Hi Forum,
My APs not go over 5 megas of throughput each
this is my diagram
cluster = cmmicro = bh master trango atlas 45 megas = bh slave trango atlas
45 megas = switch = router
I have a tower with:
3 AP Advantage 5.7
1 AP Advantage 5.4
1 cmm micro sync all devices
1 bh trango atlas 5.8 separate 30 meters vertical of APs
I tested bhs with iperf and results was 33 megas(this is not the issue)
at each AP I have 75 sm aprox
all APs has same configuration to max range,downlink data %,and control
slots.
I have one AP with 8.2.1 firmware and 3 with 7.3.6 (i dont know if this is
the issue)
all APs are sync by power port
downlink data is 75% to all APs
control slots is 3 to all APs
Sustained Uplink Data Rate : (kbps) (Range: 0-- 40000 kbps)
Uplink Burst Allocation : (kbits) (Range: 0-- 500000 kbits)
Sustained Downlink Data Rate : (kbps) (Range: 0-- 40000 kbps)
Downlink Burst Allocation : (kbits) (Range: 0-- 500000 kbits)
Frame Calculate
Calculated Frame Results
Total Frame Bits : 25000
Transmit Details :
Total Frame Overhead Bits : 3940
Data Slots (Down/UpLow/UpHigh) : 52/16/0
AirDelay (Actual/MaxRange) : 0/1620
Approximate distance (Actual/MaxRange) : 0.00 miles (0 feet) / 15.03 miles
(79380 feet)
Uplink Rcv SQ Start : 16733
Uplink Rcv SQ End : 24764
Receive Details :
Total Frame Overhead Bits : 3940
Data Slots (Down/UpLow/UpHigh) : 52/16/0
AirDelay (Actual/MaxRange) : 0/1620
Approximate distance (Actual/MaxRange) : 0.00 miles (0 feet) / 15.03 miles
(79380 feet)
Downlink Rcv SQ End : 16723
Uplink Xmt SQ Start : 18345
I think frame Calculate is very bad beacause uplink Rcv SQ Start was 16733
and user guide said within 300.
At the other APs is the same results,very high.
I think this is the issue but I dont know how down to 300.
I see there is another APs near 100 meters of my cluster but I dont know if
they are sync.
my pings are excelents all time between 10 and 20 miliseconds over all
network
also I have other 2 cluster more at 3 miles and 8 miles from this cluster
and they has same issue.
the issue is all SMs are needing more troughput and bandwidth but my APs not
go over 5 megas.
I have PRTG network monitoring to confirm this.
this happened at peak hours,but I dont know how to fix this issue.
Technical Support said APs Advantage 14 megas throughput with 75 % downlink
you have 10.5 megas download and 3.5 upload but I never seen this.
please,if some one can help me to solved this issue I will apreciate, I will
receive all informations , sugestions or questions.
ask me what you need so I can fix this issue ,and I will post it immediately
thanks.
Carlos
Hi Carlos,
Don’t worry about the Frame Calculator. That is used to make sure that your BH and APs are configured in such a way to minimise interference between them. The manual refers to Rcv SQ Start in the sense that this figure for the BH and for the AP must not be more than 300 DIFFERENCE.
Couple of questions:
- What is the Range that you have set your APs and how far away is the furtherst SM?
- Have you tried increasing your Control Slots to 4 or 5 seeing that you have 75 SMs per AP which is quite high.
- Are you graphing the number of Packets Per Second (pps) going through the APs?
Vanilla,thanks for your help.
all APs are settings to 15 milles but my furtherst SM is at 12 milles.
I not tried increasing APs to 4 or 5 control slots but i going to do it and i let you know what happened.(maybe this can fix issue)
what monitoring program do you recommend me to graphing pps?
thanks
carlos
Are these advantage or non-advantage AP’s? Advantage AP’s have the Advantage logo on the web interface.
What are the frequency assignments of the 5.7 AP’s and Atlas BH?
75 users should be 2-3 control slots.
Have you done a spectrum analysis with all of your radios turned off?
vanilla wrote: Hi Carlos,
Don't worry about the Frame Calculator. That is used to make sure that your BH and APs are configured in such a way to minimise interference between them. The manual refers to Rcv SQ Start in the sense that this figure for the BH and for the AP must not be more than 300 DIFFERENCE.
Couple of questions:
- What is the Range that you have set your APs and how far away is the furtherst SM?
- Have you tried increasing your Control Slots to 4 or 5 seeing that you have 75 SMs per AP which is quite high.
- Are you graphing the number of Packets Per Second (pps) going through the APs?
I thought 3 control slot is enough for 100 SM ?
Generally yes, but if you start getting a lot of contention, increasing the number of control slots can help
Carlos, we use the Solar Winds Network Performance Monitor.
It is not free. I don’t know of any free package that you could use, maybe someone else does.
Cacti can graph pps
Try cactiEZ with the canopy templates.
Jerry,
All APs are Advantage 5750 with Advantage logo on the web interface.
Frecuency APs 5735,5755,5815 and 5580
Frecuency BH 5795 separate 30 meters vertical from APs.
I didnt a spectrum analysis with all radios turned off.
I settings control slots to 4 and 5 but was same,the APs just reach 5 megas,i used iperf to test it and prtg monitoring.
Thanks.
I would highly recommend a spectrum analysis with all radios off. Turn each AP into an SM and do the analysis and take a screenshot of each. This is your baseline for reference.
Are any of the Ethernet links set to 10Mbps half duplex?
Is 2X enabled in the AP’s?
Jerry,
I will start to do a spectrum analisys inmediatly.
Into each AP all link speeds are selected and enable.
Do you think that i must select only one,like 100 Base T Full Duplex ?
Each AP has enable 2X.
Thanks.
Make sure you don;t have any links at 10M half. auto usually puts everything at 100 Full, but if there is significant interference on the tower it can cause ethernet links to negotiate to a slower speed