The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: MP-BGP update layout request
Roger, Please see inline At 09:32 PM 7/16/2002, Roger Clark Williams wrote: Would anyone have a clean view, in a bit format or the information by which I could make that, of a MP-BGPv4 update carrying VPNv4 routing information form PE to PE? Something like one would find in an RFC would do just fine. I had this sample that might be of some help. BGP Update message (L3 and above:) 45 c0 00 83 00 09 00 00 fe 06 a5 17 0a 0d 01 3e 0a 0d 01 3d 00 b3 2a fa 74 99 e9 98 7a 8a dc 04 50 18 3f 4d c0 10 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 00 5b 02 00 00 00 44 40 01 01 02 40 02 00 80 04 04 00 00 00 00 40 05 04 00 00 00 64 c0 10 08 00 02 00 03 00 00 00 03 80 0e 21 00 01 80 0c 00 00 00 00 00 00 00 00 0a 0d 01 3e 00 76 00 01 71 00 00 00 01 00 00 00 01 c8 01 3e 04 From the above hex dump: IP Header: 45 c0 00 83 00 09 00 00 fe 06 a5 17 0a 0d 01 3e 0a 0d 01 3d TCP Header: 00 b3 2a fa 74 99 e9 98 7a 8a dc 04 50 18 3f 4d c0 10 00 00 BGP Update: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 00 5b 02 00 00 00 44 40 01 01 02 40 02 00 80 04 04 00 00 00 00 40 05 04 00 00 00 64 c0 10 08 00 02 00 03 00 00 00 03 80 0e 21 00 01 80 0c 00 00 00 00 00 00 00 00 0a 0d 01 3e 00 76 00 01 71 00 00 00 01 00 00 00 01 c8 01 3e 04 . The highlighted text (above) is MP_REACH_NLRI attribute. Hope this helps. Rajiv Someone in one of my VPNSC classes asked what the actual BGP packet headers and data blocks looked like, and I can't generate that info where I am.
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