ETSI TR 101 569 V1.1.1 (2012-12)

Technical Report
Access, Terminals, Transmission and Multiplexing (ATTM);
Integrated Broadband Cable and Television Networks;
Cable Network Transition to IPv6

2 ETSI TR 101 569 V1.1.1 (2012-12)

Reference
DTR/ATTM-003018
Keywords
cable, DOCSIS, HFC, IPv6
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ETSI
3 ETSI TR 101 569 V1.1.1 (2012-12)
Contents
Intellectual Property Rights . 6
Foreword . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Symbols and abbreviations . 11
3.1 Symbols . 11
3.2 Abbreviations . 12
4 Transition to Next Generation IP . 16
4.1 General Considerations . 16
4.2 Development of Transition Technologies . 18
4.3 End-to-end IPv6 and Network Support Systems and Applications . 19
4.4 Network Management . 20
4.5 MSO Considerations . 20
5 Background and Concept of Transition . 21
5.1 Broadband Cable Network Providers . 21
5.2 IP Connectivity in Cable Networks . 22
5.2.1 Customer Host . 22
5.2.2 Home Network . 22
5.2.3 Access Gateway . 22
5.2.4 Access Network . 23
5.2.5 Headend . 23
5.2.6 Internet . 23
6 Analysis of Cable Network Deployments . 23
6.1 Overview . 23
6.2 End-user CPE . 24
6.2.1 Stand-alone Cable Modem . 25
6.2.2 Home Router . 25
6.2.3 eRouter . 25
6.2.4 Set-top Box . 25
6.2.5 Consumer Equipment . 25
6.2.6 E-MTA . 26
6.3 Access Network . 26
6.3.1 DHCP . 26
6.3.2 TFTP . 26
6.3.3 ToD . 27
6.4 CMTS . 27
6.5 Core Network . 27
6.6 Datacentre. 27
6.6.1 DNS . 28
6.6.1.1 Authoritative DNS . 28
6.6.1.2 Recursive DNS . 28
6.6.2 Email . 28
6.6.3 Web Portals . 28
6.7 Support Services . 28
6.8 Lawful Intercept / Data Retention . 28
6.9 Other Functions . 29
7 IPv6 Readiness Market Analysis . 29
8 Support of IPv6 on Cable Network Components . 30
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4 ETSI TR 101 569 V1.1.1 (2012-12)
8.1 Overview . 30
8.2 Peering . 31
8.3 Core Network . 32
8.4 Access Aggregation . 32
8.5 CMTS/Headend . 32
8.6 HFC and CPE . 33
8.7 OSS and BSS . 33
8.8 DHCP and DNS . 34
8.9 Firewalls and Load Balancers . 34
8.10 Backend Support Services . 35
8.11 Web Services . 35
8.12 DTV Services . 36
8.13 Network Management and Monitoring Services . 36
8.14 Data Retention and Lawful Interception . 36
8.15 Home Services . 37
9 IPv6 Standardization . 37
10 IPv4 to IPv6 Transition Technical Analysis . 39
10.1 DS-Lite . 44
10.1.1 Technical Summary . 44
10.1.2 Technical Requirements Summary . 45
10.1.2.1 AFTR . 45
10.1.2.2 Core Network, Access Aggregation and Internet . 45
10.1.3 Technical Definition . 45
10.1.4 AFTR Hardware Features/Topology . 49
10.1.5 AFTR DS-Lite Specific Software Requirements . 50
10.1.6 Integrated Topology/Transport Requirements . 52
10.1.7 Feature Development Requirements . 53
10.1.8 Performance Requirements and Comparison . 54
10.1.9 DS-Lite CPE Requirements . 55
10.1.9.1 Feature Synopsis for DS-Lite in the Access Network . 56
10.1.9.2 Feature Development Requirements . 58
10.1.9.3 Software and Hardware Requirements . 58
10.1.9.4 Performance Requirements and Comparison . 59
10.1.10 Development and Deployment Status . 59
10.1.11 Failings/Issues of DS-Lite . 59
10.1.12 Summary Assessment . 60
10.2 NAT64 . 60
10.2.1 Technical Summary . 60
10.2.2 Technical Definition . 63
10.2.3 Feature Synopsis . 64
10.2.3.1 NAT64 Hardware Features/Topology . 64
10.2.3.2 NAT64 Specific Software Requirements . 65
10.2.4 Performance Requirements and Comparison . 67
10.2.5 Development and Deployment Status . 67
10.2.6 Failings/Issues of NAT64 . 67
10.2.7 Summary Assessment . 68
10.3 Teredo . 68
10.3.1 Technical Summary . 68
10.3.2 Technical Requirements Summary . 71
10.3.3 Technical Definition . 71
