User guide

964 Brocade 6910 Ethernet Access Switch Configuration Guide
53-1002581-01
Ethernet Ring Protection Switching
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ERPS Ring Configuration
Use the Administration > ERPS (Configure Domain) pages to configure ERPS rings.
CLI References
• “ERPS Commands” on page 359
Command Usage
• 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 Global
Configuration” on page 963) 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.
Parameters
These parameters are displayed:
Add
• Domain Name – Name of an ERPS ring. (Range: 1-12 characters)
Up to 6 ERPS rings can be configured on the switch.
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.
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 see (“ERPS Global
Configuration” on page 963), the east and west ring ports configured on each node, the RPL
owner specified, and the control VLAN 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.