| 3466 | A Model for Content Internetworking (CDI)M. Day, B. Cain, G. Tomlinson, P. Rzewski · obsoleted by RFC 7336 | Informational | March 2003 |
| 3467 | Role of the Domain Name System (DNS)J. Klensin | Informational | March 2003 |
| 3468 | The Multiprotocol Label Switching (MPLS) Working Group decision on MPLS signaling protocolsL. Andersson, G. Swallow | Informational | February 2003 |
| 3469 | Framework for Multi-Protocol Label Switching (MPLS)-based RecoveryV. Sharma, Ed., F. Hellstrand, Ed. | Informational | February 2003 |
| 3470 | Guidelines for the Use of Extensible Markup Language (XML) within IETF ProtocolsS. Hollenbeck, M. Rose, L. Masinter | Best Current Practice | January 2003 |
| 3471 | Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional DescriptionL. Berger, Ed. | Proposed Standard | February 2003 |
| 3472 | Generalized Multi-Protocol Label Switching (GMPLS) Signaling Constraint-based Routed Label Distribution Protocol (CR-LDP) ExtensionsP. Ashwood-Smith, Ed., L. Berger, Ed. | Proposed Standard | February 2003 |
| 3473 | Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) ExtensionsL. Berger, Ed. | Proposed Standard | February 2003 |
| 3474 | Documentation of IANA assignments for Generalized MultiProtocol Label Switching (GMPLS) Resource Reservation Protocol - Traffic Engineering (RSVP-TE) Usage and Extensions for Automatically Switched Optical Network (ASON)Z. Lin, D. Pendarakis | Informational | April 2003 |
| 3475 | Documentation of IANA assignments for Constraint-Based LSP setup using LDP (CR-LDP) Extensions for Automatic Switched Optical Network (ASON)O. Aboul-Magd | Informational | April 2003 |
| 3476 | Documentation of IANA Assignments for Label Distribution Protocol (LDP), Resource ReSerVation Protocol (RSVP), and Resource ReSerVation Protocol-Traffic Engineering (RSVP-TE) Extensions for Optical UNI SignalingB. Rajagopalan | Informational | April 2003 |
| 3477 | Signalling Unnumbered Links in Resource ReSerVation Protocol - Traffic Engineering (RSVP-TE)K. Kompella, Y. Rekhter | Proposed Standard | February 2003 |
| 3478 | Graceful Restart Mechanism for Label Distribution ProtocolM. Leelanivas, Y. Rekhter, R. Aggarwal | Proposed Standard | February 2003 |
| 3479 | Fault Tolerance for the Label Distribution Protocol (LDP)A. Farrel, Ed. | Proposed Standard | February 2003 |
| 3480 | Signalling Unnumbered Links in CR-LDP (Constraint-Routing Label Distribution Protocol)K. Kompella, Y. Rekhter, A. Kullberg | Proposed Standard | February 2003 |
| 3481 | TCP over Second (2.5G) and Third (3G) Generation Wireless NetworksH. Inamura, Ed., G. Montenegro, Ed., R. Ludwig, A. Gurtov, F. Khafizov | Best Current Practice | February 2003 |
| 3482 | Number Portability in the Global Switched Telephone Network (GSTN): An OverviewM. Foster, T. McGarry, J. Yu | Informational | February 2003 |
| 3483 | Framework for Policy Usage Feedback for Common Open Policy Service with Policy Provisioning (COPS-PR)D. Rawlins, A. Kulkarni, M. Bokaemper, K. Chan | Informational | March 2003 |
| 3484 | Default Address Selection for Internet Protocol version 6 (IPv6)R. Draves · obsoleted by RFC 6724 | Proposed Standard | March 2003 |
| 3485 | The Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Static Dictionary for Signaling Compression (SigComp)M. Garcia-Martin, C. Bormann, J. Ott, R. Price, A. B. Roach | Proposed Standard | March 2003 |
| 3486 | Compressing the Session Initiation Protocol (SIP)G. Camarillo | Proposed Standard | February 2003 |
