T3700G-28TQ
 
JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide 
 
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Command Mode 
Interface Configuration Mode 
Example 
Enable PIM dense mode on interface VLAN 2: 
T3700G-28TQ(config)# interface vlan 2 
T3700G-28TQ(config-if)# ip pim dense-mode 
ip pim sg-expiry-timer 
Description 
The ip pim sg-expiry-timer command is used to specify the expiry time for 
routing entries. To restore to the default timer, please use no ip pim 
sg-expiry-timer command. 
Syntax 
ip pim sg-expiry-timer timer 
no pim sg-expiry-timer 
Parameter 
timer —— The expiry time for the routing entries. It ranges from 60 to 65535 
seconds and the default value is 210 seconds. 
Command Mode 
Global Configuration Mode 
Example 
Configure the expiry time for the routing entries as 60s: 
T3700G-28TQ(config)# ip pim sg-expiry-timer 60 
ip pim spt-threshold infinity 
Description 
The ip pim spt-threshold infinity command is used to configure all the sources 
for the specified group to use the shared tree, never switching to the source tree. 
To enable the leaf router to switch to the source tree as soon as it receives the 
first multicast data packet, please use the no ip pim spt-threshold infinity 
command.