Maintenance; Elps (G.8031); Introduction; Preparing For Configurations - Raisecom ISCOM2600G-HI (A) Series Configuration Manual

Raisecom
ISCOM2600G-HI (A) Series Configuration Guide
No.
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4.1.9 Maintenance

Maintain the ISCOM2600G-HI series switch as below.
Raisecom(config)#clear ethernet ring-
protection

4.2 ELPS (G.8031)

4.2.1 Introduction

Ethernet Linear Protection Switching (ELPS) is an Automatic Protection Switching (APS)
protocol based on the ITU-TG.8031 recommendation. It is an end-to-end protection
technology used to protect an Ethernet connection.
ELPS deploys protection resources for working resources, such as path and bandwidth. It
takes a simple, fast, and predictable mode to switch network resources, which is easier for
carriers to plan networks more efficiently and learn network active status.

4.2.2 Preparing for configurations

Scenario
Configuring ELPS feature in Ethernet can make Ethernet reliability up to telecommunication
level (network self-heal time less than 50ms). It is an end-to-end protection technology used
for protecting an Ethernet link.
ELPS supports 1+1 protection switching and 1:1 protection switching modes:


Based on whether the source end and destination end switch traffic simultaneously, ELPS is
divided into unidirectional switching and bidirectional switching:

Command
Raisecom#show ethernet ring-
protection statistics
Command
ring-id
statistics
1+1 protection switching: each working line is assigned with a protection line. In the
protection domain, the source end sends traffic through the working and protection lines
while the destination end receives the traffic from one line.
1:1 protection switching: each working line is assigned with a protection line. The source
end sends traffic through the working/protection line. In general, the source sends traffic
through the working line. The protection line is a backup line. When the working line
fails, the source end and destination end communicate through APS protocol to switch
traffic to the protection line simultaneously.
Unidirectional switching: when one direction of a line fails, one end can receive the
traffic while the other end fails to receive the traffic. The end failing to receive the traffic
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4 Ring network protection
Description
Show G.8032 ring statistics.
Description
Clear statistics about the protection
ring.
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