On 2/12/07, Kelvin Chiang <[EMAIL PROTECTED]> wrote:


I've got a question associated with multi-wan load balancing. I have 2
physical network interface connected to 2 different network. I have
configured it with Load Balancing. I monitored that behavior of the Load
Balancing and I realized that the fail-over is quite effective. However, I
also experience the following, can someone help to verify this is what it is
supposed to behave?

1. The failover is effective; however, I could not see the Load Balancing. I
used 3 computers to perform download from the Internet, all of them were
loaded to the first WAN link instead of loading one or two on the 2nd
Internet link. Is the load balancing triggered by certain threshold?

Round robin'd flows.  You could have just had some serious bad luck,
I'm guessing that you have a rule wrong somewhere though.


2. I performed a download and monitor which Internet link it established
through, then I killed this link. I noticed that the download session was
then frozen. The failover does not support switch-over of any session,
correct? Of course, new session was put onto the "live" Internet link
without any issue.

Right, not possible (unless you can run a routing protocol at the
edge).  In-flight connections will always be dropped on failover due
to NAT and TCP states.

--Bill

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