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Discovering Device Roles


To discover the roles of devices found during element discovery:

  1. In the Network Activate task pane, select Prestage Devices > Manage Device Roles > Discover Roles.

    The Role Discovery Status window shows the discovery of unassigned devices found in the database.:

    The graph portion of this example shows how many of the unassigned devices the pre-staging rules determined could be assigned the N-PE role and how many could be assigned the P role. The UNKNOWN bar indicates devices that had no MPLS role assigned but for which the Network Activate software was unable to recommend a role.


    You cannot discover a device as a PE device if no user-to-network interfaces (UNIs) are available in the device.

    The Network Activate application throws the following error message:

    2012-06-08 10:17:23,446 ERROR [PreStageDeviceManagerBean] (PreStageDeviceManagerBean#savePreStageDeviceList Thread-6894 (group:HornetQ-client-global-threads-1332782448):) No ge/fe/at/t1 interfaces in this PE device: junos-mx480-space; it can only be used for virtual routers

  2. To view the devices for which the Network Activate software recommends the PE role, click on the N_PE bar.

    The Assign Roles window appears.

    The question mark on each icon indicates that the device role has not yet been assigned.

Device role discovery is now complete. To assign device and interface roles, follow the steps in the next section, Assigning Device Roles.