Multipath TCP

[@tejislive]

crazy amazing, I am just 10 years late in bulding my own OpenMPTCP Router on Raspberry Pi... Amazing Amazing Amazing. THANK YOU SO MUCH

[@JustinMayfield]

For the love of god, reserve Q&A for after the talk next time!

[@trhosking]

Interesting subject, but I lost patience when the audience were allowed to hijack the session with inaudible questions which should have been left until the end.

[@cpaasch11]

This per-packet load-balancing is almost never used, because it introduces reordering of the packets. If you have reordering, TCP's performance will suffer a lot because 3 duplicate ACKs trigger a fast retransmit and the congestion window will be divided by two.

[@minomassimo9309]

Dear prof. Christoph paaschI was asking if it can possible to send to me the explanation of this presentation for MPTCP thank you

[@olivierbonaventure]

From a protocol design viewpoint, SCTP is cleaner, but SCTP does not go through the various types of middleboxes that exist in today's Internet and it requires changes to the applications. Mutlipath TCP works with existing applications in today's Internet.

[@RifatErdemSahin]

Stream Control Transmission Protocol (SCTP) is this one netflix uses?

[@olivierbonaventure]

Costin also gave a talk at USENIX NSDI on Multipath TCP. The video quality of this talk is better. Search for "How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP"

[@RifatErdemSahin]

is there alternative projects to this one www.openmptcprouter.com/ it has been 8 years now

[@madoksback]

Would love know what's happened since this video was published?

[@RifatErdemSahin]

does it make sense to invest in openmptcprouter.com using openwrt ? I am planning to increase uploads to google servers with a vps located in GCP

[@6Diego1Diego9]

How does this work with spanning tree protocol?

[@hyperthreaded]

I don't get it. TCP is "single-path"? Isn't TCP done in the endpoints only? The routers don't know about TCP, and if you have some dynamic, load-based routing scheme in place in your network, each packet of the connection can use a different path.

[@teckforce37]

questions should not be allowed if they aren't mic'ed.

[@diakbar]

is there any effects with link-aggregation with multiple interface? o.o

[@RavikumarTulugu]

I am unable to understand why all this is needed at all ? why cant we have the tcp stack run on aggregated ethernet ?

[@RifatErdemSahin]

read www.openmptcprouter.com/

[@fnyklr]

Why are they bothering creating new stuff when they are about pull the plug on the entire internet?

[@cooderxue2376]

现在都5G时代了，不知道当前支持mptcp的系统覆盖怎么样呢

[@svommams566]

The spanning tree is operating at a lower layer. What will happen at the MPTCP layer will depend on what the spanning tree protocol will do at the lower layer. It may be the spanning tree protocol simply disables redundant link, in that case you obviously won't get any performance benefit from those links. You may get better performance by using IP rather than Ethernet, since IP has better support for alternative paths.

[@diakbar]

I thinks it should turning up multiple interface...

[@dpiercey]

Care to elaborate a little bit?

[@RifatErdemSahin]

www.openmptcprouter.com/ check the project

[@olivierbonaventure]

There is a Linux kernel patch porting it to Android should not be too difficult

[@RifatErdemSahin]

it is ....we still dont a great solution on this

[@svommams566]

Three reasons: Aggregated Ethernet will still send all packets from a TCP connection over just one of the aggregated links, because TCP doesn't deal well with reordering. If you are using different carriers you need to use different IPs for packets you send due to filtering of spoofed IP addresses. And to receive packets on both interfaces, they must be send to your different IP addresses.

[@RifatErdemSahin]

MPTCP does its own ordering right in the VPS and in the client ?

[@Lukx33]

Somehow I like SCTP more

[@9164312]

喔喔喔喔喔!!!!!!!!!!

[@olivierbonaventure]

Multipath TCP does this

[@Orbofs]

That guy in plaid needs to STOP ASKING QUESTIONS EVERY DAMN MINUTE.

[@RifatErdemSahin]

he is me. why do you care ?

[@doug65536]

Another unintelligible Google talk. Speakers should know that saying 5 words per second defeats the entire purpose of speaking at all.

[@emperorkang]

interesting...