'Mcast group members' presentation slideshows

Chapter 4: Network Layer

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Multicast

Multicast. Sources: Kurose and Ross http://www.hep.ucl.ac.uk/~ytl/multi-cast/addresstranslation_01.html. IP Multicast Addresses. First 4 bits: 1110 (Class D IP address) Range: 224.0.0.0 to 239.255.255.255 Some are reserved. 224.0.0.1 all hosts 224.0.0.2 all multicast routers

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IPv6

IPv6. IPv6. Initial motivation: 32-bit address space soon to be completely allocated. Additional motivation: header format helps speed processing/forwarding header changes to facilitate QoS IPv6 datagram format: fixed-length 40 byte header no fragmentation allowed. IPv6 Header (Cont).

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Lecture 22 Network Layer (Broadcast and Multicast)

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Spanning trees

A connected, undirected graph. Four of the spanning trees of the graph. Spanning trees. Suppose you have a connected undirected graph Connected: every node is reachable from every other node Undirected: edges do not have an associated direction

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Broadcast Routing

duplicate creation/transmission. duplicate. duplicate. in-network duplication. source duplication. R4. R2. R4. R2. R3. R3. R1. R1. Broadcast Routing. Deliver packets from source to all other nodes Source duplication is inefficient:.

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What is Multicast

What is Multicast. Multicast is a Routing Scheme It is the delivery of Information to a group of destinations simultaneously using the most efficient strategy to deliver the messages over each link of the Network. Source-based trees. Multicast Routing: Problem Statement.

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Multicast Routing: Problem Statement

Source-based trees. Multicast Routing: Problem Statement. Goal: find a tree (or trees) connecting routers having local mcast group members tree: not all paths between routers used source-based: different tree from each sender to rcvrs shared-tree: same tree used by all group members.

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