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ASA - Implications of enabling ASDM history

Posted on 2014-02-12
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Last Modified: 2014-02-12
Hello All,

I've inherited an environment that has all regional offices linked using ASA VPN tunnels.  I want to get some idea of the traffic flowing across the links.  I've found that I can export Byte Counts and Bit Rates using ASDM.

At the moment ASDM history is switched off on the core ASA at the centre of a star topology.  I want to switch it on.
1- What are the implications of doing this?
2- Will it run out of disk space if it's saving these logs?
3- How can I tell if there is an issue with it running out of space?

This is the one box I don't want to bring down :)

Any help or background would be great.

Many thanks
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Question by:Tommy_Cooper
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max_the_king earned 2000 total points
ID: 39852911
Hi,

1. I see no implications you should worry about
2. It shouldn't since it goes filling up a specific buffer on ASA
3. In case you want to check how much free space you have in your ASA just do a "dir" or "sh flash" command: you'll see the space available on flash disk.

you can check your history logs of last 10min, 12h, 5d or 1 hour, like the following:

ASA# sh asdm history view ?

  10m  10 minutes
  12h  12 hours
  5d   5 days
  60m  60 minutes
  all  Entire view

You may want to read the following link as well:
http://packetsneverlie.blogspot.it/2010/09/how-to-view-historical-performance-data.html

hope this helps
max
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by:Tommy_Cooper
ID: 39852938
Hi Max,

That's great. Many thanks indeed!

Oddly enough - I had already seen that article :)

All the best
Tommy
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