Subject: [Ice] ICE minimum packet sizes

From: Justin Uberti <[email-masked]>
Date: Thu, 5 Nov 2015 13:33:48 +0900

Martin mentioned this today, so while we're thinking about this I wanted to
document the potential savings by doing some surgery.

The current minimum possible STUN check size is 116 bytes (including IPv4
and UDP headers), which, when sent at a 10 ms interval, results in a 93
kbps send rate.

I believe it is possible to reduce the minimum size to 60 bytes, while
still maintaining 5389 compatibility, which works out to a 48 kbps send
rate @ 10 ms.

Details in
https://docs.google.com/presentation/d/10AGaMWifWoDaG9i_FKDnsw9LgA_5deb8ZXHLJJpadBE/edit#slide=id.gc34db0b92_0_12
.