The pim hello-option holdtime command sets the neighbor timeout period carried in PIM Hello packets to be sent by a PIM interface.
The undo pim hello-option holdtime command restores the default value.
By default, the neighbor timeout period carried in PIM Hello packets to be sent by a PIM interface is 105 seconds.
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Usage Scenario
You can run this command to set the neighbor timeout period carried in PIM Hello packets to be sent by a router. If the receive end does not receive any Hello packet from the local device within the timeout period, the receive end considers that the local neighbor is aged. If routers need to quickly detect PIM neighbor changes, set this parameter to a smaller value, but the value must be greater than the configured interval for sending Hello messages.
Prerequisites
The multicast routing function has been enabled using the multicast routing-enable command in the public network instance view or VPN instance view.
Configuration Impact
If the pim hello-option holdtime command is run more than once, the latest configuration overrides the previous one.
<HUAWEI> system-view [~HUAWEI] multicast routing-enable [*HUAWEI] interface GigabitEthernet 0/1/0 [*HUAWEI-GigabitEthernet0/1/0] undo portswitch [*HUAWEI-GigabitEthernet0/1/0] pim hello-option holdtime 120