Mpls with Ebgp and iBgp
Hello,
have configured Ebgp between R1 and R2 with AS1
and Ebgp between R6 and R7 with As2, I Bgp between R2 and R6 with As100
also have activated mpls on all interfaces of core (ISP) with IGP ospf
Here are details of BGP on R2 and R6 ie Pe's routes
BGP on R2
R2#sho run | s router bgp
router bgp 100
no synchronization
bgp log-neighbor-changes
neighbor 6.6.6.6 remote-as 100
neighbor 6.6.6.6 update-source Loopback0
neighbor 6.6.6.6 next-hop-self
neighbor 10.1.2.1 remote-as 1
no auto-summary
BGP on R6
R6#show run | s router bgp
router bgp 100
no synchronization
bgp log-neighbor-changes
neighbor 2.2.2.2 remote-as 100
neighbor 2.2.2.2 update-source Loopback0
neighbor 2.2.2.2 next-hop-self
neighbor 10.1.19.7 remote-as 2
no auto-summary
R2#show ip bgp
BGP table version is 3, local router ID is 2.2.2.2
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
*> 1.1.1.1/32 10.1.2.1 0 0 1 i
*>i7.7.7.7/32 6.6.6.6 0 100 0 2 i
Network Next Hop Metric LocPrf Weight Path
*>i1.1.1.1/32 2.2.2.2 0 100 0 1 i
*> 7.7.7.7/32 10.1.19.7 0 0 2 i
Output from R2 Traceroute
R2#traceroute 7.7.7.7
Type escape sequence to abort.
Tracing the route to 7.7.7.7
1 20.2.3.3 [MPLS: Label 16 Exp 0] 124 msec 108 msec 84 msec
2 20.2.4.4 [MPLS: Label 16 Exp 0] 80 msec 88 msec 112 msec
3 20.2.5.5 [MPLS: Label 16 Exp 0] 72 msec 76 msec 52 msec
4 20.2.6.6 76 msec 120 msec 92 msec
5 * * *
6 * * *
7 * * *
8 * * *
for some reason it wont go throuth any help on this will be appricated
Linke for my topology
Comments
Check you did advertise all the loopbacks in your IGP and that they are MPLS enabled. IF you did this check the router-id for MPLS. It must be the Loopback you are using.
I did not quite understand your design but remember that BGP works mostly on next hop value. Worth to check it!! eBGP will always win over iBGP
Alessio