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Conference csc32::consolemanager

Title:POLYCENTER Console Manager
Notice:Kits, Scans, Docs on CSC32:: as PCM$KITS:,PCM$DOCS:, PCM$SCANS:
Moderator:CSC32::BUTTERWORTH
Created:Thu Aug 06 1992
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1541
Total number of notes:6564

1140.0. "Help on redundant Terminal Server configuration" by 37469::VAUGHN (Mike Vaughn DTN 339-5325) Tue Jan 02 1996 14:55

Hello -

	In note 963 terminal server failures are discussed.  I'm also
designing a system where the customer requires "no single point of failure,"
and I was wondering if anyone had any comments on how to accomplish this.
Here's what I have so far:

                             (3 lines)
                            |----------|Term. Serv. 1(Telnet)
         RS-232 ABC Switch  |            |
		  (customer |(3 lines)   |
		   supplied)|----------|Term. Serv. 2(Telnet)
               ____________              |     |
                |   \    \               |     |
                |    \    \              |     |
|---------------------------------X------------X-------X-------|
                |    |    |       |      |             |
                |    |    |       |      |             |
|-------------------------------X--------X-----------X---------|
                |    |    |     | |                  | |
                |    |    |     | |                  | |
                |    |    |     | |                  | |
  AS1000 1 console   |    |     PCM System 1   PCM System 2
        AS1000 2 console  |
              AS1000 3 console


The customer would take care of supplying the ABC switch and the failover
associated with it.  Specifically what do I have to do to configure PCM
to handle this type of hardware high-availability system?  Is this valid,
and are there any viable alternatives?  (And yes, I know that terminal
servers fail infrequently, but these guys are worried about the ethernet
cable being a single point of failure!)

Thanks in advance for any help.

mike
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