nanog mailing list archives

Re: BGP next-hop


From: Heath Jones <hj1980 () gmail com>
Date: Thu, 30 Sep 2010 14:14:13 +0100

Cheers Jeff.

I thought i'd give that a go, but it doesnt seem to be working for some reason!

(This is without next-hop in IGP)

AS5000_LA#show ip bgp
BGP table version is 3, local router ID is 10.0.0.5
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 100.10.0.0/16    10.0.0.6                               0 1000 3000 3000 ?
* i                 10.0.0.10                0    100      0 2000 3000 ?

AS5000_LA#show ip bgp rib-failure
Network            Next Hop                      RIB-failure   RIB-NH Matches
AS5000_LA#

AS5000_LA#show ip bgp 100.10.0.0
BGP routing table entry for 100.10.0.0/16, version 3
Paths: (2 available, best #1, table Default-IP-Routing-Table)
Flag: 0x820
  Advertised to update-groups:
     2
  1000 3000 3000
    10.0.0.6 from 10.0.0.6 (10.0.0.13)
      Origin incomplete, localpref 100, valid, external, best
  2000 3000
    10.0.0.10 (inaccessible) from 10.0.0.2 (10.0.0.9)
      Origin incomplete, metric 0, localpref 100, valid, internal


From the detail view, the route is marked as inaccessible. Perhaps
this is the only way to get to it..


Heath


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