Hello,
Checking for bgp msgs stuck in the outgoing queue is also a good clue for mtu issues :-)
Rgds,

Christian


Le 12/10/2010 13:42, Diogo Montagner a écrit :
Hi William,

Have you tried enable pmtud in this session ?

Tks

On 10/12/10, William Jackson<[email protected]>  wrote:
Hi



We are seeing some strange behavior on an MX with 10.0R3.



We have an Ethernet link to a switch where we have multiple eBGP peers.

We and the peer are seeing the session come up and then expiring with
hold-time received messages, other peers on the same segment work 100%.



When doing a pcap we are seeing the following happen:



Setup and establish session BGP session.

Once established our router then starts to send the updates to the
correct IP address but a different MAC.  The pcap doesn't show any
strange ARP behaviour, the MAC address that is suddenly used belongs to
another peer.



The session then obviously times out, we haven't seen messages or
indicators as to why this is happening.  JTAC are looking at it but
don't seem to know why either.

Anyone else seen this type of behavior?



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