View Full Version : 100mbps lan connection?
lepiaf
07-22-2009, 05:20 AM
Hi,
one interesting thought - how can we actually achieve speed of over 100mbps (as advertised) with 100mbps lan connection on Bullet M? Is the marketing talking about 100mbps full duplex or 100mbps max in one direction at a time (so if you have 100 in one and 10 in the other it would be 110?) Why not putting gigabit eth on this?
thanx,
LePiaf
stonefish
07-22-2009, 06:21 AM
http://ubnt.com/forum/viewtopic.php?t=13214&sid=e4bac6e0527b53d5838ae6936ac95acd
Shockware1
07-22-2009, 06:47 AM
When have you ever seen a radio advertised as xx/mbit full duplex?
Unless radios use 2 frequencies, one for up and one for down, they are half duplex radios. Generally, radios that use 2 freq at the same time are rather pricey.
Ethernet on the other hand is usually full duplex or stated othewise, which stands to reason since there are 2 pairs of wires that xmit and receive. 2 paths for data.
UBNT-Mike.Ford
07-22-2009, 08:44 AM
Hello,
Please take the time to understand the differences between half duplex and full duplex systems.
Thanks,
Mike
lepiaf
07-23-2009, 06:55 AM
heh, so it's slightly better perf than it's already possible with some other pushes of existing tech. And yes to all, I know that wifi tech is never advertised with fdx speeds, and yes, I know the difference of fdx/non fdx modes :) For the millisecond I was intrigued/blinded with combination of ubnt fame, "major breakthrough", "100mbps+ of real" words so I beleived that there's really something else :). So yes, I still claim it's the PR trick :) Question is mostly answered in topic that stonefish sent (will the 100mbps lan limit performance) and to cut a long story short we might try to use 2+2 bullets and a bit of smart routing in behind to achieve that 100 (without +) mbps of real tcp/ip traffic (on radio level only, of course :)).
thanx ;)
LePiaf
p.s. don't worry, bought ubnt before, will buy it in future (when it's avail :)) and still think that you're making excellent products
UBNT-Mike.Ford
07-23-2009, 10:02 AM
Hey Lepiaf,
If you look at the newsletter you will see a screenshot of throughput. That is actual TCP/IP throughput over a link thorugh 10/100 Eth
Thanks,
MIke
jimmy870
07-24-2009, 01:59 AM
Hi folks,
All this gets complicated as to what is meant when such and such is said.
It would make it clear to us if a comparison was made to the 802.11a model. For example I have a transfer rate of 4.2MB/s (megabytes/sec) or near 34 mbps using bullet5s and nanostation5s (with which I am extremely pleased). This is filetransfer in one direction. Half that if transfering in both directions. What could I expect under the same conditions using the new bullet5M. I don't expect an answer I can take to the bank, just a general ball park figure.
thanks.
Again, Well Done!
UBNT-Mike.Ford
07-24-2009, 09:55 AM
Hello,
With the units I use at home, I get sustained transfer rates of 10.2MB/s when streaming HD Video single direction.
Thanks,
Mike
jimmy870...
I'll get some revised numbers by this weekend after I do a firmware upgrade.
jimmy870
07-25-2009, 11:33 AM
Thanks Mike, Thanks WHT,
Well, you know what I'll have to do now.
It would be cool if devices like the NS5 was upgraded in a similar manner.
Thanks again.
rconaway
07-28-2009, 01:19 AM
We have tested HDTV streams up to 26Mbps with no problem. We currently have 3 streams running, 1-13Mbps and 2-4Mbps on the same AP.