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happylucho
Beginner

iBGP and eBGP

Hi, I have a topology that mixed eBGP (AS 200 and 65 000) and iBGP (AS300, EIGRP). In AS 300 is 4 routers and 2 of them are ASBR. In these routers I have all routes of AS 200 and 65 000, but in some routers that do not participate in this BGP routes are missing.

What is the best method to converge this scenario?

1 ACCEPTED SOLUTION

Accepted Solutions
xcz504d1114
Enthusiast

If I understand you correctly, you have 4 routers in AS 300, the two ASBR routers (that have an eBGP connection to the other AS's), those two ASBR's are recieving all the routes, but the other two are not learning the routes via iBGP, is that correct?

If so:

1) All iBGP neighbors must be fully meshed

2) You must have a bgp router-id configured

3) You should peer to a loop back (if you don't it will give you an error)

4) Disable synchronization

HTH,

Craig

View solution in original post

2 REPLIES 2
xcz504d1114
Enthusiast

If I understand you correctly, you have 4 routers in AS 300, the two ASBR routers (that have an eBGP connection to the other AS's), those two ASBR's are recieving all the routes, but the other two are not learning the routes via iBGP, is that correct?

If so:

1) All iBGP neighbors must be fully meshed

2) You must have a bgp router-id configured

3) You should peer to a loop back (if you don't it will give you an error)

4) Disable synchronization

HTH,

Craig

View solution in original post

Thanks Craig.

I've fully meshed iBGP in AS200 and work fine!!

But my peers are no to a loopback interface and no receive any error... syncronization was disabled by default..

Gracias.

Saludos

Luis