BigIron RX Series Configuration Guide 41153-1001810-01Chapter15Virtual Switch Redundancy Protocol (VSRP)In this chapter• Overview of Virtual Switch Redundancy Protocol (VSRP) . . . . . . . . . . . . . . 411• Configuring basic VSRP parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418• Enabling Layer 3 VSRP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419• Configuring optional VSRP parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419• Clearing VSRP information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427• VSRP and MRP signaling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427• Displaying VSRP information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429Overview of Virtual Switch Redundancy Protocol (VSRP)VSRP is a Brocade proprietary protocol that provides redundancy and sub-second failover in Layer2 and Layer 3 mesh topologies. Based on the Brocade’s proprietary Virtual Router RedundancyProtocol Extended (VRRPE), VSRP provides one or more backups for the device. If the active devicebecomes unavailable, one of the backups takes over as the active device and continues forwardingtraffic for the network.Layer 2 and Layer 3 share the same VSRP configuration information.