LUID: 006 : MAC: 0a-00-3e-90-8e-44 State: IDLE
Session Timeout: 0, AirDelay 38 (approximately 1.06 miles (5586 feet))
Session Count: 452, Reg Count 489, Re-Reg Count 362
RSSI (Avg/Last): 1684/1653 Jitter (Avg/Last): 5/5 Power Level (Avg/Last): -66/-67
DnRate(AP): 20000 DnLimit(AP): 500000 UpRate(AP): 20000 UpLimit(AP): 500000 (kbit)
LoUpCIR(D): 0 LoDnCIR(D): 0 (kbps)
Rate : VC 22 Rate 1X/1X
Jitter (Avg/Last): 5/5
Your Jitter is to high.
Umm… ok… this is a 900mhz link. I’m not able to get the jitter down below that.
Here is another:
LUID: 006 : MAC: 0a-00-3e-90-8e-ed State: IDLE
Session Timeout: 0, AirDelay 237 (approximately 6.60 miles (34839 feet))
Session Count: 2, Reg Count 2, Re-Reg Count 0
RSSI (Avg/Last): 1670/1670 Jitter (Avg/Last): 4/4 Power Level (Avg/Last): -67/-67
DnRate(AP): 20000 DnLimit(AP): 500000 UpRate(AP): 20000 UpLimit(AP): 500000 (kbit)
LoUpCIR(D): 0 LoDnCIR(D): 0 (kbps)
Rate : VC 22 Rate 1X/1X
I am using 7.3.6 would upgrading the firmware make any difference?
Looks like a possible interference issue to me.
Looks like Walmart. I just turned the AP into a SM and the spectrum is showing -68 to -71 from 900 all the way to 924
My tower is about 1 mile away from Walmart.
In 1X you need to keep the jitter below 5.
I believe the most common reason for high jitter is interence.
Since you are showing AP stats I am going to assume the jitter is near your AP. You should run a couple link test to try and confirm this. post results.
You could try changing your frequency and see if it helps. re-run link tests.
Also are you using hardware or software scheduling? hardware is recomended in most cases.
What does your noise floor look like?
I have also seen misaligned antennas create these symptoms.
- Would I be better to run 2X?
2. I am using Hardware Scheduling.
3.
906mhz:
Stats for LUID: 2 Test Duration: 10 Pkt Length: 1522
Downlink RATE: 1688371 bps
Uplink RATE: 393216 bps
Downlink Efficiency: 96 Percent
Max Downlink Index: 100
Actual Downlink Index: 96
Expected Frag Count: 32976
Actual Frag Count: 34152
Uplink Efficiency: 79 Percent
Max Uplink Index: 100
Actual Uplink Index: 79
At SM:
REGISTERED
Registered AP
0a-00-3e-90-02-17
RSSI
1385 (-75 dBm)
Jitter
2
Air Delay
39 (approximately 1.09 miles (5733 feet))
Expected Frag Count: 7680
Actual Frag Count: 9622
At AP:
LUID: 002 : MAC: 0a-00-3e-90-8e-44 State: IN SESSION (Encrypt Active)
Site Name :
Software Version : CANOPY 7.3.6 Oct 24 2005 12:06:56
Software Boot Version : CANOPYBOOT 3.0
FPGA Version : 070605 (DES Sched) P9
Session Timeout: 0, AirDelay 39 (approximately 1.09 miles (5733 feet))
Session Count: 3, Reg Count 2, Re-Reg Count 5
RSSI (Avg/Last): 1669/1670 Jitter (Avg/Last): 8/6 Power Level (Avg/Last): -68/-68
DnRate(SM): 20000 DnLimit(SM): 500000 UpRate(SM): 20000 UpLimit(SM): 500000 (kbit)
LoUpCIR(SM): 0 LoDnCIR(SM): 0 (kbps)
Rate : VC 18 Rate 1X/1X
At 919mhz
SM:
Session Status
REGISTERED
Registered AP
0a-00-3e-90-02-17
RSSI
1426 (-71 dBm)
Jitter
8
Air Delay
39 (approximately 1.09 miles (5733 feet))
AP:
LUID: 002 : MAC: 0a-00-3e-90-8e-44 State: IN SESSION (Encrypt Active)
Site Name :
Software Version : CANOPY 7.3.6 Oct 24 2005 12:06:56
Software Boot Version : CANOPYBOOT 3.0
FPGA Version : 070605 (DES Sched) P9
Session Timeout: 0, AirDelay 39 (approximately 1.09 miles (5733 feet))
Session Count: 1, Reg Count 1, Re-Reg Count 0
RSSI (Avg/Last): 1699/1676 Jitter (Avg/Last): 9/8 Power Level (Avg/Last): -67/-67
DnRate(SM): 20000 DnLimit(SM): 500000 UpRate(SM): 20000 UpLimit(SM): 500000 (kbit)
LoUpCIR(SM): 0 LoDnCIR(SM): 0 (kbps)
Rate : VC 18 Rate 1X/1X
Stats for LUID: 2 Test Duration: 10 Pkt Length: 1522
Downlink RATE: 1672396 bps
Uplink RATE: 319488 bps
Downlink Efficiency: 96 Percent
Max Downlink Index: 100
Actual Downlink Index: 96
Expected Frag Count: 32664
Actual Frag Count: 34019
Uplink Efficiency: 63 Percent
Max Uplink Index: 100
Actual Uplink Index: 63
Expected Frag Count: 6240
Actual Frag Count: 9830
Stay with 1X as it’s more robust.
You’ll need to locate the source of interference ASAP. Anything else is just flailing at the problem.
I agree, thats interference.
I have had one link with 99% link test, but interference in the same frec made it drop every 5 min…
Try another frec.
So the interference has gone at least for the moment. I still have two SM’s that are "idle"
When I access them through the AP they come back up - it appears they are dropping because of inactivity.
Any workaround for this?
That seems a little strange. I do not believe we have ever had an SM drop out to inactivity.
Have you tried running the sprectrum analysis at the SM sites that are having trouble?
Anybody know if the power setting is 28dbm or 26 dbm. It allows a 28dbm but does it actually put out that much power?
I have SMs go idle all the time. I get no support calls so I assume it’s normal behavior. If you can still get to the SM through the AP then it’s registered.
If you think the interference is gone, then try rebooting the AP and watch the sessions and re-reg counts. If they keep climbing on those SM’s then there may be something to look for such as a tree in the fresnel zone, cordless phone, etc.
FIXED IT!!!
Now everyone is going to call me crazy but…
Somebody made the comment my jitter is too high for Hardware timing… so… I switched to Software.
Wada. My links are all stable. Even my -80 links with 11-14 jitter have NO re-regs.
I’ll take the lesser throughput and higher latency for stability any day.