BGP RIP Failure, it is normal or not?

[samsam_wang]

R1 e0-----e0 R2

R1

loop0 192.168.10.1/24

e0 192.168.1.1/24

R2

e0 192.168.1.2/24

Run RIP between R1 and R2, R2 can get the route 192.168.10.0/24 via RIP, the default AD is 120.

run iBGP between R1 and R2, R1 advitise loop0 into BGP, and R2 got BGP route 192.168.10.0 like

r>i 192.168.10.0/24

there is a 'r' because the AD of RIP(120) is less then the AD of IBGP(200), it is normal or not?

after I changed AD of RIP on R2 to 205, everything is ok, it is necessary?

R1 and R2 are 2500, IOS is c2500-is-l.122-15.T12.bin,

Thanks

[Harold Ritter]

This is indeed normal. This just means that BGP couldn't installed the route in the RIB cause another route is already installed with a better admin distance. This wouldn't prevent the route to be advertised to eBGP peers.

Hope this helps,

[samsam_wang]

Thanks a lot.

I want to ask one more question.

topology like

ospf area 0--R1---area 1---R2---area 2---R3

.......................R1--non-ospf--R2

Between R1 and R2, there are two links. one run OSPF, another run RIP or EIGRP or ISIS, R1 and R2 build virtual-link, if the link of area 1 broken, how R3 reach area 0 without static route?

Thanks

[Harold Ritter]

The virtual link will not stay up R1 and R2 don't see each other via area 1.

Hope this helps.