User guide

Overview of EPSR Topology Protection Switching-EPSR
6-135
AlliedView NMS Administration Guide (Configuring Network Services)
FIGURE 6-113 Example Ring Topologies
6.13.1.3 Summary of EPSR Configuration Data
When the network administrator uses the AlliedView NMS GUI to configure an EPSR topology, the following components
are involved. These will be explained in more detail as the AlliedView NMS GUI forms are described and an example con-
figuration is created.
• Ring Network VLAN - A VLAN in which the VLAN Interface in each device has two tagged linked ports, and forms a
loop.
• Non-ring Network VLAN - A VLAN in which the VLAN Interface in each device has two tagged linked ports, and
does not form a loop. This is a typical network VLAN, but in this case it could be part of a ring that has nodes not man-
aged by the AlliedView NMS.
• Protected Control Ring - The network VLAN once it is configured with all the control VLAN attributes.
• Protected Data Ring - The network VLAN once it is configured with all the protected VLAN attributes.
• Control VLAN Interface - The unique vlan VID which will be used as the control vlan for the EPSR domain.This
VLAN is a Network VLAN and can be created as described in 6.3.1.
Note: Although the network VLAN configured as a loop can be created before configuring an EPSR topology, it
is recommended to use the Network VLAN Manager application, since it makes control Vlans easier to
create with fewer possible errors, especially since the control VLAN must be configured to form a loop.
• Protected VLAN Interface – The vlan VIDs which require protection on the EPSR domain.