CLI Reference Guide-R04

Chapter 21 | ERPS Commands
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Figure 4: Sub-ring without Virtual Channel
Example
Console(config-erps-inst)#raps-without-vc
Console(config-erps-inst)#
version This command specifies compatibility with ERPS version 1 or 2.
Syntax
version {1 | 2}
no version
1 - ERPS version 1 based on ITU-T G.8032/Y.1344.
2 - ERPS version 2 based on ITU-T G.8032/Y.1344 Version 2.
Default Setting
2
Command Mode
ERPS Instance Configuration
Command Usage
◆ In addition to the basic features provided by version 1, version 2 also supports:
■
Multi-ring/ladder network support
■
Revertive/Non-revertive recovery
■
Forced Switch (FS) and Manual Switch (MS) commands for manually
blocking a particular ring port
■
Flush FDB (forwarding database) logic which reduces amount of flush FDB
operations in the ring
■
Support of multiple ERP instances on a single ring
◆ Version 2 is backward compatible with Version 1. If version 2 is specified, the
inputs and commands are forwarded transparently. If set to version 1, MS and
FS operator commands are filtered, and the switch set to revertive mode.
Sub-ring
with Virtual
Channel
RPL Port
Interconnection Node
Ring Node
Major Ring