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ASA Redundant Interface Failover

Cody Ridge
Beginner
Beginner

Hello,

I have two ASA 5540s, ver 8.4 configured in Active/Standby failover.

I am also using the redundant interface feature for my Inside interface.  Gig0/0 is the active primary and Gig0/1 is standby.

I will activate failover monitoring of the Inside interface using the monitor inside command.

My question concerns the failover monitoring of the redundant interface.  If the gig0/0 connection were to fail would the Gig0/1 interface become Active, AND simultaneously result in a full device failover?

Or, does Gig0/1 of the Inside interface redundant pair simply become active and not change the Inside interface device failover state?  Thus NOT resulting in a device failover.

Regards,

1 ACCEPTED SOLUTION

Accepted Solutions

brquinn
Beginner
Beginner

"When  the active interface fails over to the standby interface, this activity  does not cause the redundant interface to appear to be failed when  being monitored for device-level failover. Only when both physical  interfaces fail does the redundant interface appear to be failed."

http://www.cisco.com/en/US/docs/security/asa/asa82/configuration/guide/intrface.html#wpmkr1097039

Thanks,

Brendan

View solution in original post

1 REPLY 1

brquinn
Beginner
Beginner

"When  the active interface fails over to the standby interface, this activity  does not cause the redundant interface to appear to be failed when  being monitored for device-level failover. Only when both physical  interfaces fail does the redundant interface appear to be failed."

http://www.cisco.com/en/US/docs/security/asa/asa82/configuration/guide/intrface.html#wpmkr1097039

Thanks,

Brendan

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