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Device-to-Device Ethernet Linking

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ka9mot
ka9mot's picture
Device-to-Device Ethernet Linking
Hello,
I want to deploy two Ubiquiti M2 and M5 on a tower.
I am looking for a way to mesh these two devices or nodes together via the LAN port(s), and be able to mesh all of them as if it was over RF.
I read this article talking about Inter-mesh Tunneling
source:
https://www.arednmesh.org/content/operational-notes-aredn-302
But the above link does not give a step by step solution on how to do this..

I found the following article from hsmm-mesh that gives a workaround and I would like to know if this would work with meshing two aredn nodes via the LAN ports.
source: http://broadbandhamnet.com/hsmm-mesh-forums/view-postlist/forum-3-firmware/topic-733-how-do-you-connect-two-or-more-co-located-nodes-via-ethernet-cable.html

Here is the tutorial described by wx5u

Per K5KTF:

"If you tie two (or more) rnodes together via the LAN port(s), and you want to be able to mesh all of them as if it was over RF, you need to edit:
/etc/config/olsrd.conf
/etc/config.mesh /olsrd.conf

And down where the Interface section is, by default it just has wl0 and its section.

What I do is right above the wl0, and after #### Interface ### I add:

Interface "eth0.0"
{
}

(those are curly braces)

save both files and reboot.

That tells OLSR to also mesh over the LAN ports.
In 0.4.3 and before, OLSR had a problem handling more than one interface, and would crash horribly and frequently."

Per WX5U:

"I haven't tried it myself, so try this out and see what happens.  Please back here with success/failure."


Would the above work or can anybody suggest me a better way to achieve this ?

Thanks,,

K.

 

W6GSW
W6GSW's picture
DTD linking is now simple

The information in the BBHN link is outdated.  Things have changed a lot since 2014.  smiley

Device-to-device (DTD) linking is build into all AREDN nodes.  There is a good overview at https://www.arednmesh.org/content/device-device-linking-dtdlink .

Linking two nodes is just an Ethernet cable.  For more nodes you probably want to use a VLAN-capable switch.

At our primary hub site we have eight mesh nodes DTD linked using an appropriately-configured Netgear GS108E switch.


Gary
W6GSW

KA6ECT Trustee
Los Angeles Emergency Communications Team
Pasadena-San Gabriel Valley Emcomm Mesh
 

K6AH
K6AH's picture
It's much easier than that...

No, it's much simpler than that.  You simply connect the 2 nodes' Ethernet PoE LAN ports together and they figure it all out on there own.  It's called DtD (device to device) linking.  Now it gets a little more complicated if you need other devices connected on the LAN ports... that'll require an Ethernet smart switch which supports VLANs (Virtual LANs).  But even then, you'll find straight-forward switch configuration instructions under the Software tab on the menu, above.

Andre, K6AH
 

ka9mot
ka9mot's picture
Thank you Gary, thank you
Thank you Gary, thank you Andre...
Your help is exactly what I needed..

regards,
Steeve K.

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