1194:
1186:
1235:(MAC) layer security services in its Baseline Privacy Interface specifications. DOCSIS 1.0 used the initial Baseline Privacy Interface (BPI) specification. BPI was later improved with the release of the Baseline Privacy Interface Plus (BPI+) specification used by DOCSIS 1.1 and 2.0. Most recently, a number of enhancements to the Baseline Privacy Interface were added as part of DOCSIS 3.0, and the specification was renamed "Security" (SEC).
36:
1223:, using dedicated wireless links rather than HFC network. At each subscriber premises the ordinary CM is connected to an antenna box which converts to/from microwave frequencies and transmits/receives on 10 GHz. Each customer has a dedicated link but the transmitter mast must be in line of sight (most sites are hilltop).
1151:
Note that the number of channels a cable system can support is dependent on how the cable system is set up. For example, the amount of available bandwidth in each direction, the width of the channels selected in the upstream direction, and hardware constraints limit the maximum amount of channels in
739:
Tables assume 256-QAM modulation for downstream and 64-QAM for upstream on DOCSIS 3.0, and 4096-QAM modulation for OFDM/OFDMA (first downstream/upstream methods) on DOCSIS 3.1, although real-world data rates may be lower due to variable modulation depending on SNR. Higher data rates are possible but
1216:(CPE). The CPE are connected to the cable modem, which is in turn connected through the HFC network to the CMTS. The CMTS then routes traffic between the HFC and the Internet. Using provisioning systems and through the CMTS, the cable operator exercises control over the cable modem's configuration.
695:
The first three versions of the DOCSIS standard support a downstream throughput with 256-QAM of up to 42.88 Mbit/s per 6 MHz channel (approximately 38 Mbit/s after overhead), or 55.62 Mbit/s per 8 MHz channel for EuroDOCSIS (approximately 50 Mbit/s after overhead). The
578:
EuroModem") based on ATM transmission standards. Annex C describes a variant of DOCSIS 1.1 that is designed to operate in
Japanese cable systems. The ITU-T Recommendation J.122 main body corresponds to DOCSIS 2.0, J.122 Annex F corresponds to EuroDOCSIS 2.0, and J.122 Annex J describes the Japanese
530:
standards which specify 6 MHz per channel. The wider channel bandwidth in EuroDOCSIS architectures permits more bandwidth to be allocated to the downstream data path (toward the user). EuroDOCSIS certification testing is executed by
Belgian company Excentis (formerly known as tComLabs), while
1300:
Security in the DOCSIS network is vastly improved when only business critical communications are permitted, and end user communication to the network infrastructure is denied. Successful attacks often occur when the CMTS is configured for backward compatibility with early pre-standard DOCSIS 1.1
1288:
to a customer's account with the cable service operator; and the network allows access only to a cable modem that can attest to that MAC address using a valid certificate issued via the PKI. The earlier BPI specification (ANSI/SCTE 22-2) had limited service protection because the underlying
1164:
Traditional DOCSIS upstream in North
America uses the 5–42 MHz frequency range. The 5–65 MHz range is used by EuroDOCSIS. This is known as a "low-split" or "sub-split" design, capable of a total shared capacity of ~108 Mbit/s upstream (assuming 4 SC-QAM upstream channels).
615:
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
2023:
When a computer user seeks to access the internet, the user's modem will report its MAC address to the ISP, and if the ISP recognizes the modem's MAC address as belonging to a paying subscriber, the ISP will allow the user to access the internet via the ISP's
1155:
Note that the maximum downstream bandwidth on all versions of DOCSIS depends on the version of DOCSIS used and the number of upstream channels used if DOCSIS 3.0 is used, but the upstream channel widths are independent of whether DOCSIS or EuroDOCSIS is used.
668:(TDMA) for DOCSIS 1.0/1.1 and both TDMA and S-CDMA for DOCSIS 2.0 and 3.0, with a limited use of contention for bandwidth reservation requests. In TDMA, a cable modem requests a time to transmit and the CMTS grants it an available time slot.
