topic Re: DECnet over TCP/IP in Operating System - OpenVMS

DECnet over TCP/IP

Kjell Carlsson — Thu, 19 Feb 2004 03:43:59 GMT

Hi
I have a number of VMS-systems using DECnet over TCP/IP. Host names / IP-addresses are delivered by a central DNS. But when changing the IP-address of a node the other VMS-nodes don't reach the changed node without a manual DECnet Plus cache flush. Is there some way to overcome this?

Best regards
KjellC

Re: DECnet over TCP/IP

Karl Rohwedder — Thu, 19 Feb 2004 03:49:21 GMT

with a little CRON job :-)

Re: DECnet over TCP/IP

Kjell Carlsson — Thu, 19 Feb 2004 04:06:22 GMT

Sorry Karl. I don't understand your answer.
KjellC

Re: DECnet over TCP/IP

Karl Rohwedder — Thu, 19 Feb 2004 05:00:42 GMT

I was more joking than giving a real help,
if you change IP adresses often, just flush the
cache every N hours/minutes/days...

Re: DECnet over TCP/IP

Kirsten Knüttel — Thu, 19 Feb 2004 07:07:35 GMT

Hello,

in the decnet configuration (@sys$manager:net$configure advanced) you can set the
Naming cache timeout value
Normally this value is 30 days. Perhaps it helps you if you decrease this value (but I've never tried, normally I flush the cache).

Kind regards,

Kirsten

Re: DECnet over TCP/IP

Uwe Zessin — Thu, 19 Feb 2004 07:30:40 GMT

Kjell,

'cron' is a utility from the Unix world that is used to run job at regular intervals. That avoids the requirement for self-submitting batch jobs. You can read some more background information at:

http://www.unixgeeks.org/security/newbie/unix/cron-1.html

Over the years several people have done ports / reimplementations of 'cron' for VMS.

Re: DECnet over TCP/IP

Lokesh_2 — Thu, 19 Feb 2004 15:19:10 GMT

Hi,

You can make command procedure to flush the cache and can run it everyday as batch job or using polycenter scheduler . On our systems we are doing the same...

Thanks & regards,
Lokesh