[j-nsp] BGP Communities

[Richard A Steenbergen]

On Wed, May 05, 2010 at 04:24:04PM +0100, Alex wrote:
> Hello there,
> Below regex works too:
> 
> community inbound-xxxx members "(11666:2000)|(11666:2002)"

The downside to this is you can't add communities using the same named
definition, since regexp can only be used to match. If you have two
seperate non-regexp names, you could do "community add blah" as well as
"community from blah" using the same blah.

Of course in a real/complex network where you're encoding more than a
single piece of data (relationship type), you probably want to have two
versions. For example you might have a tag_customer 11666:4123 where the
initial 4 == customer and the other data == continent, region, or pop
codes, and then have a match_customer "^11666:4...$" for matching all
customer routes regardless of location tags. I highly recommend using
distinct names like tag_ and match_ to keep the two seperate, it will
make life much easier in the future. :)

-- 
Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)