Date: Mon, 5 Nov 2018 09:45:33 +0530 From: Pavan Vachhani <vachhanihpavan@gmail.com> To: Richard.Scheffenegger@netapp.com Cc: freebsd-net@freebsd.org Subject: Re: ECN+ Implementation Message-ID: <CACupT8OFLMMdzGcTc3MUL-Y1tDOz9grrzeH=aW-EkJbCxN%2BvSQ@mail.gmail.com> In-Reply-To: <SN4PR0601MB3728CA41C951AC2233730AB686CA0@SN4PR0601MB3728.namprd06.prod.outlook.com> References: <CACupT8OpMw1ZE=0RhuerRBKoDS%2Bmtrzzpj7i9R0N2rD=x9G%2Bmw@mail.gmail.com> <SN4PR0601MB3728CA41C951AC2233730AB686CA0@SN4PR0601MB3728.namprd06.prod.outlook.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi Richard, Thanks for pointing out. Yes, I'll do that but I have a doubt. Currently, I'm planning to complete ECN+ and ECN+/Wait(where it waits for 1rtt before retransmission, instead of time-out) as they are part of my course projects. Then I'll also work on ECN++. So, in sysctl, there is *tcp_do_ecn* which has values as 0: Legacy ECN disabled 1: System will try to initiate ECN enabled connection. 2: Server will not not initiate ECN enabled connection but allow ECN if client wants it. So now, for ECN+, should I add new value '3' to *tcp_do_ecn *or make some new variable which can enabled only if *tcp_do_ecn* == 1? On Mon 5 Nov, 2018, 7:56 AM Scheffenegger, Richard, < Richard.Scheffenegger@netapp.com> wrote: > Hi Pavan, > > Try to make this behavior change dependent on a sysctl, possibly with 3 > different settings (legacy, ECN+, ECN++): > > You may also want to look at ECN++ > https://tools.ietf.org/html/draft-ietf-tcpm-generalized-ecn-03 > > Especially when you are looking to deploy this in Datacenters in > conjunction with DCTCP. > > Best regards, > Richard > > -----Original Message----- > From: owner-freebsd-net@freebsd.org <owner-freebsd-net@freebsd.org> On > Behalf Of Pavan Vachhani > Sent: Samstag, 3. November 2018 20:33 > To: freebsd-net@freebsd.org > Subject: ECN+ Implementation > > NetApp Security WARNING: This is an external email. Do not click links or > open attachments unless you recognize the sender and know the content is > safe. > > > > > Hi, > I am trying to implement ECN+ (rfc5562 < > https://tools.ietf.org/html/rfc5562>) > in FreeBSD. > I am not able to figure out the code where SYN and SYN+ACK is sent and > received. > Please guide me to correct part of code. It was looking into tcp_input.c > and tcp_output.c but couldn't get it for sure. > Sorry for simple questions, I am a beginner. > > Thanks in advance. > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CACupT8OFLMMdzGcTc3MUL-Y1tDOz9grrzeH=aW-EkJbCxN%2BvSQ>