379:
formed the Data
Standards Subcommittee to begin work on establishing national standards for high-speed data over cable plant. July 1997: SCTE DSS voted in the affirmative on document DSS 97-2. This standard is based on the well-known
333:
Improves DOCSIS 3.1 to use the full spectrum of the cable plant (0 MHz to ~1.8 GHz) at the same time in both upstream and downstream directions. This technology enables multi-gigabit symmetrical services while retaining
632:
J.83-Annex B standard for 6 MHz channel operation, and the DVB-C modulation standard for 8 MHz (EuroDOCSIS) operation. DOCSIS 3.1 adds 16-QAM, 128-QAM, 512-QAM, 1024-QAM, 2048-QAM and 4096-QAM, with optional support of
547:(ITU-T) has approved the various versions of DOCSIS as international standards. DOCSIS 1.0 was ratified as ITU-T Recommendation J.112 Annex B (1998), but it was superseded by DOCSIS 1.1 which was ratified as ITU-T Recommendation
509:
As frequency allocation bandwidth plans differ between United States and
European CATV systems, DOCSIS standards earlier than 3.1 have been modified for use in Europe. These modifications were published under the name
696:
upstream throughput possible is 30.72 Mbit/s per 6.4 MHz channel (approximately 27 Mbit/s after overhead), or 10.24 Mbit/s per 3.2 MHz channel (approximately 9 Mbit/s after overhead).
611:
Downstream: All versions of DOCSIS earlier than 3.1 use either 6 MHz channels (e.g. North
America) or 8 MHz channels ("EuroDOCSIS"). DOCSIS 3.1 uses channel bandwidths of up to 192 MHz in the
286:
First released in
October 2013, and subsequently updated several times, the DOCSIS 3.1 suite of specifications support capacities of up to 10 Gbit/s downstream and 1 Gbit/s upstream using 4096
2083:
2078:
2073:
2068:
2063:
2058:
1284:(CAs) of the certification testers, currently Excentis (formerly known as tComLabs) for EuroDOCSIS and CableLabs for DOCSIS. Typically, the cable service operator manually adds the cable modem's
1703:
1168:
In recent years, cable operators have begun to increase the amount of bandwidth dedicated to the upstream. The two most popular options for this include a "mid-split" or "high-split".
384:
specification. The standard was also submitted to
International Telecommunication Union Telecommunications Standardization Sector (ITU-T) and has been adopted as ITU-T J.112 Annex B.
338:
with DOCSIS 3.1. CableLabs released the full specification in
October 2017. Previously branded as DOCSIS 3.1 Full Duplex, these technologies have been rebranded as part of DOCSIS 4.0.
319:, broadband provider Comcast announced in February 2016 that several cities within its footprint will have DOCSIS 3.1 availability before the end of the year. At the end of 2016,
1174:
A high-split increases the upstream frequency range to 5–204 MHz, supporting a total shared upstream capacity of ~1.5 Gbit/s (assuming 4 SC-QAM + OFDMA channels).
1171:
A mid-split increases the upstream frequency range to 5–85 MHz, supporting a total shared upstream capacity of ~450 Mbit/s (assuming 4 SC-QAM + OFDMA channels).
1268:
BPI/SEC is intended to allow cable service operators to refuse service to uncertified cable modems and unauthorized users. BPI+ strengthened service protection by adding
1238:
The intent of the BPI/SEC specifications is to describe MAC layer security services for DOCSIS CMTS to cable modem communications. BPI/SEC security goals are twofold:
1564:
2118:
640:
or 16-level QAM (16-QAM) for DOCSIS 1.x, while QPSK, 8-QAM, 16-QAM, 32-QAM, and 64-QAM are used for DOCSIS 2.0 and 3.0. DOCSIS 2.0 and 3.0 also support 128-QAM with
1845:
744:(MER). DOCSIS 3.1 was designed to support up to 8192-QAM/16,384-QAM, but only support of up through 4096-QAM is mandatory to meet the minimum DOCSIS 3.1 standards.
1523:"Active Queue Management (AQM) Based on Proportional Integral Controller Enhanced (PIE) for Data-Over-Cable Service Interface Specifications (DOCSIS) Cable Modems"
1924:
1447:
1249:
Provide cable service operators with service protection (i.e. prevent unauthorized modems and users from gaining access to the network's RF MAC services)
1769:
1992:
1177:
DOCSIS 4.0 in both full-duplex (FDX) and extended spectrum DOCSIS (ESD) configurations will support upstream speeds surpassing 5 Gbit/s.