| 3487 | Requirements for Resource Priority Mechanisms for the Session Initiation Protocol (SIP)H. Schulzrinne | Informational | March 2003 |
| 3488 | Cisco Systems Router-port Group Management Protocol (RGMP)I. Wu, T. Eckert | Informational | March 2003 |
| 3489 | STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)J. Rosenberg, J. Weinberger, C. Huitema, R. Mahy · obsoleted by RFC 5389 | Proposed Standard | March 2003 |
| 3490 | Internationalizing Domain Names in Applications (IDNA)P. Faltstrom, P. Hoffman, A. Costello · obsoleted by RFC 5890, RFC 5891 | Proposed Standard | March 2003 |
| 3491 | Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)P. Hoffman, M. Blanchet · obsoleted by RFC 5891 | Proposed Standard | March 2003 |
| 3492 | Punycode: A Bootstring encoding of Unicode for Internationalized Domain Names in Applications (IDNA)A. Costello | Proposed Standard | March 2003 |
| 3493 | Basic Socket Interface Extensions for IPv6R. Gilligan, S. Thomson, J. Bound, J. McCann, W. Stevens | Informational | March 2003 |
| 3494 | Lightweight Directory Access Protocol version 2 (LDAPv2) to Historic StatusK. Zeilenga | Informational | March 2003 |
| 3495 | Dynamic Host Configuration Protocol (DHCP) Option for CableLabs Client ConfigurationB. Beser, P. Duffy, Ed. | Proposed Standard | March 2003 |
| 3496 | Protocol Extension for Support of Asynchronous Transfer Mode (ATM) Service Class-aware Multiprotocol Label Switching (MPLS) Traffic EngineeringA. G. Malis, T. Hsiao | Informational | March 2003 |
| 3497 | RTP Payload Format for Society of Motion Picture and Television Engineers (SMPTE) 292M VideoL. Gharai, C. Perkins, G. Goncher, A. Mankin | Proposed Standard | March 2003 |
| 3498 | Definitions of Managed Objects for Synchronous Optical Network (SONET) Linear Automatic Protection Switching (APS) ArchitecturesJ. Kuhfeld, J. Johnson, M. Thatcher | Proposed Standard | March 2003 |
| 3499 | Request for Comments Summary RFC Numbers 3400-3499S. Ginoza | Informational | December 2003 |
| 3501 | INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1M. Crispin · obsoleted by RFC 9051 | Proposed Standard | March 2003 |
| 3502 | Internet Message Access Protocol (IMAP) - MULTIAPPEND ExtensionM. Crispin | Proposed Standard | March 2003 |
| 3503 | Message Disposition Notification (MDN) profile for Internet Message Access Protocol (IMAP)A. Melnikov | Proposed Standard | March 2003 |
| 3504 | Internet Open Trading Protocol (IOTP) Version 1, ErrataD. Eastlake | Informational | March 2003 |
| 3505 | Electronic Commerce Modeling Language (ECML): Version 2 RequirementsD. Eastlake | Informational | March 2003 |
| 3506 | Requirements and Design for Voucher Trading System (VTS)K. Fujimura, D. Eastlake | Informational | March 2003 |
| 3507 | Internet Content Adaptation Protocol (ICAP)J. Elson, A. Cerpa | Informational | April 2003 |
| 3508 | H.323 Uniform Resource Locator (URL) Scheme RegistrationO. Levin | Informational | April 2003 |
| 3509 | Alternative Implementations of OSPF Area Border RoutersA. Zinin, A. Lindem, D. Yeung | Informational | April 2003 |
| 3510 | Internet Printing Protocol/1.1: IPP URL SchemeR. Herriot, I. McDonald | Proposed Standard | April 2003 |
| 3511 | Benchmarking Methodology for Firewall PerformanceB. Hickman, D. Newman, S. Tadjudin, T. Martin · obsoleted by RFC 9411 | Informational | April 2003 |
| 3512 | Configuring Networks and Devices with Simple Network Management Protocol (SNMP)M. MacFaden, D. Partain, J. Saperia, W. Tackabury | Informational | April 2003 |
