Re: multicast (was Re: Readiness for IPV6)

[Leo Bicknell <bicknell () ufp org>]

In a message written on Tue, Jul 09, 2002 at 09:33:51PM -0400, John Fraizer wrote:
> One of your clients is a mcast sender.  You bill him/her for the traffic
> on their port.
>
> Five of your clients are mcast receivers.  You bill them for the traffic
> on their respective ports.
>
> Worst(best?) case scenerio:  The sender and the 5 receivers are all on
> your network.  You get to bill all six of them.

Works fine.

> If the sender is outside of your network and you have to deliver the mcast
> to 5 different points on your network to your 5 mcast receiver clients,
> you only see the mcast enter your network ONE TIME.  You STILL get to bill
> your 5 mcast receiver clients for the traffic on their ports and you only
> have to INGRESS one copy of it to distribute to your 5 clients.

Works fine.

> So, what is the problem?

You have a multicast sender on your network, and the 5 clients are
on 5 different peer networks.  You just carried 5 times the traffic
on your network, and billed your client once.

-- 
       Leo Bicknell - bicknell () ufp org - CCIE 3440
        PGP keys at http://www.ufp.org/~bicknell/
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