unit. You may disconnect the cable at any
time, whether the unit is powered or unpowered, online or offline.
The following example shows the status of stack-unit 1 before it is removed from the PE stack.
Dell#show pe 0 system brief
Stack MAC : 00:01:e8:8a:df:e6
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
-----------------------------------------------------------
0 Management online C1048P C1048P 1-0(0-4149) 52
1 Member online C1048P C1048P 1-0(0-4149) 52
2 Member not present
3 Standby online C1048P C1048P 1-0(0-4149) 52
4 Member not present
5 Member not present
6 Member not present
7 Member not present
The following example displays the status of stack-unit 1 after it is removed from the PE stack.
Dell#show pe 0system brief
Stack MAC : 00:01:e8:8a:df:e6
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
-------------------------------------------------------
0 Management online C1048P C1048P 1-0(0-4149) 52
1 Member not present
2 Member not present
3 Standby online C1048P C1048P 1-0(0-4149) 52
4 Member not present
5 Member not present
6 Member not present
7 Member not present
Verifying a PE Stack Master and Standby
The Status LED on the front panel of a PE stack unit identifies the unit’s role in the stack.
● Off indicates that the unit is a stack member.
● Off also indicates that the unit is stack standby.
● Solid green indicates that the unit is the stack master (management unit).
Displaying PE Stack Information
To display information about a PE stack configuration, enter the following show commands in EXEC Privilege mode.
● Display information about PE stack units connected to the C9010, including the discovery status.
show pe
Dell# show pe
Maximum number of PE Units allowed: 80
Current number of PE units in the system: 8 (Online: 8 Offline: 0)
Current number of PEs in the system: 1 (Online: 1 Offline: 0)
Current number of PEX ports in the system: 384 (Maximum: 4000)
Codes: A - Active, I - Inactive
Port Extender (PE) Stacking
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