- 2070 Bhadra · 4+6 marks
Ecosystem components and IANA registries
Short answer
Key components include ISOC, IAB, IETF, IRTF, ICANN/IANA, RIRs, ISPs/IXPs, W3C/IEEE/ITU, and content providers/users. The Registries under IANA are five RIRs that allocate IP addresses and ASNs, maintain WHOIS for accountability, develop allocation policies, conserve address space, and provide reverse DNS delegation and training.
What are the major components/organizations of internet ecosystem? Write down the roles and responsibilities of Internet Registries under IANA.
Major components/organisations of the Internet ecosystem
The Internet has no owner. It works through cooperating organisations, each with a role.
| Organisation | Role |
|---|---|
| ISOC | Non-profit that promotes the open development of the Internet and supports IETF and IAB |
| IAB | Technical advice and architecture oversight |
| IETF / IESG | Develop and approve Internet standards as RFCs |
| IRTF | Long-term Internet research |
| ICANN | Coordinates DNS, IP addresses and protocol parameters; accredits registrars |
| IANA | Central registry of number resources, root zone and protocol parameters |
| RIRs | Allocate IP addresses and ASNs in their regions |
| ISPs / IXPs | Provide access and interconnection |
| W3C, IEEE, ITU | Web, LAN and telecom standards |
| Content providers, enterprises, users | Create and consume traffic and services |
Roles and responsibilities of Internet Registries under IANA
The Internet registries under IANA are the five Regional Internet Registries (RIRs): AFRINIC (Africa), APNIC (Asia-Pacific, including Nepal), ARIN (North America), LACNIC (Latin America and Caribbean) and RIPE NCC (Europe, Middle East, Central Asia). Beneath them are National Internet Registries (NIRs) and Local Internet Registries (LIRs, i.e. ISPs).
Roles and responsibilities:
- Allocation and assignment: receive blocks of IPv4, IPv6 and AS numbers from IANA and distribute them to NIRs, LIRs and end organisations according to documented need.
- Registration and database: record each allocation in a public WHOIS database, which gives accountability and a contact for abuse and operational problems.
- Policy development: run an open, bottom-up policy development process in which the community (ISPs, users) proposes and approves address policies.
- Conservation and aggregation: apply need-based rules to conserve scarce IPv4 space and encourage hierarchical allocation to keep routing tables small.
- Reverse DNS delegation: delegate in-addr.arpa and ip6.arpa zones so that IP addresses can be mapped back to names.
- Coordination: work with each other and IANA through the Number Resource Organization (NRO) on global policy and statistics.
- Training and outreach: provide training, meetings and technical support to members, and promote IPv6 and RPKI-based routing security.
- Membership services: manage members, fees and reports for the region.
✓ Answer checked by Claude Opus 5.5 (high effort)
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