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Rough Guide to IETF 99: Scalability & Performance

In this post I’ll highlight some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) groups meeting during the IETF 99 meeting in Prague next week. These groups are working to explore and address more sophisticated ways to use and share available bandwidth, improve Internet performance, and otherwise efficiently get Internet content to where it needs to be.

Monday afternoon in Prague will be the second BoF meeting for BANdwidth Aggregation for interNet Access (banana). This BoF will discuss methods to take advantage of multiple access links, provided by one or more access providers, in cases where end nodes and applications may not be multi-access aware. Use of multiple access links could provide bandwidth aggregation when multiple links are available (i.e. improved performance), and session continuation when a link becomes unavailable (i.e. increased reliability).

The tsvwg WG has many documents under discussion on topics including diffserv, ECN, and UDP options. The WG has two meetings on Tuesday and Thursday afternoons.

The mptcp WG will be meeting on Tuesday and Friday afternoons to discuss the latest developments and proposed improvements to the Multipath TCP protocol. MPTCP support in iOS11 was announced during WWDC2017.

One of the most active new IETF WGs is QUIC. QUIC is a UDP-based transport protocol that provides multiplexed streams over an encrypted transport. QUIC aims to be nearly equivalent to an independent TCP connection, but with much reduced latency and better stream multiplexing support. The quic WG is meeting on Thursday afternoon and Friday morning in Prague.

Measurement techniques and data sources that could help us to make better engineering decisions to work around some of the rigidity in the protocol stack will be the subject of the Measurement and Analysis for Protocols (maprg) research group meeting on Thursday morning.

Packet networks give rise to transient congestion by design and several groups are meeting to discuss different aspects of congestion control and avoidance. The Internet Congestion Control research group (iccrg) will meet on Monday afternoon to discuss some of the latest innovations and thinking in relation to congestion control and managing congestion on the Internet. The meeting will include an update on TCP Prague ideas and an update on the BBR congestion control algorithm from Google including experiences with deployment at YouTube. Modifications to the functioning of TCP are proposed, presented and discussed in the tcpm WG which will meet on Monday morning in Prague. Internet metrics are defined by the ippm WG and they are meeting in Prague on Wednesday morning.

And last but not least, the tsvarea open meeting will take place on Monday afternoon.

Related Working Groups and BoFs at IETF 99

banana (BANdwidth Aggregation for interNet Access) BoF
Monday, 17 July 2017, 1550-1720, Grand Hilton Ballroom
Agenda
Draft
Charter

maprg (Measurement and Analysis for Protocols) RG
Thursday, 20 July 2017, 0930-1200, Congress Hall II
Agenda
Charter

iccrg (Internet Congestion Control) RG
Monday, 17 July 2017, 1330-1530, Congress Hall III
Agenda
Charter

quic (QUIC) WG
Thursday, 20 July 2017, 1550-1750, Grand Hilton Ballroom
Friday, 21 July 2017, 0930-1130, Grand Hilton Ballroom
Agenda
Documents
Charter

tcpm (TCP Maintenance and Minor Extensions) WG
Monday, 17 July 2017, 0930-1200, Karlin I/II
Agenda
Documents
Charter

mptcp (Multipath TCP) WG
Tuesday, 18 July 2017, 1550-1750, Athens/Barcelona
Friday, 21 July 2017, 1150-1320, Congress Hall I
Agenda
Documents
Charter

ippm (IP Performance Metrics) WG
Wednesday, 19 July 2017, 0930-1200, Athens/Barcelona
Agenda
Documents
Charter

tsvarea (Transport Area Open Meeting)
Monday, 17 July 2017, 1740-1840, Grand Hilton Ballroom
Agenda

tsvwg (Transport Area Working Group)
Tuesday, 18 July 2017, 1330-1530, Congress Hall I
Thursday, 20 July 2017, 1810-1910, Congress Hall III
Agenda
Documents
Charter

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There’s a lot going on in Prague, and whether you plan to be there or join remotely, there’s much to monitor. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf99.

