Chapter 20
| ERPS Commands
– 573 –
Command Mode
ERPS Configuration
Command Usage
â—† Only one RPL owner can be configured on a ring. The owner blocks traffic on
the RPL during Idle state, and unblocks it during Protection state (that is, when
a signal fault is detected on the ring or the protection state is enabled with the
erps forced-switch or erps manual-switch command).
â—† The east and west connections to the ring must be specified for all ring nodes
using the ring-port command. When this switch is configured as the RPL owner,
the west ring port is automatically set as being connected to the RPL.
Example
Console(config-erps)#rpl owner
Console(config-erps)#
version This command specifies compatibility with ERPS version 1 or 2.
Syntax
version {1 | 2}
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 Configuration
Command Usage
â—† In addition to the basic features provided by version 1, version 2 also supports:
â–
Multi-ring/ladder network support
â–
Revertive/Non-revertive recovery
â–
Forced Switch (FS) and Manual Switch (MS) commands for manually
blocking a particular ring port
â–
Flush FDB (forwarding database) logic which reduces amount of flush FDB
operations in the ring
â–
Support of multiple ERP instances on a single ring
â—† 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.
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