sunnuntai 17. toukokuuta 2020

Zürich QUIC Interop


QUIC interop and meeting in Zürich, at the Google offices (thanks Brian etc!) There are 15 implementations to test with the other 15 and for each test,19 main features to look at. That's a lot of tests but given the role of these implementations in various operating systems and network equipment, it also needs to work :-) From my point of view this feels more focused on the corner cases than before, so maybe the effort is nearing the end. Although there's probably error cases of the corner cases to still look at :-)

sunnuntai 23. kesäkuuta 2019

No batteries, no shower


No batteries, no shower.

One of the not so good purchases ... an electrically operated shower controller. It may run out of power during holidays, in which case one can't take a shower, and the large batteries aren't available in all stores. It also takes several seconds to turn the shower up or down. And the battery holder design turns out to be leaky.

The only good feature of this design is that it does automatically cut off after five minutes, so there's protection against passing-out-in-shower-and-causing-flood. Also, the shower doesn't send data to anyone for better targeting of advertisements. As far as I know.

Photos and text (c) 2019 by Jari Arkko. All rights reserved.

keskiviikko 3. huhtikuuta 2019

Automated driving... very safe


LinkedIn occasionally sends advertisements for jobs, and today's advertisement caught my attention: someone is looking for software engineers to work on automated driving. The interest part: only 1 year of experience required.

Hopefully the automated driving systems will be built also with some more experienced software engineers...


keskiviikko 30. tammikuuta 2019

Spindump


This week we are in the QUIC interop in Tokyo, working on the new transport protocol that promises to speed up your connections. Or it may already be doing so :-) And since this is the IETF, running code feels more important than just the specs. Marcus Ihlar and I from Ericsson brought our new latency monitoring tool to the the interop. It performs passive, in-network monitoring of connections or sets of connections, without having to peek into the traffic content itself. It supports TCP, QUIC with the Spin bit, COAP, and few other types of traffic.

The software is open source and available here.

Some more thoughts about why QUIC is important can also be found here.

39,000 ft above Siberia


39,000 ft above Siberia seems like a good place to work on latency measurement tech.

Photos (c) 2019 by Jari Arkko. All rights reserved.

Internet of nasty things?


Nice to find updates like this from my helpful health gadget assistant...

(Besides the style, I think this was also incorrect. I've been making real progress in weight reduction in the last two months, slight bump in the new year's period due to travel... but it got rectified soon. And there are always some fluctuations.)

Photo (c) 2019 by Jari Arkko. All rights reserved.

maanantai 4. kesäkuuta 2018

QUIC Interim


This week's program is the IETF QUIC working group's interim meeting that we are hosting in Kista. QUIC is a new, efficient and secure transport protocol that promises to deliver content on your screens a tiny bit faster and more reliably than TCP. And, perhaps more importantly, once defined, it can be changed much more easily than previous protocols. My colleague Zahed writes more about it in his blog post.

So far the meeting has been about hacking implementations of QUIC, later we'll get to the actual WG meeting part. And, we will be at this even on Wednesday despite it being the Swedish national day; hopefully we can acquire some flags to celebrate the occasion though :-)




Photos (c) 2018 by Jari Arkko. All rights reserved.