[Windows 8以後] Windows 8 Windows 10 系統提升網路速度、netsh interface tcp show global、nets

IT_man

在 Windows 8 Windows 10 微軟通過網絡發送 TCP 資料來提高系統的性能，包括提高了 Win10 系統的網速，該功能最初在
$ x7 L* ?$ O) o2 E& g- C" }$ H$ @Windows Vista 出現，一直到現在，但是這並不是完全有用的，該功能雖然可以優化網絡，但並非完全有益，關閉後可能
8 O& N3 H+ T1 ]9 g. }) t4 q會更好，網路連接速度更快。
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操作步驟：
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Step1、找到「Command Prompt (Run as Administrator)」，在「Command Prompt」輸入
netsh interface tcp show global 來查看「Receive Window Auto-Tuning Level」狀態。
* v$ O& `& e# M8 k1 c6 L/ IMicrosoft Windows [Version 10.0.17134.165]
9 Y! ^1 w8 R8 F% t4 o$ l) x6 c(c) 2018 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>netsh interface tcp show global
Querying active state...
" _, B# S( L# {4 z* {# P& yTCP Global Parameters
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8 I* p' a0 q2 U: CReceive-Side Scaling State : enabled
0 x7 a2 r% o* t. GReceive Window Auto-Tuning Level : normal
add-On Congestion Control Provider : default
ECN Capability : disabled
! Q4 u+ B# g3 K* `) x1 zRFC 1323 Timestamps : disabled
1 C; P# K9 K  v$ |- ~% DInitial RTO : 3000
! X9 A9 m9 D$ `Receive Segment Coalescing State : enabled
Non Sack Rtt Resiliency : disabled
, k( z& C' [& dMax SYN Retransmissions : 2
; w( S: [; G% O+ ]* H/ K. cFast Open : enabled
( q5 @2 W8 Z# ~% `Fast Open Fallback : enabled
2 e* w5 t$ c: d. D3 o+ b; Y' P0 qPacing Profile : off
- F! }6 @3 N" w. qC:\WINDOWS\system32>

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" l( `9 ?3 ?& a5 @) y. `; P! s, }Step2、接著輸入 netsh int tcp set global autotuninglevel=disabled。
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& k% W+ W6 M( I: j" o8 D1 IC:\WINDOWS\system32>netsh int tcp set global autotuninglevel=disabled
, T% Y1 ?2 _$ \6 H* c, LOk.

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Step3、再次輸入 netsh interface tcp show global 來查看「Receive Window Auto-Tuning Level」狀態。
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; u- E! i8 C, _" I4 {' [2 ~& ?Microsoft Windows [Version 10.0.17134.165]
9 @0 r. k, w# O. y9 }. g  G& E(c) 2018 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>netsh interface tcp show global
; M$ `4 f( w2 uQuerying active state...
0 C) x) {. v2 q+ HTCP Global Parameters
----------------------------------------------
Receive-Side Scaling State : enabled
+ Y8 _! g4 p& `+ J6 ^" WReceive Window Auto-Tuning Level : disabled
Add-On Congestion Control Provider : default
ECN Capability : disabled
RFC 1323 Timestamps : disabled
Initial RTO : 3000
2 D; L4 N7 a# D7 XReceive Segment Coalescing State : enabled
  R" R1 B8 l" L. n5 Z2 fNon Sack Rtt Resiliency : disabled
Max SYN Retransmissions : 2
" d; q, h6 {( K2 M5 ~4 _& FFast Open : enabled
. d& H6 ?$ ]  w; ?  O5 s/ UFast Open Fallback : enabled
& A6 z) B+ K7 l1 u/ c) IPacing Profile : off
C:\WINDOWS\system32>
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