Technical information

ADC Telecommunications, Inc.
572 C
HAPTER 20: MANAGING CABLE MODEMS
Managing BPI Parameters
The Baseline Privacy Interface (BPI) protocol provides cable modems with
data privacy across the Hybrid Fiber-Coaxial (HFC) network by encrypting
traffic between cable modems and the CMTS.
NOTE: For a cable modem to use BPI, you must configure the Baseline
Privacy settings in the modem configuration file. This file downloads during
the transfer of operation parameters.You create configuration files within
the cable modem provisioning process. Refer to the FastFlow Broadband
Provisioning Manager CLI-based Administration Guide, or the guide of your
external provisioning manager.
BPI provides authorization parameters and Traffic Encryption Keys (TEKs) that
secure traffic between cable modems and the CMTS.
During the CMTS registration process, the CMTS assigns one or more static
Service Identifiers (SIDs) to the registering cable modem that matches the
cable modems class-of-service provisioning. The first static SID that the
CMTS assigns is the primary SID and serves as the cable modem’s primary
Security Association Identifier (SAID).
After successfully completing authentication and authorization with the
CMTS, the cable modem sends a request to the CMTS requesting TEKs to
use with each of the SAIDs. The CMTS response contains the TEKs.
Monitoring BPI includes the following tasks:
■ Viewing Privacy Authorizations
■ Configuring Privacy Authorizations.
■ Viewing an Authorization X.509 Certificate
■ Viewing privacy keys.
Before You Begin
Before you begin to manage privacy authorizations and TEK, follow this
procedure:
1. Navigate to Network Browser > GroupName > ChassisName > Cuda
Chassis Manager > Configuration > CMTS > Interfaces.
2. Click the Interfaces tab. Select the interface that you want to view or
configure.