[38673] in North American Network Operators' Group
RE: Multicast Traffic on Backbones
daemon@ATHENA.MIT.EDU (Michael Whisenant)
Sun Jun 10 12:24:13 2001
Date: Sun, 10 Jun 2001 07:03:55 -0500 (CDT)
From: Michael Whisenant <mwhisen@foreigner.whisenant.net>
To: <nanog@merit.edu>
In-Reply-To: <E1593qa-0002VC-00@foreigner.whisenant.net>
Message-ID: <Pine.LNX.4.33.0106100701560.9619-100000@foreigner.whisenant.net>
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Most multicast backbone providers have links that show that they mBGP
with peers and offer MSDP as well. This allows for the customer on one
providers network to access a source on another providers network. Of course
there are issues with the 5 bit overlap in multicast address space, but it does
work. There are commercial companies that have registered/reserved particular
addresses for their applications as well. While I think that today the amount
of multicast traffic is low, it will continue to increase.
On Sat, 9 Jun 2001, Deepak Jain wrote:
>
> When multicast enabling a network, am I wrong in assuming that the routers
> will only multicast to their direct, end-user connections and peers (like an
> access router will only offer streams to its direct connections)? I am
> trying to figure out what advantages multicast-enabling a backbone has when
> the majority of customers are not multicast-peers of their upstream routers.
>
