Hi all,

I'm seeing 4 X throughput gains when using MT ROS N-Stream - I've been amazed by this for quite some time.

Is N-Stream a completely propriety and a one-of-a-kind system?

Is there any other similar type technology for other systems like openwrt and madwifi?

thanks,

D

What do you mean 4x??? Are you using 108 Mbps Super G(40 Mhz)? and getting throughput 200+ Mbps?

That's pretty optimistic of you .

In reality I do see a 4 X increase in speed just by turning on N-Stream. An example: I have a 14KM link @ 5Ghz and if I have N-Stream off and I use the bandwidth tool via Winbox I get around 3Mbps one direction between a 333 and a 411. If I turn N-Stream on I get around 12Mbps.

This is a real advantage to Mikrotik ROS over other products (like openwrt, Ubiquity litestations, etc) but I'm keen to know if N-Stream technology (or very similar tecnology, etc) is available for other more generic (openwrt/madwifi, etc) systems

D

That's pretty optimistic of you .

In reality I do see a 4 X increase in speed just by turning on N-Stream. An example: I have a 14KM link @ 5Ghz and if I have N-Stream off and I use the bandwidth tool via Winbox I get around 3Mbps one direction between a 333 and a 411. If I turn N-Stream on I get around 12Mbps.

This is a real advantage to Mikrotik ROS over other products (like openwrt, Ubiquity litestations, etc) but I'm keen to know if N-Stream technology (or very similar tecnology, etc) is available for other more generic (openwrt/madwifi, etc) systems

D

Lolz 12 Mbps is too low for 5 Ghz, use dish instead of panel or grid.
another thing is, Mikrotik is not gonna make any commercial for another companies. But as I know Ubiquity devices doesn't have more than one port, they can offer max. 25 mbit. I don't think openwrt/madwifi/ddwrt have a system like that.

I saw something similar. My ack timing was wrong, NStreme bypassed that problem, bandwidth went up.

Hi 0ldman,

I saw a big difference in speed from my pre-mikrotik (openwrt) days. I also though it was a timing problem but I really couldn't get any improvements with madwifi using the athctrl -d command (and also tried manually changing timing settings in the /proc/sys/dev/wifi0 directory but to no avail.

Actually Ubiquity now releases their own [binary] madwifi driver for cards like the XR5 and it has extra features like dynamic ack timing so thats good.

Still.. just turning N-Stream on and off between a pair of antennas is amazing.

D

i think you have the same problem seen as i
its the standard WLAN mode on 3.x. n-streme "repairs" the problem.

see my post:

http://forum.mikrotik.com/viewtopic.php?f=7&t=26260

Question: To use N-stream do you have to have R52/h's on each routerboard or can you use any wireless card with N-stream.... Just curious -Jordan

any atheros chipset wireless card suppored by ROS will work with Nstreme

any atheros chipset wireless card suppored by ROS will work with Nstreme

Awesome good to hear thank you Normis. -Jordan