10.3.4 Performance Requirements and Comparison . 72
10.3.5 Development and Deployment Status . 72
10.3.6 Failings/Issues of Teredo . 73
10.3.7 Summary Assessment . 73
10.4 dIVI . 73
10.4.1 Technical Summary . 73
10.4.2 Address Family Translation (AFT) . 73
10.4.3 Technical Definition . 75
10.4.4 dIVI Hardware Features/Topology . 76
10.4.5 AFTR dIVI Specific Software Requirements . 77
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5 ETSI TR 101 569 V1.1.1 (2012-12)
10.4.6 Feature Development Requirements . 79
10.4.7 Performance Requirements and Comparison . 79
10.4.8 dIVI CPE Requirements . 80
10.4.8.1 Feature Synopsis for dIVI in the Access Network . 81
10.4.9 Failings/Issues of dIVI . 82
10.5 Technical Comparison . 82
11 IPv4 to IPv6 Future/Developing Transition Technologies . 82
11.1 464XLAT . 83
11.1.1 Technical Summary . 83
11.1.2 Technical Requirements Summary . 85
11.1.3 Technical Definition . 86
11.1.4 PLAT Hardware Features/Topology . 87
11.1.5 PLAT 464XLAT Specific Software Requirements . 87
11.1.6 Integrated Topology/Transport Requirements . 89
11.1.7 Failings/Issues of 464XLAT . 91
11.1.8 Summary Assessment . 91
11.2 Stateless DS-Lite . 92
11.2.1 Technical Summary . 92
11.2.2 Technical Requirements Summary . 93
11.2.3 Technical Definition . 94
11.2.4 AFTR Hardware Features/Topology . 94
11.2.5 B4/AFTR Specific Software Requirements . 95
11.2.6 Failings/Issues of Stateless DS-Lite . 96
11.2.7 Summary Assessment . 96
11.3 MAP-T . 96
11.3.1 Technical Definition . 96
11.3.2 Feature Synopsis of MAP-T . 98
11.3.3 Development and Deployment Status . 99
11.3.4 Summary Assessment . 99
11.4 MAP-E . 99
11.4.1 Technical Definition . 99
11.4.2 Feature Synopsis of MAP-E . 100
11.4.3 Development and Deployment Status . 101
11.4.4 Summary Assessment . 101
12 Technical Conclusion . 102
Annex A: List of Applicable IP Standards . 104
Annex B: IPv4/IPv6 Transition Standards . 107
Annex C: List of Transition Technologies . 122
C.1 Current Transition Technologies . 122
C.2 Future Transition Technologies . 122
C.3 Other Transition Technologies . 122
History . 124

ETSI
6 ETSI TR 101 569 V1.1.1 (2012-12)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Report (TR) has been produced by ETSI Technical Committee Access, Terminals, Transmission and
Multiplexing (ATTM).
Introduction
The present document accommodates an urgent need in the industry to assess the current status of Cable Equipment
standards that are implemented and deployed in the components that comprise integrated broadband cable and
television networks with regard to their readiness for IPv6. Considering the depletion of IPv4 addresses, transition to
IPv6 is required in order to enable continued growth of the customer base connected to Cable Networks and ensure
service continuity for existing and new customers. High-quality connectivity to all kinds of IP-based services and
networks is essential in today's business and private life.
A plethora of transition technologies have been proposed in IETF, other standardization organizations and by
manufacturers of IP technology to allow coexistence of IPv4 and IPv6 hosts, access and core networks as well as
services. Each of these technology options is specified, implemented and deployed in various forms and stages. The
present document analyses the transition technologies, provides technical summaries and derives recommendations for
one or more technologies depending on demographic and Cable Network architecture requirements. The results of the
technical analysis can be used for further standardization of Cable Network transition to IPv6.
