I read that there's another tool for netfilter that allows you to add latency to a ratelimit.

Does anyone have an example of this?


I use the following script to emulate various network conditions:


intf="dev eth0"
delay="delay 400ms 100ms 50%"
loss="loss random 0%"
corrupt="corrupt 0%"
duplicate="duplicate 0%"
reorder="reorder 0%"
rate="rate 512kbit"

tc qdisc del $intf root
tc qdisc add $intf root netem $delay $loss $corrupt $duplicate $reorder $rate

echo "Cancel with:"
echo "tc qdisc del $intf root"

In your case, to introduce a 400ms delay and a rate limit of 512kbit/s on outgoing packets on device eth0:

tc qdisc del dev eth0 root
tc qdisc add dev eth0 root netem delay 400ms rate 512kbit


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