Cisco ACE to loadbalance same src port

Unanswered Question
Mar 26th, 2010

Hi Guys,

i need to loadbalance udp application from an appliance (Arbor). But this udp application is using same source port for every new sessions. The ACE sees this as a similar session and no loadbalacing is perform?

In this case, is there a method to configure the Cisco ACE to loadbalance sessions with same src port?

I have this problem too.
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Peter Koltl Wed, 03/31/2010 - 04:51

udp-fast-age is called 'per packet load balancing' in the manual. Actually, it is per-packet provided there is a response to each UDP packet as the response makes the connection to be flushed. As long as the connection is in the connection table the traffic goes to the same destination - which is bad news for you.

The UDP idle connection timeout is 120 s by default. I think the continuous stream maintains a single connection permanently even if you decrease that value (set timeout inactivity command) but it may be worth a test.

Per-packet LB can be done by a CEF router. ACE is connection-oriented - as far as I know.


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