reply to Zeonis
Re: Unreliable speed
said by Zeonis:A port change could be a change to a different port on the same linecard or it could be a change to a port on a different linecard but within the same DSLAM or it could be a change to a different DSLAM. While there are compact mini-DSLAM I expect that the ones used by Sonic are of the more typical modular design that have field replaceable linecards. The number of DSLAM in a given CO is likely to vary based on the number of customers in that area. Some CO may only have a single Sonic DSLAM.
When they change ports does it just change to a different port on the DSLAM or does it change to a totally different DSLAM?
A technician performing a port change is going to be limited in his choices by the ports that are unused. However where port availability allows to do so the change would be at least to a different linecard. This will solve the problem regardless whether the cause is limited to a single port or the entire card (and to fix such a hardware problem the entire card has to be replaced in either case). One exception is bonded Fusion since both lines need to be terminated at the same linecard. To troubleshoot one pair in bonded Fusion it either has to be moved to another port on the same linecard or both pairs have to be moved to new ports on another linecard.
However you are probably more interested in possible network congestion issues instead of a defect port/linecard. There are too many unknowns for me to guess whether or not moving a DSL port to a different DSLAM would be helpful, but my guess is that in most cases it wouldn't (if there is a performance problem it is more likely on the WAN side and would effect all the DSLAM at that CO).
Do you know whether any of your neighbors have Sonic Fusion ? If they have the same issue it would make it more likely to be a problem with Sonic at your CO.
Since you mention windows, have you used the tools link here at dslreports.com to check (and if necessary tune) your network settings for optimal performance ?
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