We have an ISR 2801 with a HWIC-CABLE-D-2. Within 6 months we expect a DOCSIS 3 rollout to our area.
Is there any hope for a HWIC-CABLE-D-3 or another DOCSIS 3 compatible HWIC?
It would be even better if it was compatible with the ISR 2801.
I can't find any information on this except for a note stating that the HWIC-CABLE-D-2 will not be "upgraded" to be DOCSIS 3 compatible due
to the hardware not supporting channel-bonding. I assume this means a new HWIC would be needed, and not just an IOS upgrade (which is fine);
but does that imply a DOCSIS 3 HWIC will exist?
I know there are backbone devices that are DOCSIS 3 compatible, unfortunately they are not an option due to cost.
If we had to use an external DOCSIS 3 modem, and then use a short ethernet link to the 2801, what would be the downside?
I have a blind assumption that it would be a large performance hit to the router.
I know the DOCSIS protocol allows the ISP to have (in my opinion) strange restrictions and control over the modem.
Would we be able to route 3 IPs through the external modem like we are now?
Any information or even educated guesses on this front is very appreciated.