Verilink Net Engine (3150-30626-001) Product Manual Manual do Utilizador Página 200

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NetEngine IAD User Guide
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 182)
Configuring PIM—Dense Mode by Port (page 183)
Adding and Changing the Multicast Route Source (page 185)
Displaying IGMP Groups (page 186)
Displaying the IGMP Querier (page 186)
Displaying the Multicast Routing Table (page 186)
Displaying PIM Neighbor (page 187)
10. Multicast
Configuration
NOTE
When the IAD prompts you for input, the current value is
displayed in parentheses. To conveniently accept the current
value, just press Enter.
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