EECS 122, Lecture 14
Wide Area Multicast Delivery
Source-Based (“shortest path”) Trees
Reverse Path Broadcasting
Components
Reverse Path Forwarding
Implications of RPF Algorithm
RPB Operation
Observations
Extending RPB
Truncated RPB
Reverse Path Multicasting (RPM)
Pruning the Distribution Tree
Router Prune Processing
Reacting to Change
How Long to Age Prunes?
Grafts
Scaling Issues
Alternative Approaches
Shared Trees
Limitations
Perspective
Routing Protocols (briefly)
Dense Mode Protocols
Sparse Mode Protocols
Protocol Characteristics
Multicast Scope Control
TTL Scope Control
Expanding Ring Search
Limitation of Expanding Ring Search
Administrative Scoping
Supporting Admin Scoping
Email: kfall@cs.berkeley.edu
Home Page: http://www-inst.eecs.berkeley.edu/~ee122