574:
Note: While ITU-T Recommendation J.112 Annex B corresponds to DOCSIS/EuroDOCSIS 1.1, Annex A describes an earlier
European cable modem system ("
1663:
261:
Released in December 2001, DOCSIS 2.0 enhanced upstream data rates in response to increased demand for symmetric services such as IP telephony.
652:
equivalent to that of 64-QAM). DOCSIS 3.1 supports data modulations from QPSK up to 1024-QAM, with optional support for 2048-QAM and 4096-QAM.
704:
376:
1794:
544:
1731:
296:
1565:"Comcast to Introduce World's First DOCSIS 3.1-Powered Gigabit Internet Service in Atlanta, Chicago, Detroit, Miami, and Nashville"
1391:
1365:
1590:
1301:
modems. These modems were "software upgradeable in the field", but did not include valid DOCSIS or EuroDOCSIS root certificates.
272:
Released in August 2006, DOCSIS 3.0 significantly increased data rates (both upstream and downstream) and introduced support for
675:(QoS) features that help to efficiently support applications that have specific traffic requirements such as low latency, e.g.
703:
of up to 1.89 Gbit/s per 192 MHz OFDM channel. The upstream throughput possible is 0.94 Gbit/s per 96 MHz
2039:
637:
2098:
141:) is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing
686:, which enables multiple downstream and upstream channels to be used together at the same time by a single subscriber.
119:
100:
1043:
For DOCSIS 3.0, the theoretical maximum throughput for the number of bonded channels are listed in the table below.
1817:
1758:
72:
2011:
1454:
1616:
625:
288:
311:
features that will enable the cable industry to reduce its energy usage, and the DOCSIS-PIE algorithm to reduce
2108:
1206:
1198:
57:
79:
1547:
1327:
1205:
A DOCSIS architecture includes two primary components: a cable modem located at the customer premises, and a
665:
307:
inside a block spectrum that could end up being about 200 MHz wide. DOCSIS 3.1 technology also includes
723:
The 'DOCSIS 2.0 + IPv6' specification allowed support for IPv6 on DOCSIS 2.0 modems via a firmware upgrade.
323:
announced it would become the first major U.S. cable company to fully transition to the DOCSIS 3.1 platform.
1262:
1417:
1330: – International standards consortium that publishes specifications for networking over coaxial cable
2042:
This Rohde & Schwarz application note discusses the fundamental technological advances of DOCSIS 3.1.
1213:
532:
273:
381:
86:
575:
1870:
1322:
1277:
464:
Significantly increased downstream and upstream data rates, introduced support for IPv6, introduced
355:
over an HFC. In 1995, Multimedia Cable Network System (MCNS) was formed. The original partners were
1735:
1344:
1258:
356:
68:
17:
664:
DOCSIS employs a mixture of deterministic access methods for upstream transmissions, specifically
2113:
1896:
1802:
53:
46:
484:
Significantly increased downstream and upstream data rates, restructured channel specifications
2103:
1641:
1310:
741:
335:
1336: – Device or point within a network capable of creating, receiving, or transmitting data
1281:
372:
352:
146:
1232:
232:
Released in March 1997, DOCSIS 1.0 included functional elements from preceding proprietary
150:
8:
1501:
1395:
1269:
1253:
BPI/SEC is intended to prevent cable users from listening to each other. It does this by
649:
1369:
1316:
1193:
700:
672:
641:
247:
185:
1956:(Technical report). CableLabs. Physical Layer Specification. CM-SP-PHYv3.1-I19-211110.
1392:"CableLabs Selects Broadcom and Terayon to Author Advanced Modem Technology Proposals"
1967:
1681:
1333:
717:
522:
standards of 8 MHz RF channel bandwidth and North American cable TV conforms to
514:. The differences between the bandwidths exist because European cable TV conforms to
360:
213:
209:
93:
624:
Downstream: All versions of DOCSIS prior to 3.1 specify that 64-level or 256-level
308:
304:
165:
142:
1994:
Data-Over-Cable Service Interface Specifications DOCSIS 3.0 Security Specification
1185:
683:
596:
465:
292:
1219:
DOCSIS 2.0 was also used over microwave frequencies (10 GHz) in Ireland by
2000:(Technical report). CableLabs. 2006–2013. p. 87. CM-SP-SECv3.0-I15-130808.
