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Malcolm Turnbull wrote:
Paul Nowoczynski wrote:
Hi,
I setup an LVS-DR and for testing purposes decided to load balance SSHD.
While watching tcpdump on the Director's nic I noticed that all
traffic from the client's ssh session is bouncing off the
Director to the real server. This seems like the correct behavior
since the client only knows the arp address of the Director but this is
not optimal behavior for load balancing upload traffic.
I was wondering if there was any way to bypass the Director once
a connection is established?
Sounds like either a server code change or a layer 7 switch change.
i.e. web server sends its own valid public ip for uploads..
and the VIP for everything else.
I think the "problem" occurs before the connection is even
made...it's the arp reply from the Director, with the
Director's MAC address. It's a layer2 issue - the client
or router accessing the LVS services always talks through the
Director because it's arp table tells it to.
Not sure if your average layer 7 switch is clever enough to do that :-).
I dont see how a layer 4 switch could do it.
Thanks,
Paul
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