[Bridge] bridge stp problem
munro
munro.biswal at smartbridges.com
Thu Apr 21 19:24:50 PDT 2005
Hi, ppl,
I am using kernel 2.4.25 and having this peculiar problem on my
ixp425. When i have 2 ethernet ports of the board connected to the same
linksys switch running STP. ixp0 and ixp1 are the name of my ethernet
ports enslaved to the same bridge( br0)and my PC is also connected to
the switch.
IXP425 -br0 (192.168.2.1)
|_ixp0|--- | | (192.168.2.11)
|_ixp1|---- |Linksys |----------<PC>
When i ping from my PC to the board (when both ixp0 and ixp1 are
connected to the switch), everything works fine.
In that case ixp1 is in blocking state and ixp0 is in forwarding state.
The issue here is when i unplug ixp0 from the switch (the one which is
forwading state), ixp1 comes to forwardinmg state after the state
changes(listening-learning---forwading), but there is a huge delay of
around 15-17 mins till i can ping the board(IXP425) from my PC. i went
through the bridging code and put debug messages to see that it comes to
forwarding state immediately.
On the board if i sniff using ethereal, it shows that my ICMP request
never goes through till 17 mins..
AFter 17 mins, it starts pining ok.
Now thats very strange. WHo induces this delay of 17 mins after the
topology changes.
Pls. advise !! very urgent .
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