1294:
1290:
592:
551:
Annex B (2001). Subsequently, DOCSIS 2.0 was ratified as ITU-T Recommendation
2092:
1925:"Comcast, Charter Take DOCSIS 4.0 and '10G' a Step Toward Commercial Reality"
1506:
1425:
676:
316:
189:
1273:
1243:
699:
DOCSIS 3.1 supports a downstream throughput with 4096-QAM and 25 kHz
556:
1339:
1285:
1257:
data flows between the CMTS and the cable modem. BPI and BPI+ use 56-bit
628:(64-QAM or 256-QAM) be used for modulation of downstream data, using the
535:
receives "certification", while CMTS equipment receives "qualification".
348:
312:
233:
161:
1818:"IPv6 and Cable: How Cable is managing the transition from IPv4 to IPv6"
555:. Most recently, DOCSIS 3.0 was ratified as ITU-T Recommendation J.222 (
552:
548:
145:(CATV) system. It is used by many cable television operators to provide
1254:
568:
564:
560:
300:
1522:
1265:(AES). The AES key, however, is protected only by a 1024-bit RSA key.
1448:"Cable Modem Termination System–Network Side Interface Specification"
1366:"Five Modem Makers' Systems Considered for Cable Data Specifications"
588:
157:
35:
2045:
368:
320:
291:. The new specifications eliminated 6 MHz and 8 MHz wide
197:
181:
169:
1895:
Howald, Robert; Wolcott, Larry; Ellis, Leslie (October 11, 2021).
531:
DOCSIS certification testing is executed by CableLabs. Typically,
1479:
1220:
740:
require higher order QAM schemes which require higher downstream
671:
For DOCSIS 1.1 and above, the data layer also includes extensive
364:
205:
201:
177:
27:
Standard for computer networking over a cable television system
2012:"United States v. Ryan Harris a.k.a. DerEngel and TCNISO, Inc"
1732:"CableLabs Issues DOCSIS 3.0 Specifications Enabling 160 Mbps"
645:
629:
519:
193:
173:
1418:"Data-over-Cable Service Interface Specifications (DOCSIS)"
727:
527:
523:
295:
and instead use narrower (25 kHz or 50 kHz wide)
1347: – Bundles of wires used for transmitting information
515:
579:
variant of DOCSIS 2.0 (analogous to Annex C of J.112).
498:
Significantly increased upstream rates from DOCSIS 3.1
1617:"CableLabs Completes Full Duplex DOCSIS Specification"
1212:
The customer PC and associated peripherals are termed
1261:(DES) encryption, while SEC adds support for 128-bit
796:
Minimum number of channels that hardware must support
784:
Minimum number of channels that hardware must support
1548:"Active Queue Management in DOCSIS 3.x Cable Modems"
1898:
Execute the Upstream Makeover without Leaving Scars
60:. Unsourced material may be challenged and removed.
1894:
1636:
1634:
1440:
587:DOCSIS provides a variety of options available at
250:(QoS) mechanisms that were outlined in DOCSIS 1.0.
1704:"Understanding Data Throughput in a DOCSIS World"
1472:
2119:Telecommunications-related introductions in 1997
2090:
1726:
1724:
1682:"Recommendation J.83 (1997) Amendment 1 (11/06)"
246:Released in April 1999, DOCSIS 1.1 standardized
1631:
1368:. CableLabs. September 23, 1996. Archived from
135:Data Over Cable Service Interface Specification
1890:
1888:
1394:. CableLabs. November 13, 1998. Archived from
1313: – Communications technical specification
1948:
1946:
1721:
545:ITU Telecommunication Standardization Sector
1922:
1885:
1871:"Band Splits 101: Splitting Our Way to 10G"
1591:"Mediacom Going All DOCSIS 3.1 by Year-End"
1027:Dependent on OFDMA channel bandwidth in MHz
433:Added VOIP capabilities and QoS mechanisms
1943:
982:Dependent on OFDM channel bandwidth in MHz
969:Dependent on OFDM channel bandwidth in MHz
748:Maximum raw throughput including overhead
538:
297:orthogonal frequency-division multiplexing
120:Learn how and when to remove this message
1192:
1184:
504:
14:
2091:
1815:
1614:
1502:"DOCSIS 3.1 Targets 10-Gig Downstream"
160:and contributing companies, including
793:Minimum selectable number of channels
781:Minimum selectable number of channels
1923:Baumgartner, Jeff (April 29, 2022).
