version (ERPS ring view)

Function

The version command configures an ERPS version.

The undo version command restores the default ERPS version.

By default, ERPSv1 is used.

Format

version { v1 | v2 }

undo version

Parameters

Parameter	Description	Value
v1	Specifies ERPSv1.	-
v2	Specifies ERPSv2.	-

Views

ERPS ring view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

ERPS has two versions: ERPSv1 released by the ITU-T in June and ERPSv2 released in August, 2010. ERPSv2 that is compatible with ERPSv1 provides the following enhanced functions:

Multi-ring topologies, such as intersecting rings
RAPS PDU transmission on virtual channels (VCs) and non-virtual-channels (NVCs) in sub-rings
Forced Switch (FS) and Manual Switch (MS)
Revertive and non-revertive switching

To configure an ERPS version, run the version command.

Precautions

Before specifying ERPSv1 for an ERPSv2-enabled device, delete all ERPS configurations that ERPSv1 does not support. Otherwise, the version cannot be changed.

Example

# Specify ERPSv2 for ERPS ring 5.

<HUAWEI> system-view
[HUAWEI] erps ring 5
[HUAWEI-erps-ring5] version v2