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In the preceding illustration, Port Extender PE 1 is connected to System A and Port Extender PE 2 is
connected to System B. PE 3 is connected to both A and B. When the systems A and B are connected to each
other and made as VLT peers, you can configure PE 1, PE 2, and PE 3 from either of the systems.
System A is the primary controlling bridge and System B is the secondary. When the primary system goes
down, the secondary system acts as primary and controls the PEs. The common PE configurations are
synchronized between the systems when configured using the Configuration Terminal Batch mode.
Configuration Terminal Batch Mode
The C9010 platform with Dell Networking OS 9.10(0.0) supports the Configuration Terminal Batch mode. You
should perform the common PE configurations using this mode.
To enter Configuration Terminal Batch mode:
1
Verify that you are logged in to EXEC Privilege mode.
2
Enter the configure terminal batch command. The prompt changes to include (conf-b).
You can return to EXEC mode by using the exit command.
Setting up Dual Homing
You can setup dual homing when:
1
There are two systems (CBs) and both have PEs connected to them. You can physically connect the CBs
and then configure them as VLT peers to convert the system into dual homing setup. Refer to
Systems with Port
2
There is a CB connected to PE and a standalone CB. You can physically connect the CBs and then
configure them as VLT peers. Then physically connect the uplink ports of the PE to each of the VLT
peers. The system starts functioning as a dual homing setup. Refer to
Extender.
Standalone
System.
Port Extenders (PEs)
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Troubleshooting
