Black Box LGB6026A, Руководство по управлению

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C
HAPTER
48 | Multicast Routing Commands
PIM Multicast Routing
topology changes (sources joining or leaving a multicast group) before
the default three-minute state timeout expires.
◆
This command is only effectively for interfaces of first hop, PIM-DM
routers that are directly connected to sources of multicast groups.
E
XAMPLE
Console(config-if)#ipv6 pim state-refresh origination-interval 30
Console(config-if)#
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.
S
YNTAX
ipv6 pim triggerr-hello-delay seconds
no ipv6 pim triggerr-hello-delay
seconds - The maximum time before sending a triggered PIM Hello
message. (Range: 0-5)
D
EFAULT
S
ETTING
5 seconds
C
OMMAND
M
ODE
Interface Configuration (VLAN)
C
OMMAND
U
SAGE
◆
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.
E
XAMPLE
Console(config-if)#ipv6 pim trigger-hello-delay 3
Console(config-if)#