BGP Route Map Help

[myounger]

I have 2 different ISP connections, running BGP with a AS #. ISP#1 is a 20Mb link, ISP#2 is 3Mb link. I'm using a prefix-list and route map that weights my network advertisements on both routers. On the 20Mb router my config is as follows:

ip prefix-list ISP1 seq 10 permit 1.1.1.0/24

route-map ISP1 permit 10

match ip address prefix-list ISP1

set community XXXXX:100

When I look at the config, the route map shows:

set community XXXXXXXXXX (where the x's are a string of numbers, no colon - random looking #'s)

Could someone please explain what these numbers are and how they are determined.

THANK YOU!

[Giuseppe Larosa]

Hello Matt,

you need to add a command in global config mode to see communities in the ASN:value notation:

ip bgp-community new-format

see

http://www.cisco.com/en/US/docs/ios/iproute/command/reference/irp_bgp2.html#wp1015944

What you see now is the community seen as a 32 bits unsigned integer.

Add the above command in global config and you will see the community in the same way as you entered it.

Hope to help

Giuseppe