Multi-casting is the method by which packets are sent to a 'host-group'. This group may consist of zero or more hosts identified by a single IP address. Due to the transmission methods of IP routing for a group of hosts, it is not guaranteed that every member in the group will recieve intact datagrams. As such delivery for multicast destinations is known as 'best-effort' reliability.
IP Multicasting is therefore a bandwidth conserving technology that reduces traffic by simultaneously delivering a single stream of information to thousands of recipients. It delivers to multiple receivers without adding any additional burden on the source oor the receivers whilst using the least network bandwidth. Multicast packets are replicated in the network by routers.
Contents
| Background | As it says... Here. |
| IP Extension | How to implement IP Multicast... Here. |
| Address Translation | How Multicasting internet addresses map over layer 2 and 3. Here. |
| IGMP | The Internet Group Membership protocol to join/leave multicast groups. Here. |
| Spanning Trees | How to deliver the multicast over the network. Here. |
| Reliable Multicast | Reliable multicast delivery documents and stuff. Here. |
Links
RFC
1112 - Host Extensions for IP Multicasting, Deering, August 1989
RFC
2236 - Internet Group Management Protocol, Version 2, Fenner, November
1997
MBone: Multicasting Tomorrow's Internet - A book about the multicasting backbone and the future of multimedia on the Internet, Copyright 1996, 1998 by Kevin Savetz, Neil Randall, and Yves Lepage.
Multicasting - A Study - Stephen Nightingale National Institute of Standards and Technology
RFC 3048, Reliable
Multicast Transport Building Blocks for One-to-Many Bulk-Data Transfer.
B. Whetten, L. Vicisano, R. Kermode, M. Handley, S. Floyd, M. Luby. January
2001.
RFC 2715, Interoperability
Rules for Multicast Routing Protocols. D. Thaler. October 1999.
RFC 2710, Multicast Listener Discovery (MLD) for IPv6. S. Deering, W. Fenner,
B. Haberman. October 1999. ftp://ftp.isi.edu/in-notes/rfc2710.txt
RFC 2674, Definitions
of Managed Objects for Bridges with Traffic Classes, Multicast Filtering
and Virtual LAN Extensions. E. Bell, A. Smith, P. Langille, A. Rijhsinghani,
K. McCloghrie. August 1999.
RFC 2627, Key Management
for Multicast: Issues and Architectures. D. Wallner, E. Harder, R. Agee.
June 1999.
RFC 2588, IP Multicast and Firewalls. R. Finlayson. May 1999.
RFC 2627, Key Management
for Multicast: Issues and Architectures. D. Wallner, E. Harder, R. Agee.
June 1999.
RFC 2588, IP Multicast
and Firewalls. R. Finlayson. May 1999.
RFC 2490, A Simulation
Model for IP Multicast with RSVP. M. Pullen, R. Malghan, L. Lavu, G. Duan,
J. Ma, H. Nah. January 1999.
RFC 2432, Terminology
for IP Multicast Benchmarking. K. Dubray. October 1998.
RFC 2417, Definitions
of Managed Objects for Multicast over UNI 3.0/3.1 based ATM Networks. C.
Chung, M. Greene. September 1998.
RFC 2375, IPv6 Multicast
Address Assignments. R. Hinden, S. Deering. July 1998.
RFC 2365, Administratively
Scoped IP Multicast. D. Meyer. July 1998. (Also BCP0023)
RFC 2362, Protocol
Independent Multicast-Sparse Mode (PIM-SM): Protocol Specification. D. Estrin,
D. Farinacci, A. Helmy, D. Thaler, S. Deering, M. Handley, V. Jacobson,
C. Liu, P. Sharma, L. Wei. June 1998.
RFC 2357, IETF Criteria
for Evaluating Reliable Multicast Transport and Application Protocols. A.
Mankin, A. Romanow, S. Bradner, V. Paxson. June 1998.
RFC 2337, Intra-LIS
IP multicast among routers over ATM using Sparse Mode PIM. D. Farinacci,
D. Meyer, Y. Rekhter. April 1998.
RFC 2201, Core Based
Trees (CBT) Multicast Routing Architecture. A. Ballardie. September 1997.
RFC 2189, Core Based
Trees (CBT version 2) Multicast Routing. A. Ballardie. September 1997.
RFC 2149, Multicast
Server Architectures for MARS-based ATM multicasting. R. Talpade, M. Ammar.
May 1997.
RFC 2102, Multicast
Support for Nimrod : Requirements and Solution Approaches. R. Ramanathan.
February 1997.
RFC 2090, TFTP Multicast
Option. A. Emberson. February 1997.
RFC 2022, Support for
Multicast over UNI 3.0/3.1 based ATM Networks. G. Armitage. November 1996.
RFC 1949, Scalable
Multicast Key Distribution. A. Ballardie. May 1996.
RFC 1768, Host Group Extensions for CLNP Multicasting. D. Marlow. March
1995. ftp://ftp.isi.edu/in-notes/rfc1768.txt
RFC 1584, Multicast
Extensions to OSPF. J. Moy. March 1994.
RFC 1469, IP Multicast
over Token-Ring Local Area Networks. T. Pusateri. June 1993.
RFC 1458, Requirements
for Multicast Protocols. R. Braudes & S. Zabele. May 1993. t
RFC 1301, Multicast
Transport Protocol. S. Armstrong, A. Freier, K. Marzullo. February 1992.
RFC 1075, Distance
Vector Multicast Routing Protocol. D. Waitzman, C. Partridge, S.E. Deering.
Nov-01-1988.
Online test for local multicast capaility
| Thu, 21 February, 2002 13:59 |   |
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