CLI Reference Guide-R04

Chapter 21 | ERPS Commands
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Command Mode
ERPS Instance Configuration
Command Usage
◆ Only one RPL owner can be configured on an instance. 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 instance or the protection state is
enabled with the erps forced-switch or erps manual-switch command).
◆ The east and west connections to the instance 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-inst)#rpl owner
Console(config-erps-inst)#
rpl neighbor This command configures a ring node to be the Ring Protection Link (RPL)
neighbor. Use the no form to restore the default setting.
Syntax
rpl neighbor
no rpl
Default Setting
None (that is, neither owner nor neighbor)
Command Mode
ERPS Instance Configuration
Command Usage
◆ The RPL neighbor node, when configured, is a ring node adjacent to the RPL
that is responsible for blocking its end of the RPL under normal conditions (i.e.,
the instance is established and no requests are present in the instance) in
addition to the block at the other end by the RPL Owner Node. The RPL
neighbor node may participate in blocking or unblocking its end of the RPL,
but is not responsible for activating the reversion behavior.
◆ Only one RPL owner can be configured on an instance. If the switch is set as the
RPL owner for an ERPS ring, the west ring port is set as one end of the RPL. If the
switch is set as the RPL neighbor for an ERPS ring, the east ring port is set as the
other end of the RPL.
◆ 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
neighbor, the east ring port is set as being connected to the RPL.