[nsp] OSPF Problems with Extreme Switches and Cisco Routers
.
Todd, Douglas M.
DTODD at PARTNERS.ORG
Tue Jan 21 08:56:49 EST 2003
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Daniel:
Make sure that your timers are the same on both sides (dead/hello).
In addition make sure that extreme is taking the lan as a broadcast
and not a non-broadcast or ptp.
You can do a debug ip os packet on the cisco to help w/finding what
is causing the timers to expire.
==DMT>
> -----Original Message-----
> From: Daniel Concepcion [mailto:dani at danielcp.net]
> Sent: Tuesday, January 21, 2003 6:22 AM
> To: cisco-nsp at puck.nether.net
> Subject: [nsp] OSPF Problems with Extreme Switches and Cisco
> Routers.
>
>
> Hi People,
>
> I have the following problem:
> When I connect two cisco routers to the Extreme switch and
> use dot1q vlan for
> interconnect the two routers. The OSPF adjacency in the
> cisco routers change
> every few minutes.
>
> A router: Loading to Full
> B Router: Neighbor Down: Dead timer expired
>
>
> I have cfg the vlan with the IP protocol and the ports are
> also in use in
> other vlan as untag without any problem and with the extreme
> talking ospf
> with the cisco routers without issues.
>
> Do you know if i need cfg the vlan in the extreme with any special
> ? Is out there any know issue with this configuration, I don't
> find anything :(
> If we use cisco switches and dot1q i don't have any problem.
>
>
> We use cisco 12.0.23S over 7507 and 7206. ( we get the same
> problem with other
> IOS version)
> And Extremeware Version 6.1.5 (Build 20) over Summit48i
>
>
>
> Regards,
> Daniel
>
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