From: groupstudy email (groupstudy@gmail.com)
Date: Wed Mar 14 2007 - 12:47:51 ART
Hello Group,
I have a question perhaps someone in the group can help with. I have a
3750 switch that I am doing some testing on and I am seeing some unexpected
behaviour.
I have two VLANs; one for r1 and one for r2. On the other side of these
routers, live a network that can be accessed via both routers.
___________
| |
R1 R2
| |
-------- --------
| |
Switch1
On the switch (which has a VLAN interface configured for each router VLAN) I
have configured two static routes; one pointing to r1 and the other to r2
(equal cost routes).
My understanding is that by default, fast switching is enabled on the switch
so load balancing is happening on a per-destination basis. This is what all
documentation I am encountering is saying. I would like the switch to load
balance on a per-packet basis so I have configured "no ip route-cache" under
both VLAN interfaces. After this I would expect to see the asterisk in the
"show ip route x.x.x.x x.x.x.x" command on the switch moving between the two
different paths that are configured. It is not moving. I would also expect
to see traffic arriving on both router interfaces from the switch. I only
see one router receiving this traffic.
Am I missing something in my config or is my understanding of this
functionality incorrect?
Any help would be greatly appreciated.
Thanks!
S. Rick
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