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Rough Guide to IETF 98: Scalability and Performance

In this Rough Guide to IETF 98 post I’ll highlight some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) groups meeting during the IETF 98 meeting in Chicago next week. These groups are working to explore and address more sophisticated ways to use and share available bandwidth, improve Internet performance, and otherwise efficiently get Internet content to where it needs to be.

The tsvwg WG will include presentations and discussions on the L4S and DualQ approaches demonstrated at previous meetings. The WG has two meetings on Monday and Thursday afternoons.

The mptcp WG will be meeting on Thursday afternoon to discuss the latest developments and proposed improvements to the Multipath TCP protocol.

One of the most active new IETF WGs is QUIC. QUIC is a UDP-based transport protocol that provides multiplexed streams over an encrypted transport. QUIC aims to be nearly equivalent to an independent TCP connection, but with much reduced latency and better stream multiplexing support. The quic WG is meeting on Thursday morning in Chicago. To help bring the wider IETF community up to speed with QUIC, there will be a tutorial on the Sunday afternoon prior to the meeting week.

Measurement techniques and data sources that could help us to make better engineering decisions to work around some of the rigidity in the protocol stack will be the subject of the recently chartered Measurement and Analysis for Protocols (maprg) research group meeting on Tuesday morning.

Packet networks give rise to transient congestion by design and several groups are meeting to discuss different aspects of congestion control and avoidance. The Internet Congestion Control research group (iccrg) will meet on Monday morning to discuss some of the latest innovations and thinking in relation to congestion control and managing congestion on the Internet. The meeting will include an update on TCP Prague ideas and an update on the BBR congestion control algorithm from Google including experiences with deployment at YouTube. Modifications to the functioning of TCP are proposed, presented and discussed in the tcpm WG which will meet on Wednesday morning in Chicago. Internet metrics are defined by the ippm WG and they are meeting in Chicago on Monday morning.

And last but not least, the tsvarea open meeting will take place on Monday afternoon.

Related Working Groups and BoFs at IETF 98

maprg (Measurement and Analysis for Protocols) RG
Tuesday, 28 March 2017, 0900-1130, Zurich D
Agenda: https://datatracker.ietf.org/meeting/98/agenda/maprg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-maprg/

iccrg (Internet Congestion Control) RG
Monday, 27 March 2017, 0900-1130, Zurich E/F
Agenda: https://datatracker.ietf.org/meeting/98/agenda/iccrg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-iccrg/

quic (QUIC) WG
Thursday, 30 March 2017, 0900-1130, Vevey 1/2
Agenda: https://datatracker.ietf.org/meeting/98/agenda/quic/
Documents: https://datatracker.ietf.org/group/quic/documents/
Charter: https://datatracker.ietf.org/group/quic/charter/
QUIC Tutorial: Sunday, 26 March 2017, 1500-1600, Zurich E/F

tcpm (TCP Maintenance and Minor Extensions) WG
Wednesday, 29 March 2017, 0900-1130, Zurich E/F
Agenda: https://datatracker.ietf.org/meeting/98/agenda/tcpm/
Documents: https://datatracker.ietf.org/group/tcpm/documents/
Charter: https://datatracker.ietf.org/group/tcpm/charter/

mptcp (Multipath TCP) WG
Thursday, 30 March 2017, 1520-1840, Zurich C
Agenda: https://datatracker.ietf.org/meeting/98/agenda/mptcp/
Documents: https://datatracker.ietf.org/group/mptcp/documents/
Charter: https://datatracker.ietf.org/group/mptcp/charter/

ippm (IP Performance Metrics) WG
Monday, 27 March 2017, 0900-1130, Zurich B
Agenda: https://datatracker.ietf.org/meeting/98/agenda/ippm/
Documents: https://datatracker.ietf.org/group/ippm/documents/
Charter: https://datatracker.ietf.org/group/ippm/charter/

tsvarea (Transport Area Open Meeting)
Monday, 27 March 2017, 1300-1650, Zurich E/F
Agenda: https://datatracker.ietf.org/meeting/98/agenda/tsvarea/

tsvwg (Transport Area Working Group)
Monday, 27 March 2017, 1710-1810, Vevey 1/2
Thursday, 30 March 2017, 1300-1500, Zurich A
Agenda: https://datatracker.ietf.org/meeting/98/agenda/tsvwg/
Documents: https://datatracker.ietf.org/group/tsvwg/documents/
Charter: https://datatracker.ietf.org/group/tsvwg/charter/

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There’s a lot going on in Chicago, and whether you plan to be there or join remotely, there’s much to monitor. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf98.

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Rough Guide to IETF 97: Scalability and Performance

In this first post of the Internet Society Rough Guide to IETF 97, I’ll highlight some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) groups meeting during the IETF 97 meeting in Seoul next week. These groups are working to explore and address more sophisticated ways to use and share available bandwidth, improve Internet performance, and otherwise efficiently get Internet content to where it needs to be.

There is one relevant Birds-of-a-Feather (BoF) meeting in Seoul on BANdwidth Aggregation for interNet Access (banana). This BOF will discuss methods to take advantage of multiple access links, provided by one or more access providers, in cases where end nodes and applications may not be multi-access aware. Use of multiple access links could provide bandwidth aggregation when multiple links are available (i.e. improved performance), and session continuation when a link becomes unavailable (i.e. increased reliability). The banana BoF is on Thursday afternoon.

One technology that could be used to address the banana BoF requirements is multipath TCP and the latest issue of IETF Journal includes an article from Olivier Bonaventure and SungHoon Seo on ‘Multipath TCP Deployments‘. The mptcp WG will be meeting on Monday afternoon in Seoul to discuss the latest developments and proposed improvements to the protocol.

QUIC, developed by Google, is a UDP-based transport protocol that provides multiplexed streams over an encrypted transport. QUIC aims to be nearly equivalent to an independent TCP connection, but with much reduced latency and better stream multiplexing support. You can read more about QUIC in this IETF Journal article. After a successful BoF meeting at IETF 96 in Berlin, a new WG has been formed to standardize QUIC’s core transport protocol and the mapping of the transport protocol to the facilities of TLS. The new quic WG is meeting on Tuesday morning in Seoul.

Measurement techniques and data sources that could help us to make better engineering decisions to work around some of the rigidity in the protocol stack will be the subject of the newly-chartered Measurement and Analysis for Protocols (maprg) research group meeting on Thursday morning.

Packet networks give rise to transient congestion by design and several groups are meeting to discuss different aspects of congestion control and avoidance. The Internet Congestion Control research group (iccrg) will meet on Tuesday afternoon to discuss some of the latest innovations and thinking in relation to congestion control and managing congestion on the Internet. A highlight of their agenda is a presentation and discussion of the new BBR congestion controller from Google. The RTP Media Congestion Avoidance Techniques (rmcat) working group is developing and evaluating congestion control algorithms to handle the emerging use of the Internet for real-time audio and video communication. rmcat will meet on Thursday afternoon in Seoul. Modifications to the functioning of TCP are proposed, presented and discussed in the tcpm WG which will meet on Monday morning in Seoul.

For regulators, being able to monitor the performance of networks, and the extent to which congestion or other factors are impacting consumers’ experience of the network is very important. The lmap working group is meeting on Thursday afternoon in Seoul to advance their important work on standardizing a large-scale broadband performance measurement infrastructure. In turn, lmap makes use of metrics defined by the ippm WG and the latter is meeting in Seoul on Monday afternoon.

And last but not least, the tsvarea open meeting will take place on Tuesday afternoon and will include a report from the recent NetDev 1.2 conference in Tokyo. NetDev is the technical conference on Linux networking and presentations there included many innovations that will be finding their way into mainstream Linux and other operating systems in future.

Related Working Groups and BoFs at IETF 97

banana (BANdwidth Aggregation for interNet Access) BoF
Thursday, 17 November 2016, 1330-1500, Park Ballroom 1
Agenda: https://datatracker.ietf.org/meeting/97/agenda/banana/

maprg (Measurement and Analysis for Protocols) RG
Thursday, 17 November 2016, 0930-1100, Grand Ballroom 2
Agenda: https://datatracker.ietf.org/meeting/97/agenda/maprg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-maprg/

iccrg (Internet Congestion Control) RG
Tuesday, 15 November 2016, 1550-1820, Studio 4
Agenda: https://datatracker.ietf.org/meeting/97/agenda/iccrg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-iccrg/

lmap (Large-Scale Measurement of Broadband Performance) WG
Thursday, 17 November 2016, 1330-1500, Studio 3
Agenda: https://datatracker.ietf.org/meeting/97/agenda/lmap/
Documents: https://datatracker.ietf.org/group/lmap/documents/
Charter: https://datatracker.ietf.org/group/lmap/charter/

rmcat (RTP Media Congestion Avoidance Techniques) WG
Thursday, 17 November 2016, 1520-1750, Studio 3
Agenda: https://datatracker.ietf.org/meeting/97/agenda/rmcat/
Documents: https://datatracker.ietf.org/group/rmcat/documents/
Charter: https://datatracker.ietf.org/group/rmcat/charter/

quic (QUIC) WG
Tuesday, 15 November 2016, 0930-1200, Grand Ballroom 1
Agenda: https://datatracker.ietf.org/meeting/97/agenda/quic/
Documents: https://datatracker.ietf.org/group/quic/documents/
Charter: https://datatracker.ietf.org/group/quic/charter/

tcpm (TCP Maintenance and Minor Extensions) WG
Monday, 14 November 2016, 0930-1000, Park Ballroom
Agenda: https://datatracker.ietf.org/meeting/97/agenda/tcpm/
Documents: https://datatracker.ietf.org/group/tcpm/documents/
Charter: https://datatracker.ietf.org/group/tcpm/charter/

mptcp (Multipath TCP) WG
Monday, 14 November 2016, 1330-1530, Park Ballroom 2
Agenda: https://datatracker.ietf.org/meeting/97/agenda/mptcp/
Documents: https://datatracker.ietf.org/group/mptcp/documents/
Charter: https://datatracker.ietf.org/group/mptcp/charter/

ippm (IP Performance Metrics) WG
Monday, 14 November 2016, 1550-1750, Studio 2
Agenda: https://datatracker.ietf.org/meeting/97/agenda/ippm/
Documents: https://datatracker.ietf.org/group/ippm/documents/
Charter: https://datatracker.ietf.org/group/ippm/charter/

tsvarea (Transport Area Open Meeting)
Tuesday, 15 November 2016, 1330-1500, Grand Ballroom 2
Agenda: https://datatracker.ietf.org/meeting/97/agenda/tsvarea/

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There’s a lot going on in Seoul, and whether you plan to be there or join remotely, there’s much to monitor. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf97.

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Rough Guide to IETF 96: Scalability and Performance

In this post I’ll highlight some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) groups meeting as part of the IETF 96 meeting in Berlin next week. These groups are working to explore and address more sophisticated ways to use and share available bandwidth, improve Internet performance, and otherwise efficiently get Internet content to where it needs to be.

The Path Layer UDP Substrate (plus) BoF will take place on Thursday morning. Encryption poses a challenge for cellular networks that use communication metadata to categorise sessions by their service requirements. This BoF session will seek to educate attendees about the realities of cellular networks today, and explore whether there are ways to provide the signals these networks need in the presence of ubiquitous encryption. This meeting is a follow-up activity from the IAB MaRNEW workshop that took place last year.

The Low Latency Low Loss Scalable Throughput (l4s) BoF will take place on Tuesday afternoon. With increases in Internet access link bit rates, latency not bandwidth is becoming the critical performance factor for most popular applications. This means that often all of a user’s applications at any one time require low latency. L4S addresses this case by making scalable congestion control safe to deploy on the Internet.

QUIC, developed by Google, is a UDP-based transport protocol that provides multiplexed streams over an encrypted transport. QUIC aims to be nearly equivalent to an independent TCP connection, but with much reduced latency and better stream multiplexing support. This BoF proposes a working group to standardize QUIC’s core transport protocol and the mapping of the transport protocol to the facilities of TLS.

Measurement techniques and data sources that could help us to make better engineering decisions to work around some of the rigidity in the protocol stack will be the subject of the proposed Measurement and Analysis for Protocols (maprg) research group meeting on Monday evening.

Packet networks give rise to transient congestion by design and several groups are meeting to discuss different aspects of congestion control and avoidance. The Internet Congestion Control research group (iccrg) will meet to discuss some of the latest innovations and thinking in relation to congestion control and managing congestion on the Internet. In Berlin, the ICCRG meeting is focused around a special theme: Congestion Control for Cellular Networks. The RTP Media Congestion Avoidance Techniques (rmcat) working group is developing and evaluating congestion control algorithms to handle the emerging use of the Internet for real-time audio and video communication.

For regulators, being able to monitor the performance of networks, and the extent to which congestion or other factors are impacting consumers’ experience of the network is very important. The lmap working group is meeting in Berlin to advance their important work on standardizing a large-scale broadband performance measurement infrastructure.

Related Working Groups and BoFs at IETF 96

plus BoF (Alternatives to Content Classification for Operator Resource Deployment)
Thursday, 21 July 2016, 1000-1230, Potsdam I
Agenda: https://datatracker.ietf.org/meeting/96/agenda/plus/

maprg (Proposed Measurement and Analysis for Protocols Research Group) RG
Monday, 18 July 2016, 1800-2000, Potsdam I
Agenda: https://datatracker.ietf.org/meeting/96/agenda/maprg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-maprg/

iccrg (Internet Congestion Control) RG
Thursday, 21 July 2016, 1620-1820, Bellevue
Agenda: https://datatracker.ietf.org/meeting/96/agenda/iccrg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-iccrg/

lmap (Large-Scale Measurement of Broadband Performance) WG
Friday, 22 July 2016, 1000-1200, Charlottenburg II/III
Agenda: https://datatracker.ietf.org/meeting/96/agenda/lmap/
Documents: https://datatracker.ietf.org/wg/lmap/
Charter: http://datatracker.ietf.org/wg/lmap/charter/

rmcat (RTP Media Congestion Avoidance Techniques) WG
Tuesday, 19 July 2016, 1000-1230, Potsdam II
Agenda: https://datatracker.ietf.org/meeting/96/agenda/rmcat/
Documents: https://datatracker.ietf.org/wg/rmcat/
Charter: http://datatracker.ietf.org/wg/rmcat/charter/

l4s (Low Latency Low Loss Scalabale throughput) BoF
Tuesday, 19 July 2016, 1400-1600, Potsdam I
Agenda: https://datatracker.ietf.org/meeting/96/agenda/l4s/

quic (QUIC) BoF
Tuesday, 19 July 2016, 1000-1230, Potsdam I
Agenda: https://datatracker.ietf.org/meeting/96/agenda/quic/

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There’s a lot going on in Berlin, and whether you plan to be there or join remotely, there’s much to monitor. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf96.

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Rough Guide to IETF 95: Scalability and Performance

In this post I’ll highlight some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) groups meeting as part of the IETF 95 meeting in Buenos Aires next week. These groups are working to explore and address more sophisticated ways to use and share available bandwidth, improve Internet performance, and otherwise efficiently get Internet content to where it needs to be.

