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Cisco Broadband Access Center 3.8 Administrator Guide
OL-27172-01
Chapter 4 CPE Management Overview
Assigning Devices to Provisioning Groups
Assigning Devices to Provisioning Groups
Devices can be assigned to a provisioning group in three ways: explicitly, automatically, or using a
combination of both.
Explicit Assignment
You can explicitly assign a device to a provisioning group. After devices appear in the default
provisioning group, the provisioning system may, using the API, assign the device to a new provisioning
group. On next contact with the device, Cisco BAC redirects the device.
To set the device to contact the assigned provisioning group, change the URL of the Cisco BAC server
to the URL of the provisioning group URL. The Cisco BAC server URL is stored, and from then on, the
device contacts Cisco BAC at the new address.
To move the device from one provisioning group to another, change the home provisioning group of the
device using the API or the administrator user interface. Each provisioning group has a URL associated
with it. To facilitate the move, on next contact, the ACS URL on the device is changed to the new
provisioning group URL.
Automatic Membership
If a device has not been explicitly assigned to a provisioning group, the device stays in the provisioning
group in which it is brought up. This allows a network-directed assignment of CPE to the provisioning
groups. You can use the automatic membership feature for roaming devices, enabling the local
provisioning group to service these devices when they are moved.
When a device appears in a new provisioning group, it is automatically assigned to the new provisioning
group, and the device data is purged from the old provisioning group. This process involves
communicating with the RDU, which, in turn, updates the DPEs in the old and new provisioning groups.
This is an expensive process; therefore, take care to prevent a large number of device migrations.
Automatic assignment of a device to a provisioning group works only if the DPEs are configured to allow
unknown (unregistered) devices that do not show up in any provisioning group.
If the devices do show up in another provisioning group and the provisioning group is configured to
allow access for unknown devices, Cisco BAC automatically assigns the device to the provisioning
group.
For details on how to configure access for unknown devices, see the Cisco Broadband Access Center 3.8
DPE CLI Reference.
Combined Approach
You can explicitly assign devices and allow automatic membership of devices to a provisioning group.
For example, a generic unregistered device that appears on the network in a provisioning group is
automatically assigned to it. Subsequently, the OSS explicitly assigns the device to another provisioning
group by using the API.