Cisco Catalyst 3850 series User Manual

PurposeCommand or Action
The first sample shows how to configure an interface on the device
to join the specified group.
Do one of the following:
Step 4
•
ip igmp join-group group-address
•
With this method, the device accepts the multicast packets
in addition to forwarding them. Accepting the multicast
packets prevents the device from fast switching.
•
ip igmp static-group {* | group-address
[source source-address]}
Example:
Device(config-if)# ip igmp join-group
225.2.2.2
The second example shows how to configure static group
membership entries on an interface.
•
With this method, the device does not accept the packets
itself, but only forwards them. Hence, this method allows
Example:
Device(config-if)# ip igmp static-group
225.2.2.2
fast switching. The outgoing interface appears in the IGMP
cache, but the device itself is not a member, as evidenced
by lack of an “L” (local) flag in the multicast route entry.
Returns to privileged EXEC mode.end
Example:
Device(config-if)# end
Step 5
(Optional) Displays multicast-related information about an
interface.
show ip igmp interface [interface-type
interface-number]
Example:
Device# show ip igmp interface
Step 6
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Device# copy running-config startup-config
Step 7
Verifies your entries.show running-config
Example:
Device# show running-config
Step 8
Controlling Access to an SSM Network Using IGMP Extended Access Lists
Perform this optional task to control access to an SSM network by using an IGMP extended access list that
filters SSM traffic based on source address, group address, or both.
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
OL-32598-01 67
Configuring IGMP
Controlling Access to an SSM Network Using IGMP Extended Access Lists

Cisco Catalyst 3850 series Specifications

General

Brand	Cisco
Model	Catalyst 3850 series
Category	Switch
Language	English