This documentation is a revised edition of the
MICE documentation of
National Support Centre London
Revision by Jens Elkner (elkner@irb.cs.uni-magdeburg.de).
Starting wb
The invocation may be from a command line or from the
LBL Session Directory.
When starting from the command-line, there are several parameters
described below:
- -N username
- username is the name shown for the participant in the Par
ticipant Information Window
- -C confname
- confname is the name which will appear as the title in the Participant Information Window and on the window frame of the wb session.
- -K key
- key is an encryption key which may be specified to provide confidentiality.
Since there is no way of preventing access to the wb, this allows a degree of pri
vacy.
- -t ttl
- ttl is the time-to-live for the packets generated by the application.
This is the parameter which governs the scope of the sharing on the network since
it defines how far the multi-cast may extend.
The values given by Steve Deering may be taken as a guide, but you
should always err on the low side to reduce unecessary traffic on the mbone.
- 0 single host - for familiarization
- 1 subnet only
- 32 site
- 64 region
- 128 continent
- 255 unrestricted
- -p or -l or +l
- use these to set the initial orientation of the whiteboard:
- -p for portrait
- -l for landscape
- +l for seascape
The default value is landscape.
- -S address/port
- To suppress/mute new sites. It means that new sites will come up muted and none of their input will show up on your display.
- -P size_in_bytes
- Wb will not send a PS page bigger than MaxPostScriptSize.
MaxPostScriptSize defaults to 32KB but can be changed (up to a max of 1MB) be setting the X resource or using this parameter.
If you get the error:
-wb: can't send PS pages larger than NNN bytes (is SSS)
look at the section in The Whiteboard Window on
importing PostScript files for suggestions on how to reduce the size of the files.
An example of a wb invocation is:
wb -t 127 224.2.17.12/32415
which invokes wb for the Mice seminars.