那些遇到过的问题

使用定向无线电中继，吞吐量下降到接近于零

Ste*_*han 10 networking local-area-network server-message-block wireless-bridge

我们正在使用以下 1Gbit/s 无线电链路设置： 位置 A：

  • 具有 1Gbits/s 符号的互联网网关。纤维
  • 我们的大部分服务器包括 dhcp、dns、文件服务器 (smb)、voip-server、exchange-server
  • 55 个客户/用户
  • 定向无线电继电器 A (Lightpointe AireLink 60 SX) - 1Gbits/s

地点 B：

  • 一台文件服务器（smb）
  • 30个客户/用户
  • 定向无线电中继 B (Lightpointe AireLink 60 SX) - 1Gbits/s

位置 A 和 B 之间的距离为 177 米。两个位置共享一个子网：192.168.0.0/24 用于客户端和服务器，VoIP 电话位于子网 10.6.3.0/24（也与两个位置共享）。因此，两个位置之间没有路由，无线电链路充当桥接器。

定向无线电继电器 A 的设置：

Link Status: UP
Mode: Data
RSSI, dBm: -46
RSSI Alarm Thrshld, dBm: -60
RSSI Alarm Clear, dBm: -50
RF Link: high    
TX RF Band, GHz: 62.5
RX RF Band, GHz: 59.5
TX Power, dBm: -7
Distance: Very short
ACM: Enabled
Modulation: 16QAM 5/8
TX Lock: normal lock
RX Lock: normal lock
Modem Lock: locked
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定向无线电继电器 B 的设置：

Link Status: UP
Mode: Data
RSSI, dBm: -49
RSSI Alarm Thrshld, dBm: -60
RSSI Alarm Clear, dBm: -50
RF Link: low
TX RF Band, GHz: 59.5
RX RF Band, GHz: 62.5
TX Power, dBm: -4
Distance: Very short
ACM: Enabled
Modulation: 16QAM 5/8
TX Lock: normal lock
RX Lock: normal lock
Modem Lock: locked
Run Code Online (Sandbox Code Playgroud)

RF Link RX 错误定向无线电继电器 A：0 RF Link RX 错误定向无线电继电器 B：0

我们在 B 点遇到以下问题：

  • VoIP 音频中断（通常一次只有一个方向，每次大约 3 秒）
  • smb 吞吐量有时会下降到 5 Mbit/s 甚至更低
  • 外发邮件（交换服务器）有时很慢
  • 互联网连接缓慢

文件传输率降至零，文件传输中止，0x8007003B（位置 A->B）： 示例 1：文件传输速率降至零且文件传输中止 示例 2：文件传输速率降至零且文件传输中止

总结一下：似乎有什么原因导致吞吐量大幅下降，但我们不知道这里发生了什么。我们安装了两个“人在中间人”服务器有两个桥接每个以太网端口，收集一些数据ntopng，并tshark在无线链路数据端口，并将其连接到本地网络的交换机端口之间的两个位置。

从位置 A 的客户端访问位置 A 的服务器和从位置 B 的客户端访问位置 B 的服务器没有问题。

  • server.location-a = 192.168.0.149
  • server.location-b = 192.168.0.242

iperf 显示出良好的数据速率：

user@location-a:~$ iperf -c server.location-b -i 2 -t 20
------------------------------------------------------------
Client connecting to server.location-b, TCP port 5001
TCP window size:  512 KByte (default)
------------------------------------------------------------
[  3] local 192.168.0.149 port 63378 connected with 192.168.0.242 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 2.0 sec   198 MBytes   832 Mbits/sec
[  3]  2.0- 4.0 sec   195 MBytes   817 Mbits/sec
[  3]  4.0- 6.0 sec   198 MBytes   831 Mbits/sec
[  3]  6.0- 8.0 sec   199 MBytes   836 Mbits/sec
[  3]  8.0-10.0 sec   165 MBytes   692 Mbits/sec
[  3] 10.0-12.0 sec   198 MBytes   829 Mbits/sec
[  3] 12.0-14.0 sec   195 MBytes   817 Mbits/sec
[  3] 14.0-16.0 sec   193 MBytes   810 Mbits/sec
[  3] 16.0-18.0 sec   200 MBytes   838 Mbits/sec
[  3] 18.0-20.0 sec   199 MBytes   833 Mbits/sec
[  3]  0.0-20.0 sec  1.89 GBytes   814 Mbits/sec
Run Code Online (Sandbox Code Playgroud)

