Hi Thanks for the input, seems like it is just an unnecessary complication to run on an MS-Windows PC.
/Ingemar > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Piers O'Hanlon > Sent: den 21 augusti 2009 11:40 > To: Ingemar Johansson S > Cc: tsv-area; iccrg; Colin Perkins; carlberg; Mikael Abrahamsson > Subject: Re: [tsv-area] Testing ECN support for UDP flows > > 2009/8/21 Mikael Abrahamsson <[email protected]>: > > On Fri, 21 Aug 2009, Ingemar Johansson S wrote: > > > >> Tried with an MS-Windows version of tracert (ftrace), it > was supposed > >> to be able to set the ToS field. However it seems like when I run > >> wireshark that the modified ToS field does not stick, it could be > >> some Windows specific feature that simply clears the ToS field. I > >> will try some traceroute tests on our Linux boxes next > week when I really start working. > >> It could be that this will do. > > > > http://technet.microsoft.com/en-us/magazine/2007.02.cableguy.aspx > > > > In some versions of Windows you have to change the registry to be > > allowed to set any TOS bits, perhaps this is what's missing? > > > Yes and as Jonathon Lennox pointed out in the AVT WG it's no > longer possible to set the TOS bit directly in Vista (the > registry tweak no longer works) as mentioned in the above > article. It seems one has to use their QoS APIs and I don't > think they allow you to touch the ECN bits. > > Piers > > > -- > > Mikael Abrahamsson email: [email protected] > > >
