`erps ring <ringid> instance <id> role`

Syntax

erps ring <ringid>
        instance <id> role <rpl-owner|rpl-neighbor>

Description

In ERPS, there is a central node called RPL Owner Node which blocks one of the ports to ensure that there is no loop formed for the Ethernet traffic. The link blocked by the RPL owner node is called the Ring Protection Link or RPL. The node at the other end of the RPL is known as RPL Neighbor Node. It uses R-APS control messages to coordinate the activities of switching on/off the RPL link.

This command specifies the role of the node as owner or neighbor.

The no form of this command removes the configuration of the node role from the instance.

Command context

config-erps-ring-<ringid>

Parameters

<ringid>: Required, specifies the ID of the ring. Range: 1-239
<id>: Required, specifies the ERPS ring instance identifier. Range: 1-2.
<rpl-owner>: Blocks traffic at one end of the RPL. The blocked end sends out periodic R-APS.
<rpl-neighbor>: Blocks traffic at one end of the RPL. The blocked end does not generate periodic R-APS.

Authority

Administrators

Examples

Specify the role of the node as owner:

switch(config)# erps ring 3
switch(config-erps-ring-3)# instance 2
switch(config-erps-ring-3-inst-2) role rpl-owner

Specify the role of the node as neighbor:

switch(config)# erps ring 3
switch(config-erps-ring-3)# instance 3
switch(config-erps-ring-3-inst-2) role rpl-neighbour

Remove the configuration of the node role from the instance:

switch(config)# erps ring 3
switch(config-erps-ring-3)# instance 2
switch(config-erps-ring-3-inst-2) no role