HSRP: RUNNING ON SWITCH


Live Scenario

6513_1 & 6513_2, both are doing Load balance for traffic from different VLAN’s

 

Investigation 1

Consider case of Group 99 to understand:
6513_1# sh standby br | i 99
Interface Grp Prio P State Active addr Standby addr Group addr
Vl13 99 100 P Standby 10.144.13.254 local 10.144.13.1
Vl14 99 110 P Standby 10.144.14.254 local 10.144.14.1
Vl15 99 100 P Standby 10.144.15.254 local 10.144.15.1
Vl16 99 110 P Active local 10.144.16.254 10.144.16.1
Vl17 99 100 P Standby 10.144.17.254 local 10.144.17.1

6513_2# sh standby br | i 99
Interface Grp Prio P State Active addr Standby addr Group addr
Vl13 99 110 P Active local 10.144.13.253 10.144.13.1
Vl14 99 110 P Active local 10.144.14.253 10.144.14.1
Vl15 99 110 P Active local 10.144.15.253 10.144.15.1
Vl16 99 100 P Standby 10.144.16.253 local 10.144.16.1
Vl17 99 110 P Active local 10.144.17.253 10.144.17.1

Conclusion

Total VLAN’s: 13, 14,15,16,17
For 6513_1: Active for VLAN’s : 16, Standby for VLAN’s: 13,14,15,17
For 6513_2: Active for VLAN’s: 13,14,15,17, Standby for VLAN’s: 16

 

Investigation 2

Now, finding out on which SVI ports on 6513_1, HSRP is enabled
standby 99 ip 10.144.13.1 : For VLAN 13
standby 99 preempt delay minimum 120
standby 99 ip 10.144.14.1 : For VLAN 14
standby 99 priority 110
standby 99 preempt delay minimum 120
standby 99 ip 10.144.15.1 : For VLAN 15
standby 99 preempt delay minimum 120
standby 99 ip 10.144.16.1
standby 99 priority 110

 

Conclusion

For a single group, for every SVI, configuration is done

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