Configuring Optional Multicast Routing Features; Configuring Sdr Listener Support; Enabling Sdr Listener Support - Cisco ME 3400 Software Configuration Manual

Chapter 42 Configuring IP Multicast Routing

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.
SDR is a multicast application that listens to a well-known multicast group address and port for Session
Announcement Protocol (SAP) multicast packets from SAP clients, which announce their conference
sessions. These SAP packets contain a session description, the time the session is active, its IP multicast
group addresses, media format, contact person, and other information about the advertised multimedia
session. The information in the SAP packet is displayed in the SDR Session Announcement window.

Enabling sdr Listener Support

By default, the switch does not listen to session directory advertisements.
Beginning in privileged EXEC mode, follow these steps to enable the switch to join the default session
directory group (224.2.127.254) on the interface and listen to session directory advertisements. This
procedure is optional.
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3 no shutdown
Step 4 ip sdr listen
Step 5 end
Step 6 show running-config
Step 7
copy running-config startup-config
To disable sdr support, use the no ip sdr listen interface configuration command.
OL-9639-07
Configuring sdr Listener Support, page 42-43
session and set up
Configuring an IP Multicast Boundary, page 42-44
Purpose
Enter global configuration mode.
Specify the interface to be enabled for sdr, and enter interface
configuration mode.
Enable the port, if necessary. By default, UNIs and ENIs are disabled, and
NNIs are enabled.
Enable sdr listener support.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Configuring Optional Multicast Routing Features
(optional)—for MBONE multimedia conference
(optional)—to control bandwidth utilization.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
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