revertive

Function

The revertive command configures revertive switching or non-revertive switching in an ERPS ring. The switching mode determines whether the RPL owner port is blocked again after a link fault is rectified.

The undo revertive disable command restores the default configuration.

By default, ERPS rings use revertive switching.

Format

revertive { enable | disable }

undo revertive disable

Parameters

Parameter	Description	Value
enable	Enables revertive switching in an ERPS ring.	-
disable	Disables revertive switching. That is, non-revertive switching is used in an ERPS ring.	-

Views

ERPS ring view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After link faults in an ERPS ring are rectified, re-blocking the RPL owner port depends on the switching mode:

In revertive switching, the RPL owner port is re-blocked after the WTR timer expires, and the RPL is blocked.
In non-revertive switching, the WTR timer is not started, and the original faulty link is still blocked.

Prerequisites

The version v2 command has been executed to specify ERPSv2.

Example

# Configure non-revertive switching in ERPS ring 5.

<HUAWEI> system-view
[HUAWEI] erps ring 5
[HUAWEI-erps-ring5] revertive disable