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7 ETSI TR 101 569 V1.1.1 (2012-12)
1 Scope
The present document assesses the current status of Cable Equipment standards that are implemented and deployed in
the components that comprise integrated broadband cable and television networks and the approaches for their
transition to IPv6. Since the time-to-market is a factor considering the depletion of IPv4 addresses, the present
document accommodates an urgent need in the industry and provides the fundamental analysis for further
standardization work.
The present document assesses the IPv6 transition technologies to support basic customer services, voice and data.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
Not applicable.
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI TR 102 881 (V1.1.1): "Access, Terminals, Transmission and Multiplexing (ATTM); Cable
Network Handbook", June 2010.
[i.2] ETSI TS 103 161 (all parts) (V1.1.1): "Access, Terminals, Transmission and Multiplexing
(ATTM); Integrated Broadband Cable and Television Networks; IPCablecom 1.5".
[i.3] ETSI ES 201 488 (all parts) (V1.2.2): "Access and Terminals (AT); Data Over Cable Systems",
October 2003.
[i.4] ETSI ES 202 488 (all parts) (V1.1.1): "Access and Terminals (AT); Second Generation
Transmission Systems for Interactive Cable Television Services - IP Cable Modems",
September 2003.
[i.5] ETSI EN 302 878 (all parts) (V1.1.1): "Access, Terminals, Transmission and Multiplexing
(ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP
Cable Modems", November 2011.
[i.6] IEEE 802.11a: "IEEE Standard for Telecommunications and Information Exchange between
Systems - LAN/MAN Specific Requirements - Part 11: Wireless Medium Access Control (MAC)
and physical layer (PHY) specifications: High Speed Physical Layer in the 5 GHz band", 1999.
[i.7] IEEE 802.11b: "IEEE Standard for Information Technology - Telecommunications and
information exchange between systems - Local and Metropolitan networks - Specific requirements
- Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
specifications: Higher Speed Physical Layer (PHY) Extension in the 2.4 GHz band", 1999.
ETSI
8 ETSI TR 101 569 V1.1.1 (2012-12)
[i.8] IEEE 802.11g: "IEEE Standard for Information Technology - Local and metropolitan area
networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications: Further Higher Data Rate Extension in the 2.4 GHz Band",
2003.
[i.9] IEEE 802.11n: "IEEE Standard for Information technology - Local and metropolitan area
networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications Amendment 5: Enhancements for Higher Throughput", 2009.
[i.10] IETF I-D draft-bcx-behave-address-fmt-extension-02: "Extended IPv6 Addressing for Encoding
Port Range".
NOTE: Available at http://tools.ietf.org/id/draft-bcx-behave-address-fmt-extension-02.txt.
[i.11] IETF I-D draft-despres-intarea-4rd-01: "IPv4 Residual Deployment across IPv6-Service Networks
(4rd) ISP-NAT's Made Optional".
NOTE: Available at http://tools.ietf.org/id/draft-despres-intarea-4rd-01.txt.
[i.12] IETF I-D draft-ietf-behave-nat64-discovery-heuristic-11: "Discovery of IPv6 Prefix Used for IPv6
Address Synthesis".
NOTE: Available at http://tools.ietf.org/html/draft-ietf-behave-nat64-discovery-heuristic-11.
[i.13] IETF I-D draft-ietf-v6ops-6204bis-10: "Basic Requirements for IPv6 Customer Edge Routers".
NOTE: Available at http://tools.ietf.org/html/draft-ietf-v6ops-6204bis-10.
[i.14] IETF I-D draft-massar-v6ops-ayiya-02: "AYIYA - Anything In Anything".
NOTE: Available at http://tools.ietf.org/id/draft-massar-v6ops-ayiya-02.txt.
[i.15] IETF I-D draft-mdt-softwire-map-dhcp-option-02: "DHCPv6 Options for Mapping of Address and
Port".
NOTE: Available at http://tools.ietf.org/id/draft-mdt-softwire-map-dhcp-option-02.txt.
[i.16] IETF I-D draft-mdt-softwire-mapping-address-and-port-03: "Mapping of Address and Port
(MAP)".
NOTE: Available at http://tools.ietf.org/id/draft-mdt-softwire-mapping-address-and-port-03.txt.
[i.17] IETF I-D draft-xli-behave-divi-04: "dIVI - Dual-Stateless IPv4/IPv6 Translation".
NOTE: Available at http://tools.ietf.org/id/draft-xli-behave-divi-04.txt.
