\subsection*{NAME}

\noindent VSIZE (Size Virtual-Protocol)

\subsection*{SPECIFICATION}

\noindent 
S. O'Malley and L. Peterson.  A Dynamic Network Architecture.  {\it
ACM Transactions on Computer Systems 10}, 2 (May 1992), 110--143.

\medskip
\noindent  S. O'Malley and L. Peterson. {\it A New Methodology for
Implementing Network Software}, University of Arizona Tech Report
TR90-29, August 1990.

\subsection*{SYNOPSIS}

\noindent VSIZE is a virtual protocol that selects a lower-level
network protocol (e.g., BLAST vs. ETH) based on the size of the
message being sent.

\subsection*{REALM}

VSIZE is in the ASYNC realm.

\subsection*{PARTICIPANTS}

VSIZE passes participants to the lower protocols without manipulating
them. 

\subsection*{CONTROL OPERATIONS}

VSIZE forwards control operations to the ``large message'' protocol.

\subsection*{CONFIGURATION}

VSIZE expects to be configured above two ASYNC protocols with the
``short message'' protocol first.

\subsection*{AUTHOR}

\noindent Ed Menze