pTLA rules for application

[Antonio Querubin]

On Sat, 3 Mar 2001 info@caladan.net wrote:

> RFC2772 states that the applicant must have minimum 3 months:
>
> "Fully maintained, and reliable, BGP4+ peering and connectivity
> between the Applicant's boundary router and the appropriate
> connection point into the 6Bone."
>
> Surely this breaks one of the golden rules of BGP? i.e. that you
> shouldn't advertise a more specific route when a less specific route
> further up is available?

I don't think this is a golden rule of BGP nor of any routing protocol.
It might be a peering agreement rule but even so your upstreams can always
apply filters if they don't want to hear (or propagate) your more specific
advertisements.

> In fact BGP is only really used if you're multi- homed and you can't
> be multi-homed on the 6bone unless you're already part of the
> backbone.
>
> Seems like a chicken and egg situation?

No not really.  Someone delegates a pNLA or pSLA to you out of their
address space initially.  You peer with them.  They aggregate your
announcement into theirs.  You get the rest of your 6Bone house in order
(meet other RFC 2772 requirements) and wait 3 months.  Then apply for your
own pTLA.