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Steve_M__153836's avatar
Steve_M__153836
Icon for Nimbostratus rankNimbostratus
May 21, 2014

What is the impact of adding a floating IP to an active HA LTM pair?

Hello. I have recently started a new position and while going through the environment I've found a couple pairs of LTMs in HA config with floating IPs for some networks and not for others. I generall...
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Steve_M__153836's avatar
Steve_M__153836
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We are planning to configure network mirroring and network failover. I was under the impression a floating IP was required on all traffic VLANs to support a seamless failover with those configured. Please correct me if I am wrong. We had a F5 consultant do a review of our devices and he stated we are at risk of an outage in the event of a failover without that floating IP configured (having some trouble getting further info out of him).

 

What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
May 22, 2014
That is correct, without floating IPs you will suffer in the event of a failover and it would be pointless to user mirroring and failover without them. I'd also recommend you use MAC Masquerade too.