We completed our own deployment of the SAF Tehnika FREEMILE-24-2 system today after selling several units to customers with good acceptance.  I have been certified on the SAF proeucts for a year or so and this was an opportunity for me to see it perform in the real world.

The quality of the workmanship is excellent.  Pieces are well machined and well finished.  The Arkivator dish antennas are also well made and have an extremely tight pattern and good front to back ratio.  At 24 GHz, the fresnel zone is small and the beam width of the antennas is very tight so proper alignment is a must.

The link was a bit over a mile, not too far and we were able to align it perfectly resulting in a -59 dBm receive strength, 32 QAM modulation and 100 mbps throughput both directions.  Latency was about 1 ms.  We used 2 ft dish antennas because we were concerned about rain fade and wanted sufficient link margin for 99.999% up-time.

The setup script was easy and only 4 steps long and I had a working link, very intuitive.  You don’t have to be SAF certified to understand the interface, again, very intuitive.  You have a choice of three channels and the ability to do a frequency scan.  Also, changes made to the config can be copied to the remote end with a single button click.

 

Scenario: You have one MikroTik  RB250GS switch running 802.1Q vlans and you want to extend all or some of those vlans to a second switch. The following diagram borrowed from a post by Ozelo explains:

The configuration of the first switch (192.168.88.1) is explained in a previous example 802.1Q Router on a Stick Example. The main change to that example is the configuration of port ether5 since we want it to pass all the vlans to the second switch. The two pales you need to make changes are the VLAN tab and the VLANs tab. Confusing, yes but note the “s” on VLAN on one tab.
Configure the first switch as follows:

Switch 1 – VLAN Tab
 

Switch 1 – VLANs Tab
 

Then configure the second switch as follows. Please note we have set the IP address of the second switch to 192.168.88.10 so as not to duplicate the witch 1 IP address. This is done on the System tab. In case you ever wonder why there is no setting for netmask or default gateway, that is because the switch does a little magic in determining the source of the packet and returning it to the host without the need for those two pieces of information.

Switch 2 – VLAN Tab
 

Switch 2 – VLANs Tab
 

All that remains is to create the vlan interfaces on the router and assign IP addresses, DHCP server, etc. to them. Here is a screen shot of the router used for this example, interfaces and IP addresses. The IP here is the one being used to manage the switches:

 

 

That is it, you should now have two switches trunked together passing vlans to the second switch.

New!!  Ubiquiti TOUGHSwitch!

TS-8-PRO and TS-5-POE are now in Stock!
Contact us for more information!

THis week ISP Supplies is conducting advanced training at LaQuinta Inn and Suites, Houston, Texas. Ready to dig deeper into MikroTik's routing capabilities? Ready to learn all the wireless feature set? Maybe you need to build an enterprise class firewall or implement OSPF in your network. If so, this class is for you! Check our schedule for the next MikroTik training class.