E.3. About Our Formal Perspective
The assertions we are going to make about VRRP virtual routers are organized around certain predicates to be applied to VRRP routers.
F(r, v, t)
In this formula “F” is a predicate with three arguments: r, representing an operational VRRP router; v, referring to a virtual router; and t, indicating a time point. For example, we can symbolize the statement
r is the master of the virtual router v at time t
as
(23) M(r, v, t).
We propose the following simplification in interpreting this type of assertion: let t mean “between now and the convergence moment of the election.” Under this simplification
x is master
should be interpreted to mean
x is either master right now or will become master at the end of the next election. ...
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