tldr/pages/linux/tc.md

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2022-10-10 14:58:46 +01:00
# tc
> Show / manipulate traffic control settings.
> More information: <https://manned.org/tc>.
- Add constant network delay to outbound packages:
`tc qdisc add dev {{eth0}} root netem delay {{delay_in_milliseconds}}ms`
- Add normal distributed network delay to outbound packages:
`tc qdisc add dev {{eth0}} root netem delay {{mean_delay_ms}}ms {{delay_std_ms}}ms`
- Add package corruption/loss/duplication to a portion of packages:
`tc qdisc add dev {{eth0}} root netem {{corruption|loss|duplication}} {{effect_percentage}}%`
- Limit bandwidth, burst rate and max latency:
`tc qdisc add dev eth0 root tbf rate {{max_bandwith_mb}}mbit burst {{max_burst_rate_kb}}kbit latency {{max_latency_before_drop_ms}}ms`
- Show active traffic control policies:
`tc qdisc show dev {{eth0}}`
- Delete all traffic control rules:
`tc qdisc del dev {{eth0}}`
- Change traffic control rule:
`tc qdisc change dev {{eth0}} root netem {{policy}} {{policy_parameters}}`