From: allboutcisco (frenzeus@streamyx.com)
Date: Tue May 09 2006 - 08:45:04 ART
Hi Nawaz,
It's Serial, frame relay.
Thanks.
----- Original Message -----
From: "Nawaz, Ajaz" <Ajaz.Nawaz@bskyb.com>
To: "'allboutcisco'" <frenzeus@streamyx.com>; "Cisco certification"
<ccielab@groupstudy.com>
Sent: Tuesday, May 09, 2006 6:46 PM
Subject: RE: BGP stuck in OPENSENT/OPENCONFIRM
>
> What's the media type for transport between the two neighbors?
>
> Ajaz
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> allboutcisco
> Sent: 09 May 2006 11:00
> To: Cisco certification
> Subject: BGP stuck in OPENSENT/OPENCONFIRM
>
> Hi group,
>
> Has anyone ever experienced BGP neighbor formation, where the states of
> one
> end is in OPENSENT while the remote end is OPENCONFIRM?
>
> Initially the neighbor state at both ends reaches ESTABLISHED state, but
> after about 2min+ a notification is sent by one of them, thereby closing
> the
> connection:
> (154.1.0.3 ---- 154.1.0.5)
>
> %BGP-3-NOTIFICATION: sent to neighbor 154.1.0.3 4/0 (hold time expired) 0
> bytes
>
> I did a further debug ip bgp & debug ip tcp transactions, noticed that
> from
> the debug output, all BGP capabilities were negotiated properly from the
> receipt of the OPEN message, however one of the routers is reporting tcp
> bad
> segment. All else is at it's default, no acl, no change of tcp mss size or
> whatsoever at both routers interface.
>
> The following is part of the debug i collected:
>
> TCP0: bad seg from 154.1.0.5 -- outside window: port 179 seq 2431366053
> ack
> 3476515037 rcvnxt 2431366098 rcvwnd 16339 len 45
> 154.1.0.3:179 <---> 154.1.0.5:17043 congestion window changes
> cwnd from 1461 to 1460, ssthresh from 65535 to 2920
> TCP0: timeout #1 - timeout is 3674 ms, seq 3476515037
> TCP: (179) -> 154.1.0.5(17043)
> TCP0: timeout #2 - timeout is 7348 ms, seq 3476515037
> TCP: (179) -> 154.1.0.5(17043)
> TCP0: Data repacketized, seq 3526658343, sent 298 byte
>
> U might need to repaste onto notepad.
>
> Any ideas? BGP neighbor is not forming..
>
> Thanks.
>
> Kenny
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
> -----------------------------------------
> Information in this email including any attachments may be
> privileged, confidential and is intended exclusively for the
> addressee. The views expressed may not be official policy, but the
> personal views of the originator. If you have received it in error,
> please notify the sender by return e-mail and delete it from your
> system. You should not reproduce, distribute, store, retransmit,
> use or disclose its contents to anyone.
>
> Please note we reserve the right to monitor all e-mail
> communication through our internal and external networks.
>
> SKY and the SKY marks are trade marks of British Sky Broadcasting
> Group plc and are used under licence. British Sky Broadcasting
> Limited (Registration No. 2906991), Sky Interactive Limited
> (Registration No. 3554332) and Sky Subscribers Services Limited
> (Registration No. 2340150) are direct or indirect subsidiaries of
> British Sky Broadcasting Group plc (Registration No. 2247735). All
> of the companies mentioned in this paragraph are incorporated in
> England and Wales and share the same registered office at Grant
> Way, Isleworth, Middlesex TW7 5QD.
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:21 ART