I also got some before and after OGMv1 overhead test results with this patchset and the VID 0 remapping patch, averaged over one week. Not as significant as the pending DAT patchset, but still a -15.94% OGM overhead saving on our ~200 nodes network.
The theoretical upper limit would have been 23.5% with a raw OGM message size of 68 bytes reduced to 52 bytes. The measured 15.94% also includes +14 bytes ethernet frame size and batman-adv aggregation though. The more OGMs are aggregated, the closer you'd get to a 23.5% saving. $ capinfos ogmv1-1week-before.cap: ... Data bit rate: 43 kbps Average packet size: 212.77 bytes Average packet rate: 25 packets/s ... $ capinfos ogmv1-1week-after.cap: ... Data bit rate: 36 kbps Average packet size: 178.84 bytes Average packet rate: 25 packets/s ... Regards, Linus
