45-18
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-13270-06
Chapter 45 Configuring IP Multicast Routing
Configuring IP Multicast Routing
Configuring SSM
Beginning in privileged EXEC mode, follow these steps to configure SSM:
Monitoring SSM
Beginning in privileged EXEC mode, follow these steps to monitor SSM.
Configuring Source Specific Multicast Mapping
The Source Specific Multicast (SSM) mapping feature supports SSM transition when supporting SSM
on the end system is impossible or unwanted due to administrative or technical reasons. You can use
SSM mapping to leverage SSM for video delivery to legacy STBs that do not support IGMPv3 or for
applications that do not use the IGMPv3 host stack.
This section covers these topics:
•
Configuration Guidelines, page 45-19
•
SSM Mapping Overview, page 45-19
•
Configuring SSM Mapping, page 45-21
•
Monitoring SSM Mapping, page 45-23
Command
Purpose
Step 1
ip pim ssm
[
default
|
range
access-list
]
Define the SSM range of IP multicast addresses.
Step 2
interface
type number
Select an interface that is connected to hosts on which
IGMPv3 can be enabled, and enter the interface configuration
mode.
Step 3
ip pim
{
sparse-mode
|
sparse-dense-mode
}
Enable PIM on an interface. You must use either
sparse mode
or
sparse-dense mode
.
Step 4
ip igmp version 3
Enable IGMPv3 on this interface. The default version of
IGMP is set to Version 2.
Step 5
end
Return to privileged EXEC mode.
Step 6
show running-config
Verify your entries.
Step 7
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Router#
show ip igmp groups detail
Display the (S, G) channel subscription through IGMPv3.
Router#
show ip mroute
Display whether a multicast group supports SSM service or
whether a source-specific host report was received.
