Cisco Cisco IOS Software Release 12.2(33)SRE
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IP Multicast Load Splitting—Equal Cost
Multipath (ECMP) Using S, G and Next Hop
Multipath (ECMP) Using S, G and Next Hop
The IP Multicast Load Splitting—Equal Cost Multipath (ECMP) Using S, G and Next Hop feature
introduces more flexible support for ECMP multicast load splitting by adding support for load splitting
based on source and group address and on source, group, and next-hop address. This feature enables
multicast traffic from devices that send many streams to groups or that broadcast many channels, such
as IPTV servers or MPEG video servers, to be more effectively load split across equal-cost paths. Prior
to the introduction of this feature, the Cisco IOS software only supported ECMP multicast load splitting
based on source address, which restricted multicast traffic sent by a single source to multiple groups
from being load split across equal-cost paths.
introduces more flexible support for ECMP multicast load splitting by adding support for load splitting
based on source and group address and on source, group, and next-hop address. This feature enables
multicast traffic from devices that send many streams to groups or that broadcast many channels, such
as IPTV servers or MPEG video servers, to be more effectively load split across equal-cost paths. Prior
to the introduction of this feature, the Cisco IOS software only supported ECMP multicast load splitting
based on source address, which restricted multicast traffic sent by a single source to multiple groups
from being load split across equal-cost paths.
Configuration Information
Configuration information is included in the “Load Splitting IP Multicast Traffic over ECMP” module
of the Cisco IOS IP Multicast Configuration Guide, Release 12.4T,
of the Cisco IOS IP Multicast Configuration Guide, Release 12.4T,
at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124tcg/timcst_c/mctlsplt.htm
The following sections provide information about this feature:
•
ECMP Multicast Load Splitting Based on Source and Group Address Using the Basic S-G-Hash
Algorithm
Algorithm
•
ECMP Multicast Load Splitting Based on Source, Group, and Next-Hop Address Using the
Next-Hop-Based Hash Algorithm
Next-Hop-Based Hash Algorithm
For a complete list of features included in the “Load Splitting IP Multicast Traffic over ECMP” module,
see the Feature Information Table located toward the end of the module.
see the Feature Information Table located toward the end of the module.
Command Reference Information
Command reference information is included in the Cisco IOS IP Multicast Command Reference,
Release 12SR, at the following URL:
Release 12SR, at the following URL: