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MikroTik CSS106 / RB260GSP config for AREDN

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KM4DC
KM4DC's picture
MikroTik CSS106 / RB260GSP config for AREDN

The attached documents my setup for a MikroTik CSS106/RB260GSP switch. This is a 5 port (with optional SFP) managed switch with POE-in on port 1 and POE-out available on ports 2-5. I wrote this up because the switch is quite different from other switches I've used.  The result presented here is still a work in progress, but it seems to work OK. Comments welcomed. I paid about $60 for the switch.
The solution allows Internet (Port1) access for the AREDN node (port2) and Ports 3-5. It does not allow Internet access from the WAN side of the AREDN node. Ports 3-5 can access the AREDN node and mesh network and the Internet.  The switch is powered from its 24 volt power supply. POE is provided to the AREDN node via port 2.

73, Don, KM4DC
 

K9CQB
K9CQB's picture
I like the possible future use of fiber runs on this
Don,
What I really love about this RB260GSP switch is that it has an SFP for fiber. I hope we can eventually get the SPF port enumerated and operating inside the AREDN firmware. It would allow us to run fiber between devices that might be too long to run for Ethernet like:
1. Running up to 3-4km of fiber over the top of a mountain or ridge to link 2 valleys between two AREDN nodes
2. Running a fiber link 300-500 feet through a building up to a rooftop AREDN node
3. Running fiber into a government facility (County EOC) that doesn’t allow an AREDN RF link on their roof where they need to link into the AREDN network
 
Also, fiber runs and links can be far less power hungry than RF or Ethernet, which is good for emergency power situations.

-Damon K9CQB
K6CCC
K6CCC's picture
I like the RB CSS106 switches

I have two of the CSS106 switches in service in my home LAN (along with two Mikrotic CSS326 swithes and two RB750 routers).  One is the older RB260 and the other is the newer CSS106.  Neither is being used for AREDN, and also neither is the POE version. Unlike your setup, I am using the SFP port on both, however it is for Ethernet - not fiber.  Both have been in service for several years without issue.  Both are used in less than ideal environmental situations.  One is inside a brick column in my front yard, and the other is in the attic where my measured high temp last summer was 151 degrees F.

Looking at your configuration settings looks reasonable to me.  Good point about AREDN node not being able to power up and supply a DHCP address fast enough.  Your solution is perfect under that situation.  I have all of my switches set for static IP.

I'm not sure I understand Damon's comment about getting the SFP enumerated inside the AREDN firmware.  Unless I'm missing something, there is no need to have the AREDN node to even be aware of what the transport media is.  It's simply an Ethernet connection from the AREDN node to the switch.  Beyond that, does not matter.  If you are linking two AREDN radios (your example #1), it's just a DtD link.  If you are extending the AREDN LAN to remote computer devices (your examples #2 &  #2), it's just a LAN connection.  The media type does not matter.  In the most simple situation, the switch is being used as nothing but a media converter.  If there are more devices plugged into the switch, then of course the switch functions are being used.

 

K9CQB
K9CQB's picture
Good catch - these have no radio in them.

Yep - my bad. I had a momentary lapse. For some reason I thought this switch had a 2.4GHz radio in it similar to the RB951. In fact it looks identical to the RB951Ui-HnD (same case). But , because it has no radio, you can just use the stock MikroTik OS and run fiber all day long.

-Damon K9CQB

K6CCC
K6CCC's picture
Yep, same case

Makes sense.  Yes, a bunch of the smaller Mikrotik devices use the same case.  I now have the two RB250 / CSS106 switches, two RB750 routers, and now two hAP AREDN radios that all look the same.  If they were not in separate locations, I would have a hard time telling them apart without a careful look.  I do like them however...
 

AJ6GZ
HEX PoE

Also look at the HEX PoE which is also 5 ports of Gigabit + SFP. However it runs RouterOS instead of SwitchOS, so you get all of the features which is quite amazing how much they've crammed into RouterOS. I use that model on almost all my sites.

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