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IPVS (IP Virtual Server) implements transport-layer load balancing, usually called Layer 4 LAN switching, as part of the Linux kernel. It's configured via the user-space utility ipvsadm(8) tool.

IPVS is incorporated into the Linux Virtual Server (LVS), where it runs on a host and acts as a load balancer in front of a cluster of real servers. IPVS can direct requests for TCP- and UDP-based services to the real servers, and make services of the real servers appear as virtual services on a single IP address. IPVS is built on top of Netfilter.cite-ref-linuxvirtualserver-1-0[1]

IPVS is merged into versions 2.4.x and newer of the Linux kernel mainline.cite-ref-linuxvirtualserver-1-1[1]

• See also

• References

• External links

• Netfilter and nftables

• Network scheduler

cite-note-linuxvirtualserver-11. ↑ "IPVS Software - Advanced Layer-4 Switching". linuxvirtualserver.org. 2011-02-08. Retrieved 2013-11-24.

• Source archive

• Virtual Server Configuration Wiki