RE: lan interface ip ospf network point-to-multipoint flapping

From: Tony Schaffran (groupstudy@cconlinelabs.com)
Date: Thu Jun 14 2007 - 11:01:54 ART

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This sounds like an MTU mismatch.

Check your MTU's on each interface and correct as necessary according to
your requirements.

Tony Schaffran
Network Analyst
CCIE #11071
CCNP, CCNA, CCDA,
NNCDS, NNCSS, CNE, MCSE
 
www.cconlinelabs.com
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of ccie
ccie
Sent: Wednesday, June 13, 2007 11:55 AM
To: ccielab@groupstudy.com
Subject: Fwd: lan interface ip ospf network point-to-multipoint flapping

Hi All,

I have 2 devices directly connected (router, switch), pingable running ospf
connected to bb ospf.
When I set the type to point-to-multipoint, ospf is flapping.

I see that the router's hello are not received from the switch even tough
they are send. There is no acl, no broadcast issue as its a lan link. What
could i be missing ?

Thanks for your help

Biggie

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