News for hackers. Stuff that matters.

A comment on Is it just me or is networking really hard?. Parent comment

Re:Is it just me or is networking really hard? by jwatte on Sunday September 13, 2015 @07:45PM (#10213150)
Multicast at global scales is fundamentally broken. Every router on the internet would have to know about every potential peer wanting to join a multicast group.
[ Parent | on HN ]
Re:Is it just me or is networking really hard? by fanf2 on Monday September 14, 2015 @05:35PM (#10217659)
Wide-area multicast is usually one-way, which is much easier: each router only needs to know each which streams are to be fanned out to which of its nearest downstream neighbours, and where to forward upstream multicast group join requests.
[ Parent | on HN ]