02-11-2009 10:37 AM - edited 03-04-2019 03:31 AM
I have a cisco 2650 connecting to an MPLS-aware PE via eBGP. The configuration is as follows:
router bgp 65512
no synchronization
bgp log-neighbor-changes
redistribute connected
neighbor 10.253.0.2 remote-as 23532
neighbor 10.253.0.2 update-source Loopback0
neighbor 10.253.0.2 next-hop-self
no auto-summary
ip route 10.253.0.2 255.255.255.255 10.105.250.1
The BGP peer is set up between the loopback on the CE to the loopback on the vrf on the PE. I am able to ping each loopback from the other's source interface. Here is the sh ip bgp neigh:
BGP neighbor is 10.253.0.2, remote AS 23532, external link
BGP version 4, remote router ID 0.0.0.0
BGP state = Idle
Last read 00:00:01, hold time is 180, keepalive interval is 60 seconds
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 0 0
Notifications: 0 0
Updates: 0 0
Keepalives: 0 0
Route Refresh: 0 0
Total: 0 0
Default minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
BGP table version 4, neighbor version 0
Index 1, Offset 0, Mask 0x2
NEXT_HOP is always this router
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 0 0
Prefixes Total: 0 0
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 0
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
Total: 0 0
Number of NLRIs in the update sent: max 0, min 0
Connections established 0; dropped 0
Last reset never
External BGP neighbor not directly connected.
No active TCP connection
It shows to be idle- yet it shouldnt. Suggestions?
Solved! Go to Solution.
02-11-2009 10:45 AM
Greg
EBGP expects the peering address to be on a directly connected subnet. If you want to peer using the loopbacks add this to your config -
router bgp 65512
neighbor 10.253.0.2 ebgp-multihop 2
Hopefully the other end ie. the PE also has this configured.
Jon
02-11-2009 10:45 AM
Greg
EBGP expects the peering address to be on a directly connected subnet. If you want to peer using the loopbacks add this to your config -
router bgp 65512
neighbor 10.253.0.2 ebgp-multihop 2
Hopefully the other end ie. the PE also has this configured.
Jon
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