Re: RIS [Re: AS41961 not seen in many networks]

[Jeroen Massar <jeroen () unfix org>]

Randy Bush wrote:
> > Well, the undocumented fact is that RIS does not accept multi-hop BGP 
> > peerings, which may somewhat limit its coverage.
>
> this is a good thing.  as multi-hop bgp is very fragile, measurements
> go borkville just when you want them the most.

While that is true, it does help in the cases when there is connectivity
between the two BGP speakers in question. For instance GRH would not
have been possible if it was not for multihop-bgp. Indeed when
connectivity breaks, it is useless, but most of the time it works and
then it is great to have.

A better requirement for RIS could be that it would be advised to be
present at an IX and peer there, otherwise offer the option of
multihop-bgp so that people who are not too-well connected can also
contribute to it. The ones present at the IX's are also the ones which
will cause multihop to break when the IX or they themselves go down, the
remote participants are most likely smaller players thus them going down
and going off the system doesn't really hurt a lot, except them.

Greets,
 Jeroen

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