About Subscriber Keys

Note: Subscriber keys is a function that is applicable to RADIUS mode only. For more information on RADIUS configuration, see CMP Wireless User's Guide.
An MPE device must create a data session to track the life cycle of the request and process of any subsequent Interim-Update messages or a RADIUS Accounting-Stop message, when a RADIUS Accounting-Start message is received from: To create this session, the MPE device determines a subscriber ID from the RADIUS message using subscriber keys. You configure subscriber keys using the CMP system. Subscriber keys are associated with individual BNG systems.
The subscriber key is a combination of specified type-length values (TLVs) or vendor-specific attributes (VSAs) found in the RADIUS message. The order in which the attribute values are combined is defined in the CMP system. After the subscriber key is computed, the key is matched against the subscribers defined on the MPE device:

For more information on CoA messages, see Managing RADIUS CoA Templates.