Update on the Internet Research Task Force

Aaron FalkIRTF Chair

IETF-76 – Hiroshima

IRTF Meetings

• Four Research Groups (RGs) are meeting this week– Host Identity Payload RG– Scalable, Adaptive Multicast RG– Delay Tolerant Networking RG– Routing RG

• Reviewed the RRG with the IAB

IETF-76 -- Hiroshima

IRTF RFCs

• 0 IRTF RFCs published since last IETF– 6 docs waiting

• Publication is wedged on finalizing IETF Trust License– Expected around end of the year

• draft-irtf-rfcs-05.txt revised, now in RFC-Editor queue– Consistent with Independent Stream publication

rights language (draft-braden-independent-submission-02.txt)

IETF-76 -- Hiroshima

New Work

• Network virtualization– Bar BoF tonight, 1730 – 1930, Castleview 1– Discussing a draft RG charter

• Internet of Things/Smart Objects– Some interest in an RG, perhaps around

architecture– Will be careful about not interfering with SmartGrid

work (if any)

IETF-76 -- Hiroshima

RG Energy Levels

Active• ASRG• CFRG• DTNRG• HIPRG• ICCRG• MOBOPTS• P2PRG• RRG• SAMRG

Quiescent• E2ERG• NMRG• TMRG• PKING

IETF-76 -- Hiroshima

A brief introduction to a couple of research groups…

Anti-SpamResearch Group

What is the ASRG?

• Open membership for anti-spam research• Look at open problems• Perhaps suggest areas for standards• People: some industry, some academic,

many independent

IETF-76 -- Hiroshima

What isn't the ASRG?

• Not a working group (see DKIM)• Not a trade group (see MAAWG, ESPC)• Not a conference series (see CEAS,

Usenix, ...)

IETF-76 -- Hiroshima

Successes to date

• RFC on details of DNS black/whitelists– In RFC Ed queue

• Draft on blacklist management– Authors waiting to see if prior RFC ever gets

published

IETF-76 -- Hiroshima

Limited successes to date

• Taxonomy of anti-spam techniques– Slow progress via wiki

• Taxonomy of spamming techniques– Slower progress via wiki

• http://wiki.asrg.sp.am

IETF-76 -- Hiroshima

Why not more active?

• Researchers more aimed at publishing• Very hard problems

– e.g., try to compare two spam filters• Useful to describe “folklore”

– Much is widely used, poorly documented• Mailing list

– Free consulting on anti-spam techniques, avoids many reinvented wheels

IETF-76 -- Hiroshima

Scalable, Adaptive Multicast Research Group

Scalable Adaptive Multicast (SAM) RG

• Problem Space– ALM that uses native multicast where

available– Unified multicast over diverse networks– Group membership management

• Chairs– John Buford and Thomas Schmidt

• Communities represented in SAM RG– ALM in P2P overlays– XCAST– Native multicast– Streaming in mobile networks– Applications

• Interim meetings to foster collaboration with research community

NativeMulticast

Overlay/ALM

AMT

Network

ALM

Hybrid

IETF-76 -- Hiroshima

Hybrid Multicast Framework & Overlay Protocol

Framework• Example hybrid tree using native

multicast (N), overlay layer multicast (A), and AMT

• draft-irtf-sam-hybrid-overlay-framework-02

Protocol• Example message types for Tree

Lifecycle:– Create Tree– Join– Join Via AMT Gateway– JoinWithNativeLink

• draft-buford-irtf-sam-overlay-protocol-01

IETF-76 -- Hiroshima

Common Access to Hybrid Multicast

Overall objective: pave the way for a universal multicast use by applications and thus facilitate deployment

•Approach: Define a common access technology to hybrid multicast at end systems by

– A common API MCast programming with namespace support

– Middleware that ensures mcast activation and namespace mapping at end systems & gateways

•draft-waehlisch-sam-common-api-01•draft-lim-irtf-sam-alm-api-00.txt

IPv6Member

G

IPv4

IPv6

Member “CNN”

Member <sip:*@peanuts.org>

Member G

Member <sip:*@peanuts.org>

Member “CNN”

Future Work: SAM Simulation Environment

• TCP• UDP• IP• ICMP• OSPFv2• ARP• Ethernet MAC• Network Topology

OMNet++

INET

OverSIm

Needed for SAM:• IGMPv3• MLDv2• AMT - underway• PIM - incomplete• XCAST - Done

• Various structured overlays (Chord, Kademlia, Pastry, …)

• “Simple” Topology and more realistic topologies

• ALM• P2P-SIP

Needed for SAM:• Coupling of ALM

with Native layer

www.omnetpp.org

www.oversim.org

inet.omnetpp.org

IETF-76 -- Hiroshima

Future Work: Hybrid Multicast Testbed

• Sites support overlay multicast in WAN and local native multicast

• Purpose: study SAM RG protocols• May integrate with several other testbeds: GENI, G-LAB,

…

Hybrid Multicast TestbedInitial Sites

Node Components

IETF-76 -- Hiroshima

www.irtf.org

IETF-76 -- Hiroshima