pim ipv6 hello-option holdtime

Function

The pim ipv6 hello-option holdtime command sets the timeout period during which the PIM interface waits to receive the Hello message from its neighbor.

The undo pim ipv6 hello-option holdtime command restores the default value of the timeout.

By default, the timeout period during which the PIM interface waits to receive the Hello message from its neighbor is 105 seconds.

Format

pim ipv6 hello-option holdtime interval

undo pim ipv6 hello-option holdtime

Parameters

Parameter	Description	Value
interval	Specifies the timeout period during which the PIM interface waits to receive Hello messages from its neighbor.	The value is an integer that ranges from 1 to 65535, in seconds.

Views

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

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

On a PIM (IPv6) network, after a switch receives a Hello message from its PIM neighbor, it starts a timer based on Holdtime value in the Hello message. If the switch does not receive any Hello message from its PIM neighbor when the timer expires, the switch considers the neighbor invalid or unreachable.

The pim ipv6 hello-option holdtime command sets the timeout period during which the PIM interface waits to receive the Hello message from its neighbor.

Prerequisites

IPv6 multicast routing has been enabled globally using the multicast ipv6 routing-enable command in the system view.

Precautions

The timeout period must be greater than the interval for sending Hello messages, which is set using the pim ipv6 time hello command.

The pim ipv6 hello-option holdtime command has the same function as the hello option holdtime (IPv6) command in the PIM-IPv6 view. By default, if the pim ipv6 hello-option holdtime command is not used, the value configured in the PIM-IPv6 view is used; otherwise, the value configured in the interface view is used.

Example

# Set the timeout period during which VLANIF100 waits to receive Hello messages from its neighbor to 120 seconds.

<HUAWEI> system-view
[HUAWEI] multicast ipv6 routing-enable
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] pim ipv6 hello-option holdtime 120

# Set the timeout period during which GE0/0/1 waits to receive Hello messages from its neighbor to 120 seconds.

<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 hello-option holdtime 120