With this CTS feature, the time spent by modems deferring contention ranging slots is significantly minimized. CTS Traffic Rate Policer CTS Traffic Rate Policer protects cable operators and other subscribers on the cable plant against hacked and noncompliance devices that do not throttle their upstream traffic rate. CTS Traffic Shaping CTS traffic shaping is a patent-pending technology that helps cable operators conserve bandwidth by reducing the chance that information must be retransmitted to hosts on the cable plant. With rate-limiting modems on a cable plant, a CMTS typically drops packets to enforce the rate limit. However, dropping packets from the requesting modem causes the host sending the information to retransmit its information.
Retransmitted information is a problem because it wastes bandwidth on the cable plant.
If both the hosts sending and requesting information are on the cable plant, the upstream bandwidth will be wasted as well. In particularly bad situations, some cable operators have experienced up to 40 percent of the bandwidth between a source and host comprising retransmitted information. To address this potential problem, Cisco CTS traffic shaping feature delays the scheduling of the upstream packet, which in turn causes the packet to be buffered on the cable CPE device instead of being dropped. CTS Dynamic Service Class With the CTS dynamic service class feature, cable operators can change QoS parameters on a given service class without disrupting service to the end user. Inc. Important Notices and Privacy Statement .