JetStream  52-Port Gigabit Stackable L3 Managed Switch  CLI Guide 
 
Chapter 42  PIM Commands 
The Protocol Independent Multicast (PIM) protocol is multicast routing protocol which uses 
unicast routing information to perform the multicast forwarding function in the three-layer 
network. PIM can operate in dense mode or sparse mode. 
42.1  ip multicast-routing 
Description 
The  ip multicast-routing  command is used to enable ip multicast routing 
function. To disable the ip multicast routing function and delete all the 
multicast routing entries, please use no ip multicast-routing command. 
Syntax 
ip multicast-routing 
no ip multicast-routing 
Command Mode 
Global Configuration Mode 
Example 
Enable the IP multicast routing function globally: 
T3700G-52TQ(config)#ip multicast-routing 
42.2  ip pim (global) 
Description 
The ip pim command is used to configure PIM mode globally. To disable the 
PIM DM or SM mode, please use no ip pim command. 
Syntax 
ip pim {dense-mode | sparse-mode} 
no ip pim [dense-mode | sparse-mode] 
Parameter 
dense-mode —— Enable PIM with dense mode. 
sparse-mode —— Enable PIM with sparse mode. 
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