{{위키데이터 속성 추적}}
'''DOCSIS'''(Data Over Cable Service Interface Specification)는 기존의 [[케이블 텔레비전]](CATV) 시스템에 고대역 데이터 전송의 추가를 허용하는 국제 통신 표준이다. 기존 [[광동축 혼합망]](HFC) 인프라에 케이블 인터넷 접속을 제공하기 위해 수많은 케이블 TV 운용사에 의해 사용된다.

== 역사 ==
DOCSIS는 [[케이블랩스]], 그리고 [[애리스 인터내셔널|애리스]], [[빅밴드 네트웍스]], [[브로드컴]], [[시스코 시스템즈|시스코]], [[컴캐스트]], [[Conexant]], Correlant, [[콕스 커뮤니케이션즈|콕스]], [[하모닉]], [[인텔]], [[모토로라]], [[넷기어]], [[테라욘]], [[타임 워너 케이블]], [[텍사스 인스트루먼트]] 등 일부 기업들이 처음 개발했다.<ref>{{웹 인용|title=Five Modem Makers' Systems Considered for Cable Data Specifications |url=http://www.cablelabs.com/news/pr/1996/1996_09_23.html |archive-url=https://web.archive.org/web/20021021205140/http://www.cablelabs.com/news/pr/1996/1996_09_23.html |website=CableLabs.com |publisher=CableLabs |date=September 23, 1996 |archive-date=October 21, 2002 |access-date=November 24, 2021 }}</ref><ref>{{웹 인용|title=CableLabs Selects Broadcom and Terayon to Author Advanced Modem Technology Proposals |url=https://www.cablelabs.com/news/pr/1998/1998_11_13.html |archive-url=https://web.archive.org/web/20131011052940/http://www.cablelabs.com/news/pr/1998/1998_11_13.html |website=CableLabs.com |publisher=CableLabs |date=November 13, 1998 |archive-date=October 11, 2013 |access-date=November 24, 2021 }}</ref><ref>{{웹 인용|title=Data-over-Cable Service Interface Specifications (DOCSIS) |url=https://community.cisco.com/t5/networking-documents/docsis/ta-p/3115673 |website=Community.Cisco.com |publisher=[[Cisco Systems]] |date=March 1, 2019 |access-date=November 24, 2021 }}</ref>

== 버전 ==
=== 비교 ===
{| class="wikitable"
|+ DOCSIS 버전 비교<ref name="DOCSIS 4.0 Tech">{{웹 인용|url=https://www.cablelabs.com/technologies/docsis-4-0-technology |title=DOCSIS 4.0 Technology |publisher=CableLabs |access-date=March 7, 2023 }}</ref>
|-
! DOCSIS 버전
! 제작일
! 최대 다운스트림 용적
! 최대 업스트림 용적
! 기능
|-
| 1.0
| <!-- March -->1997
| rowspan="3" | 40&nbsp;Mbit/s
| rowspan="2" | 10&nbsp;Mbit/s
| 최초 출시
|-
| 1.1
| 2001<!-- Not the same as other sources (April 1999)? -->
| VoIP 기능 및 QoS 매커니즘 추가
|-
| 2.0
| 2002<!-- Not the same as other sources (December 2001)? -->
| 30&nbsp;Mbit/s
| 업스트림 데이터 속도 개선
|-
| 3.0
| <!-- August -->2006
| 1&nbsp;Gbit/s<!-- Note that both of these are the WHOLE-NODE bandwidth totals, and for this case this is approximately but not exactly the maximum attainable under BEST-POSSIBLE-CASE conditions (minimum maximum conditions under the spec are closer to 160/120 (4/4 bonded), while best-case is a 32/8 bonded connection producing 1200/200). -->
| 200&nbsp;Mbit/s
| 다운스트림 및 업스트림 데이터 속도 상당히 개선, IPv6 지원 도입, [[채널 본딩]] 도입
|-
| 3.1
| <!-- October -->2013
| rowspan="2" | 10&nbsp;Gbit/s<!-- Note that both of these are the WHOLE-NODE bandwidth totals, using standardized and somewhat idealized assumptions w.r.t. bandwidth availability and spectrum allocation. However, maximums under certain conditions (wider spectrum, higher QAM utilized, etc.) CAN (significantly) exceed these numbers! -->
| 1–2&nbsp;Gbit/s
| 다운스트림 및 업스트림 데이터 속도 상당히 개선, 채널 사양 재구성
|-
| 4.0
| 2017<!-- Cable labs released the spec for use in October 2017. -->
| 6&nbsp;Gbit/s
| DOCSIS 3.1 대비 업스트림 속도 상당히 개선
|}

== 같이 보기 ==
* [[장치 대역폭 목록]]

== 각주 ==
{{각주}}

== 외부 링크 ==
* [http://www.rohde-schwarz.com/en/applications/docsis-3.1-application-note_56280-108554.html DOCSIS 3.1] This Rohde & Schwarz application note discusses the fundamental technological advances of DOCSIS 3.1.
* [https://volpefirm.com/docsis101/ DOCSIS Tutorial] (2009) at Volpe Firm
=== Specifications ===
* [https://www.cablelabs.com/specifications/search?query=&category=DOCSIS&subcat=DOCSIS%201.0&doctype=&content=false&archives=false&currentPage=1 DOCSIS 1.0 specifications]
* [https://www.cablelabs.com/specifications/search?query=&category=DOCSIS&subcat=DOCSIS%201.1&doctype=&content=false&archives=false&currentPage=1 DOCSIS 1.1 specifications]
* [https://www.cablelabs.com/specifications/search?query=&category=DOCSIS&subcat=DOCSIS%202.0&doctype=&content=false&archives=false&currentPage=1 DOCSIS 2.0 specifications]
* [https://www.cablelabs.com/specifications/search?query=&category=DOCSIS&subcat=DOCSIS%203.0&doctype=&content=false&archives=false&currentPage=1 DOCSIS 3.0 specifications]
* [https://www.cablelabs.com/specifications/search?query=&category=DOCSIS&subcat=DOCSIS%203.1&doctype=&content=false&archives=false&currentPage=1 DOCSIS 3.1 specifications]
* [https://www.cablelabs.com/specifications/search?query=&category=DOCSIS&subcat=DOCSIS%204.0&doctype=&content=false&archives=false&currentPage=1 DOCSIS 4.0 specifications]

[[분류:ITU-T 권고]]
[[분류:링크 프로토콜]]