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<div style="direction:ltr">No problem,</div>
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<div style="direction:ltr">Will send a pcap to you shortly. </div>
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<div>Kind Regards,</div>
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<div>David Hooton</div>
<div>Founder | Ordnance</div>
<div>Cloud Scale, Carrier Grade</div>
<div>P: +61415850000 T: @dave_hooton W: <a dir="ltr" href="http://ordnance.co">ordnance.co</a></div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Donald Sharp <sharpd@cumulusnetworks.com><br>
<b>Sent:</b> Wednesday, September 27, 2017 9:45:59 PM<br>
<b>To:</b> David Hooton<br>
<b>Cc:</b> dev@lists.frrouting.org<br>
<b>Subject:</b> Re: [dev] IPv6 Multihop BGP & Vendor specific capability 131</font>
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<div class="PlainText">David -<br>
<br>
Can you capture a pcap of the session? This would help us<br>
tremendously in tracking down where the issue is.<br>
<br>
thanks!<br>
<br>
donald<br>
<br>
On Wed, Sep 27, 2017 at 5:25 AM, David Hooton <david.hooton@ordnance.co> wrote:<br>
> Hi All,<br>
><br>
><br>
><br>
> I’m running 3.0-rc2 and appear to have found a bug in the IPv6 multihop BGP<br>
> code.<br>
><br>
><br>
><br>
> The box is configured to peer with a 3rd party ASR9000 and can’t seem to<br>
> keep the session up. It will download ~30,000 routes then reset the session<br>
> with the following errors in the logs.<br>
><br>
><br>
><br>
> Sep 27 19:19:45 ord-285eec43a74305dd bgpd[16943]: bgp_mp_reach_parse:<br>
> (2001:XX00:100::30:XXX) Failed to read NLRI<br>
><br>
> Sep 27 19:19:45 ord-285eec43a74305dd bgpd[16943]: %NOTIFICATION: sent to<br>
> neighbor 2001:XX00:100::30:XXX 3/1 (UPDATE Message Error/Malformed Attribute<br>
> List) 0 bytes<br>
><br>
> Sep 27 19:19:45 ord-285eec43a74305dd bgpd[16943]: 2001:XX00:100::30:XXX:<br>
> Attribute MP_REACH_NLRI, parse error<br>
><br>
> Sep 27 19:19:45 ord-285eec43a74305dd bgpd[16943]: %ADJCHANGE: neighbor<br>
> 2001:XX00:100::30:XXX(Unknown) in vrf Default Down BGP Notification send<br>
><br>
> Sep 27 19:19:47 ord-285eec43a74305dd bgpd[16943]: 2001:XX00:100::30:XXX<br>
> Vendor specific capability 131<br>
><br>
> Sep 27 19:19:47 ord-285eec43a74305dd bgpd[16943]: %ADJCHANGE: neighbor<br>
> 2001:XX00:100::30:XXX(Unknown) in vrf Default Up<br>
><br>
> Sep 27 19:19:49 ord-285eec43a74305dd bgpd[16943]: bgp_mp_reach_parse:<br>
> (2001:XX00:100::30:XXX) Failed to read NLRI<br>
><br>
> Sep 27 19:19:49 ord-285eec43a74305dd bgpd[16943]: %NOTIFICATION: sent to<br>
> neighbor 2001:XX00:100::30:XXX 3/1 (UPDATE Message Error/Malformed Attribute<br>
> List) 0 bytes<br>
><br>
> Sep 27 19:19:49 ord-285eec43a74305dd bgpd[16943]: 2001:XX00:100::30:XXX:<br>
> Attribute MP_REACH_NLRI, parse error<br>
><br>
> Sep 27 19:19:49 ord-285eec43a74305dd bgpd[16943]: %ADJCHANGE: neighbor<br>
> 2001:XX00:100::30:XXX(Unknown) in vrf Default Down BGP Notification send<br>
><br>
><br>
><br>
> A single hop BGP session seems to work fine, it is just the multihop<br>
> sessions which won’t stay up. Any suggestions?<br>
><br>
><br>
><br>
> Kind Regards,<br>
><br>
> David Hooton<br>
> Founder | Ordnance<br>
><br>
> Cloud Scale, Carrier Grade<br>
> P: +61415850000 T: @dave_hooton W: ordnance.co<br>
><br>
><br>
><br>
><br>
> _______________________________________________<br>
> dev mailing list<br>
> dev@lists.frrouting.org<br>
> <a href="https://lists.frrouting.org/listinfo/dev">https://lists.frrouting.org/listinfo/dev</a><br>
><br>
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