Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 332

www.dell.com | support.dell.com Figure 18-2. 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 Important FRRP Points FRRP provides a convergence time that can generally range between 150ms and 1500ms. The Master node originates a high-speed frame that circulates around the ring. This frame, appropriately, sets up or breaks down the ring. • A single FRRP flap will occur wen a line card is reset or a stack unit fails over to the standby. • Ring Status Check Frames are transmitted by the Master Node at specified intervals. • Multiple physical rings can be run on the same switch. • One Master node is supported per ring. All other nodes are Transit nodes. • Each node has 2 member interfaces: Primary and Secondary. • There is no limit to the number of nodes on a ring. 332 | Force10 Resilient Ring Protocol