1775:from the original on August 15, 2017
1756:
1520:
1319: – Telecommunication technology
1209:(CMTS) located at the CATV headend.
58:adding citations to reliable sources
29:
156:DOCSIS was originally developed by
24:
1759:"DOCSIS What's Next - An Overview"
1615:Hamzeh, Belal (October 11, 2017).
658:
25:
2130:
2052:
2033:
726:DOCSIS 3.0 added management over
716:DOCSIS modems are managed via an
602:
710:
375:joined the group. In June 1996,
34:
2004:
1985:
1960:
1916:
1863:
1838:
1809:
1787:
1750:
1696:
1674:
1656:
1608:
1583:
1242:Provide cable modem users with
770:EuroDOCSIS throughput in Mbit/s
734:
45:needs additional citations for
1825:Rocky Mountain IPV6 Task Force
1557:
1540:
1514:
1494:
1410:
1384:
1358:
1207:cable modem termination system
1199:cable modem termination system
13:
1:
1968:"Wireless Broadband Internet"
1873:. CableLabs. December 9, 2021
1816:Torbet, Dan (April 9, 2008).
1351:
1328:Multimedia over Coax Alliance
690:
666:time-division multiple access
636:Upstream: Upstream data uses
447:Enhanced upstream data rates
342:
1272:based authentication to its
1263:Advanced Encryption Standard
1180:
589:Open Systems Interconnection
399:Maximum downstream capacity
7:
2099:Cable television technology
1734:. CableLabs. Archived from
1453:. CableLabs. Archived from
1304:
1226:
1214:customer-premises equipment
1159:
1045:
802:Maximum number of channels
799:Selected number of channels
787:Selected number of channels
767:DOCSIS throughput in Mbit/s
746:
582:
533:customer premises equipment
351:was chartered to develop a
274:Internet Protocol version 6
219:
10:
2135:
790:Maximum number of channels
402:Maximum upstream capacity
388:DOCSIS version comparison
2084:DOCSIS 4.0 specifications
2079:DOCSIS 3.1 specifications
2074:DOCSIS 3.0 specifications
2069:DOCSIS 2.0 specifications
2064:DOCSIS 1.1 specifications
2059:DOCSIS 1.0 specifications
1323:List of device bandwidths
1278:public key infrastructure
1130:
1085:
1054:
1051:
1048:
775:
772:
769:
766:
763:
758:
755:
752:
591:(OSI) layers 1 and 2—the
477:
418:
415:
1521:Greg, White; Rong, Pan.
1345:Telecommunications cable
1297:the user's cable modem.
1280:(PKI), based on digital
1259:Data Encryption Standard
1246:across the cable network
1189:A DOCSIS 3.0 cable modem
648:mode (with an effective
642:trellis coded modulation
1850:BroadbandTechReport.com
1642:"DOCSIS 4.0 Technology"
1282:certificate authorities
539:International standards
1931:. Louisville, Colorado
1904:. Cable-Tec Expo. SCTE
1795:"DOCSIS 2.0 Interface"
1311:DOCSIS Set-top Gateway
1202:
1190:
742:modulation error ratio
336:backward compatibility
153:(HFC) infrastructure.
2109:ITU-T recommendations
1805:on September 4, 2009.
1196:
1188:
1052:Downstream throughput
776:Throughput in Mbit/s
773:Channel configuration
764:Channel configuration
147:cable Internet access
2048:(2009) at Volpe Firm
1738:on November 20, 2010
1233:media access control
1055:Upstream throughput
682:DOCSIS 3.0 features
505:European alternative
353:media access control
151:hybrid fiber-coaxial
149:over their existing
54:improve this article
1668:Rohde & Schwarz
1664:"DOCSIS Technology"
1422:Community.Cisco.com
1398:on October 11, 2013
1372:on October 21, 2002
1270:digital certificate
1037: × 30.72
929: × 30.72
749:
650:spectral efficiency
633:8192-QAM/16384-QAM.