Measurement techniques and data sources that could help us to make better engineering decisions to work around some of the rigidity in the protocol stack will be the subject of the proposed Measurement and Analysis for Protocols (maprg) research group meeting on Monday morning. The agenda for the session includes a presentation on the results Apple have obtained from their use of beta software for wide-area measurements.

The Alternatives to Content Classification for Operator Resource Deployment (accord) BoF will take place on Thursday morning. Encryption poses a challenge for cellular networks that use communication metadata to categorise sessions by their service requirements. This BoF session will seek to educate attendees about the realities of cellular networks today, and explore whether there are ways to provide the signals these networks need in the presence of ubiquitous encryption. This meeting is a follow-up activity from the IAB MaRNEW workshop that took place last year.

On Tuesday, Applied Networking Research Prize winners Zakir Durumeric and Roya Ensafi will present their research results. Zakir will talk about a detailed study of email security and Roya will present her analysis of the Great Firewall of China.

Packet networks give rise to transient congestion by design and several groups are meeting to discuss different aspects of congestion control and avoidance. The RTP Media Congestion Avoidance Techniques working group is developing and evaluating congestion control algorithms to handle the emerging use of the Internet for real-time audio and video communication. The Internet Congestion Control research group (iccrg) will meet to discuss some of the latest innovations and thinking in relation to congestion control and managing congestion on the Internet.

For regulators, being able to monitor the performance of networks, and the extent to which congestion or other factors are impacting consumers’ experience of the network is very important. The lmap working group is meeting in Buenos Aires to advance their important work on standardizing a large-scale broadband performance measurement infrastructure.

Related Working Groups and BoFs at IETF 95

accord BoF (Alternatives to Content Classification for Operator Resource Deployment) BoF
Thursday, 7 April 2016, 1000-1230, Pacifico A
Agenda: https://datatracker.ietf.org/meeting/95/agenda/accord/

irtfopen (IRTF Open Meeting)
Tuesday, 5 April 2016, 1000-1230, Pacifico A
Agenda: https://datatracker.ietf.org/meeting/95/agenda/irtfopen/

maprg (Proposed Measurement and Analysis for Protocols Research Group) RG
Monday, 4 April 2016, 1550-1720, Pacifico A
Agenda: https://datatracker.ietf.org/meeting/95/agenda/maprg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-maprg/

iccrg (Internet Congestion Control) RG
Monday, 4 April 2016, 1400-1530, Buen Ayre A
Agenda: https://datatracker.ietf.org/meeting/95/agenda/iccrg/
Charter: https://datatracker.ietf.org/doc/charter-irtf-iccrg/

lmap (Large-Scale Measurement of Broadband Performance) WG
Tuesday, 5 April 2016, 1400-1600, Buen Ayre A
Agenda: https://datatracker.ietf.org/meeting/95/agenda/lmap/
Documents: https://datatracker.ietf.org/wg/lmap/
Charter: http://datatracker.ietf.org/wg/lmap/charter/

rmcat (RTP Media Congestion Avoidance Techniques) WG
Wednesday, 6 April 2016, 1000-1230, Atlantico B
Agenda: https://datatracker.ietf.org/meeting/95/agenda/rmcat/
Documents: https://datatracker.ietf.org/wg/rmcat/
Charter: http://datatracker.ietf.org/wg/rmcat/charter/

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There’s a lot going on in Buenos Aires, and whether you plan to be there or join remotely, there’s much to monitor. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf95.

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Rough Guide to IETF 91: Bandwidth, Scalability, and Internet Performance

In this post I’ll shine a light on some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) efforts underway to explore and address more sophisticated ways to use available bandwidth, improve Internet performance, and otherwise efficiently get content to where it needs to be. These groups will all be meeting as part of the IETF 91 meeting in Honolulu next week.

The Deterministic Networking (detnet) BoF will explore the feasibility of extending IEEE Audio Video Bridging to routed networks. The IEEE standard provides time synchronization and precise scheduling for zero congestion loss and finite latency for reserved layer-2 streams. The need to extend these QoS features to routed networks is now emerging for industrial and vehicular applications. The detnet problem statement contains more detail about the motivations for this work.

Internet performance is to a large extent governed by the way transport protocols operate, and the tcpm WG will be meeting to discuss proposed new functionality to improve and enhance the working of TCP, the main transport protocol used on the Internet today.

Packet networks give rise to transient congestion by design and several groups are meeting to discuss different aspects of congestion control and avoidance (aqm, iccrg and rmcat). For regulators, being able to monitor the performance of networks, and the extent to which congestion or other factors are impacting consumers’ experience of the network is very important. The lmap working group is meeting in Honolulu to advance their important work on standardizing a large-scale broadband performance measurement infrastructure.

Reducing Internet latency is important to us at the Internet Society and in the IRTF, the proposed research group on the subject of data centre latency control (dclcrg) will meet again at IETF 91. In recent years a number of techniques have been documented in the research literature on reducing latency for applications running in large data centres and this research group seeks to develop shared problem statements, solutions and other experimental tools.

Related Working Groups and BoFs at IETF 91

tcpm (TCP Maintenance and Minor Extensions) WG
Monday, 10 November 2014, 0900-1130 HST, Hibiscus
Agenda: https://datatracker.ietf.org/meeting/91/agenda/tcpm/
Documents: https://datatracker.ietf.org/wg/tcpm/
Charter: http://datatracker.ietf.org/wg/tcpm/charter/

aqm (Active Queue Management and Packet Scheduling) WG
Monday, 10 November 2014, 1300-1500 HST, Coral 2
Agenda: https://datatracker.ietf.org/meeting/91/agenda/aqm/
Documents: https://datatracker.ietf.org/wg/aqm/
Charter: http://datatracker.ietf.org/wg/aqm/charter/

detnet (Deterministic Networking) BoF
Monday, 10 November 2014, 1520-1720 HST, Coral 1
Agenda: https://datatracker.ietf.org/meeting/91/agenda/detnet/
Draft charter: https://bitbucket.org/pthubert/detnet/src/master/detnet%20charter.txt

dclcrg (Proposed Data Center Latency Control Research Group)
Tuesday, 11 November 2014, 1300-1500 HST, Hibiscus
Agenda: https://datatracker.ietf.org/meeting/91/agenda/dclcrg/

iccrg (Internet Congestion Control Research Group)
Tuesday, 11 November 2014, 1520-1720 HST, Coral 1
Agenda: https://datatracker.ietf.org/meeting/91/agenda/iccrg/
Documents: http://tools.ietf.org/group/irtf/trac/wiki/ICCRG
Charter: https://irtf.org/iccrg

rmcat (RTP Media Congestion Avoidance Techniques) WG
Wednesday, 12 November 2014, 0900-1130 HST, Coral 4
Agenda: https://datatracker.ietf.org/meeting/91/agenda/rmcat/
Documents: https://datatracker.ietf.org/wg/rmcat/
Charter: http://datatracker.ietf.org/wg/rmcat/charter/

lmap (Large-Scale Measurement of Broadband Performance) WG
Thursday, 13 November 2014, 0900-1130 HST, Kahili
Agenda: https://datatracker.ietf.org/meeting/91/agenda/lmap/
Documents: https://datatracker.ietf.org/wg/lmap/
Charter: http://datatracker.ietf.org/wg/lmap/charter/

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There’s a lot going on next week, and whether you plan to be there or join remotely, there’s much to follow. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf91.

 

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Rough Guide to IETF 90: Scalability & Performance

In this post I’ll shine a light on some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) efforts underway to explore and address more sophisticated ways to use available bandwidth, improve Internet performance, and otherwise efficiently get content to where it needs to be. These groups will all be meeting as part of the IETF 90 meeting in Toronto next week.
 
