IPVS

针对 LB 的 Linux 内核模块

apk add ipvsadm

• keepalived
• VRRP - Virtual Router Redundancy Protocol
  • https://datatracker.ietf.org/wg/vrrp/documents/
• BFD - Bidirectional Forwarding Detection
  • https://datatracker.ietf.org/wg/bfd/documents/