Hi,
I'm looking for some advice, at least enough to sway me to one of my options
.
I installed a second line to create a load balanced pair as the existing line was falling over in heavy rain (and the existing line was still under contract). The installation of the second line cured weather related problems - well I suspect that it was where the second line was taken from that cured the problem. The only downtimes during the first month was for the target SNR to be dropped to 3Db. Some time in early November the line that was disconnected to give me a second pair must have been reconnected, as now I get noise spikes once every 10 days or so. Not enough to complain about, but it does take out both lines simultaneously - which defeats the purpose of having 2.
The two lines have different profiles (on 3Db target)
original has 57/12 (was 57/17 but 5 vanished one morning) - HG612 (might be better with the VMG8924)
New has 60/8 - VMG8924
EDIT
original has 63/11 - VMG8924
New has 57/9 - HG612
The new line also has double/tripe the CRCs of the original line upstream (the original line got to 3550+ ES per hour upstream on occasions, but is now generally under 20 ES per hour).
Just to make the new line seem even worse it seems to need a margin or 7/8 to manage the noise burst, whereas the original needs 4/5 (that's for the last burst - I had the new line on 9.5 and the original on 3 as an experiment).
The original line is out of contract now and the new line will be out of contract in March
The options I can think of are:
1. Get the cheapest and most cheerful 40/10 I can find for the first line (Higher SNR will likely mean it'll stay up).
2. Bond the two lines (the new one is AAISP) and keep one of the lines with a high margin
3. Add 4G failover to the original line
4. Leave as-is and wait for 5G
5. Beg to be part of the SRA trial
A reliable connection is worth approximately £120+ per month (as that's how much the business expenses reduce by).
The graphs are the result of SNR experiments during the noise (the original line didn't survive the 10:16 spike, but an extra 1Db Margin enabled it to stay up thereafter).
Now that I've written it all down, I'm favouring option 1... but advice welcomed.