ECS4660-28F_Management Guide-R03

C HAPTER 52 | Multicast Routing Commands
PIM Multicast Routing
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ipv6 pim
trigger-hello-delay
This command configures the maximum time before transmitting a
triggered PIM Hello message after the router is rebooted or PIM is enabled
on an interface. Use the no form to restore the default value.
SYNTAX
ipv6 pim trigger-hello-delay seconds
no ipv6 pim trigger-hello-delay
seconds - The maximum time before sending a triggered PIM Hello
message. (Range: 0-5)
DEFAULT SETTING
5 seconds
COMMAND MODE
Interface Configuration (VLAN)
COMMAND USAGE
◆ 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.
◆ 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)#ipv6 pim trigger-hello-delay 3
Console(config-if)#
show ipv6 pim
interface
This command displays information about interfaces configured for PIM.
SYNTAX
show ipv6 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.