344 | Force10 Resilient Ring Protocol (FRRP)w w w . d e l l . c o m | s u p p o r t . d e l l . c o m In the example shown in Figure 16-2, FRRP 101 is a ring with its own Control VLAN, and FRRP 202 hasits own Control VLAN running on another ring. A Member VLAN that spans both rings is added as aMember VLAN to both FRRP groups. Switch R3 has two instances of FRRP running on it: one for eachring. The example topology that follows shows R3 assuming the role of a Transit node for both FRRP 101and FRRP 202.Figure 16-2. Example of Multiple Rings Connected by Single SwitchImportant FRRP PointsFRRP provides a convergence time that can generally range between 150ms and 1500ms for Layer 2networks. The master node originates a high-speed frame that circulates around the ring. This frame,appropriately, sets up or breaks down the ring.• Ring Status Check Frames are transmitted by the Master Node at specified intervalsPrimaryForwardingPrimaryForwardingSecondaryForwardingPrimaryForwardingSecondaryBlockingSecondaryForwardingTRANSITR2TRANSITR3FRRP 101MASTERR1TRANSITR3PrimaryForwardingPrimaryForwardingPrimaryForwardingPrimaryForwardingPrimaryForwardingSecondaryForwardingSecondaryForwardingSecondaryForwardingSecondaryForwardingSecondaryBlockingFRRP 202MASTERR5Ring 202DirectionTRANSITR4TRANSITR6TRANSITR7Ring 101Direction
