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The guy also misses the point that packets can be dropped because of integrity check failures: if the packet has been altered in some way (cosmic ray, WiFi inte
by plopilop 10y ago
The guy also misses the point that packets can be dropped because of integrity check failures: if the packet has been altered in some way (cosmic ray, WiFi interfering with microwaves or whatever), then the checksum fails and the packet is dropped.
Actually, the causes of packet dropping are (AFAIK) exactly the same as in TCP. But in TCP, dropped packets are sent again.
One exception though: in UDP, delayed packets won't be waited for long before being dropped.
- deleted 10y ago[deleted]
- dfrey 10y agoThe ways in which packets are accidentally lost is the same between TCP and UDP, but if you have 150Mbps total coming in from four different ports and you need to route that data over a single 100Mbps port, then the router needs to choose which packets to drop. I bet that TCP packets take priority over UDP in many routers.
- chinathrow 10y ago> "I bet that TCP packets take priority over UDP in many routers." Unless you prioritize them differently.
- krallja 10y agoJulia Evans is not a guy.
- witty_username 10y agoIf a something interferes with WiFi, I'm pretty sure WiFi will automatically retransmit.
- plopilop 10y agoI just checked, and it does indeed retransmit. I stand corrected.