From: Mark Stephanus Chandra (mark.chandra@gmail.com)
Date: Tue Oct 14 2008 - 13:20:52 ART
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
Blogs and organic groups at http://www.ccie.net
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