Prof Olivier Bonaventure introduces Tessares and MPTCP to the EU November 2018. History of MPTCP. Trillium funded. Use Cases. IETF standardisation efforts.

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This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and
demonstration
Tessares – Hearing – 22 November 2018
Prof. Olivier Bonaventure, UC-Louvain & Co-founder, Tessares

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Back in January 2008
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• Start of Trilogy project
with EU funding
– Objective design key components
of future Internet
22 November 2018

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First challenge : revisit TCP
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• Transmission Control Protocol (TCP)
– One of the oldest and most important Internet protocols
– Ensures reliable delivery of data across network and
adapts to network congestion
• Used by most applications (mail, web, video streaming, …)
– Main limitation
• Was designed in the 1970s with the assumption that computers
have a single network interface
22 November 2018

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Limitations of TCP with today's computers
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Celltower
IP 1.2.3.4
IP 5.6.7.8
• Network handover is difficult
22 November 2018

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Limitations of TCP with today's computers
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• TCP cannot use two networks simultaneously
Celltower
IP 1.2.3.4
IP 5.6.7.8
22 November 2018
Many users expect to use both WiFi and cellular

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Multipath TCP : a modern TCP
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• Multipath TCP
– First scientific papers in 2008
– Contributed early to standardisation
• Working group created in late 2009
– Open-source implementation in
Linux kernel drove both research
and standardisation
– 2010 : first public Multipath TCP server
and first Multipath TCP smartphone
22 November 2018

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Multipath TCP : an IETF standard
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• RFC6824 published in January 2013
– Industry can start to use it
• September 2013
– Apple starts to use Multipath TCP to
support Siri (voice recognition)
• handover is key benefit
• All iPhones start to use Multipath TCP
22 November 2018

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Other use cases for Multipath TCP
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• July 2015
– Korean Telecom deploys Multipath TCP
on Samsung and LG smartphones to
aggregate WiFi and LTE
• September 2015
– OVH uses Multipath TCP to combine
different access links (overthebox)
• October 2015
– Tessares demonstrates how Multipath TCP
enables network operators to deploy
hybrid access networks (Hybrid Internet)
22 November 2018

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Multipath TCP allows to aggregate bandwidth
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• By combining different links, Multipath TCP provides
higher bandwidth
FAT Pipe
DSL1
4G/LTE
Multipath TCP
DSL2
TCP
FAT Pipe
22 November 2018
TCP

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Hybrid Internet: high-level architecture
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• A standardised solution to efficiently combine
different access links (e.g. xDSL and 4G)
22 November 2018
4G/LTE
Multipath TCP
DSL
TCP TCP

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Conclusion
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• Multipath TCP is another example of high impact research
funded by European Commission
– Three FP7 projects : Trilogy, CHANGE, Trilogy2
• Initial research ideas go back to 2008
– Open-source implementation had crucial impact
• Standard published in 2013
– Apple deploys Multipath TCP on all iPhones
• 2018
– Multipath TCP is used by Tessares, Nokia, etc to deploy increased
bandwidth Internet access in rural areas with the Hybrid Internet
This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and
demonstration
22 November 2018

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Improving connectivity: addressing different segments
CONFIDENTIAL - Copyright 2018 Tessares All Rights Reserved 1222 November 2018
Segments
Use case
Value
Network
Management
Targets Targets
Combine multiple networks to deliver higher speeds + redundancy (24/7 uptime).
uses existing commercially available
Internet access in locations where fibre is
not practical (poor business case!)
Uses existing commercially available
Internet access, enabling businesses to
partially or wholly replace more expensive
private WAN connection technologies
N/A
Comprehensive ecosystem to support vital
enterprise connectivity.
Hybrid Internet with MPTCP SD-WAN
Residential SME Medium Enterprise
with branches in
rural areas
Large Enterprise
with branches in
rural areas
(1) Hybrid Internet with MPTCP and (2) SD-WAN