When in the cluster config settings on the MM, when you assign a VRRP IP and VLAN for each MD being added to the cluster, the cluster manager will automatically create a VRRP ID across all cluster members, making that specific MD the Master (priority 255) and all others lower (235, 215, etc). For example, I have three controllers in my lab cluster that runs my network. They are:
VMC1 (ipaddr 192.168.200.13 - cluster VIP 192.168.200.23)
VMC2 (ipaddr 192.168.200.14 - cluster VIP 192.168.200.24)
VMC3 (ipaddr 192.168.200.15 - cluster VIP 192.168.200.25)
Below is the output from their 'show vrrp' output, but note that I only entered in the cluster cofig for each MD the cluster IP, the cluster VIP and VRRP vlan.
Note I also created a cluster-wide VIP for AP discovery as well (VRRP ID 200)
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(HH-VMC1) #show vrrp
Virtual Router 200:
Description AP_Discovery_200
Admin State UP, VR State MASTER
IP Address 192.168.200.20, MAC Address 00:00:5e:00:01:c8, vlan 200
Priority 255, Advertisement 1 sec, Preemption Disable Delay 0
Auth type PASSWORD, Auth data: ********
tracking is not enabled
Virtual Router 220:
Description
Admin State UP, VR State MASTER
IP Address 192.168.200.23, MAC Address 00:00:5e:00:01:dc, vlan 200
Priority 255, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
Virtual Router 221:
Description
Admin State UP, VR State BACKUP
IP Address 192.168.200.24, MAC Address 00:00:5e:00:01:dd, vlan 200
Priority 235, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
Virtual Router 222:
Description
Admin State UP, VR State BACKUP
IP Address 192.168.200.25, MAC Address 00:00:5e:00:01:de, vlan 200
Priority 215, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
(HH-VMC1) #
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(HH-VMC2) #show vrrp
Virtual Router 200:
Description AP_Discovery_200
Admin State UP, VR State BACKUP
IP Address 192.168.200.20, MAC Address 00:00:5e:00:01:c8, vlan 200
Priority 245, Advertisement 1 sec, Preemption Disable Delay 0
Auth type PASSWORD, Auth data: ********
tracking is not enabled
Virtual Router 220:
Description
Admin State UP, VR State BACKUP
IP Address 192.168.200.23, MAC Address 00:00:5e:00:01:dc, vlan 200
Priority 215, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
Virtual Router 221:
Description
Admin State UP, VR State MASTER
IP Address 192.168.200.24, MAC Address 00:00:5e:00:01:dd, vlan 200
Priority 255, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
Virtual Router 222:
Description
Admin State UP, VR State BACKUP
IP Address 192.168.200.25, MAC Address 00:00:5e:00:01:de, vlan 200
Priority 235, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
(HH-VMC2) #
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(HH-VMC3) #show vrrp
Virtual Router 200:
Description AP_Discovery_200
Admin State UP, VR State BACKUP
IP Address 192.168.200.20, MAC Address 00:00:5e:00:01:c8, vlan 200
Priority 235, Advertisement 1 sec, Preemption Disable Delay 0
Auth type PASSWORD, Auth data: ********
tracking is not enabled
Virtual Router 220:
Description
Admin State UP, VR State BACKUP
IP Address 192.168.200.23, MAC Address 00:00:5e:00:01:dc, vlan 200
Priority 235, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
Virtual Router 221:
Description
Admin State UP, VR State BACKUP
IP Address 192.168.200.24, MAC Address 00:00:5e:00:01:dd, vlan 200
Priority 215, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
Virtual Router 222:
Description
Admin State UP, VR State MASTER
IP Address 192.168.200.25, MAC Address 00:00:5e:00:01:de, vlan 200
Priority 255, Advertisement 1 sec, Preemption Enable Delay 0
Auth type NONE ********
tracking is not enabled
(HH-VMC3) #
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