From: Marko Milivojevic (markom@markom.info)
Date: Tue Oct 14 2008 - 14:15:28 ART
Are those L2 or L3 interfaces between SW1 and SW2 (it says trunk, but
that can be only on one end) and SW3 and client? Are there some other
paths between two points that could introduce asymmetric routing and
cam timeouts?
On Tue, Oct 14, 2008 at 16:20, Mark Stephanus Chandra
<mark.chandra@gmail.com> wrote:
> Guys,
>
>
>
> I have a network diagram like this :
>
>
>
> SW1(Gateway)(root bridge)-----trunk ---------sw2--------trunk
> -------Sw3-----------CLIENT
>
>
>
> Recently, The CLient have experience intermittent traffic to the gateway.
>
> I have check all the spanning tree vlan, and it works ok.
>
>
>
> I notice one thing, once it cannot ping the gateway (SW1), we must ping the
> nearest switch first (SW3), and we have first timed out and a reply, then we
> can ping the gateway again. So I notice here, the arp is reset on the
> switch. But funny enough, SW3 have 2 VLAN (804 and 807) and the problem is
> the users on VLAN 807. VLAN 804 have no problem.
>
>
>
> This symptoms currently become more often and we have around 100 user in
> this floor.
>
>
>
> The other floor have the same network diagram and not experience a problem
> at all.
>
>
>
>
>
> Can you guys tell me what problem possibly cause this to happen ?
>
>
>
> I'm running out of idea.
>
>
>
>
>
> Regards
>
>
>
> Mark Stephanus Chandra
> IT Consultant
>
>
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