Install Guide

Ring ID: the range is from 1 to 255.
Troubleshooting FRRP
To troubleshoot FRRP, use the following information.
Configuration Checks
● Each Control Ring must use a unique VLAN ID.
● Only two interfaces on a switch can be Members of the same control VLAN.
● There can be only one Master node for any FRRP group.
● You can configure FRRP on Layer 2 interfaces only.
● Spanning Tree (if you enable it globally) must be disabled on both Primary and Secondary interfaces when you enable FRRP.
○ When the interface ceases to be a part of any FRRP process, if you enable Spanning Tree globally, also enable it explicitly
for the interface.
● The maximum number of rings allowed on a chassis is 255.
Sample Configuration and Topology
The following example shows a basic FRRP topology.
Example of R1 MASTER
Example of R2 TRANSIT
Example of R3 TRANSIT
FRRP Support on VLT
Using FRRP rings, you can inter-connect VLT domains across data centers.
These FRRP rings make use of Layer2 VLANs that spawn across Data Centers and provide resiliency by detecting node or link
level failures.
You can configure a simple FRRP ring that connects a VLT device in one data center to a VLT devices in two or more Data
Centers.
NOTE:
This configuration connects VLT devices across Data Centers using FRRP; however, the VLTi may or may not
participate as a ring interface of any FRRP ring.
Following figure shows a simple FRRP ring inter-connecting VLT device:
Figure 40. FRRP Ring Connecting VLT Devices
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Force10 Resilient Ring Protocol (FRRP)