Parsing issues with bgpdump (unknown attribute 0)
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Alexis Fasquel
alexis at pch.net
Fri Oct 9 19:35:22 CEST 2015
Hello everyone, I’ve been using BGPDump to collect BGP data across multiple BGP server. Unfortunately, I’ve been having some issues parsing some MRT files. So I have a file (provided in attachment) that has been created by a Quagga instance (quagga-0.99.22.1-2013051601). All the beginning of the file seems to be parsed correctly, but at some point, I get a message with unknown attributes. As you can see on the screenshot below, the strange part about it is that the attribute type is supposedly 0 —which is not a correct attribute type if I’m referring to the RFC. Different versions of bgpdump have been tested, without any changes. And the actual issues come up right after: every announcement after this message seems to have something wrong (wrong prefix length/wrong AS path values…): Does anyone already encountered such troubles? Could it be a bug from BGPDump somewhere? Let me know if you have any idea or want some more detail about the issue. Alexis Fasquel Software Engineer @ PCH <http://www.pch.net/> +1-415-694-0585 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: Screenshot 2015-10-09 03.48.10.png Type: image/png Size: 123746 bytes Desc: not available URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment.png> -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: Screenshot 2015-10-09 04.11.44.png Type: image/png Size: 133693 bytes Desc: not available URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment-0001.png> -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment-0002.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: route-collector.pao.pch.net-mrt-bgp-updates-2015-08-01-04-12.gz Type: application/x-gzip Size: 6787 bytes Desc: not available URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment.bin> -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment-0003.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 842 bytes Desc: Message signed with OpenPGP using GPGMail URL: <https://lists.ripe.net/ripe/mail/archives/ris-users/attachments/20151009/d70fc2bd/attachment.sig>
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