Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 696

homing setup. The following figure shows PE dual homing, where the C1048P port extenders are dual-homed to a pair of C9010 switches. Figure 105. Dual Homing - Sample Topology 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 Extender. 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 Standalone System. Port Extenders (PEs) 696