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PIX ASDM connections per second problem.

Posted on 2009-05-06
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Last Modified: 2012-05-06
I see my connections per second usage drop every 5 minutes. For example, usage stays steady at 200 then spikes to 400 and drops to 0 and back to 200. This occurs every 5 minutes. I think I have checked everything on router and switch and see not errors on the port connections. Has anyone seen this before that could offer some other places I should look?
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Question by:Jelonet
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by:ngravatt
ID: 24315752
i am looking at my 10 gig ASA right now and see similar results.  At times, i have 700 meg of throughput on each interface and connections per second at 358.  At times this will drop down to 45 c/s and 66 megs of throughput.
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by:Jelonet
ID: 24316617
I can understand a drop sometimes but I can time it for exactly every five minutes. So, every five minutes I go from 200 t0 400 to zero and back to 200 c/s would be considered normal behavior?
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ngravatt earned 750 total points
ID: 24316830
now that you bring my attention to it, this graph does not look too accurate.  I attached the picture of from my server firewall.

but, if i go to the command prompt you can see the active number of connections by typing, 'show conn'

on my firewall, this number just keeps going up.

how are you checking this statistic.

conn.jpg
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Author Comment

by:Jelonet
ID: 24318927
I have been watching the same graphic display- conn per sec usage. Then issue sh conn when it spikes but see no change in the CLI. I also, started monitoring the interfaces through the ASDM using the monitor tab for each interface. I see some correlaltion between one of my interfaces but not everytime I see the spike on the c/s graph. I would think when the spike came I would see the connection limits change with a sh conn.
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Author Comment

by:Jelonet
ID: 24324605
I think I have found the culprit on one of my interfaces. I need to do more research to pinpoint. Thanks for your help.
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