Bridge extension

[Robert Olson]

Due to popular demand and broken networks, we're going to give y'all a two 
week extension on the bridges. We plan now to take them down on March 14. 
Please keep us (either the ag-tech list or at least Bill Nickless 
(nickless at mcs.anl.gov) and myself (olson at mcs.anl.gov)) updated on your 
progress.

We realize a fallback plan is required. We'd like to propose the following 
policy:

Bridges shall be used during a presentation as a fall back position 
only.  If you are participating in an important event, please be prepared 
to contact your organization networking folks in real time to resolve any 
issues.  (Note that running the Java beacon is a great way to discover 
these problems in advance.)  Getting office, cell, and pager numbers for 
responsible network folks is highly recommended.

If, during an event, there is suspicion that IP multicast has failed and 
that we need to fall over to the bridge, this should be announced in the 
back channel mud session.  Simultaneously, your organization network folks 
need to be contacted to look into the problem.  After a few minutes (say, 
5-10) of network debugging, the bridges will be configured to accept your 
connection and you can switch over until the event is complete.

--bob