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Uplink Balancing

BenjaminRamezan

I have 2 connections and I'm setting up the uplink balancing. I've added both connections to active and set the weights I wanted but I'm alittle confused on what Persistence Timeout is. Could someone let me know what that is and what is a good starting point for that?



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    I agree that the description in the Help/Manual is not helpful.

    The first thing to know is that a given connection is never failed back to what was the preferred interface.  For example, VoIP calls and RED tunnels will stay on the fail-over interface until the call is ended or the RED tunnel is restarted.

    If there are no explicit Multipath rules, or none for which specific traffic qualifies, the default is 'Itf Persistence: by Connection', so the default is to start any new connections on the failed interface as soon as it is back up.  I have witnessed new VoIP calls starting on the preferred interface as soon as it was available.  I had expected that the 'Persistence Timeout would have prevented the new calls from being handled on the preferred interface, but it did not.

    Has anyone tested the effect of the 'Persistence Timeout' setting?

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
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