tcp retransmit

Setting

proc/sys/net/ipv4/tcp_syn_retries
proc/sys/net/ipv4/tcp_synack_retries
proc/sys/net/ipv4/tcp_retries1
proc/sys/net/ipv4/tcp_retries2
proc/sys/net/ipv4/tcp_early_retrans
proc/sys/net/ipv4/tcp_retrans_collapse
proc/sys/net/ipv4/tcp_orphan_retries

initial RTO

• Customize TCP initial RTO (retransmission timeout) with BPF

• BPF: The future of configs - Set default retransmit time

RTO

• 聊一聊重传次数 - perthcharles.github.io

Ref

• TCP Retransmission May Be Misleading - arthurchiao.art

• TCP的MTU Probe、MSS、Retransmit 的关系 - cloud.tencent.com