Re: [tcpm] Fwd: Probing the viability of TCP extensions
"Scheffenegger, Richard" <rs@netapp.com> Tue, 22 June 2010 23:14 UTC
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From: "Scheffenegger, Richard" <rs@netapp.com>
To: Lars Eggert <lars.eggert@nokia.com>, Multipath TCP Mailing List <multipathtcp@ietf.org>, tcpm@ietf.org
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Cc: Hannes Tschofenig <hannes.tschofenig@nsn.com>
Subject: Re: [tcpm] Fwd: Probing the viability of TCP extensions
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Adam is a member of the TCPM list :) I am curious, out of the 1,07% of Hosts where ECN negotiation was successful, is there any indication that internet routers are actually making use of the ECT / CE codepoints in the IP header? Ie. When loading a page from those web servers, were any CE marked segments received? Or is ECN only negotiated between hosts, but never actually used to deliver a benefit (which might explain the extremely low adoption rate almost 10 years after standardization. Also, your research was done in 2008 - Microsoft has introduced ECN support with Windows Vista / 7, is there any indication of rising levels of public ECN support, or still a falling trend? I'm asking as there seems to be renewed interest in having ECN-singalling in private networks again... Best regards, Richard Scheffenegger > -----Original Message----- > From: Lars Eggert [mailto:lars.eggert@nokia.com] > Sent: Dienstag, 22. Juni 2010 21:52 > To: Multipath TCP Mailing List; tcpm@ietf.org Extensions > Cc: Hannes Tschofenig > Subject: [tcpm] Fwd: Probing the viability of TCP extensions > > Thanks for the link, Hannes! > > Begin forwarded message: > > From: "Tschofenig, Hannes (NSN - FI/Espoo)" > > <hannes.tschofenig@nsn.com> > > Date: June 22, 2010 22:45:28 GMT+03:00 > > To: "Eggert Lars (Nokia-NRC/Espoo)" <lars.eggert@nokia.com> > > Subject: Probing the viability of TCP extensions > > > > FYI: http://www.imperialviolet.org/binary/ecntest.pdf > > > >
- [tcpm] Probing the viability of TCP extensions Adam Langley
- Re: [tcpm] Probing the viability of TCP extensions Sally Floyd
- [tcpm] Fwd: Probing the viability of TCP extensio… Lars Eggert
- Re: [tcpm] Fwd: Probing the viability of TCP exte… Scheffenegger, Richard
- Re: [tcpm] Fwd: Probing the viability of TCP exte… Adam Langley
- Re: [tcpm] Fwd: Probing the viability of TCP exte… Patrick McManus
- Re: [tcpm] [multipathtcp] Fwd: Probing the viabil… Fred Baker
- Re: [tcpm] [multipathtcp] Fwd: Probing the viabil… Patrick McManus
- Re: [tcpm] [multipathtcp] Fwd: Probing the viabil… Hagen Paul Pfeifer