Dears,
i have problem with upload.
I meassure : Download is OK (67,58Mbps) and UL: only 12,11Mbps). Link test is from SM.
If I change the frequency, the UL is without much change.
Can anyone advise?
Settings AP:
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Device type: 5.4GHz MIMO OFDM - Access Point
Board type: P12
Software version: CANOPY 15.1 (Build BETA-7) AP-None
Channel Frequency : 5480.0 MHz
Channel Bandwidth : 20.0 MHz
Registered SM Count : 11 (11 Data VCs)
Contention Slots : 12
Frame Period : 2,5ms
Max Range : 2 Miles
Downlink Data : 85%
SM Receive Target Level : -54dbm
Sustained Downlink Data Rate : 155000
Sustained Uplink Data Rate : 15500
Settings SM:
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Device type: 5.4/5.7GHz MIMO OFDM - Subscriber Module
Board type: P11 C120
Product Type : PMP 450
Software version: CANOPY 15.1 (Build BETA-7) SM-DES
Session Status : REGISTERED VC 28 Rate 8X/6X MIMO-B
Air Delay : 1525 ns, approximately 0.141 miles (749 feet)
Receive Power : -55.5 dBm
Signal Strength Ratio : -1.0dB V - H
Signal to Noise Ratio : 35 V / 35 H dB
Beacons : 100%
Transmit Power : 22 dBm (target power [23 dBm] exceeded maximum)
AP Selection Method : Optimize for Throughput
Sustained Downlink Data Rate : 60000
Sustained Uplink Data Rate : 70000
Hi Priority Channel : Disabled
If you have "Downlink Data : 85%", that leaves only 15% of the duty cycle for upload. 15% divided by 85% = ~ 0.18, and the actual download capability of 67.58 Mbps multiplied by the 0.18 sliver you are permitting the AP to use for upload = 12.16 Mbps. In other words, it's working exactly as you set it to do.
If you want to increase the upload performance, you'll have to lower your Downlink Data percentage
You may want to reduce the contention slots too.
12 contention slots for 11 SMs is a bit overkill.
4 contention slots should work fine in your case.
2 Likes
Thank you. Everything is fine.
It was a typo. I have set 4 correctly. Thanks