I’ll highlight one birds-of-a-feather (BoF) meeting: The Delay Tolerant Networking (DTN) BoF is looking to investigate interest in transitioning technologies developed in the IRTF DTN research group into standards-track activities through the formation of a new IETF working group. Examples of the sort of environments where DTN solutions may be appropriate include spacecraft, military/tactical, some forms of disaster response, underwater, and some forms of ad-hoc sensor/actuator networks. They may also include Internet connectivity in places where performance may suffer such as developing parts of the world.
 
After their BoF meeting at IETF 89 in London, the Transport Services (TAPS) Working Group has been formed and will have its first meeting in Toronto. The group is wrestling with the problem of how to provide a richer set of transport services to applications without many of the complications that exist today resulting in developers either using TCP or implementing their own customized solution over UDP.
 
The TCPcrypt ‘mini-BoF’ meeting in London has also yielded a new working group and the TCP Increased Security (tcpinc) Working Group will have its first face-to-face meeting to begin work to develop the TCP extensions to provide unauthenticated encryption and integrity protection of TCP streams.
 
In the IRTF, a proposed research group on the subject of data centre latency control (dclcrg) will meet. In recent years a number of techniques have been documented in the research literature on reducing latency for applications running in large data centres and this research group will seek to develop shared problem statements, solutions and other experimental tools.
 
Related Working Groups and BoFs at IETF 90
 
dtnwg (Delay Tolerant Networking Working Group) BoF
WG Agenda: https://datatracker.ietf.org/meeting/90/agenda/dtnwg/
(Wednesday, 23 July 2014, 1520-1650 EDT, Tudor 7/8)
 
taps (Transport Services) WG
Agenda: TBD
Charter: https://datatracker.ietf.org/doc/charter-ietf-taps/
(Monday, 21 July 2014, 1520-1650 EDT, Ballroom)
 
tcpinc (TCP Increased Security) WG
Agenda: https://datatracker.ietf.org/meeting/90/agenda/tcpinc/
Charter: https://datatracker.ietf.org/doc/charter-ietf-tcpinc/
(Thursday, 24 July 2014, 1520-1720 EDT, Tudor 7/8)
 
dclcrg (Proposed Data Centre Latency Control Research Group)
Agenda: https://datatracker.ietf.org/meeting/89/agenda/lmap/
Charter: https://datatracker.ietf.org/wg/lmap/charter/
(Friday, 25 July 2014, 0900-1130 EDT, Ontario)

There’s a lot going on next week, and whether you plan to be there or join remotely, there’s much to follow. To follow along as we dole out this series of Rough Guide to IETF blog posts, follow us on the Internet Technology Matters blog, Twitter, Facebook, Google+, via RSS, or see http://dev.internetsociety.org/rough-guide-ietf90.

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Deploy360 IPv6

FreeBSD IPv6 Performance Analysis Project Brings Parity With IPv4

FreeBSD Foundation LogoThe FreeBSD Foundation posted this week about the completion of a “IPv6 Performance Analysis Project” that had as its main goal closing the gap between IPv4 and IPv6 in terms of performance.

Bjoern Zeeb was awarded a grant to perform this work earlier this year and has maintained a “Benchmarking and results” page showing his work and progress.  As noted in the article:

With IPv6, TCP performance is now basically on par with IPv4 in the offloading case, allowing 10 Gbps line speed connections. This is a huge step forward.  UDP throughput has increased and is closer to the level of IPv4. Changes to locking allowing better parallelism, which is a step in the right direction.

In the FreeBSD Foundation report, Zeeb is quoted as saying “This will help to keep the resource usage at the same level as traffic patterns shift towards IPv6.”  This is indeed a concern. As more traffic shifts to IPv6, particularly with the impending World IPv6 Launch on June 6, 2012, network administrators will want to see the same level of performance in their servers on IPv6 as there is in IPv4.

Kudos to the FreeBSD team for recognizing this issue and undertaking the work – and congrats to Bjoern Zeeb and any others involved on bringing about performance parity in FreeBSD between IPv6 and IPv4.  Great news to hear!