Simulation delay and packet loss TC Qdisc under Linux

TC Qdisc Linux flow control under the

Modify Ping delay of the test

Add rule:  

# TC Qdisc Add dev eth0 root

To delete a rule:  

# TC Qdisc Add dev eth0 root

To Modify a rule:  

# TC Qdisc Change dev eth0 root

To view the rules:

# TC Qdisc List

OR # TC Qdisc Show

 use fromETH0InterfacePingthe delay is +Ms  Up and down fluctuation forTenMs

tc Qdisc Add dev eth0 root netem delay 1000ms 10ms  

[Email protected] ~]# Tcqdisc Show

Qdisc netem 8003:dev eth0 root refcnt 2 limit delay 1.0s 80.0ms

Modify Configuration

[[email protected] ~]# Tcqdisc Chang Dev eth0 root netem delay 10ms 5ms

[Email protected] ~]# Tcqdisc Show

Qdisc netem 8003:dev eth0 root refcnt 2 limit delay 10.0ms 5.0ms

Delete Configuration

tc  Span lang= "ZH-CN" xml:lang= "ZH-CN" >qdisc  del  dev  eth0  root  netem  delay   100ms   10ms

Modify Drop Packets

Tcqdisc Add dev eth0 root netem c11> loss 10%

Randomly generated duplicate packets

[email protected]~]# tc Qdisc Change Dev eth0root netem duplicate 1%

[Email protected] ~]# tcqdisc show Dev eth0

Qdisc netem 8004:root refcnt 2 limit + duplicate 1%

Randomly generating damaged packages

[[email protected] ~]# Tcqdisc Chang Dev eth0 root netem corrupt 0.1%

[Email protected] ~]# Tcqdisc Show

Qdisc netem 8004:dev eth0 root refcnt 2 limit corrupt 0.1%

The above can be superimposed, that is, an interface can be simulated loss of packets, but also to simulate the delay ...

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Simulation delay and packet loss TC Qdisc under Linux