Load Splitting Of Ip Multicast Traffic - Cisco Catalyst 4500 Series Software Configuration Manual

Configuring IP Multicast Routing
Command or Action
Step 10
Switch# show ip pim rp [mapping] [rp-address]
Step 11
Switch# show ip igmp groups [group-name |
group-address | interface-type
interface-number] [detail]
Step 12
Switch# show ip mroute [group-address |
group-name] [source-address | source-name]
[interface-type interface-number] [summary]
[count] [active kbps]
This example shows how to configure a single-static RP:
Switch> enable
Switch# configure terminal
Switch(config)# ip multicast-routing
Switch(config)# interface ethernet 1
Switch(config-if)# ip pim sparse-mode
Switch(config-if)# exit
Switch(config)# ip pim rp-address 192.168.0.0
Switch(config)# end
Switch# show ip pim rp mapping
Switch# show ip igmp groups
Switch# show ip mroute cbone-audio

Load Splitting of IP Multicast Traffic

Note This feature is only supported on Enterprise Services. It is not supported on IP Base and LAN Base.
If two or more equal-cost paths from a source are available, unicast traffic is load split across those paths.
However, by default, multicast traffic is not load split across multiple equal-cost paths. In general,
multicast traffic flows down from the reverse path forwarding (RPF) neighbor. According to the Protocol
Independent Multicast (PIM) specifications, this neighbor must have the highest IP address if more than
one neighbor has the same metric.
Use the ip multicast multipath command to enable load splitting of IP multicast traffic across multiple
equal-cost paths.
The ip multicast multipath command does not work with bidirectional Protocol Independent Multicast
Note
(PIM).
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
38-22
Purpose
(Optional) Displays RPs known in the network and shows
how the router learned about each RP.
(Optional) Displays the multicast groups having receivers
that are directly connected to the router and that were
learned through IGMP.
A receiver must be active on the network at the time
•
that this command is issued to ensure that receiver
information is present on the resulting display.
(Optional) Displays the contents of the IP multicast routing
(mroute) table.
Chapter 38 Configuring IP Multicast