[i.18] IETF I-D draft-xli-behave-divi-pd-01: "dIVI-pd - Dual-Stateless IPv4/IPv6 Translation with Prefix
Delegation".
NOTE: Available at http://tools.ietf.org/id/draft-xli-behave-divi-pd-01.txt.
[i.19] IETF RFC 868: "Time Protocol", May 1983.
NOTE: Available at http://www.ietf.org/rfc/rfc868.
[i.20] IETF RFC 1142: "IS-IS Protocol Specification", February 1990.
NOTE: Available at http://www.ietf.org/rfc/rfc1142.txt.
[i.21] IETF RFC 1350: "Trivial File Transfer Protocol", July 1992.
NOTE: Available at http://www.ietf.org/rfc/rfc1350.txt.
[i.22] IETF RFC 1912: "Common DNS Operational and Configuration Errors", February 1996.
NOTE: Available at http://www.ietf.org/rfc/rfc1912.txt.
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9 ETSI TR 101 569 V1.1.1 (2012-12)
[i.23] IETF RFC 1918: "Address Allocation for Private Internets", February 1996.
NOTE: Available at http://tools.ietf.org/html/rfc1918.txt.
[i.24] IETF RFC 2131: "Dynamic Host Configuration Protocol", March 1997.
NOTE: Available at http://www.ietf.org/rfc/rfc2131.txt.
[i.25] IETF RFC 2178: "OSPF Version 2", April 1998.
NOTE: Available at http://www.ietf.org/rfc/rfc2178.txt.
[i.26] IETF RFC 2453: "RIP Version 2", November 1998.
NOTE: Available at http://www.ietf.org/rfc/rfc2453.txt.
[i.27] IETF RFC 2473: "Generic Packet Tunneling in IPv6 Specification".
NOTE: Available at http://www.ietf.org/rfc/rfc2473.txt.
[i.28] IETF RFC 3123: "A DNS RR Type for Lists of Address Prefixes (APL RR)", June 2001.
NOTE: Available at http://tools.ietf.org/rfc/rfc3123.txt.
[i.29] IETF RFC 3142: "An IPv6-to-IPv4 Transport Relay Translator".
NOTE: Available at http://www.ietf.org/rfc/rfc3142.txt.
[i.30] IETF RFC 3633: "IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) v6",
December 2003.
NOTE: Available at http://www.ietf.org/rfc/rfc3633.txt.
[i.31] IETF RFC 4213: "Basic Transition Mechanisms for IPv6 Hosts and Routers".
NOTE: Available at http://tools.ietf.org/rfc/rfc4213.txt.
[i.32] IETF RFC 4361: "Node-specific Client Identifiers for Dynamic Host Configuration Protocol
Version Four (DHCPv4)", February 2006.
NOTE: Available at http://tools.ietf.org/rfc/rfc4361.txt.
[i.33] IETF RFC 4380: "Teredo - Tunneling IPv6 over UDP through Network Address Translations
(NATs)", February 2006.
NOTE: Available at http://www.ietf.org/rfc/rfc4380.txt.
[i.34] IETF RFC 4861: "Neighbor Discovery for IP version 6 (IPv6)", September 2007.
NOTE: Available at http://tools.ietf.org/rfc/rfc4861.txt.
[i.35] IETF RFC 4862: "IPv6 Stateless Address Autoconfiguration", September 2007.
NOTE: Available at http://tools.ietf.org/rfc/rfc4862.txt.
[i.36] IETF RFC 5572: "IPv6 Tunnel Broker with the Tunnel Setup Protocol (TSP)".
NOTE: Available at http://tools.ietf.org/rfc/rfc5572.txt.
[i.37] IETF RFC 5625: "DNS Proxy Implementation Guidelines", August 2009.
NOTE: Available at http://tools.ietf.org/rfc/rfc5625.txt.
[i.38] IETF RFC 5969: "IPv6 Rapid Deployment on IPv4 Infrastructures (6rd) -- Protocol Specification".
NOTE: Available at http://tools.ietf.org/rfc/rfc5969.txt.
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10 ETSI TR 101 569 V1.1.1 (2012-12)
[i.39] IETF RFC 6052: "IPv6 Addressing of IPv6/IPv4 Translators".
NOTE: Available at http://tools.ietf.org/rfc/rfc6052.txt.
