NoNeg Status on BGP

Unanswered Question
Dec 17th, 2009

Can anyone tell me what this means?  I am having a hard time finding any documentation on it.

xxxx#sh ip bgp sum                      
BGP router identifier xxxxxxxx, local AS number xxxx
BGP table version is 105, main routing table version 105
300136 network entries using 35115912 bytes of memory
300137 path entries using 15607124 bytes of memory
51456/7 BGP path/bestpath attribute entries using 6380544 bytes of memory
46319 BGP AS-PATH entries using 1207906 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 58311486 total bytes of memory
300122 received paths for inbound soft reconfiguration
BGP activity 3512567/3212429 prefixes, 4056758/3756619 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
xxxx:xxx:61F::11   4   701  251053  262007        0    0    0 00:04:51 (NoNeg)
xx.xx.228.5    4   701 5404546  267918      105    0    0 00:22:44        6

I have this problem too.
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Giuseppe Larosa Thu, 12/17/2009 - 05:14

Hello Vblaha,

you may need a neigh x:x:X  activate in address-family IPv6 unicast on the other device.

that no neg may mean no negotiate or no neighbor

verify also if your local node can reach the BGP endpoint.

Hope to help

Giuseppe

Jon Marshall Thu, 12/17/2009 - 05:16

It means that your router is advertising a capability that the peer is not configured for. Think it's usually to do with ipv4/ipv6 address family advertisements.

Jon

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