Cory Oldford wrote at 2010-02-12 15:51 -0600: > Policing != shaping Stephan suggested: > "lowering throughput by around 10%" compared to upstream down bandwidth And I said later: > So, I just need to do ingress policing on WAN interface at 10% less than tested > down bitrate... Stephan said: > Yes. You'll need IMQ for this. I said: > Huh? Why not just this? > > tc qdisc add dev eth0 handle ffff: ingress > tc filter add dev eth0 parent ffff: protocol ip prio 50 u32 match ip src \ > 0.0.0.0/0 police rate ${DOWN}kbits burst 10k drop flowid :1 So, Stephan must have been meant ingress shaping (delaying packets?) and I assumed he meant ingress policing. Is there a significant reason to use shaping rather than policing? Yes, policing drops valid packets, but TCP will cause that anyway before backing off sending.
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