Command Line Interface
1124 1553-KDU 137 365 Uen D 2006-06-16
7.27.18 ip pim dense-mode
This command enables PIM-DM on the specified interface. Use the no form to
disable PIM-DM on this interface.
Syntax
[no] ip pim dense-mode
Default Setting
Disabled
Command Mode
Interface Configuration (VLAN)
Command Usage
• To fully enable PIM-DM, multicast routing needs to be enabled globally
for the router with the ip multicast-routing command
(page 1104), PIM-DM enabled globally for the router with the router
pim dense-mode command (page 1123), and also PIM-DM enabled
for each interface that will participate in multicast routing with the ip
pim dense-mode command.
• If PIM is enabled on an interface, IGMP should also enabled on that
interface.
• Dense-mode interfaces are subject to multicast flooding by default, and
are only removed from the multicast routing table when the router
determines that there are no group members or downstream routers, or
when a prune message is received from a downstream router.
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