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Topic: Cable modem termination system


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In the News (Fri 14 Dec 18)

  
  Cable modem termination system - Wikipedia, the free encyclopedia
A cable modem termination system or CMTS is equipment typically found in a cable company's headend and is used to provide high speed data services, such as Cable Internet or Voice over IP, to cable subscribers.
Traffic destined for the cable modem from the Internet, known as downstream traffic, is carried in IP packets encapsulated in MPEG packets.
Upstream data (data from cable modems to the headend or Internet) is carried in Ethernet frames modulated with Quadrature Phase Shift Keying.
en.wikipedia.org /wiki/CMTS   (550 words)

  
 DSL vs Cable modem
Cable modems, which allow users to connect using the cable television network, seem to be first out of the gate with broader availability and lower costs with some concern about the security issues.
Cable modems are designed to take advantage of the "broadband" cable infrastructure enabling peak connection speeds over 100 times faster than traditional dial-up connections.
Because some cable networks are suited for broadcast television services, cable modems may use either a standard telephone line or a QPSK/16 QAM modem over a two-way cable system to transmit data upstream from a user location to the network.
www.cs.ndsu.nodak.edu /~mrehman/mp/assignment2/cableanddsl.html   (11969 words)

  
 cable modem termination system - a Whatis.com definition - see also: CMTS
A cable modem termination system (CMTS) is a component that exchanges digital signals with cable modems on a cable network.
A data service is delivered to a subscriber through channels in a coaxial cable or optical fiber cable to a cable modem installed externally or internally to a subscriber's computer or television set.
One television channel is used for upstream signals from the cable modem to the CMTS, and another channel is used for downstream signals from the CMTS to the cable modem.
searchnetworking.techtarget.com /sDefinition/0,,sid7_gci548418,00.html   (252 words)

  
 AusCERT - ESB-2002.286 -- Cisco Security Advisory -- Cable Modem Termination System Authentication Bypass
The first issue involves cable modems not manufactured by Cisco that allow a configuration file to be downloaded from an interface that is not connected to the network of the cable modem's service provider.
The cable shared-secret command in Cisco IOS Software configures a password that is included in the MD5 hash that produces the MIC; without the password, it is computationally infeasible to produce the correct matching MIC, and the cable modem is prevented from registering with the service provider's network.
Some non-Cisco cable modems may be running older versions of software that save a local copy of the configuration information and use that cached copy at registration time instead of obtaining the actual file from a TFTP server.
www.auscert.org.au /render.html?it=2138   (2449 words)

  
 What is CMTS? - A Word Definition From the Webopedia Computer Dictionary   (Site not responding. Last check: 2007-10-15)
Short for cable modem termination system, a system of devices located in the cable head-end that allows cable television operators to offer high-speed Internet access to home computers.
The CMTS sends and receives digital cable modem signals on a cable network, receiving signals sent upstream from a user's cable modem, converting the signals into IP packets and routing the signals to an Internet Service Provide for connection to the Internet.
Cable modems cannot communicate directly with each other; they must communicate by channeling their signals through the CMTS.
www.webopedia.com /TERM/C/CMTS.html   (141 words)

  
 Cable Modem Termination System
Another benefit of the cable modem for Internet access is that, unlike ADSL, its performance doesn't depend on distance from the central cable office.
On the upstream side, the burst modulator in cable modems is programmed with the distance from the head-end, and provides the proper signal strength for accurate transmission.
IDC predicts that the total number of households connected via cable modem will grow to nearly 9 million by 2003.
ganges.cs.tcd.ie /undergrad/4ba2.01/group6/CMTS.html   (449 words)

  
 Cisco CMTS Feature Guide - DHCP, ToD, and TFTP Services for the Cisco Cable Modem Termination System  [Cisco ...
Although cable modems do not need to successfully complete the ToD request before coming online, this allows them to add accurate timestamps to their event logs so that these logs are coordinated to the clock used on the CMTS.
This allows the cable modems and CPE devices to accurately timestamp their Simple Network Management Protocol (SNMP) messages and error log entries, as well as ensure that all of the system clocks on the cable network are synchronized to the same system time.
This is because BPI+ authorization requires that the CMTS and cable modem verify the timestamps on the digital certificates being used for authentication.
www.ciscostadium.com /en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a008019b579.html   (7219 words)