389:
1571:. February 2, 2016
1460:on August 17, 2016
1317:Ethernet over coax
1276:protocol, using a
1203:
1191:
1049:Number of channels
992: × 55.62
979: × 42.88
948:32 SC-QAM channels
909: × 55.62
903: × 42.88
747:
701:subcarrier spacing
673:quality-of-service
387:
367:, and Cox. Later,
248:quality of service
1972:Ogier Electronics
1766:SCTE-SanDiego.org
1334:Node (networking)
1293:protocol did not
1149:
1148:
1041:
1040:
1006:8 SC-QAM channels
718:Internet Protocol
502:
501:
369:Continental Cable
361:Time Warner Cable
214:Texas Instruments
210:Time Warner Cable
130:
129:
122:
104:
16:(Redirected from
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1801:. Archived from
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1757:Sinclair, Dave.
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1480:"Specifications"
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1362:
1231:DOCSIS includes
1152:each direction.
1145:1779.712 Mbit/s
1046:
1002:2 OFDMA channels
999:1 SC-QAM channel
941:1 SC-QAM channel
750:
597:data link layers
481:1–2 Gbit/s
461:200 Mbit/s
422:Initial release
396:Production date
390:
386:
330:
329:
309:power-management
283:
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269:(abbreviated D3)
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258:(abbreviated D2)
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166:BigBand Networks
143:cable television
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2046:DOCSIS Tutorial
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1684:. November 2006
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1515:
1500:
1499:
1495:
1485:
1483:
1478:
1477:
1473:
1463:
1461:
1457:
1450:
1446:
1445:
1441:
1431:
1429:
1428:. March 1, 2019
1416:
1415:
1411:
1401:
1399:
1390:
1389:
1385:
1375:
1373:
1364:
1363:
1359:
1354:
1307:
1229:
1183:
1162:
1128:1334.784 Mbit/s
1035:
1030:
1028:
1020:
1015:
1013:
1005:
1003:
998:
996:
995:1 OFDMA channel
990:
985:
983:
977:
972:
970:
962:
957:
955:
947:
945:
944:2 OFDM channels
940:
938:
937:1 OFDM channel
737:
713:
693:
684:channel bonding
661:
659:Data link layer
608:Channel width:
605:
585:
541:
507:
478:10 Gbit/s
466:channel bonding
444:30 Mbit/s
419:10 Mbit/s
416:40 Mbit/s
393:DOCSIS version
345:
327:
326:
303:; these can be
293:channel spacing
280:
279:
265:
264:
254:
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240:
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226:
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222:
126:
115:
109:
106:
63:
61:
51:
39:
28:
23:
22:
15:
12:
11:
5:
2132:
2122:
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2116:
2114:Link protocols
2111:
2106:
2101:
2087:
2086:
2081:
2076:
2071:
2066:
2061:
2054:
2053:Specifications
2051:
2050:
2049:
2043:
2035:
2034:External links
2032:
2029:
2028:
2003:
1984:
1959:
1942:
1915:
1884:
1862:
1837:
1808:
1799:CableModem.com
1786:
1749:
1720:
1695:
1673:
1655:
1630:
1607:
1582:
1556:
1539:
1527:Tools.IETF.org
1513:
1493:
1471:
1439:
1409:
1383:
1356:
1355:
1353:
1350:
1349:
1348:
1342:
1337:
1331:
1325:
1320:
1314:
1306:
1303:
1291:key management
1251:
1250:
1247:
1228:
1225:
1182:
1179:
1161:
1158:
1147:
1146:
1143:
1142:1372.16 Mbit/s
1140:
1137:
1133:
1132:
1131:245.76 Mbit/s
1129:
1126:
1125:1029.12 Mbit/s
1123:
1120:
1116:
1115:
1114:889.92 Mbit/s
1112:
1109:
1106:
1102:
1101:
1100:444.96 Mbit/s
1098:
1095:
1092:
1088:
1087:
1086:122.88 Mbit/s
1084:
1081:
1078:
1075:
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1070:
1067:
1064:
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1057:
1056:
1053:
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1039:
1038:
1033:
1025:
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1007:
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797:
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680:
669:
660:
657:
656:
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634:
619:
618:
617:
613:
604:
603:Physical layer
601:
584:
581:
540:
537:
506:
503:
500:
499:
496:
495:6 Gbit/s
493:
490:
486:
485:
482:
479:
476:
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469:
468:
462:
459:
458:1 Gbit/s
456:
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42:
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33:
26:
9:
6:
4:
3:
2:
2131:
2120:
2117:
2115:
2112:
2110:
2107:
2105:
2104:Digital cable
2102:
2100:
2097:
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2085:
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2080:
2077:
2075:
2072:
2070:
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2025:
2021:. p. 2.
