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Welcome to the home page for technical information about IP multicast from the IP Multicast development and development testing groups. Is is targeted for customers that are participating in Cisco Systems multicast deployment activities, early field testing (EFT) or beta testing.
05/12/04 |
Configuration note about Microsoft uPNP group 239.255.255.250 in Config Notes Directory |
01/19/04 |
New Added directories and files for Networkers presentations from 2001-2003 |
09/03 |
UpdatedConfiguration
note: Equal Cost Multipath support for IP Multicast |
8/03 |
New Configuration
note: Configuring
multiple Static Mroutes for IPv4 in Cisco IOS |
3/06/03 | Updated Multicast support for MPLS/VPN (MVPN) section |
6/9/02
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New Configuration note: BSR RP election incompatibility with RFC2362 |
7/6/02
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New Configuration note: IP Multicast, SSM and IP/TV version 3.4 |
3/13/02
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Added information about the Cisco IOS MVPN (Multicast VPN) solution. |
1/10/02
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New application note on IP Multicast Network Management - MIBs and Cisco IOS |
11/13/01 | New configuration note on IGMP timers. |
11/04/01 | New configuration note Understanding and using the "ip pim rp-announce-filter" command, updated Main List of Multicast Commands . |
07/05/01 | Added pointers to protocol Specifications (RFCs, Cisco implemented drafts, other protocols: AutoRP, CGMP, PIMv1) |
06/25/01 | Added several new pointers/files to Application and Configuration Notes, especially: Anycast-RP description and Using ip multicast rate-limit to police ip multicast traffic |
06/18/01 | Added presentation for UDLR to feature section. |
04/09/01 | Posted final PGM spec draft-speakman-pgm-spec-06.txt |
02/27/01 | Moved MPLS TE tunnel / IP Multicast interoperability description into Configuration Note: MPLS Traffic Engineering and IP Multicast Interoperability |
02/27/01 | Retired IP Multicast tagswitching note. See config-notes/historic/tagswitching.txt |
11/29/00 | Configuration Note: IP Multicast Multipath configuration note |
11/13/00 | Updated Feature description / links for features to go into Cisco IOS 12.1(5)T:MSDP-MIB, RGMP, PIM-DM State-Refresh, UDLR Tunnel Enhancements and IGMP Proxy support and SSM with IGMPv3, IGMP v3lite and URD (see Cisco IOS SSM Homepage ).Note: CCO documentation links will become active once 12.1(5)T ships. |
11/13/00 | Added a link to the Interdomain Multicast Solutions Whitepaper for ISP Multicast configuration recommendations / examples. |
11/13/00 | Updated link to IP Multicast Homepage on CCO, - completely overhauled. |
11/13/00 | Added links to the Cisco IOS SSM Homepage for SSM, IGMPv3, IGMP v3lite, URD. |
11/13/00 | Updated IOS-Version/Feature information file Recommended IOS Images |
10/23/00 | Configuration Note: MSDP SA filter recommendations corrected / SSM range added. |
08/11/00 | Added HTML/graphical version of the IP Multicast Quickstart Configuration Guide whitepaper. |
08/11/00 | Added new Whitepaper: Internet Protocol (IP) Multicast Technology Overview. |
08/31/00 | Added two new Application Notes about CGMP Leave Processing and TTL Handling in Dense-Mode |
08/18/00 | Completely new Internal Multicast Training course material added. (Many new topics added.) |
08/17/00 | Added info about MSDP MIB support. |
08/04/00 | Added Multicast Voice over IP (MVoIP) aka 'Hoot & Holler over IP' information. |
08/02/00 | Corrected information about MSDP, put -02 spec up. |
06/23/00 | Added new Whitepaper, A Brief History on Internet Multicast. |
06/19/00 | Linked Networkers 2000 presentations. |
04/10/00 | Updated IOS-Version/Feature information file Recommended IOS Images |
04/10/00 | Posted latest PGM spec draft-speakman-pgm-spec-04.txt |
03/30/00 | Added 12.1 documentation links to features. |
03/30/00 | Updated PGM information (PGM host support introduced in 12.1(1)E) |
03/29/00 | New Feature released: RGMP - RouterPort Group Management Protocol (12.0(10)S/12.1(1)E) |
03/27/00 | Updated MRM links. |
03/27/00 | Tool: MMON, Multicast Management Tool from HP. |
03/27/00 | Configuration Note: Changed BGP/MBGP syntax for newer 12.0T, 12.1 versions of IOS |
03/27/00 | Added Multicast Troubleshooting Guide . |
03/27/00 | Corrected MIB files for 12.0T, 12.0S, 12.1 (MSDP flag added) |
02/22/00 | Added UDPTN feature links. |
01/20/00 | Updated MSDP links and information (drafts, CCO documentation). |
12/10/99 | Configuration Note: MSDP SA filter recommendations |
11/23/99 | Updated Bidir-PIM information. |
11/23/99 | Configuration Note:Tunneling IP Multicast through a PIX Firewall |
See the Change
Log for a complete list of changes.
