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 184.108.40.206/24
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.