Date: Fri, 25 Jun 2004 15:09:52 +0200 From: Daniel Lang <dl@leo.org> To: liamfoy@sepulcrum.org Cc: current@freebsd.org Subject: Re: Re: HEADS UP: SACK committed to HEAD Message-ID: <20040625130952.GG47324@atrbg11.informatik.tu-muenchen.de> In-Reply-To: <27418837$108815533440dbeec6bfc654.96632672@config19.schlund.de> References: <27418837$108815533440dbeec6bfc654.96632672@config19.schlund.de>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] Hi Kevin, liamfoy@sepulcrum.org wrote on Fri, Jun 25, 2004 at 11:24:01AM +0200: [..] > > > I just commited the work done at Yahoo! to implement SACK in our tcp > > > stack. Please report any bugs or problems and we'll work on getting > > > them addressed. [..] > What is SACK anyone? [..] "Selective Acknowledgement", it allows a host/router to explicitly acknowledge TCP segments and retransmit them, such that if a segment gets lost, it can be retransmitted from the last hop instead of the connection endpoint, which would result in a much larger delay. Especially if you have wireless links, SACK can be a huge improvement. Please correct/elaborate, I'm not sure if I got that entirely right, except for the idea. ;-) Best regards, Daniel -- IRCnet: Mr-Spock - Soon I will be free, then hungry. - Daniel Lang * dl@leo.org * +49 89 289 18532 * http://www.leo.org/~dl/ [-- Attachment #2 --] 0s *H d0`1 0 + 0 *H 0 0#0 *H 0r1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10URBG-Benutzer-CA10 *H ca@in.tum.de0 040423131558Z 050531000000Z0w1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10U Daniel Lang1$0" *H daniel.lang@in.tum.de0"0 *H 0 W}%Iomp:+bA4W@UI|ܬ.!fD4C=F ց`٤{5d h: '&4M^O 7s z,>@݁</)>D"HoEIm{0o 5287iť1{mX2E ͧBQ 5e[3;-+|L-tY=?T ͒~ 00 U 0 0 U rUqBngȱ\X^f0U #06$9fG= ;ò fEmk0i1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10 URBG-CA10 *H ca@in.tum.de0U 0 U %0++0U 0langd@in.tum.dedaniel.lang@in.tum.de langd@informatik.tu-muenchen.de%daniel.lang@informatik.tu-muenchen.delangd@cs.tum.edudaniel.lang@cs.tum.edu dl@leo.org0 U 0 0;U 40200.,*http://ca.in.tum.de/crls/g2/userca_crl.crl0 `HB0 `HB Dieses Zertifikat wurde ausgestellt fuer Daniel Lang von der RBG-Benutzer-CA (2.Generation), Fakultaet fuer Informatik der Technischen Universitaet Muenchen.06 `HB)'http://ca.in.tum.de/cgi-bin/userca-rev?02 `HB%#http://ca.in.tum.de/cgi-bin/ca-rev?0, `HB http://ca.in.tum.de/policies/0GU @0>0< +>eH0+0)+ http://ca.in.tum.de/policies/0 *H h[5BC1JkG[ūp+mZ#Ry6JkF]Oj_L\! CL\<3rڅ< [q+Nvm S %tȠ>&mDx) Pt(:'6D-蕡JznefLG< zc%$sqW$Cg Cjb l L|(auZg;#aK900ʠ0 *H 0i1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10 URBG-CA10 *H ca@in.tum.de0 040414113634Z 090601000000Z0p1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10U RBG-Server-CA10 *H ca@in.tum.de0"0 *H 0 ~;rpo1ĴPNۇQ2Tx qeÿ4k3l ffuVir嫡h(LuLw,)X餈 ;O_qE>(7XfLr!wx|܇MF̈́vUEQޯ$-n = yT AϴB>kc^]\SuX;{{4LN*L8Vupv L35*)& 00U 00 U 68:҃- 0U #0/Wm& 22:mk0i1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10 URBG-CA10 *H ca@in.tum.de0U 0U % 0 +07U 00.0,*(&http://ca.in.tum.de/crls/g2/ca_crl.crl0 `HB0 `HB Zertifikat fuer RBG-Server-CA ausgestellt von RBG-CA 2.Generation, Fakultaet fuer Informatik der Technischen Universitaet Muenchen02 `HB%#http://ca.in.tum.de/cgi-bin/ca-rev?0< `HB/-http://ca.in.tum.de/policies/servercapol.html0GU @0>0< +>eH0+0)+ http://ca.in.tum.de/policies/0 *H [ [lkwy!T}ÆUDPI'WH>!XCs.Թ;]5d~;nٷIh D1E_慸<<ƙ '^ 0H-ιI>W϶"Nf+!s:ϴ064q0} 'I ҳ`i:^6SmFgFGo VuD*t5z7ȷ|]j7>Efеa?YbMe-:?g1ee ܋@ Fhc{x000 *H 0i1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10 URBG-CA10 *H ca@in.tum.de0 040414113821Z 090601000000Z0r1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10URBG-Benutzer-CA10 *H ca@in.tum.de0"0 *H 0 B J&Z ~eאYk1)<xݶJ 30[[N:*+D8Aiu/&OS_u1JqcP[M3!B3:Sz0^vYgwqל36Lx6ˣNlQ.|=uMWFh& CJꡑP Jd{ % d.P㌠+ *z8s~jv}.=?Wg٬P_1CgJLC 0U; 00U 00 U 6$9fG= ;ò fE0U #0/Wm& 22:mk0i1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10 URBG-CA10 *H ca@in.tum.de0U 0 U %0++07U 00.0,*(&http://ca.in.tum.de/crls/g2/ca_crl.crl0 U 0 0 `HB0 `HB Zertifikat fuer RBG-Benutzer-CA, ausgestellt von RBG-CA 2.Generation, Fakultaet fuer Informatik der Technischen Universitaet Muenchen02 `HB%#http://ca.in.tum.de/cgi-bin/ca-rev?0: `HB-+http://ca.in.tum.de/policies/usercapol.html0GU @0>0< +>eH0+0)+ http://ca.in.tum.de/policies/0 *H tȪhóenN]r)ڂp0R?ozɭ]D8U2 ĵiz8nnh?F> /V%|.)OU:;|=Q9QDQu=%znp||)tLD㿂'`< 'Vw9\@tafD*X3މo,|b:CHZ@ Oœ;jD72ME35 _1i\a@Ek1S0O0x0r1 0 UDE10UMuenchen1 0 U TUM1 0 U IN10URBG-Benutzer-CA10 *H ca@in.tum.de#0 + 0 *H 1 *H 0 *H 1 040625130952Z0# *H 1ug:FN mX>0R *H 1E0C0 *H 0*H 0 *H @0+0 *H (0 *H -=< , sOny D* 7lXDa!كD ℜ՟:a LK>@NT <Z'){:G(I9D7P& P<ȧYcIbynwuCEq.YۑhP]pFdۿA+z~ ~GI;I/p0jq$H<>))1) .356s@w2z~Uʌ
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040625130952.GG47324>