????? ???????? ????? ????? ???? PMTU ?????? ?? Windows NT 3.51

?????? ????????? ?????? ?????????
???? ???????: 136970 - ??? ???????? ???? ????? ????? ??? ???????.
??? ????? ??? ???????. ????? "??? ??" ??? ??? ??????? ??? ????.
????? ???? | ?? ????

?? ??? ??????

???????

?? ???? ??? ????? ????? ?? ???????? ?? Windows NT 3.5 ?? ????????? 3.51 ???????? ??? ???????? TCP/IP ??? ??????? ???????.

?????

??? ??????? ???????? ????? ??? ?????? ????? ???? ????? ? ??? ?? ?????? ???? ???? ??? ???? ???.

????

?????? ??? ??????? ????? ????? ???????? ?????.

???? ???? ??? ?????? ???? ??????? ?????? ??????

Windows NT 3.5 3.51 ??????? ?????? ???? ??????? ?????? ?????? ??? ?? ???? ?? RFC1191. ??? ????? ????? ????? ????? ???????? ????? ??? (MSS) ???? ?????? ???? TCP. ??? ??????? "???? ?? ???????? MSS ???????. ???? ?? ???? MSS ???? MTU (???? ????? ??????) ??? ???? ???????? ???? 40 ???? ???? IP ? TCP.

????? ??? ??? TCP ??????? ??? ???? ????? ??????? ??? ' ? ??? ????? ?? "??? ??????? ?? ??? IP. ?? ???? ?? ????? ??? ?????? ?? ???? ????? MTU ????? ???? ????? ????????. ?? ???? ?????? ???? ????? ?? ???? ????? ???? ???? ?????? IP ??? ????? ?????? ???? ??????? ?????? ???? ???????? ????? ????. ??? ?????? ?????? ????, ???? ???? ?????? ??? ????? ?? "??? ???????" ?? ??? IP. ?? ??? ???????? ??? ?? ???? ??????? ?????? ?????? ?????? ?? ???? ????? ?????? ????? ICMP ???? ?? ???? ??????? ???? ???????? ?????? ???? ???????.

???? ????? ????? ????? ??????? ???? MTU ??????? ??? ???? ??????? ?? ???? ??? ?????? ??? ?? 16 ?? ?? ??????? ??????? ???? ??? ICMP ???? ???? "" ?? ??????? ICMP. ???? RFC1191 ?????? 4? ?????? ??? ???????. ??? ?????? ????? ????? ??? ICMP, TCP ??? ?? MSS ?????? MTU ?????? ???? ??? ??? TCP ? IP, ???? ??? ????? ??? ??? ?????? ??? ??????? ????? ?? ???? ?? ???? ?????? ???? ???????? ????? ?????? ???? ???????.

???????? MTU ?????? ?????? ?? ??? ?? ???? ?????? ???????

?????? ???? ??????? ?????? ?????? ??????? ???? ??????? ???? ???? ?????? ?? ???? ????? ?????? ??????? ??? ???????:
hkey_local_machine

\SYSTEM\CurrentControlSet\Services\tcpip\parameters
\EnablePMTUDiscovery (REG_DWORD 0 = ????? 1 = ?????)

?? ???? ????? ?????? ???? ??????? ?????? ?????? ??????? ???? ???? ??? ????? ?????? IP ?????? ??? ????????. (MSS TCP = 536).

??? ????? ???? ???? ??????? ?????? ?????? ?? Windows NT 3.5 ?? 3.51

??? ??? ?? ????? ????? ??????? ???????? ?????? ?? ??????? ??? ???????. ????? ?? ????? ????? ICMP ?????? ????? ?????? ??? ?????? ??????, ????? ?? ???? ????? ?????? ?????? IP ???? ????? ???? ???? ??? ??????? ??????? ??????? ?? ????. ??? ??????? ??? ??? ??????? "????? ????? Black ?????".

???? ????? TCP/IP Windows NT 3.5 ?? 3.51 ??????? ?????? "????? ???????" ??? ????? ???? ? ?????? ???? ??????? ?????? ?????? ????? ??????? ?????. ???? ????? ???? ????? ??? ????? ????? ?? "????? ???? PMTU ??????":
HKEY_LOCAL_MACHINE \SYSTEM\CurrentControlSet\Services\tcpip\parameters \EnablePMTUBHDetect (REG_DWORD 0 = ????? 1 = ?????)

