Update on the Internet Research Task Force

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Presentation transcript:

Update on the Internet Research Task Force Aaron Falk IRTF Chair IETF-75 – Stockholm

IRTF Status Five Research Groups (RGs) are meeting this week Delay Tolerant Networking RG Routing RG Host Identity Payload RG Peer-to-Peer RG Internet Congestion Control RG Reviewed the DTNRG with the IAB IETF-75 -- Stockholm

IRTF Status Still working on IRTF RFC Stream desired copyrights Intent is to maximize commonality with IETF process (use IETF trust, ID boilerplate, etc) Permit unlimited derivative works, no derivative works 0 IRTF RFCs published since last IETF 5 docs waiting Publication is (still) wedged on finalizing: draft-iab-streams-headers-boilerplates draft-housley-iesg-rfc3932bis IETF-75 -- Stockholm

IRTF Status (2) New RG chartered: Public Key Next- Generation Research Group (PKNG) Looking into alternate certificate formats, semantics, and PK services that could eventually replace PKIX if deployed Paul Hoffman, chair Network virtualization still cooking IETF-75 -- Stockholm

RG Energy Levels Active Quiescent ASRG CFRG DTNRG HIPRG ICCRG MOBOPTS P2PRG RRG E2ERG NMRG SAMRG TMRG (Unchanged* from IETF-74) IETF-75 -- Stockholm

A brief introduction to a couple of research groups…

Host Identity Protocol Research Group

Present Dual Role of IP Addresses IP addresses in present Internet serve two roles Identifying the host during communication Locating the host within Internet routing system Applications and transport protocols use IP addresses directly During mobility transport connections break down and applications can fail IETF-75 -- Stockholm

Host Identity Protocol HIP is a host-based approach to implement identifier/locator split in the Internet Host are identified with self- generated public-private keys Secure support for mobility, multihoming, IPsec encapsulation RFC4843, RFC5201-5207 First commercial HIP products have been announced IETF-75 -- Stockholm

HIPRG in a Nutshell RG exists in parallel with HIP WG Has met nearly at all IETFs since 2004 Focuses on discussing ideas not yet ready for IETF process Has matured and migrated several drafts to WG: NAT traversal, native API, certificates, support for legacy applications A forum to present HIP extensions and experiments Working on an experiment report summarizing experience of HIP use IETF-75 -- Stockholm

HIPRG Status RG currently works on number of HIP extensions The use of HIP for object identification ”Internet of Things” Hierarchical HIT, host ID revocations ID to locator resolution using DHT and DNS Mobile router extensions Published RFC5207 ”NAT and Firewall Traversal Issues of Host Identity Protocol (HIP) Communication” Updates on HIP experiments for P2PSIP, Teredo, BodyNets, Secure Mobile Architecture Completing the experimental report (draft-irtf-hip- experiment-04) If you’ve been playing with HIP, please give us feedback! IETF-75 -- Stockholm

HIPRG Plans Adopt a few drafts as RG items based on the sustained interest of participants Help WG in promoting HIP to standard track Encourage IETFers to install and try HIP on their computers E.g., a good solution for road warriors to access files at home server “Mobile VPN” The current HIP implementations: http://www.openhip.org, http://hipl.infrahip.net, http://www.hip4inter.net More info HIP article in the IP Journal (March 09), a book at http://www.hipbook.net/ IETF-75 -- Stockholm

Internet Congestion Control Research Group

ICCRG – Motivation, Background OS Implementers IETF Transport Area Research Community ICCRG Standard TCP congestion control is not fit for today‘s Internet Slow with high b*d links, issues with wireless, etc. Also not the right choice for all applications Increasing deployment of non- standardized high-speed TCP variants e.g. C-TCP (included in Windows Vista), CUBIC (default in some Linux distributions), H-TCP, and others The ICCRG considers new directions and techniques for congestion control in the context of the Internet IETF-75 -- Stockholm

What ICCRG is Doing ... Future Vision Existing RFCs Open Issues Organizing the existing congestion control related RFCs ICCRG wrote a roadmap (in RFC-Editor Queue) http://www.ietf.org/id/draft-irtf-iccrg-cc-rfcs-07.txt Identifying real, open issues with current congestion control techniques; many motivated by IETF WG-identified issues ICCRG wrote a survey http://tools.ietf.org/id/draft-irtf-iccrg-welzl-congestion-control-open-research-04.txt Creating a vision to move beyond current limitations of TCP-friendliness concepts ICCRG design team on a capacity sharing architecture http://trac.tools.ietf.org/group/irtf/trac/wiki/CapacitySharingArch Existing RFCs TCP, SCTP TFRC Multicast etc Open Issues Heterogeneity Stability Fairness … (many more) Future Vision Architecture Network Role End-host Role IETF-75 -- Stockholm

This week in the ICCRG The Future of Congestion Control: Feedback From An Implementer's Perspective Report related to evaluation of CUBIC and H-TCP as experimental TCP congestion control mechanisms Beyond TCP-friendly Design Team & Internet Capacity- Sharing Architecture Vision for enabling capacity sharing within the network infrastructure, rather than simply at the end-hosts Research topics: MulTFRC - Congestion control with tunable aggression (“N-TCP- friendliness“) Explicit Feedback on Access Links – Using mechanisms like Quick- Start & XCP on access link bottlenecks even if end-to-end deployment isn‘t possible IETF-75 -- Stockholm

www.irtf.org IETF-75 -- Stockholm