Why p2p kills 2.4Ghz network ?

ksswd · Mon Feb 05, 2007 11:55 am

I have a theoretical question. Everybody knows that unlimited p2p is a killer for 2.4 Ghz netrworks. What's the main factor? Amount of data to handle, too many connections, too big pps rate or anything else?

Piotr

Equis · Mon Feb 05, 2007 12:34 pm

Its like a ddos on your network

I think because wireless is half duplex is teh problem

People upload and download at the same time

janisk · Mon Feb 05, 2007 2:52 pm

yes, Equis is correct as p2p is upload and download but wifi card in only half duplex (unless it is dual nstream)

jo2jo · Mon Feb 05, 2007 6:23 pm

how much killing are we talking? number? i'm about to be providing to some residental appartments and this would be useful info.

btw; i though even nstream 1 combats the half duplex issue..i have little expericne with it however.

thanks.

pedja · Mon Feb 05, 2007 9:12 pm

Problem is too many connections at the same time. It kills even LAN.

jo2jo · Mon Feb 05, 2007 9:14 pm

im aware of this, i just was curious as to how big the impact on wireless.. specifically when serving laptop clients.

i have one hotel install and on that a que set at 256k upstream and that is generally full always..and i can still get individual 2.4g users with > -83 rssi downloading/ bursting to 3mbit (max of the line) and pings across to a wds repeater still average ~10ms ..this is the only results i know of / have. tks

pedja · Mon Feb 05, 2007 9:47 pm

Wireless is especialy weak on that because of it's nature: time sharing. It simply does not handle large number of small packets well. That's why p2p, some network gaming and VoIP, are always a problem.

bjohns · Tue Feb 06, 2007 3:21 am

I would say its the small packets that cause the most problems. Nstream assists because of its packet packing and polling mechanisms.

I supply a few student accommodation sites via a wireless backhaul and NStream deals with the torrent traffic nicely.

jo2jo · Tue Feb 06, 2007 4:22 am

any pp/s or Mbit numbers? or actual number of IP address running p2p vs impact on latency?

just trying to plan ahead for a link im setting up..

thanks