Figure 40. Multiple Rings Connected by a Single Switch Example
Important FRRP Points
FRRP provides a convergence time that can generally range between 150ms and 1500ms for Layer 2
networks.
The Master node originates a high-speed frame that circulates around the ring. This frame, appropriately,
sets up or breaks down the ring.
• The Master node transmits ring status check frames at specified intervals.
• You can run multiple physical rings on the same switch.
• One Master node per ring — all other nodes are Transit.
• Each node has two member interfaces — primary and secondary.
• There is no limit to the number of nodes on a ring.
• Master node ring port states — blocking, pre-forwarding, forwarding, and disabled.
Force10 Resilient Ring Protocol (FRRP) 373