Re: [RRG] Are host-stack modifications allowed or disallowed ?

["William Herrin" <bill@herrin.us>]

On Wed, Mar 5, 2008 at 8:07 PM, Tony Li <tony.li@tony.li> wrote:
>  |>  [...] Why now?  What's changed?
>  |BGP communities
>
>  That's part of the existing architecture, not anything new.

Tony,

Back in '98 I don't recall my upstreams providing a list of
communities I could assign to my announced routes which would alter
the way in which they advertised them to their upstreams and peers.
That offering seems somewhat common today.


>  |CDNs (e.g. Akamai)
>
>  Interesting, but I'm missing on how that's relevant.

At least one of us is being obtuse. I won't claim it isn't me.

Paraphrasing your question, you asked: What has changed since we
allowed loose source routing to slip away that should cause us now to
be concerned about giving the customer finer grained control over
routing.

The answer is: our customers now pay large amounts of money for
relatively crappy methods of moving packets to their customers in a
"better" way than central servers with generic BGP could. Back when we
allowed loose source routing to die, nobody was spending money on such
a thing.

Regards,
Bill Herrin


-- 
William D. Herrin                  herrin@dirtside.com  bill@herrin.us
3005 Crane Dr.                        Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004

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