구글링1004;/196; 리눅스 서버 또lj16; 클라1060;Ǻ16;트에서 시험 용도/196; 사용할 만한 해NJ17; Ț12;1060; 1080;나 살6196; 보았lj16;데, ,160;색에 실패 Ȣ16;였습니다.
아시lj16; ǥ16;1032; 1312;Ǻ16; ǥ12;ᓠ1; 드/140; 봅니다.감사합니다.
구글링1004;/196; 리눅스 서버 또lj16; 클라1060;Ǻ16;트에서 시험 용도/196; 사용할 만한 해NJ17; Ț12;1060; 1080;나 살6196; 보았lj16;데, ,160;색에 실패 Ȣ16;였습니다.
아시lj16; ǥ16;1032; 1312;Ǻ16; ǥ12;ᓠ1; 드/140; 봅니다.감사합니다.
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https://www.pico.net/kb/how-can-i-simulate-delayed-and-dropped-packets-in-linux/
Add 10ms of delay to every packet transmitted on eth0:
$ tc qdisc add dev eth0 root netem delay 10ms
Add 10ms of delay and 20ms of jitter to every packet bridged by br0:
$ tc qdisc add dev br0 root netem delay 10ms 20ms
Randomly drop approximately one percent of packets transmitted on eth1:
$ tc qdisc add dev eth1 root netem loss 1%
====
## DROP packet with ratio
10095; uname -mrs
Linux 5.10.199-190.747.amzn2.x86_64 x86_64
10095; sudo iptables -A INPUT -p icmp --icmp-type echo-request -m statistic --mode random --probability 0.50 -j DROP
10095; sudo iptables -L --line-numbers
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 DROP icmp -- anywhere anywhere icmp echo-request statistic mode random probability 0.500000
00000 # <================== !!!
Chain FORWARD (policy DROP)
....
10095; ping -c 10 43.200.105.82
0 π1; 10 ▂ 20 ▃ 30 ▄ 40 ▅ 50 ▆ 60 ▇ 70 █ 80 π1; 90 ▂ 100 ▃ 110 ▄ 120 ▅ 130 ▆ 140 ▇ 150 █ 160 π1; 170 ▂ 180 ▃ 190 ▄ 200 ▅ 210 ▆ 220 ▇
230 █ ¡Ä
PING 43.200.105.82 (43.200.105.82): 56 data bytes
π1;π1;!π1;!π1;π1;!!
4/ 9 (44%) lost; 3/ 4/ 5ms; last: 5ms
4/ 9 (44%) lost; 3/ 4/ 5/ 1ms (last 5)
--- 43.200.105.82 ping statistics ---
10 packets transmitted, 5 packets received, 50.0% packet loss # <============ !!!
round-trip min/avg/max/stddev = 3.628/4.190/5.252/0.619 ms