The pim ipv6 timer hello command sets the interval for sending Hello messages on an interface.
The undo pim ipv6 timer hello command restores the default value of the interval.
By default, the interval for sending Hello messages on an interface is 30 seconds.
| Parameter | Description | Value |
|---|---|---|
| interval | Specifies the interval for sending Hello messages. | The value is an integer that ranges from 1 to 18000, in seconds. |
GE interface view, XGE interface view, MultiGE interface view, 25GE interface view, 40GE interface view, 100GE interface view, Eth-Trunk interface view, VLANIF interface view, loopback interface view
Usage Scenario
PIM devices periodically send Hello messages to maintain PIM neighbor relationships. You can run the pim ipv6 timer hello command to set the interval for sending Hello messages.
Prerequisites
IPv6 multicast routing has been enabled globally using the multicast ipv6 routing-enable command in the system view.
Precautions
This command is valid for both PIM-DM (IPv6) and PIM-SM (IPv6).
The interval for sending Hello messages must be shorter than the timeout period of PIM neighbors. You can run the pim ipv6 hello-option holdtime command to set the timeout period of PIM neighbors.
The configuration is the same as the timer hello (IPv6) command in the PIM-IPv6 view. The configuration in the interface view takes precedence over the configuration in the PIM-IPv6 view. The value configured in the PIM-IPv6 view is used if no value is configured on the interface.
# Set the interval for sending Hello messages to 40 seconds on VLANIF100.
<HUAWEI> system-view [HUAWEI] multicast ipv6 routing-enable [HUAWEI] interface vlanif 100 [HUAWEI-Vlanif100] pim ipv6 timer hello 40
<HUAWEI> system-view [HUAWEI] multicast ipv6 routing-enable [HUAWEI] interface gigabitethernet 0/0/1 [HUAWEI-GigabitEthernet0/0/1] undo portswitch [HUAWEI-GigabitEthernet0/0/1] pim ipv6 timer hello 40