  
 The educational encyclopedia, ADSL and cable modems   (Site not responding. Last check: 2007-10-15)
Cable modem termination system a cable modem termination system (CMTS) is a component that exchanges digital signals with cable modems on a cable network
Cable modem theory cable modem is quite new and refers to a modem that operates over the ordinary cable TV network cables
Modem sharing If you do not have permission to connect more than one PC, or if you try to connect more than you have permission to connect, you have to use a 'Proxy or NAT translation'.
users.telenet.be /educypedia/computer/modemadsl.htm   (433 words)

  
 cable modem termination system   (Site not responding. Last check: 2007-10-15)
Intel Cable Modem Termination System Cable modem termination system CMTS is the central device providing a single switching solution for voice, data, and video for multi-service operators.
Howstuffworks "How Cable Modems Work" Cable Modem Termination System At the cable provider's head-end, the CMTS provides many of the same functions provided by the DSLAM in a DSL system.
CMTS - Cable Modem Termination System A cable modem termination system, such as a router or a bridge, - Cable Modem Termination Systems.
www.cablemodemoutlook.info /cable-modem-termination-system.php   (566 words)

  
 Definition of Cable modem
The Smartmodem was a simple 300 bit/s modem using the Bell 103 signaling standards, but attac...
1:...ecommunication]], a '''narrowband modem''' is a [[modem]] whose modulated [[output]] [[signal]] has an es...
Ribbon cables are common connectors for internal peripherals i...
www.wordiq.com /search/Cable_modem.html   (861 words)

  
 CABLE MODEM   (Site not responding. Last check: 2007-10-15)
A CAT 5 cable connects the cable modem to an internal.
Cable Modem adalah alat yang memungkinkan akses data dengan kecepatan.
Answer: A cable modem is a new type of modem that hooks up your computer to a local cable TV line and provides internet access.
cable.somee.biz /index1.aspx   (383 words)

  
 Cambridge Telcom Report: 3Com Develops EuroDOCSIS-Compliant Cable Modem Termination System; Company to Demonstrate ...
Cable operators in Europe and Asia will be able to deploy the 3Com EuroDOCSIS CMTS solution and infuse their network infrastructures with additional revenue streams by offering data-over-cable services that take advantage of maximum bandwidth specifications outlined by the EuroDOCSIS standard.
EuroDOCSIS specifications allow cable operators to deploy standards-based CMTS solutions with approximately 33% more bandwidth than is typically configured in DOCSIS-compliant systems.
As part of 3Com's CommWorks architecture for service providers, the 3Com CMTS is scalable and flexible, allowing cable operators to incrementally expand the system to meet increasing demand while reducing capital expenses.
www.findarticles.com /p/articles/mi_m0BFP/is_2000_May_15/ai_62086454   (885 words)

  
 News @ Cisco: Cisco Announces First Intelligent Broadband Edge Platform For Advanced Cable Data Services
Cable-Tec EXPO, Philadelphia, PA + San Jose, CA - May 12, 2003 - Cisco Systems, Inc. today unveiled market-leading innovations for its Cable Modem Termination System (CMTS) routers for Multiple System Operators (MSOs) to capitalize on the full potential of the cable spectrum and the opportunity provided by advanced data and voice services.
Cable operators can now efficiently deploy tiered services while effectively managing peer-to-peer traffic, evolving the CMTS into the Intelligent Broadband Edge capable of delivering highly competitive service bundles to both the consumer and business marketplaces.
Cisco, Cisco Systems, and the Cisco Systems logo are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.
newsroom.cisco.com /dlls/prod_051203c.html   (574 words)

  
 arris cable modem   (Site not responding. Last check: 2007-10-15)
Cable Modem Installation and Troubleshooting: Arris 402 - Time - Arris 402 Installation Guides.
Arris bows Touchstone cable modem - Broadband Week 08/19/2002 Arris said it has launched the Touchstone Cable Modem 300, a device based on DOCSIS 1.1 specifications.
CMTS (Cable Modem Termination System) Definition This is also known as Cable Modem Termination System.
www.cablemodemoutlook.info /arris-cable-modem.php   (652 words)