IOS IP Multicast Documentation |
Internet drafts must be expired or updated after a period of 6 months so force progression of such drafts into an RFC. Early implementations of protocols will necessarily be based on drafts: In the IETF standardisation process, actual working and interoperable implementations are a prerequisite for a protocol to become a standard). When a certain version of IOS supports a protocol at a certain draft stage, the Internet Draft specifying that protocol version will not be available from the IETF pages after 6 months, and the later draft or RFC may not be 100% compatible with the earlier draft or provide additional functionalities. For this reason, ip multicast related internet drafts that were the base for the Cisco IOS implementation of a particular protocol or feature are also kept in the following directory:- http://www.ietf.org/ID.html
- ftp://ftpeng.cisco.com/ipmulticast/drafts
Note: a couple of newer features is not documented in the main IP
Multicast chapter on CCO. See the New IP Multicast features
section below for documentation on those specific features.
Interdomain Multicast Solutions (November 2000, HTML)
This Interworking Solutions Guide is a hands-on description of the Cisco recommended configuration of IP Multicast services in typical ISP networks. It contains the complete Cisco IOS configurations for different simplified ISP networks and describes the solution strategies and effects of the configurations choosen. This is not a theoretical "could-be" paper, but it has been verified by actually setting up the complete configuration in a Cisco End-to-End test lab.
Internet Protocol (IP) Multicast Technology Overview (September 2000, HTML)
This whitepaper explains all the important concepts of IP Multicast: Addressing, IGMP (Version1, Version2), IP Multicast in switching (CGMP, IGMP Snooping), Source & Shared Multicast Distribution Trees, RPF-Checking, Routing Protocols (PIM Sparse-Mode, PIM-Dense-Mode), MBGP, MSDP, Anycast-RP, MADCAP, MZAP and PGM. This whitepaper is meant to give a basic understanding of these concepts without going into the details of actual configuration in Cisco IOS.
To find this or or other books related to IP Multicast, you may want to take a look at our favorite online bookstore, www.fatbrain.com (search for "multicast").
- For documentation relating to individual features, please look into the IP Multicast Features section below.
- Please see the sections on Other IP Multicast information sources below.
IOS Release Information |
IP Multicast features |
Note: References to CCO documentation may not always point to the latest release for which a certain feature is documented. Then again, they may sometimes predate the documentation being placed on CCO and may thus temporarily point to NIL.
Note: The features are listed in alphabetical order.
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Translation Updates, Changed BGP/MBGP syntax for newer 12.0T, 12.1 versions of IOS |
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with CatOS 5.1 in the Catalyst 5000 family and with CatOS 5.3 in the Catalyst 6000 family. |
http://search.ietf.org/internet-drafts/draft-ietf-mboned-mrm-00.txt |
MSDP and anycast RP MSDP SA filter recommendations Participating in Multicast at Multicast Interexchange Points /ipmulticast/drafts/draft-ietf-msdp-spec-02.txt http://search.ietf.org/internet-drafts/draft-ietf-msdp-spec-*.txt The spec-02 draft most closely describes the protocol used in the current MSDP implementation in IOS, which is also what the other implementations actively deployed in the Internet are being based on. Potential changes in the process of standardization are under discussion in the IETF. The latest draft in the IETF is pointed to by the spec-* link above, but differences over the -02 draft have not been implemented vendors yet. When the draft advances in the IETF standardisation track, the IOS implementation will track it. based on draft-ietf-msdp-mib-03.txt. |
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Note: There are currently no applications in IOS that utilize the PGM Host stack in IOS. |
and in CatOS 5.4 for Catalyst 4000/5000/6000 series switches. 12.1(5)T RGMP documentation on CCO. |
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(support for ARP, NHRP, IGMP Proxy, ...) |
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Other IP Multicast information sources |
Support and Contact Information |
SMARTnet is the classic Cisco support offering that (amongst other services) will give you access via telephone/e-mail to the Cisco TAC (Technical Assistance Center - tac@cisco.com). The Cisco TAC is the support organization that will provide fully tracked customer support. Please contact your Cisco sales team if you want to know more about support options.