Re: valley free routing?

[Matthew Petach <mpetach () netflight com>]

On Wed, Mar 5, 2014 at 12:23 PM, William Herrin <bill () herrin us> wrote:

> Hi folks,
>
> Can anyone tell me about a situation in which a route which was not
> valley free was not a result of a misconfiguration or a bad actor? For
> those who don't recall the terminology, a network path is valley free
> if it crosses exactly zero or one free peering links when traveling
> between the two endpoints.

Isn't that the way most of the IPv6 internet ran
for many years?   ISP A -> 6939 <- ISP B,
settlement-free connections all around?  It's
what established 6939 as the core of the
IPv6 internet.

Matt


> Thanks,
> Bill Herrin
>
>
> --
> William D. Herrin ................ herrin () dirtside com  bill () herrin us
> 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
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