Odd drop out of service 50Mb with Superhub

[alexcopeland]

Experiencing odd drop outs of service this afternoon and tech support couldn't see an issue. Without power cycling the Superhub the connection appears to restore by it's self. I have logged onto the Superhub and have these stats could anyone confirm if these are fine as support suggested if the issue continues an engineer will need to come and pay a visit.....

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 323000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
Downstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power SNR Docsis/EuroDocsis locked
Locked QAM256 186 55616000 Kbits/sec 323000000 Hz 2.3 dBmV 42.5 dB Hybrid
Locked QAM256 183 55616000 Kbits/sec 299000000 Hz 3.6 dBmV 42.7 dB Hybrid
Locked QAM256 184 55616000 Kbits/sec 307000000 Hz 3.2 dBmV 43.0 dB Hybrid
Locked QAM256 185 55616000 Kbits/sec 315000000 Hz 3.1 dBmV 42.6 dB Hybrid
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Upstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power
Locked ATDMA 3 20480 Kbits/sec 45800000 Hz 54.7 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Primary Downstream Service Flow
Downstream(0)
SFID 31713
Max Traffic Rate 53000000 bps
Max Traffic Burst 10000 bytes
Mix Traffic Rate 0 bps
Primary Upstream Service Flow
Upstream(0)
SFID 31861
Max Traffic Rate 5140000 bps
Max Traffic Burst 8160 bytes
Mix Traffic Rate 0 bps
Max Concatenated Burst 8160 bytes
Scheduling Type Best Effort

[Peter_]

Originally Posted by alexcopeland

Upstream Channels 54.7 dBmV

Very likely the Upstream is causing issues as 50Mb tends not to like its Upstream higher than 55 dBmV and is probably going above that when you experience your issues.

I would have booked you an engineer with that Upstream.

[alexcopeland]

Would it make any difference if I power cycled the superhub and then checked those levels again?

---------- Post added at 14:12 ---------- Previous post was at 13:41 ----------

After power cycle this is now the upstream power level, 54.9 dBmV. I guess it'll drop out soon and I'll give them another call.

[Peter_]

Originally Posted by alexcopeland

Would it make any difference if I power cycled the superhub and then checked those levels again?

---------- Post added at 14:12 ---------- Previous post was at 13:41 ----------

After power cycle this is now the upstream power level, 54.9 dBmV. I guess it'll drop out soon and I'll give them another call.

Not really as you have seen.

[pip08456]

I thought the power inreased incrementally at steps of 0.25 dBmv?

That would mean 54.9 is an impossible figure.

[Peter_]

Originally Posted by pip08456

I thought the power inreased incrementally at steps of 0.25 dBmv?

That would mean 54.9 is an impossible figure.

No we see them all.

[pip08456]

Thanks Masque.

[Peter_]

Originally Posted by pip08456

Thanks Masque.

They go up 1 to 9, so you can see 4.1, 3.9, 4.2 and so on.

[pip08456]

Originally Posted by Masque

They go up 1 to 9, so you can see 4.1, 3.9, 4.2 and so on.

Yet another change to get used to.

[Peter_]

Originally Posted by pip08456

Yet another change to get used to.

You can see it the post at the top.

2.3 dBmV 42.5 dB Hybrid
3.6 dBmV 42.7 dB Hybrid
3.2 dBmV 43.0 dB Hybrid
3.1 dBmV 42.6 dB Hybrid

[qasdfdsaq]

Downstream receive levels don't have any bearing on the granularity of upstream transmit power control though.

[pip08456]

Originally Posted by qasdfdsaq

Downstream receive levels don't have any bearing on the granularity of upstream transmit power control though.

Now that's a good word!