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  3. December 2006

Re: Program to monitor Connectivity

Phil Kestenbaum wrote:

   9. Program to monitor Connectivity (Phil Kestenbaum)

date: Wed, 27 Dec 2006 12:22:47 -0500

Anyone written a program that will make a simple connectivity check to
windows Lan? Is RPG ILE acceptable language to write this in?

The idea would be to either establish a never-ending job from Windows to
Iseries, monitor that this is active on Iseries and if it takes a hit,
program would then pump message queues and send e-mail or other type of
alerts to Manager. Or if there is already a message group that would
contain the Interruption-in-serice info then just monitor those error
messages on the Iseries?


Phil:
What you want _might_ partly be the NetServer 'status' that can be inferred from the info returned by the List Server Information (QZLSLSTI) API. See ( http://code.midrange.com/index.php?id=933ee1f1bf ) for a basic demo. Also see: 

http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/apis/qzlslsti.htm
 or
http://tinyurl.com/ygz94k

...for the API documentation. It's one of the Server Support APIs.
Since the status of NetServer is pretty critical to whether or not Windows shares are accessible, this might be a sample of one of the procs you might use for your need. However, 'connectivity' isn't quite the same as 'accessibility' or some other term.
That is, you might execute a ping to determine that a network route exists; but that won't say if Windows shares can be accessed. You might also actually start a sockets connection to the OS/400 host server mapper -- that would tell you more than a ping but still might not give enough info. Further, depending on various firewall/router configurations, some communication might be allowed to travel towards your AS/400 but not back the opposite direction, or vice versa. 

You might need to elaborate on exactly what you want/need.

Tom Liotta

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