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0x12: BoF: Congestion Control for Cellular Wireless Networks
by Jamal Hadi Salim 19 Jun '18

19 Jun '18

The program committee has accepted a BoF session. Cellular networks exhibit significant variations in bottleneck link rates even over short time durations. AQM techniques like fq-codel with ECN feedback are insufficient. It is challenging to properly evaluate congestion control approaches over cellular network paths; it gets difficult when it involves in-network mechanisms, since it is not easy to deploy a test network running new network-layer mechanisms in such setups. Hari Balakrishnan et al will lead a BoF discussion to help formalize the constraints of the problem and formulate ways in which the community should evaluate congestion control protocols for cellular networks. This BOF will put forward an evaluation technique involving collection of real-world cellular network traces and then replaying them on Linux based infrastructure. The Mahimahi toolset facilitates such a setup utilizing Linux containers. This approach allows for experimenting and validating newly coded algorithms on Linux in an accurate environment. To kick things off in this BoF and frame future discussions, Hari et will illustrate how to use collected traces and evaluate the Accel-Brake Control (ABC) approach using the Mahimahi toolset. More info at: https://www.netdevconf.org/0x12/session.html?congestion-control-for-cellula… cheers, jamal

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0x12: Call for Bits, Nibbles, Bytes, and Words Participation
by Jamal Hadi Salim 18 Jun '18

18 Jun '18

This is an invitation to participate in the "Bits, Nibbles, Bytes and Words" event at Netdev 0x12 on the 12th of July, 2018[1]. If you are working on a project that is open source or on protocols that are open and tied to Linux Networking then you are eligible. We will provide either a table or a spot on a table for you at the event where you can demo or talk about your project to attendees and their companions as well as our sponsors. There will be electrical power and wifi available at the tables. This opportunity is offered free of charge to you but we have limited spots since we need time to prepare. Send your request to info(a)netdevconf.org Deadline for submission is June 29th. cheers, jamal [1]https://www.netdevconf.org/0x12/news.html?bits-nibbles-bytes-and-words

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0x12: New Event! Bits, Nibbles, Bytes and Words
by Jamal Hadi Salim 18 Jun '18

18 Jun '18

The Bits, Nibbles, Bytes and Words event will be held on day 2 of Netdev 0x12 conference at the outdoor terrace of the Hyatt Regency on July 12th at 6 pm[1] with a beautiful view of downtown Montreal. We will be serving cocktails, bits and bites and an opportunity to network between attendees, sponsors, and open source linux networking projects. Food bits will be nibbled on, bitten into, and words (only big words, the best words!) will be exchanged! This event is open to all attendees and anyone accompanying them to the conference (family members, etc - dont have to be registered). We just ask that if you are bringing someone just let the registration desk know when you pick your badge so we can plan better for food and drinks. We will have tables for sponsors for marketing and recruiting. We will also provide a table for any project that is open to make attendees aware of their work (we will send out a separate note requesting open source projects to request for space). cheers, jamal [1]https://montreal.regency.hyatt.com/multimedia/fr/regency/mtlrm/gateway.im…

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0x12: New Nuts-n-Bolts Talk! UDP segmentation offload
by Jamal Hadi Salim 15 Jun '18

15 Jun '18

UDP segmentation was recently introduced to the Linux kernel. In this talk, Boris Pismenny and Yossi Kupperman present their efforts towards supporting UDP segmentation offload with existing net devices. They will talk about limitations they encountered and how they overcame them. Based on these experiences, Boris and Yossi have some suggestion on how to improve the Linux networking stack to generalize their work and make driver development easier. More info at: https://www.netdevconf.org/0x12/session.html?udp-segmentation-offload cheers, jamal

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0x12: New Workshop! Achieving super low latency for critical real world Internet applications
by Jamal Hadi Salim 14 Jun '18

14 Jun '18

Field applications and IoT require low latency (we are talking Sub 10 msecs), high throughput and secure, and highly reliable communications. Think traffic intersection monitoring, remote surgery, industrial robotics, etc. How do we get there on Linux? Tom Herbert will chair a session which goes into these requirements. He will try to motivate the discussion with a live physical demo of traffic intersection using a slot car track. More info at: https://www.netdevconf.org/0x12/session.html?achieving-super-low-latency-fo… cheers, jamal

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test
by Jamal Hadi Salim 13 Jun '18

13 Jun '18

Please ignore this email cheers, jamal

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testing
by Jamal Hadi Salim 13 Jun '18

13 Jun '18

1 2 3 can you hear me? cheers, jamal

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0x12: Bronze sponsor! Secunet
by Jamal Hadi Salim 13 Jun '18

13 Jun '18

We are pleased to announce secunet as a bronze sponsor. Thank you secunet for your continued support of the netdev conference. More information: https://www.netdevconf.org/0x12/news.html?bronze-sponsor-secunet cheers, jamal

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0x12: Bronze sponsor! Secunet
by Jamal Hadi Salim 13 Jun '18

13 Jun '18

We are pleased to announce secunet as a bronze sponsor. Thank you secunet for your continued support of the netdev conference. More information: https://www.netdevconf.org/0x12/news.html?bronze-sponsor-secunet cheers, jamal

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0x12: Moonshot talk! Composing and configuring complex network interfaces on NICs that contain a switch
by Jamal Hadi Salim 12 Jun '18

12 Jun '18

New Moonshot talk accepted! With the emergence of switchdev as the canonical NIC-switch representation comes the view that we need to expose each switch port as a singular netdev. There is, however, an impedance mismatch between that model and a few important use cases. Take for example the need to scale performance of high speed ports; where a reasonable approach is to spread a single NIC-switch port's traffic across multiple PCIe devices. A single netdev representation doesnt cut it for that scenario. There are other use cases of which involve hierarchies of VMs/containers where more of these issues emerge - for these use cases there have been discussions to use 2 or 3 netdev layers; however, even there some challenges emerge. Anjali Singhai Jain and Sridhar Samudrala make the arguement that the switchdev port representor as is is not the best fit for these use cases. In this talk they are putting forth a proposal that they feel will cater to various use case needs while maintaining strong control over the resources proposed by the switchdev model. More info at: https://www.netdevconf.org/0x12/session.html?composing-and-configuring-comp… cheers, jamal

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