User guide

Configuring Network Services Protection Switching-EPSR
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AlliedView NMS Administration Guide
FIGURE 6-133 GUI for Network VLAN no Longer with a Protection Scheme
6.13.6 Troubleshooting the EPSR Configuration
Using the AlliedView NMS GUI allows the network administrator to more easily understand and resolve the following
maintenance scenarios:
• The EPS Control and Data rings are not configured properly and so cannot provide the protection service as described in
6.13.1
• A path for the protected data VLAN has broken, and the secondary path has been activated.
• Both the primary and secondary paths for a device are broken, with a loss data service to and from that device.
6.13.6.1 Errors in EPSR Configuration
By using the AlliedView NMS GUI, the administrator can usually avoid most configuration errors and produce a control ring
and associated data rings that follow the configuration guidelines listed in 6.13.4. However, if there are configuration errors
(usually done by configuring each device separately through the command interface), the GUI allows the user to easily spot
the configuration fault and correct it.
Common EPSR configuration errors can be grouped as follows:
• The protection VLAN is actually unprotected on a device:
• The protected VLAN interface is not part of the domain with the control VLAN interface
• The EPSR domain is part of a different control ring.
• The control VLAN is not configured completely/properly
• There are multiple Masters or no Masters.