Chapter 20
| ERPS Commands
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Example
This example displays a summary of all the ERPS rings configured on the switch.
Console#show erps
ERPS Status : Enabled
Number of ERPS Domains : 1
Domain ID Enabled Ver MEL Ctrl VLAN State Type Revertive
------------ --- ------- --- --- --------- ---------- ------------ ---------
r&d 1 Yes 2 1 1 Idle RPL Owner Yes
W/E Interface Port State Local SF Local FS Local MS MEP RPL
---- --------- ---------- -------- -------- -------- ---- ---
West Eth 1/ 1 Blocking No No No Yes
East Eth 1/ 3 Forwarding No No No No
Console#
Table 102: show erps - summary display description
Field Description
Node Information
ERPS Status Shows whether ERPS is enabled on the switch.
Number of ERPS Domains Shows the number of ERPS rings configured on the switch.
Domain Displays the name of each ring followed by a brief list of status
information
ID ERPS ring identifier used in R-APS messages.
Enabled Shows if the specified ring is enabled.
Ver Shows the ERPS version.
MEL The maintenance entity group (MEG) level providing a communication
channel for ring automatic protection switching (R-APS) information.
Ctrl VLAN Shows the Control VLAN ID.
State Shows the following ERPS states:
Init – The ERPS ring has started but has not yet determined the status of
the ring.
Idle – If all nodes in a ring are in this state, it means that all the links in
the ring are up. This state will switch to protection state if a link failure
occurs.
Protection – If a node in this state, it means that a link failure has
occurred. This state will switch to idle state if all the failed links recover.
Type Shows ERPS node type as None, RPL Owner or RPL Neighbor.
Revertive Shows if revertive or non-revertive recovery is selected.
Interface Information
W/E Shows information on the west and east ring port for this node.
Interface The port or trunk which is configured as a ring port.
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