[i.40] IETF RFC 6106: "IPv6 Router Advertisement Options for DNS Configuration", November 2012.
NOTE: Available at http://tools.ietf.org/rfc/rfc6106.txt.
[i.41] IETF RFC 6145: "IP/ICMP Translation Algorithm", April 2011.
NOTE: Available at http://tools.ietf.org/rfc/rfc6145.txt.
[i.42] IETF RFC 6146: "Stateful NAT64 - Network Address and Protocol Translation from IPv6 Clients
to IPv4 Servers", April 2011.
NOTE: Available at http://tools.ietf.org/rfc/rfc6146.txt.
[i.43] IETF RFC 6147: "DNS64 - DNS Extension for Network Address Translation from IPv6 Clients to
IPv4 Servers", April 2011.
NOTE: Available at http://tools.ietf.org/rfc/rfc6147.txt.
[i.44] IETF RFC 6164: "Using 127-Bit IPv6 Prefixes on Inter-Router Links", April 2011.
NOTE: Available at http://tools.ietf.org/rfc/rfc6164.txt.
[i.45] IETF RFC 6204: "Basic Requirements for IPv6 Customer Edge Routers", April 2011.
NOTE: Available at http://tools.ietf.org/rfc/rfc6204.txt.
[i.46] IETF RFC 6333: "Dual-Stack Lite Broadband Deployments Following IPv4 Exhaustion",
August 2011.
NOTE: Available at http://tools.ietf.org/rfc/rfc6333.txt.
[i.47] IETF RFC 6563: "Moving A6 to Historic Status", March 2012.
NOTE: Available at http://tools.ietf.org/rfc/rfc6563.txt.
[i.48] Broadband Forum TR-069 Issue 1 Amendment 4: "CPE WAN Management Protocol".
NOTE: Available at http://www.broadband-forum.org/technical/download/TR-069_Amendment-4.pdf.
[i.49] CableLabs CM-SP-DOCSIS2.0-IPv6-I06-120809: "Data-Over-Cable Service Interface
Specifications; DOCSIS 2.0 + IPv6 Cable Modem Specification", August 2012.
[i.50] CableLabs CM-SP-OSSIv3.0-I19-120809: "Data-Over-Cable Service Interface Specifications;
Operational Support System Interface Specification", August 2012.
[i.51] CableLabs CM-SP-eRouter-I08-120329: "Data-Over-Cable Service Interface Specifications; IPv4
and IPv6 eRouter Specification", March 2012.
[i.52] IEEE 802.1Q-2011: "IEEE Standard for Local and metropolitan area networks--Media Access
Control (MAC) Bridges and Virtual Bridged Local Area Networks".
[i.53] IETF RFC 6334: "Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Option for
Dual-Stack Lite".
[i.54] ISO/IEC 8802-3:2000: "Information technology -- Telecommunications and information exchange
between systems -- Local and metropolitan area networks -- Specific requirements -- Part 3:
Carrier sense multiple access with collision detection (CSMA/CD) access method and physical
layer specifications".
[i.55] IETF RFC 2185: "Routing Aspects of IPv6 Transition".
[i.56] IETF RFC 3053: "IPv6 Tunnel Broker".
[i.57] IETF RFC 2460: "Internet Protocol, Version 6 (IPv6) Specification".
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11 ETSI TR 101 569 V1.1.1 (2012-12)
[i.58] IETF RFC 4193: "Unique Local IPv6 Unicast Addresses".
[i.59] IETF RFC 5942: "IPv6 Subnet Model: The Relationship between Links and Subnet Prefixes".
[i.60] IETF RFC 3971: "SEcure Neighbor Discovery (SEND)".
[i.61] IETF RFC 4443: "Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6
(IPv6) Specification".
[i.62] IETF RFC 4605: "Internet Group Management Protocol (IGMP) / Multicast Listener Discovery
(MLD)-Based Multicast Forwarding (IGMP/MLD Proxying)".
[i.63] IETF RFC 4632: "Classless Inter-domain Routing (CIDR): The Internet Address Assignment and
Aggregation Plan".
[i.64] IETF RFC 5308: "Routing IPv6 with IS-IS".
[i.65] IETF RFC 2740: "OSPF for IPv6".
[i.66] IETF RFC 4798: "Connecting IPv6 Islands over IPv4 MPLS Using IPv6 Provider Edge Routers
(6PE)".