| 3513 | Internet Protocol Version 6 (IPv6) Addressing ArchitectureR. Hinden, S. Deering · obsoleted by RFC 4291 | Proposed Standard | April 2003 |
| 3514 | The Security Flag in the IPv4 HeaderS. Bellovin | Informational | 1 April 2003 |
| 3515 | The Session Initiation Protocol (SIP) Refer MethodR. Sparks | Proposed Standard | April 2003 |
| 3516 | IMAP4 Binary Content ExtensionL. Nerenberg | Proposed Standard | April 2003 |
| 3517 | A Conservative Selective Acknowledgment (SACK)-based Loss Recovery Algorithm for TCPE. Blanton, M. Allman, K. Fall, L. Wang · obsoleted by RFC 6675 | Proposed Standard | April 2003 |
| 3518 | Point-to-Point Protocol (PPP) Bridging Control Protocol (BCP)M. Higashiyama, F. Baker, T. Liao | Proposed Standard | April 2003 |
| 3519 | Mobile IP Traversal of Network Address Translation (NAT) DevicesH. Levkowetz, S. Vaarala | Proposed Standard | May 2003 |
| 3520 | Session Authorization Policy ElementL-N. Hamer, B. Gage, B. Kosinski, H. Shieh | Proposed Standard | April 2003 |
| 3521 | Framework for Session Set-up with Media AuthorizationL-N. Hamer, B. Gage, H. Shieh | Informational | April 2003 |
| 3522 | The Eifel Detection Algorithm for TCPR. Ludwig, M. Meyer | Experimental | April 2003 |
| 3523 | Internet Emergency Preparedness (IEPREP) Telephony Topology TerminologyJ. Polk | Informational | April 2003 |
| 3524 | Mapping of Media Streams to Resource Reservation FlowsG. Camarillo, A. Monrad | Proposed Standard | April 2003 |
| 3525 | Gateway Control Protocol Version 1C. Groves, Ed., M. Pantaleo, Ed., T. Anderson, Ed., T. Taylor, Ed. · obsoleted by RFC 5125 | Historic | June 2003 |
| 3526 | More Modular Exponential (MODP) Diffie-Hellman groups for Internet Key Exchange (IKE)T. Kivinen, M. Kojo | Proposed Standard | May 2003 |
| 3527 | Link Selection sub-option for the Relay Agent Information Option for DHCPv4K. Kinnear, M. Stapp, R. Johnson, J. Kumarasamy | Proposed Standard | April 2003 |
| 3528 | Mesh-enhanced Service Location Protocol (mSLP)W. Zhao, H. Schulzrinne, E. Guttman | Experimental | May 2003 |
| 3529 | Using Extensible Markup Language-Remote Procedure Calling (XML-RPC) in Blocks Extensible Exchange Protocol (BEEP)W. Harold | Experimental | April 2003 |
| 3530 | Network File System (NFS) version 4 ProtocolS. Shepler, B. Callaghan, D. Robinson, R. Thurlow, C. Beame, M. Eisler, D. Noveck · obsoleted by RFC 7530 | Proposed Standard | April 2003 |
| 3531 | A Flexible Method for Managing the Assignment of Bits of an IPv6 Address BlockM. Blanchet | Informational | April 2003 |
| 3532 | Requirements for the Dynamic Partitioning of Switching ElementsT. Anderson, J. Buerkle | Informational | May 2003 |
| 3533 | The Ogg Encapsulation Format Version 0S. Pfeiffer | Informational | May 2003 |
| 3534 | The application/ogg Media TypeL. Walleij · obsoleted by RFC 5334 | Proposed Standard | May 2003 |
| 3535 | Overview of the 2002 IAB Network Management WorkshopJ. Schoenwaelder | Informational | May 2003 |
| 3536 | Terminology Used in Internationalization in the IETFP. Hoffman · obsoleted by RFC 6365 | Informational | May 2003 |
| 3537 | Wrapping a Hashed Message Authentication Code (HMAC) key with a Triple-Data Encryption Standard (DES) Key or an Advanced Encryption Standard (AES) KeyJ. Schaad, R. Housley | Proposed Standard | May 2003 |
| 3538 | Secure Electronic Transaction (SET) Supplement for the v1.0 Internet Open Trading Protocol (IOTP)Y. Kawatsura | Informational | June 2003 |
