a crude method of limiting long-prefix propagation

[Ben Black]

Yakov,
	Can you provide a reference for this?  I am rather far along in
my definition of the PROP_PATH and its behavior, but any input like this
is welcome.


Ben

On Fri, Mar 23, 2001 at 10:01:45AM -0800, Yakov Rekhter wrote:
> Joe,
> 
> > On Thu, Mar 22, 2001 at 11:37:44PM -0700, mccreary at pch.net wrote:
> > > With a small change in semantics, it seems like this scheme is sufficient t
> o
> > > support restricted announcement of any route to an explicit set of ASes.  J
> ust
> > > change the meaning of EPPC_ALOW:ASN a little so it indicates `advertiseable
> > > to', so that a participating AS will only advertise this route to a peer if
> > > the proper community attribute appears in the route.
> > 
> > Yup. I already piped the -00 draft through asp and derived something
> > very similar. The following draft does not contain the one-AS-hop
> > limitation, and includes sample config for IOS and JUNOS.
> > 
> > http://www.automagic.org/~jabley/draft-jabley-edge-policy-propagation-control
> -01.txt
> > 
> > As suggested by Curtis, Ben is plugging the basic idea encompassed in
> > this mechanism into a new bgp attribute, as an alternative approach to
> > using community strings.
> 
> When considering a new BGP attribute, I wonder whether we could
> "re-cycle" the DIST_LIST_INCLUDE attribute of IDRP.
> 
> Yakov.