
	Where results make sense

Topic: DOCSIS

Related Topics

Cable modem

Cable television

Cat 5

Uncapping

Modem

Coaxial cable

TFTP

Ethernet

DSLAM

IBM 1302

Rouzbeh Yassini

Traceroute

Penet remailer

IPv6

Bandwidth

In the News (Tue 1 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	DOCSIS project home page
		docsis is a small program that can be used to generate binary configuration files for DOCSIS-compliant cable modems.
		DOCSIS stands for Data over Cable Service Interface Specification and is a standard developed by Cablelabs.
		This program is useful for people/operators using DOCSIS Cable Modems that want to implement their own provisioning system, or for people testing/working with DOCSIS technology in general.
	docsis.sourceforge.net (194 words)

	CommsDesign - Ensuring Strong TCP Performance Over Docsis Modems
		Docsis defines different transmission characteristics for the downstream transmission (transmission from the cable modem termination system [CMTS]; to the cable modem at home) and the upstream transmission (from the home back to the CMTS).
		Example 1 shows that the maximum TCP throughput achieved by the a Docsis 1.0 cable modem is limited to 7.2 Mbit/s even though the downstream channel is capable of much greater bandwidth.
		Performance of the DOCSIS 1.1 cable modems is expected to be significantly better than that of DOCSIS 1.0 cable modems, but there is still significant degradation of performance compared to the case when the cable modem is doing downstream only.
	www.commsdesign.com /design_corner/OEG20030409S0013 (4342 words)

	DOCSIS 1.1 for the Cisco uBR7200 Series Universal Broadband Routers
		DOCSIS 1.1 cable modems can coexist with DOCSIS 1.0 and 1.0+ cable modems in the same network—the Cisco uBR7200 series provides the levels of service that are appropriate for each cable modem.
		In DOCSIS 1.1, the basic unit of QoS is the service flow, which is a unidirectional sequence of packets transported across the RF interface between the cable modem and CMTS.
		DOCSIS 1.1 implemented a number of changes to allow great flexibility in the ability of a cable modem and service provider to transmit almost any combination of data traffic and real-time traffic, such as voice and video.
	www.cisco.com /univercd/cc/td/doc/product/software/ios121/121newft/121limit/121cx/docsis11.htm (7234 words)

	EETimes.com - DOCSIS 2.0: Upping Upstream Performance in Cable Modem Designs
		DOCSIS 2.0 triples the maximum upstream capacity of DOCSIS 1.1, raising the upstream throughput to 30.72 Mbps by using 64 QAM or 128 QAM trellis-coded modulation (TCM) over a 6.4-MHz channel (Figure 1).
		Prior to DOCSIS 2.0, methods for suppressing noise ranged from installing upstream filters at each residence to segmenting the plant into smaller node sizes, but these approaches are labor intensive and costly for the cable operator.
		DOCSIS 2.0 not only specifies a higher maximum throughput per upstream channel, it also specifies enhanced noise combating techniques to ensure the optimal utilization of the channel.
	www.eetimes.com /story/OEG20020617S0011 (2336 words)

	Seminar - An Introduction to DOCSIS
		DOCSIS covers several different aspects of the system to provide the data delivery solution and there are different specifications for each piece of the system.
		DOCSIS is composed of many different specifications for each major system interface.
		The DOCSIS protocol allows complete control of data being transmitted by the CM thus allowing telephone and other QoS data streams to be supported.
	www.nextgendc.com /seminar_docsis_intro.htm (1142 words)

	DOCSIS™ Cable Modem Technology
		DOCSIS has declared the value 0x1FFE to be the well-known PID for all CM traffic on that channel.
		DOCSIS modems are being deployed by cable operators at a rate of approximately 1000 per week.
		DOCSIS 1.1 will allow voice and other streaming services to be deployed over cable systems, and the technology is being deployed in Europe as well as other parts of the world.
	www.comsoc.org /~ci/private/2001/mar/fellows.html (6330 words)

	What is DOCSIS? - a definition from Whatis.com - see also: CableLabs Certified Cable Modems, Data Over Cable Systems ... (Site not responding. Last check: )
		Although "DOCSIS" continues to be used, the newer name emphasizes that the standard is now being used to certify the products of cable modem makers.
		As DOCSIS continues to evolve to new versions, existing modems can be upgraded to the newer versions by changing the programming in the cable modem's EEPROM memory.
		DOCSIS specifies modulation schemes and the protocol for exchanging bidirectional signals over cable.
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci213909,00.html (410 words)

	Four More DOCSIS® 2.0 Modems Gain CableLabs® Certified Status
		DOCSIS 2.0 modems from Terayon, Texas Instruments and Thomson were certified.
		DOCSIS 2.0 gives cable operators the ability to offer speeds up to 600 times faster than are available through standard dial-up telephone modems.
		DOCSIS 2.0 is backward compatible with DOCSIS 1.1, which opens a technological doorway to augmented revenue streams for cable providers by enabling the existence of high-speed Internet service tiers, via techniques known as data fragmentation and concatenation.
	www.cablelabs.com /news/pr/2003/03_pr_docsis_cw26_072403.html (750 words)

