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ADC Telecommunications, Inc.
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HAPTER 19: MANAGING CABLE MODEMS
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). If the cable modem is configured to
operate BPI+, the cable modem’s BPI+ security functions initialize.
After successfully completing authentication and authorization with the
CMTS, the cable modem sends a request to the CMTS requesting Traffic
Encryption Keys (TEKs) to use with each of the SAIDs. The CMTS response
contains the TEKs.