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PacketCable 1.0 comprises eleven specifications and six technical reports which define call signaling, quality of service (QoS), codec usage, client provisioning, billing event message collection, public switched telephone network (PSTN) interconnection, and security interfaces for implement a single-zone PacketCable solution for residential Internet Protocol (IP) voice services.
DOCSIS 3.0 [15] (cable modem) 1216/216 Mbit/s: 152/27 MB/s: 2006 G.fast ITU G.9701: 2000 Mbit/s: 250 MB/s: 2019 GPON (fiber optic service) 2488/1244 Mbit/s: 311/155.5 MB/s: 2008 [16] DOCSIS 3.1 [17] (cable modem) 10/2 Gbit/s: 1.25/0.25 GB/s: 2013 10G-PON (fiber optic service) 10/2.5 Gbit/s: 1.25/0.3125 GB/s: 2012 [18] DOCSIS 4.0 (cable modem ...
DOCSIS 3.1 uses channel bandwidths of up to 192 MHz in the downstream. [14] Upstream: DOCSIS 1.0/1.1 specifies channel widths between 200 kHz and 3.2 MHz. DOCSIS 2.0 & 3.0 specify 6.4 MHz, but can use the earlier, narrower channel widths for backward compatibility. DOCSIS 3.1 uses channel bandwidths of up to 96 MHz in the upstream. Modulation:
In telecommunications, cable Internet access, shortened to cable Internet, is a form of broadband internet access which uses the same infrastructure as cable television. Like digital subscriber line and fiber to the premises services , cable Internet access provides network edge connectivity ( last mile access) from the Internet service ...
Comcast's business Internet plans are similar to their residential plans, with slightly different speed offerings and prices. Notably, the main difference between Comcast's residential Internet and Business Internet is the lack of a monthly data cap with the business plans. [49]
Data Over Cable Service Interface Specification Provisioning of Ethernet Passive Optical Network, or DPoE, is a set of CableLabs specifications that implement the DOCSIS service layer interface on existing Ethernet PON (EPON, GEPON or 10G-EPON) media access control (MAC) and physical layer (PHY) standards. In short it implements the DOCSIS ...
A given headend may have between 1–12 CMTSs to service the cable modem population served by that headend or HFC hub. One way to think of a CMTS is to imagine a router with Ethernet interfaces (connections) on one side and coaxial cable RF interfaces on the other side. The Ethernet side is known as the Network Side Interface or NSI. [3] [4]
QVC: Comcast sold its majority stake to Liberty Media in 2003 Speed Channel : joint venture with Cox Communications and Fox Entertainment Group ; Fox acquired Comcast and Cox's stakes in 2001 Time Warner Entertainment (26%, with Time Warner Inc.): Comcast sold its 26% stake to Time Warner Inc. (now Warner Bros. Discovery ) in 2003.