網際網路工程任務組（Internet Engineering Task Force，IETF） 成立於1986年，主要任務為負責網路技術規範的研究和標準的制定。其屬於開放性組織，任何人都可參與，參加對象多以個人為主而非代表公司或團體。
目前IETF的工作任務共分7大領域，每一個領域由2位ADs（Area Directors）帶領，各領域下依主題成立多個工作組（Working Groups，WGs）進行網路架構及協議規範制定工作，目前持續運作的工作組合計共有123個，工作組屬暫時性組織，當工作任務告一段落即結束，若有新議題提出就可能組織新的工作組進行討論。以下就IETF 2021年產出RFC之所屬工作組進行統計分析：
- IETF 2021年總計產出240篇RFC
- 共有62個WG產出RFC 198篇
- 另有42篇RFC未歸屬任何WG
240篇RFC細部依WG統計如下：
| 序號 | WG | WG Name | 篇數 |
| 1 | mmusic | Multiparty Multimedia Session Control | 15 |
| 2 | rtcweb | Real-Time Communication in WEB-browsers | 11 |
| 3 | idr | Inter-Domain Routing | 9 |
| 4 | bess | BGP Enabled ServiceS | 9 |
| 5 | regext | Registration Protocols Extensions | 8 |
| 6 | detnet | Deterministic Networking | 8 |
| 7 | dnsop | Domain Name System Operations | 6 |
| 8 | babel | Babel routing protocol | 6 |
| 9 | avtcore | Audio/Video Transport Core Maintenance | 6 |
| 10 | anima | Autonomic Networking Integrated Model and Approach | 6 |
| 11 | stir | Secure Telephone Identity Revisited | 5 |
| 12 | ippm | IP Performance Measurement | 5 |
| 13 | dots | DDoS Open Threat Signaling | 5 |
| 14 | roll | Routing Over Low power and Lossy networks | 4 |
| 15 | rmcat | RTP Media Congestion Avoidance Techniques | 4 |
| 16 | quic | QUIC | 4 |
| 17 | opsawg | Operations and Management Area Working Group | 4 |
| 18 | 6tisch | IPv6 over the TSCH mode of IEEE 802.15.4e | 4 |
| 19 | v6ops | IPv6 Operations | 3 |
| 20 | spring | Source Packet Routing in Networking | 3 |
| 21 | pce | Path Computation Element | 3 |
| 22 | oauth | Web Authorization Protocol | 3 |
| 23 | mpls | Multiprotocol Label Switching | 3 |
| 24 | lsr | Link State Routing | 3 |
| 25 | lamps | Limited Additional Mechanisms for PKIX and SMIME | 3 |
| 26 | core | Constrained RESTful Environments | 3 |
| 27 | cbor | Concise Binary Object Representation Maintenance and Extensions | 3 |
| 28 | calext | Calendaring Extensions | 3 |
| 29 | tsvwg | Transport Area Working Group | 2 |
| 30 | tls | Transport Layer Security | 2 |
| 31 | tcpm | TCP Maintenance and Minor Extensions | 2 |
| 32 | sfc | Service Function Chaining | 2 |
| 33 | perc | Privacy Enhanced RTP Conferencing | 2 |
| 34 | netmod | Network Modeling | 2 |
| 35 | lpwan | IPv6 over Low Power Wide-Area Networks | 2 |
| 36 | httpbis | HTTP | 2 |
| 37 | extra | Email mailstore and eXtensions To Revise or Amend | 2 |
| 38 | emu | EAP Method Update | 2 |
| 39 | dprive | DNS PRIVate Exchange | 2 |
| 40 | ccamp | Common Control and Measurement Plane | 2 |
| 41 | acme | Automated Certificate Management Environment | 2 |
| 42 | 6man | IPv6 Maintenance | 2 |
| 43 | 6lo | IPv6 over Networks of Resource-constrained Nodes | 2 |
| 44 | uta | Using TLS in Applications | 1 |
| 45 | teas | Traffic Engineering Architecture and Signaling | 1 |
| 46 | suit | Software Updates for Internet of Things | 1 |
| 47 | shmoo | Stay Home Meet Only Online | 1 |
| 48 | rtgwg | Routing Area Working Group | 1 |
| 49 | opsec | Operational Security Capabilities for IP Network Infrastructure | 1 |
| 50 | ntp | Network Time Protocols | 1 |
| 51 | mboned | MBONE Deployment | 1 |
| 52 | lwig | Light-Weight Implementation Guidance | 1 |
| 53 | jmap | JSON Mail Access Protocol | 1 |
| 54 | ipsecme | IP Security Maintenance and Extensions | 1 |
| 55 | i2nsf | Interface to Network Security Functions | 1 |
| 56 | homenet | Home Networking | 1 |
| 57 | ecrit | Emergency Context Resolution with Internet Technologies | 1 |
| 58 | dmarc | Domain-based Message Authentication, Reporting & Conformance | 1 |
| 59 | dhc | Dynamic Host Configuration | 1 |
| 60 | cellar | Codec Encoding for LossLess Archiving and Realtime transmission | 1 |
| 61 | bmwg | Benchmarking Methodology | 1 |
| 62 | bfd | Bidirectional Forwarding Detection | 1 |
| 63 | N/A | N/A | 42 |
若對IETF或相關WG或RFC有興趣，歡迎參加IETF 113次會議(IETF 113 Vienna, 19 Mar 2022 – 25 Mar 2022)，會議網站鏈結如下：