	DOCSIS Market Forecast
		DOCSIS network coverage is expected to climb to 83 percent by the end of 2003.
		In the year 2000, DOCSIS unit shipments are projected to top 2.3 million, equal to 79 percent of all cable modems shipped in North America.
		More than 30 vendors are now building DOCSIS cable modems, but five companies controlled the market in the first half of 1999: 3Com, General Instrument, Samsung, Thomson Consumer Electronics, and Toshiba.
	www.kineticstrategies.com /docsis.html (344 words)

	Seminar - The DOCSIS Physical Layer
		The primary difference between DOCSIS 1.x and DOCSIS 2.0 is the addition of higher upstream data rates.
		DOCSIS 2.0 uses A-TDMA (advanced frequency agile time division multiple access) and S-CDMA (synchronous code division multiple access) for the upstream modulation.
		The system is scalable since there may be several downstream and upstream DOCSIS channels operating simultaneously.
	www.nextgendc.com /seminar_docsis_physical.htm (596 words)

	Introduction to DOCSIS
		The second standard, DOCSIS 1.1, was released as an interim specification in March 1999.
		This standard of DOCSIS ushered in a new class of Cable Modem Termination System (CMTS) equipment known as "Carrier Class" or "Next Generation." Within the cable data network, the principal function of the CMTS is to transparently carry Internet traffic between the MSO headend and subscriber locations.
		This next-generation standard is designed to be backwards compatible, enabling DOCSIS 1.0 and 1.1 modems to operate in the same spectrum on the same network.
	www.arrisi.com /training/courses/docsis_overview/lesson_2/lesson2_2.htm (238 words)

	broadband help » News » Docsis 3.0: Cable's Anti-Fios? - 50-100Mbps per user - someday
		Docsis 3.0 modems and network upgrades should eventually provide cable users with 50-100Mbps to the home.
		docsis 3.0 is still a VERY expensive implementation, besides there are no cozy affiliations with teir-1 backbone providers that will give the cablecos a sweetheart deal for 2-3 times the current bandwidth they're currently using.
		The DOCSIS 1.0 to 1.1 to 2.0 evolution has effectively done nothing to increase downstream bandwidth capability of the plant, so the notion that an ISP is gearing up their backbones to be 2.0-ready is puzzling at best.
	www.broadbandreports.com /shownews/62019 (3786 words)

	DOCSIS: The Next Generation - 7/1/2004 - CED - CA431191 (Site not responding. Last check: )
		DOCSIS 3.0, which would likely require a silicon change at the modem and at the CMTS, could offer downstream bandwidth of 200 Mbps per channel, and 100 Mbps per channel upstream.
		But well before DOCSIS 3.0 becomes a reality, CableLabs and its members are already working on a 2.x version of DOCSIS that would nail on features such as roaming, committed data rates, MAC layer improvements, and better commercial service capabilities.
		Chief among that group is the DOCSIS Set-top Gateway (DSG), a capability that gives operators a standard method to deliver messages, guide data and more advanced streaming applications via a DOCSIS channel to the digital set-top box.
	www.cedmagazine.com /article/CA431191.html (1143 words)

	DOCSIS 1.1 Off to a Running Start - Broadband Week 10/08/2001 (Site not responding. Last check: )
		The initial DOCSIS 1.0 specification gave the cable industry a platform for ensuring that DOCSIS-based modems and headends from different vendors all would be interoperable with each other.
		Building on that interoperability, DOCSIS 1.1 is intended to help foster deployment of new revenue-generating services by setting technical standards for such features as different bandwidth tiers and IP telephony.
		DOCSIS 1.0, considered a major step in helping to create a retail market for cable modems, has in fact done so, creating a potentially major cable presence in the voice-over-Internet protocol consumer-electronics game.
	www.broadbandweek.com /news/011008/011008_cable_docsis.htm (614 words)

	DOCSIS: Data Over Cable Service Interface Specification (DOCSIS 1.0, DOCSIS 1.1, DOCSIS 2.0, eDOCSIS)
		There are two key components in the DOCSIS architecture: Cable Modem (CM) which is located at the customer premise, and Cable Modem Termination System (CMTS), which is located at the headend of service providers and used to aggregate traffic from multiple Cable Modems and then communicate with the backbone network.
		DOCSIS specifies modulation schemes and the protocol for exchanging bidirectional signals between these two components over cable.
		DOCSIS is defined by CableLabs (http://www.cablemodem.com/) and approved by ITU.
	www.javvin.com /protocolDOCSIS.html (491 words)

	DOCSIS - Data Over Cable Service Interface Specification
		DOCSIS is currently at version 1.0, with version 1.1 being prepared for release sometime early next year.
		DOCSIS 3.0 and the M-CMTS allow VOD Edge QAM channels, with minor modifications, to be alternatively employed as DOCSIS downstream data channels.
		DOCSIS 1.x and 2.0 make the assumption that a single downstream channel is associated with an upstream channel (although that downstream channel may be shared among many upstream channels).
	www.infocellar.com /cable-dsl/DOCSIS.htm (1244 words)

