Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

VSRP 4In this example, VRID 5 is in the initialization state, with a priority of 150. Because the currentmaster’s priority is lower than 150, VRID 5 changes from backup to master.In the following section of output, the new master receives a Hello message with a higher priority(200) and reverts to backup. In the output, several VSRP PDUs are received, but none with apriority higher than 200, so the new master remains the master.VSRP PDU received - vlan 5 - port 1/6ver:2 type:1 vrid:5 pri:200 #ip:0 aut:0adv:1 dea:3 hld:3 ttl:2 scl:10 chksum:0x11ecApr 26 16:09:13event:==========info - vsrp_set_backup() - instance 5 set to backup stateVSRP PDU received - vlan 5 - port 1/6ver:2 type:3 vrid:5 pri:200 #ip:0 aut:0adv:1 dea:3 hld:3 ttl:2 scl:10 chksum:0x0fecApr 2616:09:14======================================VSRP debug commandsThis section describes how to use debug commands to monitor VSRP environments.debug vsrpSyntax: [no] debug vsrp [all | aware | error | events | packets | show | state | verbose | vlan]• all - Displays information about all VSRP events.• aware - Displays information about VSRP aware.• error - Displays VSRP errors.• events - Displays VSRP events.• packets - Displays information about VSRP packets.• show - Displays VSRP debug parameters.• state - Displays VSRP state changes.• verbose - Displays VSRP information in verbose mode.• vlan - Displays VSRP debug information for a specific VLAN.This command generates information about VSRP activity. All VSRP routers go to the backup statewhen they are first reloaded. Command output is similar to the following, where router 1 goes tothe master-confirm and master states. For Layer 3 VSRP, the master sends out the gratuitous ARPfor the virtual router IP address, and then sends out the Hello packet as Layer 2 VSRP.Brocade# debug vsrp allVSRP debugging is setup for all attributesBrocade# debug vsrpVSRP: debugging is onMay 17 11:06:18 VSRP: VLAN VLAN: 100, VRID 1, State BACKUPMay 17 11:06:25 VSRP: Packet received on port 1/6, vlan VLAN: 100ver:2 type:1 vrid:1 pri:111 #1p:1 aut:0adv:1 dea:3 hld:3 ttl:2 scl:10 chksum:0xa93c 102.53.5.1Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide 10153-1002426-02