[i.67] IETF RFC 4659: "BGP-MPLS IP Virtual Private Network (VPN) Extension for IPv6 VPN".
[i.68] IETF RFC 3315: "Dynamic Host Configuration Protocol for IPv6 (DHCPv6)".
[i.69] IETF RFC 3646: "DNS Configuration options for Dynamic Host Configuration Protocol for IPv6
(DHCPv6)".
[i.70] IETF RFC 3736: "Stateless Dynamic Host Configuration Protocol (DHCP) Service for IPv6".
[i.71] IETF RFC 4191: "Default Router Preferences and More-Specific Routes".
[i.72] IETF RFC 4075: "Simple Network Time Protocol (SNTP) Configuration Option for DHCPv6".
[i.73] IETF RFC 3596: "DNS Extensions to Support IP Version 6".
[i.74] IETF RFC 6434: "IPv6 Node Requirements".
[i.75] IETF RFC 2464: "Transmission of IPv6 Packets over Ethernet Networks".
[i.76] IETF RFC 2827: "Network Ingress Filtering: Defeating Denial of Service Attacks which employ
IP Source Address Spoofing".
3 Symbols and abbreviations
3.1 Symbols
For the purposes of the present document, the following symbols apply:
µs Microsecond
Gbit/s Gigabit per second
Mbit/s Megabit per second
MHz Megahertz
ms Millisecond
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12 ETSI TR 101 569 V1.1.1 (2012-12)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
3GPP Third Generation Partnership Project
4rd IPv4 Residual Deployment
6over4 IPv6 over IPv4
6PE IPv6 Provider Edge
6rd IPv6 Rapid Deployment
6VPE IPv6 VPN Provider Edge
A (DNS) A Resource Record
A+P Address Plus Port
A6 (DNS) A6 Resource Record (historic)
AAA Authorization, Authentication, Accounting
AAAA (DNS) AAAA Resource Record
ACK Acknowledgement
AFT Address Family Translation
AFTR AFT Router
AICCU Automatic IPv6 Connectivity Client Utility
ALG Application Layer Gateway
ALG-P Application Layer Gateway - Proxy
ALG-TS Application Layer Gateway - Transaction Services
ALP Application Layer Proxy
ALTS Application Layer Translation Service
API Application Programming Interface
APL Access Prefix List
ARP Address Resolution Protocol
ARPA Address & Routing Parameter Area
AS Autonomous System
ASIC Application Specific Integrated Circuit
ATM Asynchronous Transmission Mode
AV Audio Video
AYIYA Anything-In-Anything
B2B Business to Business
B4 (DS-Lite) Basic Bridging BroadBand element
BFD Bidirectional Forwarding Detection
BGP Border Gateway Protocol
BIS Bump-In-the-Stack
BNG Broadband Network Gateway
BOOTP Protocol for assigning addresses
BRAS Broadband Remote Access Server
BSS Billing Support System
CAPEX Capital Expenditure
CBSA Customer Block Set Allocation
CDN Content Distribution Network
CDP Cisco Discovery Protocol
CE Customer Edge
CEF Cisco Express Forwarding
CGA Cryptographically Generated Addresses
CGN Carrier-Grade NAT
CIDR Classless Inter-Domain Routing
CLAT Customer-side XLAT
CLNS ConnectionLess-mode Network Service
CM Cable Modem
CMTS Cable Modem Termination System
CoPP Control Plane Policing
CPA Customer Port Allocation
CPE Customer Premises Equipment
DAD Duplicate Address Detection
dCEF Distributed CEF
DCU Destination Class Usage (accounting method in routers)
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13 ETSI TR 101 569 V1.1.1 (2012-12)
DF bit Don't Fragment flag (in IPv4 header)
DF Don't Fragment
DHCP Dynamic Host Configuration Protocol
dIVI Dual Stateless IPv4/IPv6 Translation
DMZ DeMilitarized Zone
DNS Domain Name System
DNSSL DNS Search List
DOCSIS Data Over Cable Service Interface Specification
DPI Deep Packet Inspection
DR Data Retention
DR/LI Data Retention & Lawful Intercept
DSCP Differentiated Services Code Point
DSL Digital Subscriber Line
DSLAM DSL Access Multiplexer
DS-Lite Dua
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