[94116] in North American Network Operators' Group
Re: Network end users to pull down 2 gigabytes a day, continuously?
daemon@ATHENA.MIT.EDU (Petri Helenius)
Wed Jan 10 01:24:30 2007
Date: Wed, 10 Jan 2007 08:23:32 +0200
From: Petri Helenius <pete@he.iki.fi>
To: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
In-Reply-To: <Pine.GSO.4.64.0701092331010.20853@clifden.donelan.com>
Errors-To: owner-nanog@merit.edu
Sean Donelan wrote:
>
> 1/2, 1/3, etc the bandwidth for each additional viewer of the same
> stream?
> The worst case for a multicast stream is the same as the unicast
> stream, but the unicast stream is always the worst case.
However unicast stream does not require state in the intermediate boxes
(unless they are intentionally keeping some) while even single receiver
multicast stream generates state all along the path. This will quite
quickly limit the number of groups feasible.
Pete