| 3539 | Authentication, Authorization and Accounting (AAA) Transport ProfileB. Aboba, J. Wood | Proposed Standard | June 2003 |
| 3540 | Robust Explicit Congestion Notification (ECN) Signaling with NoncesN. Spring, D. Wetherall, D. Ely | Historic | June 2003 |
| 3541 | A Uniform Resource Name (URN) Namespace for the Web3D Consortium (Web3D)A. Walsh | Informational | May 2003 |
| 3542 | Advanced Sockets Application Program Interface (API) for IPv6W. Stevens, M. Thomas, E. Nordmark, T. Jinmei | Informational | June 2003 |
| 3543 | Registration Revocation in Mobile IPv4S. Glass, M. Chandra | Proposed Standard | August 2003 |
| 3544 | IP Header Compression over PPPT. Koren, S. Casner, C. Bormann | Proposed Standard | July 2003 |
| 3545 | Enhanced Compressed RTP (CRTP) for Links with High Delay, Packet Loss and ReorderingT. Koren, S. Casner, J. Geevarghese, B. Thompson, P. Ruddy | Proposed Standard | July 2003 |
| 3546 | Transport Layer Security (TLS) ExtensionsS. Blake-Wilson, M. Nystrom, D. Hopwood, J. Mikkelsen, T. Wright · obsoleted by RFC 4366 | Proposed Standard | June 2003 |
| 3547 | The Group Domain of InterpretationM. Baugher, B. Weis, T. Hardjono, H. Harney · obsoleted by RFC 6407 | Proposed Standard | July 2003 |
| 3548 | The Base16, Base32, and Base64 Data EncodingsS. Josefsson, Ed. · obsoleted by RFC 4648 | Informational | July 2003 |
| 3549 | Linux Netlink as an IP Services ProtocolJ. Salim, H. Khosravi, A. Kleen, A. Kuznetsov | Informational | July 2003 |
| 3550 | RTP: A Transport Protocol for Real-Time ApplicationsH. Schulzrinne, S. Casner, R. Frederick, V. Jacobson | Internet Standard | July 2003 |
| 3551 | RTP Profile for Audio and Video Conferences with Minimal ControlH. Schulzrinne, S. Casner | Internet Standard | July 2003 |
| 3552 | Guidelines for Writing RFC Text on Security ConsiderationsE. Rescorla, B. Korver | Best Current Practice | July 2003 |
| 3553 | An IETF URN Sub-namespace for Registered Protocol ParametersM. Mealling, L. Masinter, T. Hardie, G. Klyne | Best Current Practice | June 2003 |
| 3554 | On the Use of Stream Control Transmission Protocol (SCTP) with IPsecS. Bellovin, J. Ioannidis, A. Keromytis, R. Stewart | Proposed Standard | July 2003 |
| 3555 | MIME Type Registration of RTP Payload FormatsS. Casner, P. Hoschka · obsoleted by RFC 4855, RFC 4856 | Proposed Standard | July 2003 |
| 3556 | Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) BandwidthS. Casner | Proposed Standard | July 2003 |
| 3557 | RTP Payload Format for European Telecommunications Standards Institute (ETSI) European Standard ES 201 108 Distributed Speech Recognition EncodingQ. Xie, Ed. | Proposed Standard | July 2003 |
| 3558 | RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV)A. Li | Proposed Standard | July 2003 |
| 3559 | Multicast Address Allocation MIBD. Thaler | Proposed Standard | June 2003 |
| 3560 | Use of the RSAES-OAEP Key Transport Algorithm in Cryptographic Message Syntax (CMS)R. Housley | Proposed Standard | July 2003 |
| 3561 | Ad hoc On-Demand Distance Vector (AODV) RoutingC. Perkins, E. Belding-Royer, S. Das | Experimental | July 2003 |
| 3562 | Key Management Considerations for the TCP MD5 Signature OptionM. Leech | Informational | July 2003 |
| 3563 | Cooperative Agreement Between the ISOC/IETF and ISO/IEC Joint Technical Committee 1/Sub Committee 6 (JTC1/SC6) on IS-IS Routing Protocol DevelopmentA. Zinin | Informational | July 2003 |
| 3564 | Requirements for Support of Differentiated Services-aware MPLS Traffic EngineeringF. Le Faucheur, W. Lai | Informational | July 2003 |