[c-nsp] ASR9k: BGP state = Idle (No route to multi-hop neighbor)

[judy teng]

The BGP session is under VRF. The next hop must be reachable from the VRF. Is loopback1 reachable by neighbor? Is loopback1 in VRF?

-Judy

--- On Fri, 12/28/12, John Neiberger <jneiberger at gmail.com> wrote:

> From: John Neiberger <jneiberger at gmail.com>
> Subject: Re: [c-nsp] ASR9k: BGP state = Idle (No route to multi-hop neighbor)
> To: "Jason Lixfeld" <jason at lixfeld.ca>
> Cc: "<cisco-nsp at puck.nether.net> NSP" <cisco-nsp at puck.nether.net>
> Date: Friday, December 28, 2012, 10:34 PM
> I'm still a noob to this sort of
> configuration, so I just have a question.
> Does it matter that the next hop is in the default global
> table and not in
> the VRF?
> 
> John
> 
> 
> On Fri, Dec 28, 2012 at 2:58 PM, Jason Lixfeld <jason at lixfeld.ca>
> wrote:
> 
> > Hi there,
> >
> >
> > Unless I'm doing something really silly, I can't seem
> to get a multi-hop
> > ebgp session up on an ASR9k.  I'm wondering if
> anyone can spot something I
> > might have overlooked or am just not aware of :
> >
> > The neighbor reports:
> >
> > BGP state = Idle (No route to multi-hop neighbor)
> >
> > Which is odd because there is a route for this in the
> BGP table already.
> >  It's pingable, etc.
> >
> > RP/0/RSP0/CPU0:asr9k#show route vrf Inetv4 1.1.1.254
> > Fri Dec 28 16:49:58.718 EST
> >
> > Routing entry for 1.1.1.252/30
> >   Known via "bgp 1", distance 200,
> metric 1, type internal
> >   Installed Dec 21 16:54:49.859 for
> 6d23h
> >   Routing Descriptor Blocks
> >     2.2.2.2, from 3.3.3.3
> >       Nexthop in Vrf:
> "default", Table: "default", IPv4 Unicast, Table Id:
> > 0xe0000000
> >       Route metric is 1
> >   No advertising protos.
> > RP/0/RSP0/CPU0:asr9k#
> >
> > !
> > router bgp 1
> >  vrf Inetv4
> >   neighbor 1.1.1.254
> >    remote-as 65535
> >    ebgp-multihop 255
> >    update-source Loopback1
> >    ignore-connected-check
> >    address-family ipv4 unicast
> >     remove-private-AS
> >    !
> >   !
> >  !
> > !
> >
> > RP/0/RSP0/CPU0:asr9k#sh bgp vrf Inetv4 neighbors
> 1.1.1.254
> > Fri Dec 28 16:47:11.630 EST
> >
> > BGP neighbor is 1.1.1.254, vrf Inetv4
> >  Remote AS 65535, local AS 1, external link
> >  Remote router ID 0.0.0.0
> >   BGP state = Idle (No route to
> multi-hop neighbor)
> >   Last read 00:00:00, Last read before
> reset 00:00:00
> >   Hold time is 180, keepalive interval
> is 60 seconds
> >   Configured hold time: 180, keepalive:
> 60, min acceptable hold time: 3
> >   Last write 00:00:00, attempted 0,
> written 0
> >   Second last write 00:00:00, attempted
> 0, written 0
> >   Last write before reset 00:00:00,
> attempted 0, written 0
> >   Second last write before reset
> 00:00:00, attempted 0, written 0
> >   Last write pulse rcvd  not set
> last full not set pulse count 0
> >   Last write pulse rcvd before reset
> 00:00:00
> >   Socket not armed for io, not armed for
> read, not armed for write
> >   Last write thread event before reset
> 00:00:00, second last 00:00:00
> >   Last KA expiry before reset 00:00:00,
> second last 00:00:00
> >   Last KA error before reset 00:00:00,
> KA not sent 00:00:00
> >   Last KA start before reset 00:00:00,
> second last 00:00:00
> >   Precedence: internet
> >   Graceful restart is enabled
> >   Restart time is 120 seconds
> >   Stale path timeout time is 360
> seconds
> >   Enforcing first AS is enabled
> >   Multi-protocol capability not
> received
> >   Received 0 messages, 0 notifications,
> 0 in queue
> >   Sent 0 messages, 0 notifications, 0 in
> queue
> >   Minimum time between advertisement
> runs is 0 secs
> >
> >  For Address Family: IPv4 Unicast
> >   BGP neighbor version 0
> >   Update group: 0.6 Filter-group:
> 0.0  No Refresh request being processed
> >   eBGP neighbor with no inbound or
> outbound policy; defaults to 'drop'
> >   Private AS number removed from updates
> to this neighbor
> >   AF-dependent capabilities:
> >     Graceful Restart capability
> advertised
> >       Local restart time is
> 120, RIB purge time is 600 seconds
> >       Maximum stalepath time
> is 360 seconds
> >   Route refresh request: received 0,
> sent 0
> >   0 accepted prefixes, 0 are bestpaths
> >   Cumulative no. of prefixes denied: 0.
> >   Prefix advertised 0, suppressed 0,
> withdrawn 0
> >   Maximum prefixes allowed 1048576
> >   Threshold for warning message 75%,
> restart interval 0 min
> >   An EoR was not received during
> read-only mode
> >   Last ack version 0, Last synced ack
> version 0
> >   Outstanding version objects: current
> 0, max 0
> >   Additional-paths operation: None
> >
> >   Connections established 0; dropped 0
> >   Local host: 0.0.0.0, Local port: 0
> >   Foreign host: 1.1.1.254, Foreign port:
> 0
> >   Last reset 00:00:00
> >   External BGP neighbor may be up to 255
> hops away.
> > RP/0/RSP0/CPU0:asr9k#
> >
> > Thanks in advance.
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>