on 23.12.2011 01:08 robert jakub wrote: > On Dec 22, 2011, at 1:56 PM, Ondrej Zajicek wrote: > >>> The idea of a route server is that it "... reduces modifications >>> to advertised route attributes to be transparent (for example >>> does not prepend its AS number to AS PATH attribute and keeps MED >>> attribute)." >>> >>> However in case that there is a BGP speaker (gateway GW ) which >>> is in the same ASN as the RS it is at least necessary to add the >>> own ASN when announcing prefixes originating in the ASN. >>> >>> >>> Hence I would like to propose to modify >>> >>> do not prepend own AS number >>> >>> to >>> >>> do not prepend owwn AS number except for prefixes learnt from >>> iBGP >>> >>> Does that make sense? >> >> Yes, it does make sense to me, because it is consistent with the >> current behavior on local (i.e. non-BGP) routes exported to BGP RS >> session. >> >> Note that there is a draft on RS behavior, which does not mention >> this: >> http://tools.ietf.org/html/draft-jasinska-ix-bgp-route-server-03 > > but can it be optional, not required (eg: with some command to revert > to old behavior) >
I would propose to do it the other way round if the proposed behaviour would be implemented. I.e. make the old behaviour an option. Best regards, Arnold -- Arnold Nipper / nIPper consulting, Sandhausen, Germany email: [email protected] phone: +49 6224 5593407 2 mobile: +49 152 53717690 fax: +49 6224 5593407 9
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