Hello everyone,
I noticed in the last few days that I been having my SN margin bouncing around on the downstream. Today however, it has been acting very strange.
Usually, the SN margin on line 1 on downstream will sometimes just be jumping between 10dB-25dB (upstream barely moves, maybe by a decimal), causing FEC and sometimes CRC errors. No big deal on this, it never affected service too much, only when it piled up many FEC and CRC that it just goes down and retrains itself. Sometimes in the past, I had where the SN margin would go negative on the downstream, or the upstream margin would be at 6553. That returned back today, but no big deal on that.
Today, it piled up errors and retrained itself like normal, however, today it took a bit for it to retrain itself and sync, but it also synced into this:
L3 sdb[331]: DSL: line-1: Mode VDSL2 (PTM)
L3 sdb[331]: DSL: line-1: Sync Rate in kbps D/S 0 U/S 0
L3 sdb[331]: DSL: line-1: Latency path Unknown
L3 sdb[331]: DSL: line-1: Trellis D/S:ON U/S:ON
L3 sdb[331]: DSL: line-1: CO Vendor b5004244434da3f3
L3 sdb[331]: DSL: line-1: VDSL profile 8d
L3 sdb[331]: DSL: line-1: Link showtime counter since boot 11
L3 sdb[331]: DSL: line-1: Retrain Reason RDI
Surprisingly it was only at 0 for only maybe 15-30 seconds til it retrained back to the normal 27615 DS and 3040 US.
Sometime later on, both lines retrained themselves, and this time, both lines synced differently (look at picture above)
This picture was from earlier, the max attainable rate was still around 66Mbps and 67Mbps on both lines, but line 1 retrained itself a few times and it ended up peaking at 90Mbps on downstream, 19Mbps on upstream. That lasted about 15-30 minutes until it retrained itself again to 66Mbps-67Mbps max attainable, but the synced rate and SNR are about the same.
The RG has been up for 21 days so I'll probably reset it later on when everyone is asleep. I wonder if this has been happening due to the hot sunny weather that Texas is getting down here, since it struggled a little bit last year during the summer. The only problem with this entire thing is just that its happening somewhat frequent during the day, causing some temporary downtime but nothing too severe.
Anyone got any comments? Feedback? Suggestions? Questions? Thoughts?
↧