Big Temporary Networks

Masataka Ohta mohta at necom830.hpcl.titech.ac.jp
Wed Sep 19 08:25:33 UTC 2012


Seth Mos wrote:

> Yes, radvd has a configuration option to send unicast packets. But I 
> think the effects are slightly overstated.

A senario considered by IEEE11ai is that a very crowded train
arrives at a station and all the smart phones of passengers
try to connect to APs.

Then, it is essential to reduce the number of control packet
exchanges.

> Also note that some wifi networks eat DHCPv4 broadcasts too,

As I already stated, DHCP discover/request from STA to AP is
unicast.

> And if the wifi network is so bad that you have icmp and udp dropping

I'm afraid you don't understand CSMA/CA at all.

						Masataka Ohta




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