验证Google BBR是否开启
| 12345678910 | #先查看内核版本uname -a#再检查net的返回参数一般为：bbr cubic reno 或者 reno cubic bbrsysctl net.ipv4.tcp_congestion_control #返回值：net.ipv4.tcp_congestion_control = bbrsysctl net.ipv4.tcp_congestion_control #返回值：net.core.default_qdisc = fqsysctl net.core.default_qdisc |
关闭Google BBR
同理，关闭Google BBR，把对应参数改掉即可
| 1234567 | sudo vim /etc/sysctl.conf #用#注释掉：#net.core.default_qdisc = fq#net.ipv4.tcp_congestion_control = bbr sysctl -p |
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