Web Management Guide-R02

Table Of Contents
Chapter 13
| Basic Administration Protocols
Ethernet Ring Protection Switching
– 484 –
running. Once enabled, the RPL owner node and non-owner node state machines
will start, and the ring instance will enter the active state.
Parameters
These parameters are displayed:
Add
Instance Name – Name of an ERPS ring. (Range: 1-12 characters)
ID – ERPS instance identifier used in R-APS messages. (Range: 1-255)
Show
Name – Name of a configured ERPS instance.
ID – ERPS ring identifier used in R-APS messages.
Status – Shows whether ERPS is enabled on the switch.
Physical Ring – Shows the ERPS ring name.
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.
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.
Port State – The operational state:
Blocking – The transmission and reception of traffic is blocked and the
forwarding of R-APS messages is blocked, but the transmission of locally
generated R-APS messages is allowed and the reception of all R-APS
messages is allowed.
Forwarding The transmission and reception of traffic is allowed;
transmission, reception and forwarding of R-APS messages is allowed.