Configuring The Switch As A Statically Connected Member; Configuring Optional Multicast Routing Features; Configuring Sdr Listener Support - Cisco 3845 - Security Bundle Router Software Manual

Chapter 33 Configuring IP Multicast Routing

Configuring the Switch as a Statically Connected Member

Sometimes there is either no group member on a network segment or a host cannot report its group
membership by using IGMP. However, you might want multicast traffic to go to that network segment.
These are ways to pull multicast traffic down to a network segment:
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Beginning in privileged EXEC mode, follow these steps to configure the switch itself to be a statically
connected member of a group (and enable fast switching). This procedure is optional.
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ip igmp static-group group-address
Step 4
end
Step 5
show ip igmp interface [interface-id]
Step 6
copy running-config startup-config
To remove the switch as a member of the group, use the no ip igmp static-group group-address interface
configuration command.

Configuring Optional Multicast Routing Features

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Configuring sdr Listener Support

The MBONE is the small subset of Internet routers and hosts that are interconnected and capable of
forwarding IP multicast traffic. Other multimedia content is often broadcast over the MBONE. Before
you can join a multimedia session, you need to know what multicast group address and port are being
used for the session, when the session is going to be active, and what sort of applications (audio, video,
and so forth) are required on your workstation. The MBONE Session Directory Version 2 (sdr) tool
provides this information. This freeware application can be downloaded from several sites on the World
Wide Web, one of which is http://www.video.ja.net/mice/index.html.
OL-23400-01
Use the ip igmp join-group interface configuration command. With this method, the switch accepts
the multicast packets in addition to forwarding them. Accepting the multicast packets prevents the
switch from fast switching.
Use the ip igmp static-group interface configuration command. With this method, the switch does
not accept the packets itself, but only forwards them. This method enables fast switching. The
outgoing interface appears in the IGMP cache, but the switch itself is not a member, as evidenced
by lack of an L (local) flag in the multicast route entry.
Configuring sdr Listener Support, page 33-41
session and set up
Configuring an IP Multicast Boundary, page 33-43
Purpose
Enter global configuration mode.
Specify the interface to be configured, and enter interface configuration
mode.
Configure the switch as a statically connected member of a group.
By default, this feature is disabled.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
(optional)—for MBONE multimedia conference
(optional)—to control bandwidth utilization.
Cisco ME 3800X and 3600X Switch Software Configuration Guide
Configuring Optional Multicast Routing Features
33-41