View Single Post
Old 22-12-2012, 09:47   #20
daveybm
cf.member
 
Join Date: Mar 2007
Services: Ultimate Oomph
Posts: 95
daveybm is on a distinguished roaddaveybm is on a distinguished road
Re: Packet Loss After Maintenance

Thanks for taking an interest,here is the latest update from Virgin Support regarding the ticket status,
F002279284 was closed as fixed on Wednesday. That ticket did have a fairly wide scope however (multiple cables), and a more local one has been opened under the new reference F002287892 for a continuing Forward Error Correction issue on your cable.

The estimated fix date for this ticket is the 28th. Please bump the thread for updates.

Here are my latest DS/US Stats

Downstream:-

DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 314750000 Hz 282750000 Hz 290750000 Hz 298750000 Hz 306750000 Hz 322750000 Hz N/A N/A
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked N/A N/A
Channel ID 42 38 39 40 41 43 N/A N/A
Modulation QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 N/A N/A
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 N/A N/A
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 N/A N/A
Power Level (dBmV) 0.4 dBmV 0.0 dBmV -0.1 dBmV -0.3 dBmV -0.8 dBmV 0.2 dBmV N/A N/A
RxMER (dB) 40.3 dB 40.0 dB 40.3 dB 40.3 dB 40.3 dB 40.1 dB N/A N/A

Upstream:-

US-1 US-2 US-3 US-4
Channel Type 2.0 N/A N/A N/A
Channel ID 59 N/A N/A N/A
Frequency (Hz) 27400000 Hz N/A N/A N/A
Ranging Status Success N/A N/A N/A
Modulation QAM16 N/A N/A N/A
Symbol Rate (Sym/sec) 5120000 N/A N/A N/A
Mini-Slot Size 128 N/A N/A N/A
Power Level (dBmV) 39.3 dBmV N/A N/A N/A
T1 Timeouts 0 N/A N/A N/A
T2 Timeouts 0 N/A N/A N/A
T3 Timeouts 90 N/A N/A N/A
T4 Timeouts 0 N/A N/A N/A

The T3 timeouts seem to go so high and the reset to zero is there a max limit on the count for them? the modem was rebooted by me at 12.30.pm Friday and after the restart the T3 errors was zero so there has been 90 T3s in about 10 hours.
What is a Forward Error Correction issue?

PS I've also noticed I'm now on a different US channel number (was 58 is now 59)

Dave
daveybm is offline   Reply With Quote