SD - Here's a cut and paste from the modem notes:
Modem: The current Modem status and settings are shown in this section.
ADSL Firmware Version - This is the version number of the low-level ADSL firmware. This is contained within the Router Firmware.
Modem Status - the current state of the ADSL connection to your phone company.
DownStream Connection Speed - the connection speed of the ADSL connection from the phone company to your Router.
UpStream Connection Speed - the connection speed of the ADSL connection from your Router to the phone company.
VPI - the VPI setting entered on the ADSL Settings page.
VCI - the VCI setting entered on the ADSL Settings page.
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