Centos开启加速器BBR

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刚刚已经把机器内核升级完了,那么现在就要开启一下BBR了。 输入uname -r再次确认下内核是否比4.9要大,只要大于4.9就可以了,本机是4。20那么没问题。 

yum -y remove kernel kernel-tools 使用这个命令可以把旧的内核都删除,为了防止 yum 更新旧版内核之后覆盖了 grub 默认启动项。 

编辑vim /etc/sysctl.conf 添加如下内容 net.core.default_qdisc = fq net.ipv4.tcp_congestion_control = bbr 然后:wq保存退出。 

加载系统参数(正常情况下会输出我们之前加入的内容) sysctl -p 验证bbr是否已经开启 

a.若 sysctl net.ipv4.tcp_available_congestion_control 返回 net.ipv4.tcp_available_congestion_control = reno cubic bbr 则成功

 b.若使用命令 lsmod | grep bbr 返回形如如下形式的信息即成功。 

tcp_bbr                20480  4 

BBR开启完成,加速开始。

标签: bbr开启

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-1 OR 2+913-913-1=0+0+0+1 --

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