high latency after HA failover

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high latency after HA failover

L3 Networker

Hello team,


I have an HA active/passive with a couple of PA-3250. After failover from active to passive there are a high latency for all the connections and some Http/https sessions cannot be established. I see in the traffic logs many aged out sessions and tcp-rst-from-server and also tcp-rst-from-client. After one minute aprox. the system gets stable. Is this expected behavior?



Thanks and Regards,



Cyber Elite
Cyber Elite


It can be expected behaviour depending on the configuration. 

You aren't by chance using LACP aggregates for anything are you? 

Hi BPry,


Thanks for you answer.


No I´m not using LCAP.






Then I really wouldn't expect that much of a delay unless your hitting an issue with STP. Have you verified that you aren't just hitting a normal delay as the network reconverges following the failover? 

Hi i'm experiencing same issue here but i have 1 lacp connection. How should it lead to high latencies?

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