[Cake] low bandwidth default params best effort vs voice latency.
adf.lists at gmail.com
Sun Mar 5 07:43:04 EST 2017
Dave Taht wrote:
> One thing the original sqm-scripts did (with fq_codel) was explicitly
> deprioritize ping with a filter.
> I had written in my original "wondershaper must die" rant how stupid
> it was to prioritize ping upwards to "impress your friends" - as that
> was the case in many, many a wshaper implementation I'd seen.
> I only just now noticed that rant does not have the images inline.
> "Oh, man, ping's prioritized:"
> As for explicit depriorization, well, I took a lot of flack from some
> ietfers about lowering it below best effort, and I felt the additional
> classification needed was excessive for cake, directly. Some OSes
> already do mark it with a background class. I still think it's a good
> idea as it makes ping floods against (for example) your entire 10.
> network (which happened to me under worm attack once) - vanish.
Yea, fair point, but in this case it's just a simulation tool as I don't
know how to get delay times from a udp stream.
I still think cs4 should go to voice on diffserv3 as it does on diffserv4.
Another observation with flent udp_flood, I notice that
is tcp only, is this intended? The test still works, despite the port
unreachables coming back, just no bandwidth reading.
More information about the Cake