Forum Discussion

Luca_55898's avatar
Luca_55898
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May 21, 2012

VLAN Failsafe

I have two BIG-IP 1600 in a HA config.   I need a failover to occur if the active unit looses its network connection to the internal and/or external network.     So i have configured VLAN Fai...
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nitass's avatar
nitass
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May 21, 2012
It seems I should only configure VLAN Failover on the active unit, if i configure it on both units they both go into standby if a network connection is lost. Is this correct?is this wha tyou are looking for?

 

sol12277: Change in Behavior: How simultaneous failsafe events affect a redundant system

 

http://support.f5.com/kb/en-us/solutions/public/12000/200/sol12277.html

 

 

They way i have configured HA is using a dedicated VLAN called LTM-HA. This is configured on both devices, each with their own self IP. This is also one of the VLANs i have configured failsafe on. Does that sound ok?i do not think vlan failsafe should be enabled on ha vlan. for example, if ha vlan is down but hardware failover cable is still working fine, enabling vlan failsafe on ha vlan would trigger failover.

 

 

Also one question on floating IP addresses, it seems i need to use three addresses to make a floating IP. Two IPs for the static self IP on each unit, then one IP as the floating, is that also correct?yes, three addresses; two are non-floating (one per unit) and one is floating.