Communities BCP [was: RE: BGP Path Filtering]
Charles H. Gucker
cgucker at cv.net
Fri May 16 23:15:47 UTC 2003
On Fri, May 16, 2003 at 04:45:11PM -0500, Ejay Hire wrote:
> The config bits that follow are from memory, so no guarantees of syntax
> accuracy. If anyone knows how I can have an Item matched multiple times
> in the route-map I would appreciate a reply. I.e. if a customer wanted
> to send xxxx:100 and xxxx:1, currently I would match on the xxxx:1 and
> the localpref change would not be applied. Thanks in advance to whoever
> comes up with this gem.
Actually you can accomplish this by using additive (but you would have to
make sure all "bad" communities are caught and the values reset to a valid 'standard'
route prior). This would allow you to know anything past this point is a valid,
acceptable community which would leave you with checking null0, then local pref's
and setting it properly..
I can supply a config, if folks are interested.
Thanks,
charles
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