	Inside DOCSIS 3.0 - 10/1/2006 - CED - CA6375646 (Site not responding. Last check: )
		Because it marked the day that the first three specs for the all-important DOCSIS 3.0 platform were publicly issued, August 4, 2006 will likely go down as a key date in the evolution of cable technology.
		Although what was once termed "DOCSIS 2.0b" is now all but deadand buried as an "official" project, there is still much interest for products that support a subset of the DOCSIS 3.0 feature set–particularly channel bonding and IPv6.
		For a full DOCSIS 3.0 product, Conexant is targeting mid-2008, though that timeframe will be driven by how quickly its set-top partners want to drive the technology in the U.S. market.
	www.cedmagazine.com /article/CA6375646.html (3022 words)

	DOCSIS - Wikipedia, the free encyclopedia
		Because of increased demand for symmetric, real-time services such as IP telephony, DOCSIS was again revised to enhance upstream transmission speeds and Quality of Service capabilities; this revision - DOCSIS 2.0 - was released in January 2002.
		Channel Width: DOCSIS 1.0/1.1 specified channel widths between 200 kHz and 3.2 MHz.
		Most DOCSIS cable modems have caps (restrictions) on upload and download rates.
	en.wikipedia.org /wiki/DOCSIS (1846 words)

	Next-Gen Modem Standard Crucial To Cable Plans - Broadband Week 01/08/2001 (Site not responding. Last check: )
		Last month, DOCSIS 1.1-based gear--cable modems and cable modem termination systems (CMTSes)--were put to the test for the first time by Cable Television Laboratories Inc. during its 16th DOCSIS certification wave.
		No one knows when the arduous CableLabs testing process will yield DOCSIS 1.1 certified and qualified equipment, but the industry is ready to embrace the new protocol.
		MSOs will implement DOCSIS 1.1 gear, when it becomes available (generally expected to be the middle of next year), differently based on marketing and business plans.
	www.broadbandweek.com /news/010108/print/010108_cable_docsis.htm (781 words)

	Twelve More DOCSIS® 2.0 Modems Gain CableLabs® Certified Status
		DOCSIS 2.0 modems from Ambit, Arris, Castlenet, Com21, Hitron, LinkSys, Motorola, Scientific-Atlanta, Terayon, Thomson, and Toshiba were certified.
		Fourteen modems received DOCSIS 1.1 certification in Wave 25 from Arris, Correlant, D-Link, Hitron, Kinpo, LinkSys, Motorola, Netgear, SMC Networks, Terayon, and Thomson; and one CMTS from Cisco.
		Receiving DOCSIS 1.0 certification in Wave 25 were DX Antenna, Thomson and Toshiba.
	www.cablelabs.com /news/pr/2003/03_pr_docsis_cw25_041003.html (804 words)

	DOCSIS definition - isp.webopedia.com - The Glossary for Internet Service Providers
		With certification from CableLabs, manufacturers will be able to produce cable modems for retail, so consumers no longer have to depend on leased cable modems from their cable providers.
		Other devices that recognize and support the DOCSIS standard include HDTVs and Web enabled set-top boxes for regular televisions.
		DOCSIS specifies downstream traffic transfer rates between 27 and 36 Mbps over a radio frequency (RF) path in the 50 MHz to 750+ MHz range, and upstream traffic tranfer rates between 320 Kbps and 10 Mbps over a RF path between 5 and 42 MHz.
	isp.webopedia.com /TERM/D/DOCSIS.html (243 words)

	DocsDiag - DOCSIS cable modem diagnostics
		DOCSIS cable modems have two possible IP addresses that can be used with
		RFC 2670 (DOCSIS RF Interface MIB) from http://www.ietf.org/rfc/rfc2670.txt.
		This recipe can be used with any brand of DOCSIS cable modem (unless the cable operator has prevented use of SNMP).
	homepage.ntlworld.com /robin.d.h.walker/docsdiag (5876 words)

	DOCSIS
		Cable operators and CableLabs require interoperability among DOCSIS modems.
		While no CableLabs member company will be required to purchase DOCSIS modems, it is expected that the majority of modems purchased will be DOCSIS certified.
		DOCSIS offers consumers a low-cost way to get a broadband connection to the Internet so that they can take advantage of the tremendous potential of the web without investing a lot of time or money.
	www.cablemodem.com (265 words)

	Cisco - Cable DOCSIS 1.1 FAQ
		DOCSIS 1.1 also has improved MAC framing features, improved provisioning, and authorization with advanced Baseline Privacy Interface Plus (BPI+) features.
		The upstream receive driver is now capable of restoring headers suppressed by cable modems, and the downstream driver is capable of suppressing specific fields in packet header before forwarding frame to the cable modem.
		Yes, DOCSIS 1.0 compliant cable modems work in a DOCSIS 1.1 environment, as DOCSIS 1.1 is backwards compatible with DOCSIS 1.0 and DOCSIS 1.0+.
	www.cisco.com /warp/public/109/cable_faq_docsis11.shtml (1162 words)

Try your search on: Qwika (all wikis)