Deleting all extended communities

Alexander Shikoff minotaur at crete.org.ua
Mon Nov 21 10:31:06 CET 2011


Hello!

On Sun, Nov 20, 2011 at 12:38:23AM +0100, Ondrej Zajicek wrote:
> On Sat, Nov 19, 2011 at 08:16:44PM +0100, Ondrej Filip wrote:
> > > BTW, why anyone wants to delete all (extended) communities?
> > 
> > For example at route server - you may want to delete 'signaling'. :-)
> 
> It makes sense to remove communities used for signaling to the
> route server, but i don't see why remove all communities.
> 
> I guess that other communities may be used to communicate arbitrary info
> of unknown semantics between (not necessary adjacent) ASes and it seems
> rude to just strip that. Or not?
You're right. But some operators deliberately break RFCs and strip
communities and ext. communities. It depends on their security policies
and considerations (e.g. my downstream shall not manage its traffic
with my upstreams' communities).

-- 
MINO-RIPE



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