what is the baseline of the 802.11 wireless network retransmission rate?

asked 2019-01-03 06:53:52 +0000

SteveZhou
201 ●31 ●37 ●42 Shanghai,China

I recently see more than 10% of retransmission from sniffer trace via wireshark. It sounds really a big problem to me since on Ethernet, I vagely recall that the baseline of retransmission rate is about 0.5%? I am not sure what is the baseline for a 802.11 WLAN.

Any ideas?

answered 2019-01-03 21:22:44 +0000

Guy Harris
19890 ●3 ●659 ●207

To quote these notes from a (wireless?) network certification guide:

Most data applications in a Wi-Fi network can handle a layer 2 retransmission rate of up to 10 percent without any noticeable degradation in performance

Wi-Fi is not as reliable a network as Ethernet. For one thing, a microwave oven might not mess up your Ethernet, but it might mess up your Wi-Fi, at least if it's in the 2.4 GHz band rather than the 5 GHz band.

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