So as it is described in numerous guides/threads, if we want to have a kind of CDN to be built using Wowza, we configure servers as origin and edges, and use packetizers for original input, and repeaters on edges.
We had a test setup, where two Wowza servers were both just "live" and both had packetizers, and no repeaters. In this setup Wowzas were able to pick up streams from each other over RTMP and successfully rebroadcast it to users.
So question is - what is the difference/negative outcome of using just "live" and packetizers on all servers, while still repeating streams? Does it have any impact on broadcast, or maybe CPU/RAM usage? As if it works in this simplified setup (and it does, just we don't know consequences) - we would rather avoid complications and stick to easy "one same app per server" setup?