On Montag, 8. Oktober 2018 18:43:37 CEST John Gorkos wrote: [...]
This sounds wrong. You should not rebroadcast any OGM. You should only rebroadcast from the best candidate. I'm wondering whether this could cause issues. Or are you testing with a single EspressIF and a single Pi only for now?
I must have a misunderstanding of the BATMAN IV OGM mechanism. My understanding is that ALL 1-hop (direct) neighbors will rebroadcast the heard OGM, and beyond that, only best-hop candidates.
Yes, single hop neighbors have special rules. But it is also important to check for the incoming+outgoing interface .
So, to be clear, I'm working on BATMAN IV and not BATMAN V. Based on the open-mesh docs, BATMAN V networks don't rebroadcast OGMs but instead use the Echo Location Packets. Am I reading that wrong?
Yes, you are wrong. ELP are used in a link-local context (detecting neighbors and announcing itself to neighbors). OMG2 are used to inform the complete mesh.
If there's a compelling reason to move to BATMAN V, I'd be happy to take a look at it.
B.A.T.M.A.N. V is using a different metric. IV is using one which is basically packet loss based for direct neighbors and V is using the expected throughput for direct neighbors. Unfortunately, the ELP documentation  in the wiki is outdated .
Kind regards, Sven