2020:
2013:
2007:
1996:
1995:
1988:
1973:
1969:
1963:
1955:
1949:
1947:
1930:
1929:Light Reading
1926:
1919:
1900:
1899:
1891:
1889:
1872:
1866:
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1819:
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1596:
1595:Light Reading
1592:
1586:
1570:
1566:
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1549:
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1524:
1517:
1509:
1508:
1507:Light Reading
1503:
1497:
1481:
1475:
1456:
1449:
1443:
1427:
1426:Cisco Systems
1423:
1419:
1413:
1397:
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1357:
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1153:
1144:
1141:
1138:
1135:
1134:
1127:
1124:
1121:
1118:
1117:
1113:
1111:686.08 Mbit/s
1110:
1107:
1104:
1103:
1099:
1097:343.04 Mbit/s
1096:
1093:
1090:
1089:
1083:222.48 Mbit/s
1082:
1080:171.52 Mbit/s
1079:
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1072:
1068:
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827:
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795:
792:
789:
786:
783:
780:
779:
762:
751:
745:
743:
729:
725:
722:
720:(IP) address.
719:
715:
714:
711:Network layer
708:
706:
702:
697:
685:
681:
678:
677:voice over IP
674:
670:
667:
663:
662:
651:
647:
643:
639:
635:
631:
627:
623:
622:
620:
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572:
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383:
378:
374:
370:
366:
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358:
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337:
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325:
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317:United States
314:
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199:
195:
191:
187:
184:, Correlant,
183:
179:
175:
171:
167:
163:
159:
154:
152:
148:
144:
140:
136:
132:
124:
121:
113:
110:November 2021
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: –
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
2022:
2018:
2006:
1993:
1987:
1975:. Retrieved
1971:
1962:
1953:
1933:. Retrieved
1928:
1918:
1906:. Retrieved
1897:
1875:. Retrieved
1865:
1853:. Retrieved
1849:
1840:
1830:February 12,
1828:. Retrieved
1824:
1811:
1803:the original
1798:
1789:
1777:. Retrieved
1765:
1752:
1740:. Retrieved
1736:the original
1713:February 21,
1711:. Retrieved
1707:
1698:
1686:. Retrieved
1676:
1667:
1658:
1646:. Retrieved
1621:. Retrieved
1610:
1598:. Retrieved
1594:
1585:
1575:February 15,
1573:. Retrieved
1568:
1559:
1553:. CableLabs.
1542:
1530:. Retrieved
1526:
1516:
1505:
1496:
1484:. Retrieved
1474:
1462:. Retrieved
1455:the original
1442:
1430:. Retrieved
1421:
1412:
1400:. Retrieved
1396:the original
1386:
1374:. Retrieved
1370:the original
1360:
1299:
1295:authenticate
1274:key exchange
1267:
1252:
1244:data privacy
1237:
1230:
1218:
1211:
1204:
1176:
1173:
1170:
1167:
1163:
1154:
1150:
1042:
1031:
1016:
1009:
986:
973:
958:
951:
926:
918:
906:
900:
892:
738:
698:
694:
621:Modulation:
586:
573:
542:
511:
508:
346:
234:cable modems
155:
138:
134:
133:
131:
116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
1977:December 5,
1846:"StackPath"
1742:December 2,
1644:. CableLabs
1619:. CableLabs
1600:December 2,
1486:December 2,
1482:. CableLabs
1340:PacketCable
1286:MAC address
1069:EuroDOCSIS
1024:Not defined
966:Not defined
923:Not defined
897:Not defined
612:downstream.