双向使用 --tradeoff (-r)

user@location-a:~$ iperf -c server.location-b -i 2 -t 20 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 1.00 MByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to server.location-b, TCP port 5001
TCP window size:  512 KByte (default)
------------------------------------------------------------
[  4] local 192.168.0.149 port 49535 connected with 192.168.0.242 port 5001
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0- 2.0 sec   191 MBytes   801 Mbits/sec
[  4]  2.0- 4.0 sec   196 MBytes   824 Mbits/sec
[  4]  4.0- 6.0 sec   196 MBytes   822 Mbits/sec
[  4]  6.0- 8.0 sec   193 MBytes   809 Mbits/sec
[  4]  8.0-10.0 sec   196 MBytes   821 Mbits/sec
[  4] 10.0-12.0 sec   187 MBytes   783 Mbits/sec
[  4] 12.0-14.0 sec   164 MBytes   690 Mbits/sec
[  4] 14.0-16.0 sec   166 MBytes   697 Mbits/sec
[  4] 16.0-18.0 sec   191 MBytes   803 Mbits/sec
[  4] 18.0-20.0 sec   196 MBytes   820 Mbits/sec
[  4]  0.0-20.0 sec  1.83 GBytes   787 Mbits/sec
[  4] local 192.168.0.149 port 5001 connected with 192.168.0.242 port 45775
[  4]  0.0- 2.0 sec   221 MBytes   928 Mbits/sec
[  4]  2.0- 4.0 sec   221 MBytes   929 Mbits/sec
[  4]  4.0- 6.0 sec   222 MBytes   933 Mbits/sec
[  4]  6.0- 8.0 sec   222 MBytes   933 Mbits/sec
[  4]  8.0-10.0 sec   222 MBytes   932 Mbits/sec
[  4] 10.0-12.0 sec   188 MBytes   789 Mbits/sec
[  4] 12.0-14.0 sec   223 MBytes   935 Mbits/sec
[  4] 14.0-16.0 sec   222 MBytes   932 Mbits/sec
[  4] 16.0-18.0 sec   223 MBytes   934 Mbits/sec
[  4] 18.0-20.0 sec   222 MBytes   933 Mbits/sec
[  4]  0.0-20.0 sec  2.14 GBytes   918 Mbits/sec
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反转 iperf 服务器和客户端：

user@location-b:~# iperf -c server.location-a -i 2 -t 20
------------------------------------------------------------
Client connecting to server.location-a, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.0.242 port 45778 connected with 192.168.0.149 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 2.0 sec   220 MBytes   921 Mbits/sec
[  3]  2.0- 4.0 sec   218 MBytes   916 Mbits/sec
[  3]  4.0- 6.0 sec   217 MBytes   910 Mbits/sec
[  3]  6.0- 8.0 sec   221 MBytes   926 Mbits/sec
[  3]  8.0-10.0 sec   213 MBytes   892 Mbits/sec
[  3] 10.0-12.0 sec   188 MBytes   787 Mbits/sec
[  3] 12.0-14.0 sec   218 MBytes   916 Mbits/sec
[  3] 14.0-16.0 sec   218 MBytes   916 Mbits/sec
[  3] 16.0-18.0 sec   219 MBytes   919 Mbits/sec
[  3] 18.0-20.0 sec   223 MBytes   937 Mbits/sec
[  3]  0.0-20.0 sec  2.10 GBytes   904 Mbits/sec
Run Code Online (Sandbox Code Playgroud)

使用 -d 进行双重测试：

user@location-b:~# iperf -c server.location-a -i 2 -t 10 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to server.location-a, TCP port 5001
TCP window size:  255 KByte (default)
------------------------------------------------------------
[  5] local 192.168.0.242 port 45784 connected with 192.168.0.149 port 5001
[  4] local 192.168.0.242 port 5001 connected with 192.168.0.149 port 52423
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0- 2.0 sec   210 MBytes   882 Mbits/sec
[  4]  0.0- 2.0 sec  45.7 MBytes   192 Mbits/sec
[  5]  2.0- 4.0 sec   172 MBytes   722 Mbits/sec
[  4]  2.0- 4.0 sec  50.8 MBytes   213 Mbits/sec
[  5]  4.0- 6.0 sec   205 MBytes   859 Mbits/sec
[  4]  4.0- 6.0 sec  65.5 MBytes   275 Mbits/sec
[  5]  6.0- 8.0 sec   215 MBytes   901 Mbits/sec
[  4]  6.0- 8.0 sec  73.0 MBytes   306 Mbits/sec
[  5]  8.0-10.0 sec   223 MBytes   934 Mbits/sec
[  5]  0.0-10.0 sec  1.00 GBytes   860 Mbits/sec
[  4]  8.0-10.0 sec  55.0 MBytes   231 Mbits/sec
[  4]  0.0-10.0 sec   290 MBytes   243 Mbits/sec
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iperf 双向同时启动 smb 文件传输位置 A -> B（从位置 B -> A 启动 smb 文件传输没有问题：

