Software Guide

Troubleshooting
Tsunami
®
800 & 8000 Series - Software Management Guide 282
8.8 Wireless Interface Validation
Problem Solution
Wireless Interface
Validation
Run iperf commands (You can run Embedded iperf commands only through Telnet.)
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iperf –s –w 202k (command for iperf server)
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Iperf –c ipaddress –w 202k –t time Period –I <intermediateResultInterval> –P <4 or
6> (command to run iperf client)
– Ipaddress -> of the SU/End Point B or BSU/End Point A device where the iperf
server is running
– P -> No of pairs (Streams)
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Use –d option to run bidirectional throughput
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Use –r option to run unidirectional throughput one after another without changing
the server and SU ends
If the expected throughput is not achieved, then check the following:
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Antenna Alignment
– Note whether the antenna ports are balanced – SNR/RSSI provided for Local
and Remote in the BSU/SU Link Statistics page or by using “aad” command
– Signal difference of <=5 dBm is considered as balanced and recommended
– If the chains are not balanced, then look at the alignment and connectors of
RF cables, used between antenna and device
– If in RMA (Returned from Customer), check the RF cable to radio port
connectivity
– Avoid nearby metal surfaces, if you are using Omni antenna
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Data Streams
– Select “Single” stream instead of “Dual” stream mode
– DDRS - with single stream data rate or with Auto mode
Dual stream data rates can be used only when the signal in both antenna ports is
balanced.
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Antenna Port Selection
– For devices with 3x3 MIMO radio, make sure you are either enabling all
antenna ports for 3x3 MIMO or using A1 and A3 antenna ports for 2x2
MIMO mode
– For devices with 2x2 MIMO radio, use A1 and A2 antenna ports
– For using single stream, it is mandatory to select antenna port A1
– Enabling all antenna port will not cause any issue even if it is not in use.
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Bad Channel
– Check for CRC errors, PHY errors, WORP Retries and WORP Failures in
Monitor Interface Statistics page. If this count increments steadily (Refreshing
the web page is required) then
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Either change the channel and check for a better channel
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Use Wi-Spy or similar tool and check the environment for better channel