Is there a radio Wide Area Network transport for Yggdrasil?

[iacore]

Can Yggdrasil mesh over PJON or Lora? What need to be done to make it so?

[sdgathman]

yggdrasil uses TCP - it doesn't care what's underneath (e.g. I commonly go over Batman ethernet radio mesh). HOWEVER, Lora is low bandwidth, which might make standard TCP unreliable. There are variations on TCP designed for low bandwidth and/or high latency. E.g. a solar system mesh has to deal with latencies of many hours. (And we'll never know whether the delay is in going out or coming back - anisotropy :-) )

[konsumer]

I have similar quesitions.

It seems similar to reticulum. Like it's decentralized, and the pubkey is the address, and all traffic is encrypted. Reticulum works great over LoRA, because it's very small messages (think chat, and maybe some multi-packet larger messages.) In routing, there is also ideas like "forwarders" that take packets from 1 network and resend on another network (so you can bridge local lora to internet.)

I think it'd be cool to use yggdrasil over LoRA. it could even directly use rNode (the reticulum device-firmware) since that acts as a sort of LoRA modem. Additionally, I'd be very interested in making a client directly on a standalone lowend device (like Cardputer and/or CYD.)

• Is anyone else working on this?
• Is it harcoded to use TCP?
• How much traffic is typical, like does it have a lot of overhead compared to LoRA stuff? I really want something similar to a low-bandwidth, long-distance, bridgeable to other nets, SMS net, like meshtastic/meshcore/reticulum-on-lora

[neilalexander]

LoRa would be basically useless for Yggdrasil, it's just too slow and too heavily restricted by duty cycle in many countries. Wi-Fi HaLow works well though from my own testing.

[sdgathman]

There is a project called NNCP, which works like UUCP but is designed for low bandwidth mesh applications. UUCP would also work, but NNCP has additional features like encryption and authentication (which require additional layers like gpg for UUCP).

UUCP was our mesh network back in the 80s. UUCP tools tracked the peers of every node, and compiled an optimized routing table for each address. UUCP/NNCP send files - not packets. And keep plugging away at a file for as long as it takes.

http://www.nncpgo.org/

[konsumer]

I also used UUCP, in the old days, and it sounds like that might add a lot of redundant (not the good kind) overhead and would not be better than reticulum (which is also encrypted, and heavily tested over lora, and performs great) so I'll probly just keep focusing on that. I appreciate the info!

[NNdroid]

I think it's possible, but the latency is high and the speed is not high. I know MeshTactic supports IP tunnels, but it requires a 30-second latency.