☰

本地网络上的文件传输速度很慢

tag-icon • tag-icon networking server wireless transfer
本地网络上的文件传输速度很慢

网络拓扑结构

在此处输入图片描述

每当我尝试在本地网络内传输文件时，scp两个方向（服务器--->笔记本电脑或笔记本电脑--->服务器）的速度都无法达到 2Mb/s 以上。FTP 也是如此。

我注意到数据传输以 2.5[Mb/s] 开始，然后几秒钟后迅速降至 500[Kb/s]。

从服务器到笔记本电脑的传输速度稍快一些（3Mb/s 而不是 2Mb/s）。

由于这是纯本地数据传输，因此我预计速度至少为 25Mb/s。

仅供参考，一些有意义的输出：

在服务器上

:~$ ifconfig

eth0  Link encap:Ethernet  HWaddr 00:13:d3:cd:8a:7b  
      inet adr:192.168.1.246  Bcast:192.168.1.255  Masque:255.255.255.0
      adr inet6: fe80::213:d3ff:fecd:8a7b/64 Scope:Lien
      UP BROADCAST RUNNING MULTICAST  MTU:1492  Metric:1
      Packets reçus:34893 erreurs:0 :2 overruns:0 frame:0
      TX packets:45145 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 lg file transmission:1000 
      Octets reçus:19810274 (19.8 MB) Octets transmis:57877746 (57.8 MB)

lo    Link encap:Boucle locale  
      inet adr:127.0.0.1  Masque:255.0.0.0
      adr inet6: ::1/128 Scope:Hôte
      UP LOOPBACK RUNNING  MTU:65536  Metric:1
      Packets reçus:36 erreurs:0 :0 overruns:0 frame:0
      TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 lg file transmission:0 
      Octets reçus:2160 (2.1 KB) Octets transmis:2160 (2.1 KB)

:~$ sudo ethtool eth0

Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes:   10baseT/Half 10baseT/Full 
                        100baseT/Half 100baseT/Full 
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes:  10baseT/Half 10baseT/Full 
                        100baseT/Half 100baseT/Full 
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Link partner advertised link modes:  10baseT/Half 10baseT/Full 
                                     100baseT/Half 100baseT/Full 
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: d
Current message level: 0x00000000 (0)

Link detected: yes

在笔记本电脑上

$ ifconfig

eth0      Link encap:Ethernet  HWaddr 00:21:cc:d3:8d:67  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
          Interruption:20 Mémoire:f2500000-f2520000 

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          Packets reçus:1562 erreurs:0 :0 overruns:0 frame:0
          TX packets:1562 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:478231 (478.2 KB) Octets transmis:478231 (478.2 KB)

wlan0     Link encap:Ethernet  HWaddr 60:67:20:bd:5e:4c  
          inet adr:192.168.1.12  Bcast:192.168.1.255  Masque:255.255.255.0
          adr inet6: fe80::6267:20ff:febd:5e4c/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1492  Metric:1
          Packets reçus:161831 erreurs:0 :0 overruns:0 frame:0
          TX packets:101552 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:195684887 (195.6 MB) Octets transmis:29360206 (29.3 MB)

命令iwconfig wlan0

wlan0     IEEE 802.11abgn  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:26:4D:26:A1:2D   
          Bit Rate=54 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=52/70  Signal level=-58 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:3791   Missed beacon:0

您知道造成这种疯狂缓慢的根本原因是什么吗？

答案1

在终端中尝试

sudo iwconfig wlan0 rate 54M

如果你尝试通过无线网络从笔记本电脑传输

  • 您可以将 wlan0 更改为您需要编辑的任何网络，我认为它是无线的:)

请让我知道这可不可以帮你

相关内容