3 ms·
With a shared medium trusting customer premise equipment to do proper, compatible media access control is pretty much inevitable. A device could just as easily
by butlerm 5y ago
With a shared medium trusting customer premise equipment to do proper, compatible media access control is pretty much inevitable. A device could just as easily transmit noise all day long, ruining service for everyone on the same cable segment. The only way to make that impossible would require rewiring everything as a switched network, which would generally mean running a fiber to every home.
- jeroenhd 5y agoWhen it comes to submitting well-formed streams, I agree. With DOCSIS, though, there's frequency/time block negotiation going on that a central node needs to confirm. A modem getting 1000mbps down on a 100mbps subscription should not be possible by simply flashing the modem with different firmware. This problem has been solved for LTE and other wireless standards, there's no reason why DOCSIS should stick to this old design in their new iterations.
- sidewndr46 5y agoIt's cheap to implement. Why would anyone bother trying to secure it? It's just going to cost a bunch of money for very little gain. If someone gets free bandwidth or free TV shows, nothing is really lost in the process. It isn't like having your car stolen.