The tool for looking at this is called "mtr", which is available in various forms for linux, osx, and windows.
It was originally part of the rrul spec, but parsing it's output is a little difficult (or was - there is csv support for it now in linux mainline), and the biggest reason left (besides lack of time to implement it - patches gladly accepted!) we don't use it yet is that it imparts enough traffic to measurably jigger the other results at lower bandwidths. Certainly, instead of blending together the outputs of multiple separate tools as we currently do with flent, it would be better to have one specific tool that measured everything we care about all at the same time and (for example) saw, rather than estimated, acks - but that requires a scale of development effort and funding that we have never had. I do have hope that one day webrtc could be leveraged to give us udp measurements from within a browser. The current dslreports ping over tcp method is subject to a multiplicity of problems. I would not mind at all if browsers gained the ability to set the ttl, also. _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
