Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.

Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.

Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.

Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.

Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.

Abstract: A method of using DOCSIS 1.1 features to allow the addition of ISPs and QOS levels to a single cable modem without having to modify the CMTS is described in the various figures. Instead of using the SID of a data packet to determine the VPN tag of a data packet (DOCSIS 1.0), a service flow is used to identify the appropriate tag. This is done using the DOCSIS 1.1 configuration file. By doing so, the need for creating additional sub-interfaces in the cable modem interface does not arise. Instead, the configuration is modified at the provisioning server, i.e., the DHCP/TFTP server.

Abstract: Methods and apparatus for disabling and enabling the receiver circuitry of a cable modem connected to a cable network headend are described. The cable network headend transmits a message to the cable modem to disable the receiver circuitry when a cable network headend determines that the cable modem is idle. The cable modem listens for messages on the cable network during activation windows between periodic intervals. Messages arriving during these activation windows can enable the receiver circuitry of the cable modem as well as synchronize the clocks of the cable network headend and the cable modem. The cable modem can also self enable its receiver circuitry and inform the cable network headend of its enabled state.

Abstract: A system for testing a cable network during normal operation interleaves test signals with live data traffic. Installed cable modems are used to generate the test signals. During live communication, such modems send upstream data at allotted time periods. Periodically, there are time slots when no modem is transmitting on the network. During these times, specific modems may be directed to transmit specific test signals. A controller such as a cable modem termination system directs specific modems to transmit signals at defined frequencies and powers during specific time slots. In this manner, the system can monitor the frequency response of the cable network at various locations, and thereby determine “on-the-fly” when maintenance or modification is required.

Abstract: A method of using DOCSIS 1.1 features to allow the addition of ISPs and QOS levels to a single cable modem without having to modify the CMTS is described in the various figures. Instead of using the SID of a data packet to determine the VPN tag of a data packet (DOCSIS 1.0), a service flow is used to identify the appropriate tag. This is done using the DOCSIS 1.1 configuration file. By doing so, the need for creating additional sub-interfaces in the cable modem interface does not arise. Instead, the configuration is modified at the provisioning server, i.e., the DHCP/TFTP server.

Abstract: Methods, apparatus, and computer-readable media are disclosed for creating a virtual lookahead upstream receiver in a single physical upstream receiver in a CMTS, thereby avoiding having to dedicate an upstream receiver strictly for lookahead capability. A lookahead receiver is used to determine whether a potential alternative frequency is better than the frequency presently being used. A physical upstream receiver is assigned to operate under a set of operational parameters associated with a logical lookahead receiver during a particular time slot. The logical receiver receives upstream data from a selected test modem using an alternative upstream frequency. It is then determined whether the alternative upstream frequency is preferable over the frequency presently being used. If so, the physical receiver is configured to operate normally under the set of operational parameters associated with the logical receiver.

Abstract: A technique is described for improving packet performance in an access network. The access network comprises a Head End and a plurality of nodes. The access network further includes at least one shared-access upstream channel used by the first plurality of nodes to communicate with the Head End. Propagation delay data associated with at least a portion of the plurality of nodes using the at least one upstream channel is obtained. The propagation delay data is then used to dynamically adjust the lookahead time value associated with the generating of MAP messages for the at least one upstream channel.

Abstract: Methods and devices are provided for regulating traffic on a network. According to some aspects of the invention, if a subscriber's upstream traffic exceeds a predetermined level over a first period of time, the subscriber's quality of service is adjusted without requiring the subscriber to re-register. According to some embodiments, a first token bucket is used to determine whether the subscriber's upstream traffic exceeds the predetermined level over the first period of time. In some such embodiments, the first token bucket is used to control the burst size of another token bucket, depending on the subscriber's upstream traffic during the first period of time.