Dell S5000 FTOS 9.0(1.3) Configuration Guide for the Switch - Page 378

www.dell.com | support.dell.com Member VLAN Spanning Two Rings Connected by One Switch A Member VLAN can span two rings interconnected by a common switch, in a figure-eight style topology. A switch can act as a Master node for one FRRP Group and a Transit for another FRRP group, or it can be a Transit node for both rings. In the example shown below, FRRP 101 is a ring with its own Control VLAN, and FRRP 202 has its own Control VLAN running on another ring. A Member VLAN that spans both rings is added as a Member VLAN to both FRRP groups. Switch R3 has two instances of FRRP running on it: one for each ring. The example topology that follows shows R3 assuming the role of a Transit node for both FRRP 101 and FRRP 202. Figure 17-2. Example of Multiple Rings Connected by Single Switch FRRP 101 MASTER R1 Primary Forwarding Secondary Blocking Ring 101 Direction TRANSIT R7 Primary Forwarding Primary Forwarding TRANSIT R3 TRANSIT R3 Secondary Forwarding Secondary Forwarding Primary Forwarding Primary Forwarding TRANSIT R2 Secondary Forwarding Secondary Forwarding Secondary Forwarding TRANSIT R4 Primary Forwarding TRANSIT R6 Secondary Forwarding Primary Forwarding Ring 202 Direction Primary Forwarding FRRP 202 Secondary Blocking MASTER R5 378 | Force10 Resilient Ring Protocol (FRRP)