probe-interval (IPv6)

Function

The probe-interval command sets the interval for a switch to send Probe messages (null Register message) to the RP.

The undo probe-interval command restores the default value of the interval.

By default, the interval for a switch to send Probe messages to the RP is 5 seconds.

Format

probe-interval interval

undo probe-interval

Parameters

Parameter	Description	Value
interval	Specifies the interval for sending Probe messages to RP.	The value is an integer that ranges from 1 to 1799, in seconds.

Views

PIM-IPv6 view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When receiving a Register-Stop message sent by the RP, the DR at the source side stops sending Register messages and enters the register suppression state.

During the register suppression, the DR at the source side sends Probe messages to notify the RP that the multicast source is still in the Active state. After the register suppression times out, the DR at the source side starts to send Register 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 only PIM-SM (IPv6).

The interval set using the probe-interval command must be less than half the interval set using the register-suppression-timeout (IPv6) command.

Example

# In the PIM-IPv6 view, set the interval for sending Probe messages to RP to 6 seconds.

<HUAWEI> system-view
[HUAWEI] multicast ipv6 routing-enable
[HUAWEI] pim-ipv6
[HUAWEI-pim6] probe-interval 6