Re: A "Railway Model." Re: Codel and Wireless
Jon Crowcroft <[email protected]> Sat, 07 Dec 2013 16:04:00 +0000
| Newsgroups | gmane.network.end2end |
|---|---|
| Message-ID | <[email protected]> |
you might want to read about how people use layer two congestion signaling from L2 (only) switches to give feedback to TCP which then uses a distributed scheduler to avoid the incast problem alluded to... yes, gasp, layer violation - but it works. so engineers like it In missive <[email protected]>, Detlef Bosau typed: >>Am 07.12.2013 13:12, schrieb Neil Davies: >>> Actually, with worm-hole routed fabrics you can achieve better than 67% [1] for random paths with the right switching architecture. >>> >>Nevertheless, Andrew mixed up the layers. >> >>I'm talking about TCP or equivalent protocols. Not about Layer 2. And >>neither about Ethernet pause frames. >>So, perhaps Andrew wants to have a second look to what I suggested. >>(I gave it more than two thoughts before I wrote it, so one could give >>it two attempts in reading it ;-)) >> >>-- >>------------------------------------------------------------------ >>Detlef Bosau >>Galileistraße 30 >>70565 Stuttgart Tel.: +49 711 5208031 >> mobile: +49 172 6819937 >> skype: detlef.bosau >> ICQ: 566129673 >>[email protected] http://www.detlef-bosau.de >> cheers jon