Shared X is a mechanism for replicating the window of an X
Windows client program on a number of servers' displays. The modfel is illustrated in
Figure: Shared X Windows
Other shared window paradigms are feasible,
as long as they allow single user applications to produce replicated
bitmap display output, and have modest control mechanisms for the
workstation providing input at any one time.
Conventional Interactive Applications.
These include applications that are normally run on a workstation
interactively by a single user. For instance, editors (whether text or
graphics) fall into this category.
Each of these requires a special purpose Nest.
Simple (mono-media) Conferencing Applications.
These use a multicast network address as
their means of identifying a conference as well as transmitting their
media data. These include the LBL VAT [#VAT##1#]
program and the INRIA IVS program [#IVS##1#]. They need to
have multicast addresses allocated per conference.
Floor control, restricting which source can send at any one time, can
be applied through the Notification Service and a VAT or IVS specific Nest.