3 ms·
But why does it take a couple of seconds? I can send a ping thousands of kilometers away and get the ICMP reply in 100 ms or something. I can ping my router i
by TacticalCoder 4y ago
But why does it take a couple of seconds? I can send a ping thousands of kilometers away and get the ICMP reply in 100 ms or something. I can ping my router in less than a millisecond and my router is further away than my computer.
Why does this whole negociation take seconds and not milliseconds?
Or my car: it's full of electronics. Chips and code everywhere. Even my pedals, which used to be cables decades ago, are now fly-by-wire. It's chips and code everywhere.
Yet feedback is instant.
Now I understand a monitor is not the same as ethernet and is not the same as a car but... Seconds?
- sjsdaiuasgdia 4y agoPing: your device, your router, your ISP's router, etc are already up and running and ready to participate in protocol interactions. Having done a bit of networking in the days where it was still reasonable to use analog modems as backup connectivity, I remember waiting 15-30 seconds for dial out + negotiation to occur before ping replies began flowing again. Car: your car is an integrated system where all the components have been selected with the intent of working together as an integrated system. A display device often supports many modes and has very few guarantees about how sources will behave, thus inter-device negotiation is needed upon connection. As other comments have noted, the control channel is fairly low bandwidth and there is potentially a decent sized chunk of info to exchange, plus timeouts and delays to ensure the display can work with older or less featured sources.