Today I wanted to write an post that is not regarding a problem or a bug. Instead a success story
I have seen many people having issues with 802.11n and Mikrotik. I can not say much about the PTP setups of (N) since I do not use them my selfs.
I use Mikrotik @work in the form of standard 5Ghz PTP links and firewall, MPLS setups and hotspot for example.
@Home I do some testing and also use it as my home firewall,router and Access Point.
So for this reason I thought I share what I was able to do here.
This post will show my results of my setup and tests with 802.11n running in 5Ghz mode as an home AP.
The setup as you will see in the pictures is quite simple, I have an RB800 clocked @1200Mhz with 2 RB52n cards and 2 9dbi antenna for the 5Ghz band and the standard 3dbi antenna for the 2.4Ghz. One card for 2.4Ghz (bgn) and one for 5Ghz (an). I have 2 Virtual AP's on every card to have my 2 SSID on both 2.4Ghz and 5Ghz.
SSID 1 is on one subnet and SSID 2 is on an other.
Yes I have firewall rules on action but they are quite complex and will take to long to describe here. Anyhow they do not impact the setup that much.
The tests that I have done is from the following hardware.
Wifi Client
Dell Inspiron 1501
CPU AMD Semperon 3500+
RAM 1024
DWA-160 adapter (5Ghz N)
Windows XP SP3
Server
Dell Latitude D410
CPU P4 M 1,73Ghz
RAM 1024
1Gbit network connection
Ubuntu 11.04
As you can see not the best hardware. But it is proof of concept.
Distance was about 7-10m from the AP traveling trough 1 room to the other. Location of the AP was not optimal.. It was on the floor in an corner of a room.
My tests where done by UDP and TCP.
The UDP test was directed from the routerboard itself. And the TCP test was conducted using iperf to the server on the ether2 (INTERNAL) on my pictures. From the client connected on the 5Ghz band.
As you can see in some pictures the limiting factor was the client computer.
At the time I did this I did not sadly export my configuration so I only have these pictures you are about to see.
Anyhow below is the results.
Since there is a limit of 3 files on one post I will post the rest of the pictures of the wireless settings below.