BGP Route Reflector with Synchronization ON

Hey...
i have this scenario where R5-----R6-----R7 and R7 is connected to
R5 for redundancy.! now. I made R5 the Route Reflector. and i have
OSPF running with all the loopbacks advertised in OSPF. Now without
turning ON Synchronization this is the output
R6#sh ip bgp
r>i5.5.0.0/24 5.5.0.5 0 100 0 ?
r>i5.5.1.0/24 5.5.0.5 0 100 0 ?
r>i5.5.2.0/24 5.5.0.5 0 100 0 ?
r>i5.5.3.0/24 5.5.0.5 0 100 0 ?
r>i5.5.4.0/24 5.5.0.5 0 100 0 ?
r>i7.7.0.0/24 7.7.0.7 0 100 0 ?
r>i7.7.1.0/24 7.7.0.7 0 100 0 ?
r>i7.7.2.0/24 7.7.0.7 0 100 0 ?
r>i7.7.3.0/24 7.7.0.7 0 100 0 ?
r>i7.7.4.0/24 7.7.0.7 0 100 0 ?

where as in Switch ON Synchronization @R6

r>i5.5.0.0/24 5.5.0.5 0 100 0 ?
r>i5.5.1.0/24 5.5.0.5 0 100 0 ?
r>i5.5.2.0/24 5.5.0.5 0 100 0 ?
r>i5.5.3.0/24 5.5.0.5 0 100 0 ?
r>i5.5.4.0/24 5.5.0.5 0 100 0 ?
*> 6.6.0.0/24 0.0.0.0 0 32768 ?
*> 6.6.1.0/24 0.0.0.0 0 32768 ?
*> 6.6.2.0/24 0.0.0.0 0 32768 ?
*> 6.6.3.0/24 0.0.0.0 0 32768 ?
*> 6.6.4.0/24 0.0.0.0 0 32768 ?
* i7.7.0.0/24 7.7.0.7 0 100 0 ?
* i7.7.1.0/24 7.7.0.7 0 100 0 ?
* i7.7.2.0/24 7.7.0.7 0 100 0 ?
* i7.7.3.0/24 7.7.0.7 0 100 0 ?
* i7.7.4.0/24 7.7.0.7 0 100 0 ?

@R7 SYN is OFF
r>i5.5.0.0/24 5.5.0.5 0 100 0 ?
r>i5.5.1.0/24 5.5.0.5 0 100 0 ?
r>i5.5.2.0/24 5.5.0.5 0 100 0 ?
r>i5.5.3.0/24 5.5.0.5 0 100 0 ?
r>i5.5.4.0/24 5.5.0.5 0 100 0 ?
r>i6.6.0.0/24 6.6.0.6 0 100 0 ?
r>i6.6.1.0/24 6.6.0.6 0 100 0 ?
r>i6.6.2.0/24 6.6.0.6 0 100 0 ?
r>i6.6.3.0/24 6.6.0.6 0 100 0 ?
r>i6.6.4.0/24 6.6.0.6 0 100 0 ?
*> 7.7.0.0/24 0.0.0.0 0 32768 ?
*> 7.7.1.0/24 0.0.0.0 0 32768 ?
*> 7.7.2.0/24 0.0.0.0 0 32768 ?
*> 7.7.3.0/24 0.0.0.0 0 32768 ?

I turn OFF SYN at R6 and everything has a RIB failure.. becoz OSPF is
running advertising all the loopbacks.!

Is there any special thing to be noted while using SYNC with Route Reflectors.!

Generally SYNC is OFF.. Just out of curiosity.!

Thanking You

Yours Sincerely

Divin Mathew John
divinjohn_at_gmail.com
divin_at_dide3d.com
http://www.dide3d.com
+91 9945430983
+91 9846697191
+974 5008916
PGP PUBLIC KEY BLOCK @ http://www.dide3d.com/divin_Public_PGP_key.txt
Sent from Bangalore, KA, India

Blogs and organic groups at http://www.ccie.net
Received on Wed May 13 2009 - 22:46:36 ART