Hi everybody,
Im an engineer working in a R&D Project using batman-adv protocol. Were
trying to develop a mesh network using linux devices with the objective of
transmitting video in streaming. Video is being generated with gstreamer
using UDP.
The application works relatively fine with 2 devices, but efficiency heavily
decreases when introducing a new node in the mesh network (information need
two jumps to arrive to destination). Introducing more jumps in the network
is exponentially worst. We have been expecting a better behavior of this
protocol, since level 2 routing should be transparent (just increasing
delay when increasing the number of nodes).
We are using batman version 2015.0, over wifi interfaces, and our streaming
applications is working only point-to-point (not multicast or broadcast).
The nodes in between server and client are working just as wireless
repeaters using batman-adv.
We also discovered that worst case happens when changes in batman routing
tables are happening (sometimes, client is able to reach server in just one
jump, but with low quality, and chooses that option instead of jumping
through the repeater node, with better quality). When that happens, we're
droping lots of packets.
Any of you haver tried batman-adv for video streaming? Which was the maximum
number of jumps between batman nodes that you can manage maintaining a good
video quality?
Can you recommend any specific configuration for improving batman behavior?
