This document provides both a functional description and a detailed
specification of the Temporally-Ordered Routing Algorithm (TORA)--a
distributed routing protocol for multihop networks. A key concept in
the protocol's design is an attempt to de-couple the generation of
far-reaching control message propagation from the dynamics of the
network topology. The basic, underlying algorithm is neither
distance-vector nor link-state; it is a member of a class referred to
as link-reversal algorithms. The protocol builds a loop-free,
multipath routing structure that is used as the basis for forwarding
traffic to a given destination. The protocol can simultaneously
support both source-initiated, on-demand routing for some
destinations and destination-initiated, proactive routing for other
destinations.
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