Hey! I am a new contributor, but a long time reader of the forum.
CenturyLink just placed fiber into our subdivision and has it connected to a VDSL2 DSLAM. Much improved over our ADSL DSLAM fed off of 8-T1 lines.
Fast forward.. My wire length per CL's database qualified me for 12/0.896 single line, or 20/2 pair bonded (through the business site only).
I appear to sync just fine 10662/1020 per pair. I have about 32dB of attenuation and a SNR of 19dB using a C2000T modem. The modem reports ~ 7800' between my CPE and the DSLAM.
The curious thing here, is my line, upon install, at first, synced > 20mbps, single pair. Once the tech called in to convert my order to pair bonded, it throttled down to the numbers listed above.
Digging into this further, I used telnet to access my modem, and via the XDSLCTL0/XDSLCTL1 commands, I found my modem could theoretically sync at the following rates:
> xdslctl0 info
xdslctl0: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 1175 Kbps, Downstream rate = 23546 Kbps
Bearer: 0, Upstream rate = 1022 Kbps, Downstream rate = 10062 Kbps
> xdslctl1 info
xdslctl1: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 1182 Kbps, Downstream rate = 24204 Kbps
Bearer: 0, Upstream rate = 1020 Kbps, Downstream rate = 10062 Kbps
So, here's the question, how could I go about converting to a 40/2 connection (20000/1000 per pair)? On the CL price guide I'd seen in another post, a 40/2 looks like an available option.
Should I go through tech support to see if they would overprovision me? Sounds like the automatic overprovisioning may not happen on pair bonded setups via the small business pricing tier.
I'd be happy to pay more for a 40/2 connection.
But the thing that's curious, is when I review the attenuation in the various line calculators, it claims my attenuation has about 14000mbps max. Perhaps my SNR being in the high teens is helping the cause of the attenuation being a bit high?
Thoughts? Is this worth the trouble of pinging CL?
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