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simulate_lag.txt:add doc for simulating lag

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This may help with testing
This commit is contained in:
andy5995
2018-09-20 01:38:01 -05:00
committed by Andy Alt
parent d992eaa4bb
commit c4404d4983
1 changed files with 28 additions and 0 deletions
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28
mk/linux/simulate_lag.txt Normal file
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As root user, to simulate lag on a Linux system
tc qdisc add dev wlan1 root netem delay 300ms
To remove
tc qdisc del dev wlan1 root
Example output:
When the rule is added, pinging a PC on a LAN
64 bytes from 192.168.254.42: icmp_seq=93 ttl=255 time=306 ms
64 bytes from 192.168.254.42: icmp_seq=94 ttl=255 time=303 ms
64 bytes from 192.168.254.42: icmp_seq=95 ttl=255 time=303 ms
64 bytes from 192.168.254.42: icmp_seq=96 ttl=255 time=304 ms
64 bytes from 192.168.254.42: icmp_seq=97 ttl=255 time=304 ms
When the rule is removed
64 bytes from 192.168.254.42: icmp_seq=98 ttl=255 time=5.69 ms
64 bytes from 192.168.254.42: icmp_seq=99 ttl=255 time=3.82 ms
64 bytes from 192.168.254.42: icmp_seq=100 ttl=255 time=4.89 ms
64 bytes from 192.168.254.42: icmp_seq=101 ttl=255 time=3.60 ms
64 bytes from 192.168.254.42: icmp_seq=102 ttl=255 time=5.08 ms
64 bytes from 192.168.254.42: icmp_seq=103 ttl=255 time=3.44 ms
64 bytes from 192.168.254.42: icmp_seq=104 ttl=255 time=5.40 ms