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Fastest way to determine NT machines availability

I want to write a script that will query 25~35 devices to determine if they are on the network or not (up or down).  I'm going over a 56k connection and I would like something that works faster than ping.  Any suggestions?  I'm running XP and boxes I'm interested in are running NT.

thanks in advance,
-Jess
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WishinIwasFishin
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WishinIwasFishin
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1 Solution
 
lrmooreCommented:


> that works faster than ping
That's a tall order, but a 32byte ping is much less bandwidth intensive than just about anything else. Take a look at some of the tools available from SolarWinds:
http://www.solarwinds.net
or from Klever
http://www.klever.net

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WishinIwasFishinAuthor Commented:
Microsoft doesn't have anything like a netbios response?

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lrmooreCommented:
C:\>nbtstat /?
C:\>net view /?

not faster than ping, guaranteed.
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WishinIwasFishinAuthor Commented:
So if nbtstat -a <machine> shows results, I should also be able to ping it right?  

I guess I'm a little unclear on how exactly nbtstat works.  I understand the information it gives me, but not how it goes about getting that information.

However, it is about twice 2 three times fatser than ping!
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lrmooreCommented:
The reason it could be faster is because it uses a local cache, it does not do a real-time check, so it is not accurate.
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lrmooreCommented:
If you have a WINS server, it uses information from that server, not direct communications to the individual workstations, only if it can't find anything is cache, WINS, LMHOSTS, hosts, etc, then it will request directly to the IP address, assuming you use the -A <ip address>
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WishinIwasFishinAuthor Commented:
How long does the wins server hold onto this information?  hours... days... weeks..?  If it's hours this will work for me, days I'll think about it, weeks it's out of the question.
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lrmooreCommented:
Clients are supposed to announce changes to the WINS servers, but the information is there indefinately.
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WishinIwasFishinAuthor Commented:
Thanks, I get it now.
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