LevelOne GTL-2691 - Manual (Page 468)

C HAPTER 14 | Basic Administration Protocols
Ethernet Ring Protection Switching
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ERPS R ING
C ONFIGURATION
Use the Administration > ERPS (Configure Domain) pages to configure
ERPS rings.
CLI R EFERENCES
◆ "ERPS Commands" on page 1089
C OMMAND U SAGE
◆ An ERPS ring containing one Control VLAN and one or more protected
Data VLANs must be configured, and the global ERPS function enabled
on the switch (see "ERPS Configuration" on page 467 ) before a ring can
start running. Once enabled, the RPL owner node and non-owner node
state machines will start, and the ring will enter the active state.
◆ When configuring a ring port, note these ports cannot be part of a
spanning tree, nor can they be members of a static or dynamic trunk.
P ARAMETERS
These parameters are displayed:
Add
◆ Domain Name – Name of an ERPS ring. (Range: 1-12 characters)
Show
◆ 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.