[j-nsp] Strange BGP behaviour on 10.0R3

[Christian]

  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<wjackson at sapphire.gi>  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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