Estamos utilizando la siguiente configuración de enlace de radio de 1 Gbit / s: Ubicación A:
- portal de internet con 1 Gbits / s sym. fibra
- La mayoría de nuestros servidores incluyen dhcp, dns, servidores de archivos (smb), voip-server, exchange-server
- 55 clientes / usuarios
- relé de radio direccional A (Lightpointe AireLink 60 SX) - 1 Gbits / s
Lugar B:
- un servidor de archivos (smb)
- 30 clientes / usuarios
- relé de radio direccional B (Lightpointe AireLink 60 SX) - 1 Gbits / s
La distancia entre las ubicaciones A y B es de 177 metros. Ambas ubicaciones comparten una subred: 192.168.0.0/24 para clientes y servidores, los teléfonos VoIP se encuentran en la subred 10.6.3.0/24 (también se comparten con ambas ubicaciones). Por lo tanto, no hay enrutamiento entre ambas ubicaciones y el enlace de radio funciona como un puente.
Ajustes del radioenlace direccional A:
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
Ajustes del radioenlace direccional B:
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
RF Link RX Error de relé de radio direccional A: 0 RF Link RX Error de relé de radio direccional B: 0
Estamos experimentando los siguientes problemas en la ubicación B:
- Interrupciones de audio VoIP (principalmente solo una dirección por vez durante aproximadamente 3 segundos cada una)
- el rendimiento de smb a veces cae a 5 Mbit / so incluso más bajo
- el correo saliente (servidor de intercambio) es a veces muy lento
- conexión lenta a Internet
La velocidad de transferencia de archivos cae a cero y la transferencia de archivos se cancela con 0x8007003B (ubicación A-> B):
para resumir: parece que hay algo que está causando una caída masiva del rendimiento, pero no sabemos qué está sucediendo aquí. Instalamos dos servidores "man-in-the-middle" con dos puertos Ethernet puenteados cada uno para recopilar algunos datos con ntopng
y tshark
en ambas ubicaciones entre el puerto de datos del enlace de radio y el puerto del conmutador que lo conecta a la red local.
No hay problemas para acceder a los servidores de la ubicación A desde el cliente de la ubicación A y acceder a los servidores de la ubicación B desde los clientes de la ubicación B.
- server.location-a = 192.168.0.149
- server.location-b = 192.168.0.242
iperf muestra buenas tasas de datos:
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
ambas direcciones con --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
Revertir el servidor iperf y el cliente:
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
prueba dual con -d:
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
iperf ambas direcciones al iniciar una ubicación de transferencia de archivos smb A -> B (no hay ningún problema al iniciar una transferencia de archivos smb desde la ubicación B -> A:
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