5 ms·
Wifi shares the medium (air) with all other radios. It has a random time it waits after it stops if it sees a collision. "Carrier-sense multiple access with co
by downrightmike 3y ago
Wifi shares the medium (air) with all other radios. It has a random time it waits after it stops if it sees a collision.
"Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission only after the channel is sensed to be "idle".[1][2] When they do transmit, nodes transmit their packet data in its entirety.
It is particularly important for wireless networks, where the alternative with collision detection CSMA/CD, is not possible due to wireless transmitters desensing (turning off) their receivers during packet transmission.
CSMA/CA is unreliable due to the hidden node problem.[3][4]
CSMA/CA is a protocol that operates in the data link layer."
https://en.wikipedia.org/wiki/Carrier-sense_multiple_access_with_collision_avoidance https://en.wikipedia.org/wiki/Carrier-sense_multiple_access_...
- dmos62 3y agoI'm not sure I get your meaning. Are you implying that dd over netcat is unreliable because CSMA/CA is unreliable?
- downrightmike 3y agoSorry, just that it isn't anywhere near as efficient. There's a lot of random wait that will slow everything down.
- dmos62 3y agoOh ok, thanks for the insight!