Jack Posted November 12, 2021 Share Posted November 12, 2021 (edited) ------------------------------------------------------- CentOS8打开BBR加速,使用阿里云轻量的设置 ------------------------------------------------------- 打开BBR vi /etc/sysctl.conf 将内容修改为 vm.swappiness = 0 kernel.sysrq=1 net.ipv4.neigh.default.gc_stale_time=120 # see details in https://help.aliyun.com/knowledge_detail/39428.html net.ipv4.conf.all.rp_filter=0 net.ipv4.conf.default.rp_filter=0 net.ipv4.conf.default.arp_announce = 2 net.ipv4.conf.lo.arp_announce=2 net.ipv4.conf.all.arp_announce=2 # see details in https://help.aliyun.com/knowledge_detail/41334.html net.ipv4.tcp_max_tw_buckets = 5000 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_max_syn_backlog = 1024 net.ipv4.tcp_synack_retries = 2 net.core.default_qdisc = fq net.ipv4.tcp_congestion_control = bbr 保存离开 :wq ------------------------------- 关闭selinux ------------------------------- vi /etc/sysconfig/selinux 改為 SELINUX=disabled 保存离开 :wq 重启 sudo reboot sysctl net.ipv4.tcp_available_congestion_control 返回值一般为: net.ipv4.tcp_available_congestion_control = reno cubic bbr sysctl net.ipv4.tcp_congestion_control 返回值一般为: net.ipv4.tcp_congestion_control = bbr sysctl net.core.default_qdisc 返回值一般为: net.core.default_qdisc = fq lsmod | grep bbr 返回值有 tcp_bbr 说明 bbr 已启动 Edited November 12, 2021 by Jack Link to comment
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