csnotes/311/lec/lec19.md
2019-09-24 11:34:35 -07:00

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# lec19
## Broadcast Routing
We allow multiple identical streams to follow a _trunk_ structure wherein we only branch to a client when needed.
This keeps bandwidth usage down on a network's links.
## Multicast Problem
Take the concept from the previous section, where we have a tree structure spread across a network.
Our goal here would be to create some tree where all the _members_ for the data share the same tree.
_Also multicast groups get their own subnet class_.
This is to distinguish regular traffic from this multicast traffic[224.0.0.0].