FCCs RFC for the Definition of Broadband

Jay Hennigan jay at west.net
Fri Aug 28 14:46:22 CDT 2009

William Herrin wrote:

> You would suggest treating the Ethernet and POTS ports the same for
> power backup purposes until the ethernet port drops its carrier for 60
> seconds or so? Maybe do the same for the POTs ports wrt detecting
> whether any phones are attached? Nah, that would make far too much
> sense; there must be something fatally wrong with the idea.

Detecting whether an idle phone is attached to a POTS port isn't exactly 
trivial.  This is more true now with modern phones that don't have 
mechanical ringers.

Keeping the ethernet port up on battery if there is link makes sense. 
For that matter a "Wake-on-LAN" style polling to power it for a second 
every 30 to detect carrier would be even better.

Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV

More information about the NANOG mailing list