Filter
Top Products
2000-A2-GB20-10 - 163 - February 2004
Multicast (point-to-multipoint) is a communication feature that allows a
source host to send a message to a group of destination hosts.
Multicasting reduces traffic on the local network by sending only one
(multicast) packet out to a higher-bandwidth relay point.
Multicasting differs from broadcasting in that a receiver must join a
multicast group in order to receive group messages. Each multicast group
has its own group address, which is a Class D IP address—224.0.0.0—
239.255.255.255.
This chapter contains the following topics:
Enabling and Disabling Global IP Multicasting (page 164)
Configuring PIM—Dense Mode by Port (page 164)
Adding and Changing the Multicast Route Source (page 166)
Displaying IGMP Groups (page 166)
Displaying the IGMP Querier (page 167)
Displaying the Multicast Routing Table (page 167)
Displaying PIM Neighbor (page 168)
Configur-
ing Multi-
cast
Type M to display the Multicast Configuration menu:
Figure 10–1. Multicast Configuration Menu
0XOWLFDVW
&RQILJXUDWLRQ
NOTE
When the IAD prompts you for input, the current value is
displayed in parentheses. To conveniently accept the current
value, just press Enter.
*******************************************
Multicast Configuration Menu
*******************************************
E. Enable/Disable Global IP Multicasting
P. Config PIM - Dense Mode by Port
S. Add/Change Multicast Route Source
G. Show IGMP Group
Q. Show IGMP Querier
M. Show Multicast Routing Table
N. Show PIM Neighbor