13.5.2 Multi-stage configuration of GSRP study

GSRP permits multi-stage configuration of multiple GSRP groups on the same Layer 2 network, which assures redundancy on a large-scale network. When you allocate GSRP groups in a multi-stage configuration, configure a GSRP-managed VLAN for each GSRP group to limit the range for sending GSRP control frames. The following figure provides an overview of the multi-stage configuration of GSRP groups.

Figure 13-12: Multi-stage configuration of GSRP group

In this figure, Switches A and B make up GSRP group 1, and Switches C and D make up GSRP group 2. Each GSRP group operates independently. If the master and the backup are switched in a GSRP group, the other GSRP group is not affected. Configure a GSRP-managed VLAN to include neighboring switches with the GSRP switches at the core.