  
 CMTS - Cable Modem Termination System
A cable modem termination system, such as a router or a bridge, typically located at the cable headend.
A CMTS is a component that exchanges digital signals with cable modems on a cable network.
When a CMTS sends signals to a cable modem, it converts them into Internet Protocol (IP) and sends the signal to a router for transmission over the Internet.
www.auditmypc.com /acronym/CMTS.asp   (197 words)

  
 Cadant Uses APEX 20KE Devices to Achieve Wire-Speed Processing in Cable Modem Termination System   (Site not responding. Last check: 2007-10-15)
Key challenges in supporting broadband cable services are providing differentiated service, accommodating new users and new applications, and maintaining a reliable, high-performance service.
To meet these challenges, the major cable system companies, referred to as multiple system operators (MSOs), have implemented a standard technical specification called the data over cable service interface specification (DOCSISTM 1.1), which increasingly requires quality of service (QoS) features and high-reliability, high-availability infrastructures, including new-generation cable modem termination systems (CMTSs).
A combination of programmable logic and a high-performance processor satisfies these requirements, allowing cable modem manufacturers such as Cadant, Inc. the option to easily modify their product designs and the products themselves, if needed, to meet changing conditions.
www.altera.com /corporate/cust_successes/customer/cst-cadant.html   (1044 words)

  
 Cisco Security Advisory: Cable Modem Termination System Authentication Bypass   (Site not responding. Last check: 2007-10-15)
The two issues described in this document affect the proper operation of cable modem systems.
MD5 is a one-way (non-invertible) hash—meaning that the input cannot be recovered from the output—and the output is considered unique for a specific input.
If the service provider has only one service profile, then the cable qos permission enforce command can be used to prevent cable modems from coming on line with a configuration containing any other service profile.
www.cisco.com /warp/public/707/cmts-MD5-bypass-pub.shtml   (2163 words)

  
 Networking Pipeline | Worldwide Broadband Cable Subscribers Skyrocketed 22% In 2004
The number of worldwide cable broadband subscribers grew at a substantial 22% clip last year, but this growth was met with a temporary drop in cable modem termination system (CMTS) sales in the first quarter of 2005, according to a new report from Infonetics Research
According to Infonetics' Cable Aggregation Hardware quarterly worldwide market share and forecast report, cable broadband subscription numbers were up 22%, reaching 41 million worldwide in 2004.
The CMTS market continues to be led by North America, which has 56% of the world's cable broadband subscribers accounting for 51% of global CMTS revenues, followed by Asia Pacific with 24% of subscribers and 20% of revenues, and Europe, the Middle East and Africa, with 16% of subscribers and a 26% revenue share.
www.networkingpipeline.com /news/163700483   (607 words)

  
 Howstuffworks "How Cable Modems Work"
At the cable provider's head-end, the CMTS provides many of the same functions provided by the DSLAM in a DSL system.
A CMTS will enable as many as 1,000 users to connect to the Internet through a single 6-MHz channel.
Since a single channel is capable of 30 to 40 megabits per second (Mbps) of total throughput, this means that users may see far better performance than is available with standard dial-up modems.
computer.howstuffworks.com /cable-modem9.htm   (232 words)

  
 CC8000 Cable Modem Termination System   (Site not responding. Last check: 2007-10-15)
The Coresma CC8000 is a fully integrated, cable modem termination system
Designed around the DOCSIS and Euro-DOCSIS standards, the CC8000 is specifically targeted at cable operators seeking a standard, scaleable and cost-effective solution for delivering Internet services over existing cable infrastructures to subscribers.
With a highly scaleable architecture, the CC8000 supports various combinations of downstream and upstream channel configurations, allowing cable operators to provide subscribers with flexible, highspeed solutions.
www.force.tv /page162.aspx   (273 words)

