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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

4452.0. "How to disable ports on the fly using clearVISN" by VDEV01::MAEHNER () Wed Jun 04 1997 10:52

How to disable ports (in a DECconcentrator 900MX) on the fly?

Requirement: The network at our customer site is configured/controlled
using HUBs/clearVISN. In case of a security alarm, some portions of the
network need to be disabled. In our case, we need to disable two ports
on a DECconcentrator 900MX.

This is what I did:

1) When the system was running in normal mode (no alarm set), I used
   the recovery manager and saved the DECconcentrator port data in 
   a .sdf file and .cmd file. (To be able to restore the original
   configuration later).

2) To test the alarm case, I disabled the given ports, the communication
   was blocked, as expected. I saved the port data in a different .sdf and
   .cmd-file using recovery manager.

3) I enabled the given ports to restore the original configuration.

4) I tried to disable the given ports by loading the alarm-configuration
   files using c:\clearVIS\recov\recov.exe -j xxx.cmd. It loaded the
   file with no error message but did NOT disable the ports.


Question: Can I do this in principle, what went wrong, do I need to
use the full 900MX configuration (not only the port data), or use some 
other approach? We need to solve the customer requirement to automatically
disable a given port by software (on the fly) and reload the original 
configuration after the alarm is resolved.

Any help is greatly appreciated.

Regards,

Herbert
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4452.1NETCAD::GALLAGHERWed Jun 04 1997 16:0217
Herbert,

How did you disable the ports?

}Requirement: The network at our customer site is configured/controlled
}using HUBs/clearVISN. In case of a security alarm, some portions of the
}network need to be disabled. In our case, we need to disable two ports
}on a DECconcentrator 900MX.
 
Knowing few of the details, it seems to me that a simpler approach might 
be to trigger and SNMP script that sets "fddimibPORTAction.1.port" to 
'disablePort(4)'.  (I don't know how you'd trigger the script, but you 
seem to be able trigger clearVISN Recovery Manager okay so I guess 
you've solve that part of the problem.)  Was this considered too?
Is doing this with clearVISN key to solving the problem?

						-Shawn  
4452.2Using the approach described in manual...VDEV01::MAEHNERThu Jun 05 1997 02:5423
Hi Shawn,

Thanks for your reply. Just a few more details:

I am using the approach as described in the clearVISN manual, Using Recovery
Manager for Automatic Network Configuration, page 9-18 ff. 
In example 1, step 2 of page 9-18 they select ALL devices and parameter subsets.
In my case, I just want to disable two ports, hence I justs created a .sdf file
and .cmd file to turn off/on these ports.
But for some reason, the procedure as explained in example 1 did not work for
me. Please, refer to the clearVISN manual to fully understand what I mean and
tried to explain in my note.

Generally, I don't care, in which way to disconnect/disable the given ports.
If you can advise me of a different way which I could do in a command procedure
I'd be more than happy. (I don't understand what you mean by "...sets
fddimibPORTAction.1.port to 'disablePort(4)' ").

Any help is greatly appreciated!

Regards,

Herbert