[msbhvn]

Just to be clear, "TCP Sucks", despite successfully running the majority of the global Internet traffic. "TCP Sucks" so bad we're basically going to copy a lot of it: window based congestion control, SACK, timestamps, ability to add new options, etc. "TCP Sucks" because it is not perfect and has an issue, an issue that requires router / switch upgrades. We're going to fix that by breaking backward compatibility with _tons_ of applications and requiring an OS update on _every_ client and/or application. All this assuming our relatively new and unproven thing is as good as TCP in all other ways and fixes this issue of TCP perfectly.

Hmmm. Me thinks that TCP does not suck so much.

[romaniv]

Sounds like "it kind of worked so far, so let's use it forever, with multiple layers of band-aids if necessary". Besides, unles I'm missing something, the two protocols can be used side-by-side, I.e. you can slowly phase one out by the other where necessary.

[bramcohen]

Did you read the article or just the headline?

[msbhvn]

I did read it, guess I just got too caught up in the title to brush it off (looks like some others here also wondered about that).

Anyway, uTP looks cool, LEDBAT sounds very interesting and BitTorrent is of course, completely awesome. I just don't think TCP sucks. I'm constantly surprised at how well it works for how simple most of it is and how complicated and intractable the rest is.