Multicast Routing Protocols

[object Object],[object Object],[object Object],[object Object],[object Object],Applications with multiple receivers

Multicasting ,[object Object],IP Multicasting refers to the implementation of multicast communication in the Internet Multicast is driven by receivers: Receivers indicate interest in receiving data Unicast Broadcast Multicast

Multicast Groups ,[object Object],[object Object],[object Object],[object Object]

Multicasting over a Packet Network ,[object Object],Multiple copies of the same message is transmitted on the same link

Multicasting over a Packet Network ,[object Object],[object Object]

Semantics of IP Multicast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The IP Protocol Stack ,[object Object],[object Object],Network Interface User Layer IP IP Multicast UDP TCP Socket Layer Stream Sockets Datagram Sockets Multicast Sockets

IP Multicasting ,[object Object],IP Multicast Addressing IP Group Management Multicast Routing

Multicast Addressing ,[object Object],[object Object],[object Object],[object Object]

Types of Multicast addresses ,[object Object],[object Object],[object Object]

Multicast Address Translation ,[object Object],Not all Ethernet cards can filter multicast addresses in hardware - Then: Filtering is done in software by device driver.

IGMP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],IGMP Protocol

IGMP Packet Format ,[object Object],[object Object]

Networks with multiple multicast routers ,[object Object],[object Object],[object Object]

Multicast Routing Protocols ,[object Object]

Multicast Routing protocols ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Objectives ,[object Object],[object Object],[object Object],[object Object]

Multicast routing as a graph problem ,[object Object]

Multicast routing as a graph problem ,[object Object],[object Object],[object Object],[object Object],[object Object]

Multicast routing as a graph problem ,[object Object],[object Object],[object Object],[object Object]

Multicast routing in practice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Multicast Routing table ,[object Object],[object Object],[object Object],I1, I3 I2 G2 * I2, I3 I1 G1 S1 Outgoing interface list Incoming interface (RPF interface) Multicast group Source IP address

Multicast routing in practice ,[object Object],[object Object],[object Object],[object Object],[object Object]

Reverse Path Forwarding (RPF) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Building a source-based tree ,[object Object],[object Object]

Building a source-based tree ,[object Object],[object Object],[object Object]

Building a source-based tree ,[object Object],[object Object],[object Object],[object Object]

Pruning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Alternative method for building a source-based tree ,[object Object],[object Object],[object Object],[object Object],[object Object]

Building a core-based tree ,[object Object],[object Object],[object Object]

Building a core-based tree ,[object Object],[object Object]

Multicast routing protocols in the Internet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PIM Messages (PIM version 2) ,[object Object],[object Object],[object Object], 8 Candidate-RP-Advertisement  7 Graft-Ack  6 Graft   5 Assert  4 Bootstrap   3 Join/Prune  2 Register-Stop  1 Register   0 Hello PIM-SM PIM-DM Type PIM-DM messages

PIM-DM: PIM Dense Mode ,[object Object],[object Object],[object Object]

PIM-SM: PIM Sparse Mode ,[object Object],[object Object],[object Object]

PIM-SM: PIM Sparse Mode ,[object Object]

PIM-SM: Data transmission ,[object Object],[object Object],[object Object],[object Object]

PIM-SM: Data transmission ,[object Object]

PIM-SM: Switching to source-based tree ,[object Object],[object Object],[object Object]

PIM-SM: Switching to source-based tree ,[object Object],[object Object]

Multicast Routing Protocols

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Multicast Routing Protocols