  
 Business Wire: Yankee Group Reports Cable Modem Termination System Vendors Have Sights Set on Cisco
The new Yankee Group Report, "CMTS Vendors Setting Their Sights on Cisco," reveals that although Cisco Systems is the dominant first-generation, cable modem termination system (CMTS) vendor in the market today, the first-generation of CMTS platforms based on the DOCSIS standard did not address the need to offer advanced services such as VoIP.
According to Broadband Access Technologies analyst Lindsay Schroth: "Cable operators have recognized that it is essential to expand both their subscriber base and service offerings to maintain profitability, and the equipment in place today will not be able to handle a large expansion of subscribers or advanced offerings."
Although the difficult economy is causing cable operators to move more slowly than anticipated with the rollout of these next generation platforms, upgrading to advanced platforms is an essential strategy for them.
findarticles.com /cf_dls/m0EIN/2002_Oct_3/92425465/p1/article.jhtml   (452 words)

  
 Juniper reaches out from the core
Juniper Networks' announcement last week that it will acquire a small cable modem termination system company indicates a desire to bolster its presence at the service-enabling edge of the IP network while the core is undergoing a bit of capacity indigestion.
PBC's CMTS system, Juniper says, will enable MSOs to deliver IP services such as voice over IP, cable modem Internet access, DVD-quality streaming video and business service-level agreements over the last-mile cable infrastructure.
Revenue opportunities at the edge, where the number of routers vastly outnumbers those in the core, are richer anyway - Cisco in the past has said that edge revenue is 15:1 that of the core.
www.networkworld.com /edge/columnists/2001/1119edge1.html   (571 words)

  
 CABLE MODEM   (Site not responding. Last check: 2007-10-15)
A cable modem is an external device that has...
This competition between cable and telephone giants is just what Congress had in mind when it passed the...
The SPEEDEX wireless cable modem system from Ohio Valley Cable is the absolute fastest way for you to...
cable.somee.net   (492 words)

  
 cable modem termination system
Cables To Go Hi-Resolution Video cable component video RCA (M) RCA (M) 50 ft shielded fl Price, Reviews and Specification.
A CMTS (Cable Modem Termination System) conceptually converts Ethernet based digital data signals to RF signals and vice versa, allowing two-way transmission...
be pointed at the cable box — not the cable modem or the...
cable.acdom.com /cable-modem-termination-system.html   (586 words)

  
 Communication Concept Deploys ADC's Cuda 12000 Cable Modem Termination System in Germany   (Site not responding. Last check: 2007-10-15)
ADC (Nasdaq:ADCT) announced that Communication Concept has deployed the Cuda(TM) 12000 Cable Modem Termination System (CMTS) for Germany's first ever Multiple-Dwelling Unit (MDU) application in the city of Leipzig in the State of Sachsen.
Communication Concept has installed the ADC Cuda CMTS as part of a Voice over Internet Protocol (VoIP) and data network that it is developing with HLkomm, a CLEC in Sachsen.
The Cuda 12000 is the world's most widely deployed carrier-class CMTS platform and provides multiple system operators (MSOs) with a highly reliable foundation for advanced residential and commercial services such as tiered data and VoIP.
www.cablemodemnews.com /publications/page679-929632.asp   (362 words)

  
 M2 Presswire: ADC's Cuda(tm) 1000 cable modem termination system delivers advanced IP services for WideOpenWest; ...   (Site not responding. Last check: 2007-10-15)
M2 Presswire: ADC's Cuda(tm) 1000 cable modem termination system delivers advanced IP services for WideOpenWest; Compact system now being deployed by MSOs worldwide.
MINNEAPOLIS - ADC (Nasdaq: ADCT; www.adc.com) today announced that it has started volume shipments of the compact Cuda 1000 Cable Modem Termination System (CMTS) to multiservice operators (MSO) in the United States and Europe, including WideOpenWest (WOW) with systems in Illinois, Michigan and Ohio.
Designed to provide advanced IP services for smaller cable systems, small regions of a large MSO's network and...
www.findarticles.com /p/articles/mi_go1633/is_200206/ai_n7055032   (233 words)

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