Comtech EF Data DTMX5000 SpectraCast - Manual (Page 166)

Central Configuration Unit DTMX5000 IP Gateway
B-30 Rev. 1
B.13 Client Parameters Sent from the RADIUS
B.13.1 Authentication Server
The RADIUS Authentication Server is used by the CCU for two purposes:
•
Client authentication
•
Relay of client parameters
The CCU needs certain client parameters in order to customize the system for
each client’s requirements and level of service. These parameters are sent to the
CCU by the RADIUS Authentication Server.
Note: These parameters are not part of the authentication process, and
authentication can proceed without them.
The following client parameters are relayed to the CCU in a RADIUS
Authentication Packet:
B.13.1.1 Quality of Service
Quality of Service (QoS) Level. The QoS parameter determines the bandwidth
share the subscriber receives. IT is measured by two parameters:
•
Committed Information Rate (CIR): The minimum information rate (in
bits per second) that the client is guaranteed to receive.
•
Maximum Bit Rate: The maximum bit rate that the client may receive at
any time. This rate must be equal to or greater than the CIR>
This parameter must be encoded in a FilterID (Type 11) RADIUS attribute (see
RFC2138 – RADIUS) in the following format:
A string which contains the CIR in bits per second, then a dash (“-“) and then
the maximum bit rate in bits per second. For example, 300000 – 1000000.