user@location-b:~# iperf -c server.location-a -i 1 -t 30 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to server.location-a, TCP port 5001
TCP window size:  238 KByte (default)
------------------------------------------------------------
[  5] local 192.168.0.242 port 45787 connected with 192.168.0.149 port 5001
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0- 1.0 sec   111 MBytes   934 Mbits/sec
[  5]  1.0- 2.0 sec   109 MBytes   913 Mbits/sec
[  5]  2.0- 3.0 sec   111 MBytes   928 Mbits/sec
[  5]  3.0- 4.0 sec   111 MBytes   932 Mbits/sec
[  5]  4.0- 5.0 sec   111 MBytes   928 Mbits/sec
[  5]  5.0- 6.0 sec   101 MBytes   844 Mbits/sec
[  5]  6.0- 7.0 sec  73.8 MBytes   619 Mbits/sec
[  5]  7.0- 8.0 sec   111 MBytes   929 Mbits/sec
[  5]  8.0- 9.0 sec   109 MBytes   916 Mbits/sec
[  5]  9.0-10.0 sec   112 MBytes   938 Mbits/sec
[  5] 10.0-11.0 sec   109 MBytes   918 Mbits/sec
[  5] 11.0-12.0 sec   111 MBytes   933 Mbits/sec
[  5] 12.0-13.0 sec   106 MBytes   891 Mbits/sec
[  5] 13.0-14.0 sec  85.8 MBytes   719 Mbits/sec
[  5] 14.0-15.0 sec   112 MBytes   935 Mbits/sec
[  5] 15.0-16.0 sec   111 MBytes   934 Mbits/sec
[  5] 16.0-17.0 sec   110 MBytes   924 Mbits/sec
[  5] 17.0-18.0 sec   112 MBytes   937 Mbits/sec
[  5] 18.0-19.0 sec   112 MBytes   940 Mbits/sec
[  5] 19.0-20.0 sec   112 MBytes   935 Mbits/sec
[  5] 20.0-21.0 sec   111 MBytes   928 Mbits/sec
[  5] 21.0-22.0 sec   110 MBytes   923 Mbits/sec
[  5] 22.0-23.0 sec  79.1 MBytes   664 Mbits/sec
[  5] 23.0-24.0 sec   112 MBytes   937 Mbits/sec
[  5] 24.0-25.0 sec   112 MBytes   936 Mbits/sec
[  5] 25.0-26.0 sec   111 MBytes   934 Mbits/sec
[  5] 26.0-27.0 sec   112 MBytes   937 Mbits/sec
[  5] 27.0-28.0 sec   111 MBytes   928 Mbits/sec
[  5] 28.0-29.0 sec   112 MBytes   938 Mbits/sec
[  5] 29.0-30.0 sec   112 MBytes   941 Mbits/sec
[  5]  0.0-30.0 sec  3.15 GBytes   901 Mbits/sec
[  4] local 192.168.0.242 port 5001 connected with 192.168.0.149 port 52898
[  4]  0.0- 1.0 sec   104 MBytes   872 Mbits/sec
[  4]  1.0- 2.0 sec   103 MBytes   867 Mbits/sec
[  4]  2.0- 3.0 sec  97.9 MBytes   822 Mbits/sec
[  4]  3.0- 4.0 sec  95.9 MBytes   804 Mbits/sec
[  4]  4.0- 5.0 sec   101 MBytes   851 Mbits/sec
[  4]  5.0- 6.0 sec   102 MBytes   860 Mbits/sec
[  4]  6.0- 7.0 sec   103 MBytes   867 Mbits/sec
[  4]  7.0- 8.0 sec   103 MBytes   868 Mbits/sec
[  4]  8.0- 9.0 sec  50.0 MBytes   419 Mbits/sec
[  4]  9.0-10.0 sec  14.8 MBytes   124 Mbits/sec
[  4] 10.0-11.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 11.0-12.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 12.0-13.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 13.0-14.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 14.0-15.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 15.0-16.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 16.0-17.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 17.0-18.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 18.0-19.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 19.0-20.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 20.0-21.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 21.0-22.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 22.0-23.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 23.0-24.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 24.0-25.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 25.0-26.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 26.0-27.0 sec  0.00 Bytes  0.00 bits/sec
[  4] 27.0-28.0 sec  0.00 Bytes  0.00 bits/sec
[  4]  0.0-28.9 sec   876 MBytes   255 Mbits/sec
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小智 1

多路径反射 ? 尝试将这对偏移一点点，我不知道使用哪种调制，但我想在 FHSS 风格中，如果没有硬件警告，您可能会遇到很多麻烦

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6 年，8 月 前
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