Announce less specific prefix in routeserver environment for upstream purpose

[Arnold Nipper]

on 17.12.2011 10:04 Ondrej Zajicek wrote:
> On Fri, Dec 16, 2011 at 11:39:38PM +0100, Arnold Nipper wrote:
> 
>>> I see a simpler idea - just use a different 'local as' (perhaps
>>> some private ASN) on the BGP config on RS directed to GW (i.e.
>>> just on that one connection). In that case the session would be
>>> handled as eBGP, like all other sessions. Because the session
>>> would be also configured with 'rs client' on RS, the configured
>>> (private) ASN would not appear anywhere, it does not matter.
>>> 
>> 
>> Well, is that really simpler?
> 
> It depends. This variant does not need any special handling in
> filters.
> 

Right ... but you have to take care for this in the peer section anyway.
*And* you have to treat the RS on the GW differently as well. I guess it
much depends on your philosophy. The best solution perhaps would be to
use a different ASN for the GW.



Arnold
-- 
Arnold Nipper / nIPper consulting, Sandhausen, Germany
email: arnold at nipper.de      phone: +49 6224 5593407 2
mobile: +49 152 53717690     fax:   +49 6224 5593407 9

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