Originally Posted by jercra
You have it right. It's just a frequency and program number. The issue would be that any frequency/prog num combination can be used for any channel at any time. You could never predict what would be on a particular "channel" so I don't see what value there is being able to do that. This is no different than an un-encrypted VOD stream BTW.
Ok, thats the big difference then. With IP multicast used for IPTV the streams are always sent to the same address. Channel 3 for example could always be 188.8.131.52, but whether or not its streaming to your node is a matter of whether or not it is actively being requested.
So with SDV each time a channel begins to flood from a node it is assigned the next available frequency and that freqency ID is delievered to the STB informing it where to tune? What happens if another STB off of the node jons? No new flooding occurs, the frequency ID to join is just delievered to the STB?
In the IP world it makes sense to always stream to the same address but in the cable world it sounds like it makes more sense to dynamically allocate frequency bands so you get the most out of the available frequency.