??? ???? ??? ?????? ??? ?????? ????? "????? ???? ???? ??????? ?????? ??????" (???????) ? ?? ??? ?????.

??? PMTUBHDetect ????? ? ??? ????? ????? ???? TCP 1/2 TCPMaxDataRetransmissions (??? ????? ??????? ????????? = 5) ????? ??? ??? ?????? ?? "??? ??????? ???? ??? ??? ???? ??????? ????? ???????. ??? ?? ?????? ????? ?????? ?????, ???? ????? ?? MSS ?? ????? ????? ?? "??? ??????? ?? ?????? ?????? IP ?????????? ???? ?? ??????? ??? ??? ???????.

?????

?? ?????? ?????? ??? ?????? Microsoft ??? ????? ??????? ????? ???? ???????? ???? ????? ???????? ?????, ??? ??? ?? ??? ????? ?? "??? ???????. ??? ?? ????? ?? ???????? Windows NT 3.5 ?? 3.51 ???????? ??? ??? ????? ???? ???? ??????? ?????? ?????? TCP/IP ? ?????? ??? ??????? ? ??? ??????? ????? ???? ????? ???? ?? ???? ?????? ????? ?????? ???? ??????? ?????? ??????. ????? Microsoft ???? ??????? ??????:
??? PMTUBHDetect ????? ? ??? ????? ????? ???? TCP 1/2 TCPMaxDataRetransmissions (????????? = 5 ?? ????) ???? ???? ??? ?????? ? MSS ???? 65,536 (MTU = 576) ???? ??????? ??? ???? ??????? ????? ???????. ?? ??? ????? ?? "??? ??????? ??? ?? ?? ??? ??????? ???? 65,536. ????? ?????? 65,536 MTU ???? ????? ???? ???? ???? ?? ??? ????? ?? "??? ??????? ?????? ???? ?????? ????? ??? ??? ?????.

??? ?? ???? ??? ??????? ????? ????? ?? ?????? ??? ????? ????? ??? ????? ????? ????? ???????? ???? ????? ??????? ??? ????????. ????? ??? TCPIP.SYS ?? ?? ??? ?????? Microsoft.



??????: PMTUBHDetect ?? ???? ?????????? 0 (?????) ??? ????????? ?? ??? ?????? ?????? ??? ?? ??? ????? ??? ??? ?????? ????? ?????? ??? 1.

?????? ??? ????? ????? ?? ?????? ????? TCP/IP ?????????? ???????? ???? ????? ????? ????? 120642.



?? ????? ??? ??????? ?? ???? ????????? Service Pack ?? Windows NT ??????? 3.51 ? Windows NT 4.0. ?????? ??? ??????? ??? ????? ?????? ??? "???? ???????" ????????? ??? ?????? ??????? ?? ????? ?????Microsoft ??? ????????):
???? V C A P E R ????????

???????

???? ???????: 136970 - ????? ??? ??????: 28/???? ??????/1435 - ??????: 3.1
????? ???
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
????? ??????: 
kbnosurvey kbarchive kbmt kbnetwork KB136970 KbMtar
????? ????
???: ??? ????? ??? ?????? ???????? ?????? ????? ???? ????? ?????????? ????? ?? ????????? ?????? ????. ???? ???? ?????????? ???? ?? ???????? ???????? ?????? ????????? ????? ????????? ???????? ????? ???????? ?????? ?? ?????? ??? ?? ???????? ???????? ?? ????? ??????? ?????? ??? ??????? ?????? ??. ?????? ?? ???? ??? ??????? ???????? ????? ?? ???? ????? ?????? ??? ????? ??? ????? ??????? ?? ????? ?? ?????? ??? ??? ??????? ??????? ?? ????? ????? ????? ????? ?????. ?? ????? ???? ?????????? ??????? ??? ????? ?? ??????? ?? ????? ?????? ?? ??? ????? ?? ????? ??????? ?? ???????? ?? ??? ???????. ???? ???? ?????????? ???????? ??? ????? ?????? ??????? ??????
???? ??? ????? ??????? ?????? ??????????136970

????? ???????

 

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