What % of traffic is network overhead on top of HTTP/S requests

Question

If we:
1) Count bytes/bits at the network adapter level (raw # of bits through the NIC) and,
2) Count bytes in all HTTP/S request/responses.

Assuming only HT

Answer 1

What extra network overhead? the TLS overhead on top of the HTTP amounts to the key exchange. It's mostly processing overhead that you notice.

http://en.wikipedia.org/wiki/HTTP_Secure#Difference_from_HTTP

Down the line (after the server) wan accelerator or proxies will treat your traffic differen't as it isn't cacheable or compressible.