Web Management Guide-R05

Table Of Contents
Chapter 13
| Basic Administration Protocols
Ethernet Ring Protection Switching
– 451
Limitations
When configuring a ring port, note that these ports cannot be part of a spanning
tree, nor can they be members of a static or dynamic trunk.
Parameters
These parameters are displayed:
Add
Domain Name
– Name of an ERPS ring. (Range: 1-12 characters)
Domain ID
– ERPS ring identifier used in R-APS messages. (Range: 1-255)
Show
Domain Name
– Name of a configured ERPS ring.
ID
– ERPS ring identifier used in R-APS messages.
Admin Status
– Shows whether ERPS is enabled on the switch.
Ver
– Shows the ERPS version.
MEG Level
– The maintenance entity group (MEG) level providing a
communication channel for ring automatic protection switching (R-APS)
information.
Control VLAN
– Shows the Control VLAN ID.
Node 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 node type as None, RPL Owner or RPL Neighbor.
Revertive
– Shows if revertive or non-revertive recovery is selected.
W/E
– Shows information on the west and east ring port for this node.
West Port
– Shows the west ring port for this node.
East Port
– Shows the east ring port for this node.
Interface
– The port or trunk which is configured as a ring port.