%
% x-kernel v3.3
%
% Copyright (c) 1996,1993,1991,1990  Arizona Board of Regents
%

\subsection {The {\var set} Entry}

The {\var set} entry allows you to associate a string with a variable;
the string will replace references to the variable later in the text.
For example,

\begin{verbatim}
    set ip = ip, ip vnet, vnet eth arp, arp eth, eth ethd, ethd sim;

    ...

    host h1n1;
      protocols = megtest vtcp, vtcp $ip;
\end{verbatim}

\noindent means that the reference to {\var \$ip} is replaced by the
protocol stack on the right side of the {\var set} command, which is
equivalent to the following

\begin{verbatim}
host h1n1;
      protocols = megtest vtcp, vtcp ip, ip vnet, vnet eth arp, arp eth, 
                  eth ethd, ethd sim;
\end{verbatim}
