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COMMON MULTICAST
CONFIGURATION
Introduction to
Common Multicast
Configuration
The multicast common configuration is for both the multicast group management
protocol and the multicast routing protocol. The configuration includes enabling IP
multicast routing, displaying multicast routing table and multicast forwarding
table, etc.
Common Multicast
Configuration
Common multicast configuration includes:
■ Enabling multicast routing
■ Configuring multicast route limit
■ Clearing MFC (Multicast Forwarding Cache) forwarding entries or its statistic
information
■ Configuring managed multicast
■ Clearing route entries from the kernel multicast routing table
■ Configuring broadcast/multicast suppression
Enabling Multicast
Routing
Enable multicast routing first before enabling multicast routing protocol.
Perform the following configuration in system view.
By default, multicast routing is disabled.
c
CAUTION: Multicast routing must be enabled before other multicast
configurations can take effect.
Configuring Multicast
Routing Table Size Limit
Because too many multicast routing table entries may exhaust the router memory,
you need to limit the size of the multicast routing table.
Tab le 423 Enable multicast routing
Operation Command
Enable multicast routing multicast routing-enable
Disable multicast routing undo multicast routing-enable
Tab le 424 Configure multicast routing table size limit
Operation Command Remarks
Enter system view system-view -
Configure multicast routing
table size limit
multicast route-limit limit
By default, the maximum
multicast routing table entries
is 512
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