BGP SUMMARY vs SUPPRESS

From: shiran guez (shiranp3@gmail.com)
Date: Thu Oct 11 2007 - 13:17:09 ART


*Hi*
**
*I would like to know if there is a difference between the following
scenario:*
**

aggregate-address 10.0.0.0 255.252.0.0 summary-only
nei x.x.x.x remot-x
nei x.x.x.x unsuppress-map 10_UNSUP

ip prefix-list OPEN_10 permit 10.0.0.0/16
 ip prefix-list OPEN_10 permit 10.1.0.0/16
 ip prefix-list OPEN_10 permit 10.2.0.0/16
 ip prefix-list OPEN_10 permit 10.3.0.0/16

Route-map 10_UNSUP
match ip address prefix OPEN_10

*to the following scenario:*

aggregate-address 10.0.0.0 255.252.0.0 suppress-map 10_UNSUP
nei x.x.x.x remot x
nei x.x.x.x unsuppress-map 10_UNSUP

ip prefix-list OPEN_10 permit 10.0.0.0/16
 ip prefix-list OPEN_10 permit 10.1.0.0/16
 ip prefix-list OPEN_10 permit 10.2.0.0/16
 ip prefix-list OPEN_10 permit 10.3.0.0/16

Route-map 10_UNSUP
match ip address prefix OPEN_10

as when I tested it it look like it is giving the exact same result but with
the summary-only a little bit less confusing as far as configuration.

-- 
Shiran Guez
MCSE CCNP NCE1
http://cciep3.blogspot.com
http://www.linkedin.com/in/cciep3


This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:13 ART