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