313:bufferbloat
301:subcarriers
2093:Categories
2040:DOCSIS 3.1
1954:DOCSIS 3.1
1352:References
1255:encrypting
1060:Downstream
756:Downstream
735:Throughput
691:Throughput
512:EuroDOCSIS
343:Comparison
328:DOCSIS 4.0
281:DOCSIS 3.1
266:DOCSIS 3.0
255:DOCSIS 2.0
241:DOCSIS 1.1
227:DOCSIS 1.0
80:newspapers
1532:April 12,
1432:April 15,
1402:April 15,
1376:April 15,
1181:Equipment
759:Upstream
707:channel.
616:upstream.
405:Features
347:In 1994,
315:. In the
158:CableLabs
2024:network.
1935:June 26,
1908:June 26,
1877:June 25,
1855:June 25,
1779:March 6,
1770:Archived
1688:June 20,
1648:March 7,
1623:June 17,
1464:July 27,
1305:See also
1227:Security
1160:Upstream
1063:Upstream
593:physical
583:Features
321:Mediacom
220:Versions
198:Motorola
190:Harmonic
182:Conexant
170:Broadcom
69:"DOCSIS"
18:DOCSIS 3
1221:Digiweb
753:Version
569:J.222.3
565:J.222.2
561:J.222.1
557:J.222.0
365:Comcast
299:(OFDM)
276:(IPv6).
206:Terayon
202:Netgear
178:Comcast
94:scholar
1201:(CMTS)
1066:DOCSIS
878:30.72
840:10.24
646:S-CDMA
382:DOCSIS
373:Rogers
349:802.14
305:bonded
212:, and
139:DOCSIS
96:
89:
82:
75:
67:
2019:Wired
2015:(PDF)
1998:(PDF)
1902:(PDF)
1821:(PDF)
1773:(PDF)
1762:(PDF)
1708:Cisco
1551:(PDF)
1458:(PDF)
1451:(PDF)
863:55.62
860:42.88
825:55.62
822:42.88
705:OFDMA
630:ITU-T
553:J.122
549:J.112
520:DVB-C
492:2017
475:2013
455:2006
441:2002
430:2001
413:1997
194:Intel
174:Cisco
162:Arris
101:JSTOR
87:books
1979:2023
1937:2022
1910:2022
1879:2022
1857:2022
1832:2015
1781:2023
1744:2017
1715:2024
1690:2013
1650:2023
1625:2019
1602:2017
1577:2016
1534:2021
1488:2017
1466:2016
1434:2023
1404:2023
1378:2023
1029:plus
984:plus
971:plus
728:IPv6
638:QPSK
595:and
543:The
528:ATSC
524:NTSC
489:4.0
472:3.1
452:3.0
438:2.0
427:1.1
410:1.0
377:SCTE
371:and
73:news
1004:and
946:and
934:3.1
883:3.0
845:2.0
807:1.x
644:in
626:QAM
576:DVB
571:).
516:PAL
357:TCI
289:QAM
186:Cox
56:by
2095::
2017:.
1970:.
1945:^
1927:.
1887:^
1848:.
1823:.
1797:.
1768:.
1764:.
1723:^
1706:.
1666:.
1633:^
1593:.
1567:.
1525:.
1504:.
1424:.
1420:.
1197:A
1136:32
1119:24
1105:16
997:or
939:or
599:.
567:,
563:,
559:,
363:,
359:,
216:.
208:,
204:,
200:,
196:,
192:,
188:,
180:,
176:,
172:,
168:,
164:,
1981:.
1939:.
1912:.
1881:.
1859:.
1834:.
1783:.
1746:.
1717:.
1692:.
1670:.
1652:.
1627:.
1604:.
1579:.
1536:.
1510:.
1490:.
1468:.
1436:.
1406:.
1380:.
1139:8
1122:8
1108:4
1094:4
1091:8
1077:4
1074:4
1034:2
1032:n
1019:2
1017:n
1012:1
1010:n
989:2
987:m
976:2
974:m
961:2
959:m
954:1
952:m
927:n
919:n
915:4
912:1
907:m
901:m
893:m
889:4
886:1
875:1
872:1
869:1
866:1
857:1
854:1
851:1
848:1
837:1
834:1
831:1
828:1
819:1
816:1
813:1
810:1
730:.
679:.
526:/
518:/
236:.
137:(
123:)
117:(
112:)
108:(
98:·
91:·
84:·
77:·
50:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
