Chapter 51
| Multicast Routing Commands
PIM Multicast Routing
– 1173 –
Command Mode
Interface Configuration (VLAN)
Command Usage
â—† When a router first starts or PIM is enabled on an interface, the hello delay is set
to random value between 0 and the trigger-hello-delay. This prevents
synchronization of Hello messages on multi-access links if multiple routers are
powered on simultaneously.
â—† Also, if a Hello message is received from a new neighbor, the receiving router
will send its own Hello message after a random delay between 0 and the
trigger-hello-delay.
Example
Console(config-if)#ip pim trigger-hello-delay 3
Console(config-if)#
show ip pim interface This command displays information about interfaces configured for PIM.
Syntax
show ip pim interface [vlan vlan-id]
vlan-id - VLAN ID (Range: 1-4094)
Command Mode
Normal Exec, Privileged Exec
Command Usage
This command displays the PIM settings for the specified interface as described in
the preceding pages. It also shows the address of the designated PIM router and
the number of neighboring PIM routers.
Example
Console#show ip pim interface vlan 1
PIM is enabled.
VLAN 1 is up.
PIM Mode : Dense Mode
IP Address : 192.168.0.2
Hello Interval : 30 sec
Hello HoldTime : 105 sec
Triggered Hello Delay : 5 sec
Join/Prune Holdtime : 210 sec
Lan Prune Delay : Disabled
Propagation Delay : 500 ms
Override Interval : 2500 ms
Graft Retry Interval : 3 sec
Max Graft Retries : 3
State Refresh Ori Int : 60 sec
Console#
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