Application Delivery (ADX)

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Contributor
Posts: 26
Registered: ‎05-24-2010

IP VRRP-E Priority

Hi,

How can I set any specific ADX to always become master for IP VRRP-E, i.e. if master goes down and then come up again will become master again.

Thanks

Super Contributor
Posts: 1,087
Registered: ‎12-13-2009

Re: IP VRRP-E Priority

Hi Syed,

     This is done by the Backup priority command.  Is the example below the Active router for VRID 1 will be router 1, the active router for VRID 2 is router 2.

     When router 1 comes back up after a failure it will take controll as it has the highest priority.

outer1(config)# router vrrp-extended

Router1(config)# interface ethernet 1/6

Router1(config-if-1/6)# ip address 192.53.5.2/24

Router1(config-if-1/6)# ip vrrp-extended vrid 1

Router1(config-if-1/6-vrid-1)# backup priority 110 track-priority 20

Router1(config-if-1/6-vrid-1)# track-port ethernet 2/4

Router1(config-if-1/6-vrid-1)# ip-address 192.53.5.254

Router1(config-if-1/6-vrid-1)# activate

VRRP router 1 for this interface is activating

Router1(config-if-1/6-vrid-1)# exit

Router1(config)# interface ethernet 1/6

Router1(config-if-1/6)# ip vrrp-extended vrid 2

Router1(config-if-1/6-vrid-1)# backup priority 100 track-priority 20

Router1(config-if-1/6-vrid-1)# track-port ethernet 2/4

Router1(config-if-1/6-vrid-1)# ip-address 192.53.5.253

Router1(config-if-1/6-vrid-1)# activate

VRRP router 2 for this interface is activating

Router2(config)# router vrrp-extended

Router2(config)# interface ethernet 5/1

Router2(config-if-5/1)# ip address 192.53.5.3/24

Router2(config-if-5/1)# ip vrrp-extended vrid 1

Router2(config-if-5/1-vrid-1)# backup priority 100 track-priority 20

Router2(config-if-5/1-vrid-1)# track-port ethernet 3/2

Router2(config-if-5/1-vrid-1)# ip-address 192.53.5.254

Router2(config-if-5/1-vrid-1)# activate

VRRP router 1 for this interface is activating

Router2(config-if-5/1-vrid-1)# exit

Router2(config)# interface ethernet 5/1

Router2(config-if-5/1)# ip vrrp-extended vrid 2

Router2(config-if-5/1-vrid-1)# backup priority 110 track-priority 20

Router2(config-if-5/1-vrid-1)# track-port ethernet 2/4

Router2(config-if-5/1-vrid-1)# ip-address 192.53.5.253

Router2(config-if-5/1-vrid-1)# activate

VRRP router 2 for this interface is activating

Brocadian
Posts: 1
Registered: ‎04-07-2009

Re: IP VRRP-E Priority

By default, VRRP-e works in preempt mode. When a master goes down and comes backup, if its VRID backup priority is greater than VRID priority of peer ADX, it will retain its master state. As Michael suggested, assign higher backup priority to VRID on the designated master ADX compared to peer ADX.

VIP-group is another useful feature, when VRRP-e is used on ADX systems running in HA mode. You can track the state of VIPs, static-NAT IPs and dynamic-NAT-pool IPs w.r.t. to the state of VRID using this feature.

Hope this helps.

Regards,

Satish

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