User's Manual

Table Of Contents
Users Manual of SGS-5240 Series Managed Switch
167
Domain Name Name of a configured ERPS ring.
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.
MEG Level The maintenance entity group (MEG) level providing a communication channel for ring automatic protection
switching (R-APS) information.
Admin Status Shows whether ERPS is enabled on the switch.
West Port Shows the west ring port for this node.
East Port Shows the east ring port for this node.
RPL Owner Shows if this node is the RPL owner.
Control VLAN Shows the Control VLAN ID.
Non ERPS Device Protection Shows if non-standard health-check packets are sent when in protection state. Configure
Details
Domain Name Name of a configured ERPS ring.
Admin Status Activates the current ERPS ring.
Before enabling a ring, the global ERPS function should be enabled, the east and west ring ports configured on each node, the
RPL owner specified, and the controlVLAN configured. Once enabled, the RPL owner node and non-owner node state
machines will start, and the ring will enter idle state if no signal failures are detected.