Re: Multicast Internet Route table.

[Jeff Tantsura <jeff.tantsura () ericsson com>]

It is not the network devices per se, it is additional configuration,
security, MSDP peering, etc, i.e. OPEX

Business justification for such effort is not obvious, (most of multicast
deployments I have done in my previous life were because I loved the
technology, not because of business needs :))

Cheers,
Jeff




-----Original Message-----
From: Octavio Alvarez <alvarezp () alvarezp ods org>
Date: Tuesday, September 2, 2014 at 8:43 AM
To: "nanog () nanog org" <nanog () nanog org>
Subject: Re: Multicast Internet Route table.

> On 09/02/2014 05:46 AM, John Kristoff wrote:
> > On Tue, 2 Sep 2014 04:47:37 +0000
> > "S, Somasundaram (Somasundaram)" <somasundaram.s () alcatel-lucent com>
> > wrote:
> >
> > > 1: Does all the ISP's provide Multicast Routing by
> > > default?
> >
> > No not all and even those that do often do not do so on the same gear,
> > links and peers as their unicast forwarding.
>
> Why would that be, are network devices not able to support multicast?
>
> I have never used interdomain multicast but I imagine the global
> m-routing table would quickly become large.