QoS the Packets of iPad (a poem)

QoS the packets of iPadand all through the air 
not a station was Probing, not even a hair
When suddenly on to my Wireshark screen
Appeared Video, Voice and Background, it seemed
"But alas", I exclaimed, as I looked at the MACs
This is only one tablet, not a bushel or stack
To the standard I looked, to decipher the meaning
And to you, dear reader, I offer this gleaning

The standard in question is dot11e

and the goal of its authors was to keep the air free
from clutter like YouTube and Facebook or Twitter
that might cause your voice conference to lag and/or jitter
But remember, dear sniffers, we're still talking WiFi
A world where each access point, smartphone and MiFi
makes its own way to the channel or not
deciding on rates, QoS and the lot

So take heed if your WiFI must work for those apps
that users just love but treat admins like saps
a smartphone may say, "this packet is Voice"
but the AP may reply, "Best Effort; no choice"
And thus if your tool is a management GUI
You could end up wondering why WiFi is pooey
But a sniffer will show -- be it angst or delight --
Whether your gear plays nice or girds for a fight

***

(iPhone: 'This is a Video app.")

 (AP: "You'll get Best Effort and like it.")

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