nanog mailing list archives
Re: RFC 5771 - Global Multicast Addresses
From: Niels Bakker <niels=nanog () bakker net>
Date: Mon, 5 Aug 2019 17:44:48 +0200
* brandon () brandonsjames com (Brandon James) [Mon 05 Aug 2019, 17:17 CEST]:
As a young network engineer (no historic perspective) and only SMB and enterprise experience. It seems like the intention was to allow these to be publicly routed, but it would be a nightmare to implement so it never was.
Multicast was never popular with operators because it had the potential to create a lot of state across every router in a network, as well as lead to uncontrolled explosions of traffic, especially in network designs that relied on virtual circuits for significant portions of last-mile infrastructure.
Some of these problems were addressed with SSM, IP DSLAMs, and having consumer connection speeds be significantly faster than what a Full HD video stream requires, but given that major network providers already don't have the in-house clue to implement IPv6, multicast will be very low priority.
-- Niels. --"It's amazing what people will do to get their name on the internet, which is odd, because all you really need is a Blogspot account."
-- roy edroso, alicublog.blogspot.com
Current thread:
- RFC 5771 - Global Multicast Addresses Brandon James (Aug 05)
- Re: RFC 5771 - Global Multicast Addresses Niels Bakker (Aug 05)