A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Dynamic Host Configuration Working Group of the IETF.
Title : DHCP Failover Protocol
Author(s) : R. Droms, K. Kinnear et. al.
Filename : draft-ietf-dhc-failover-12.txt
Pages : 133
Date : 2003-3-6
DHCP [RFC 2131] allows for multiple servers to be operating on a
single network. Some sites are interested in running multiple
servers in such a way so as to provide redundancy in case of server
failure. In order for this to work reliably, the cooperating primary
and secondary servers must maintain a consistent database of the
lease information. This implies that servers will need to coordinate
any and all lease activity so that this information is synchronized
in case of failover.
This document defines a protocol to provide such synchronization
between two servers. One server is designated the 'primary' server,
the other is the 'secondary' server. This document also describes a
way to integrate the failover protocol with the DHCP load balancing
approach.
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