Anyone can advice. How to monitor bandwidth limit for application control ?
SmartEvent Views is what you are looking for.
Thank you for your advice but I would like to see real time utilize or exceed drop for limit policy when user complain about slow access.
Note - The Security Gateway implements the Limit action by dropping successive packets which exceed the allowed bandwidth.
How to monitor exceed drop ? I have no see this log from SmartConsole.
Then you want to use SmartLog like this:
Bandwidth management by dropping packets is a bad strategy. You can get much better results by changing (reducing) window sizes in responses and holding back acknowledgement packets.
Nothing gets dropped but you let the TCP protocol do the bandwidth limiting.
Not somethink I invented. Companies like PacketShaper (bought by Blue Coat, bought in turn by Symantec) did create great appliances with features like this.
Thank you Danny. Now I can see drop log from smartview for bandwidth limit policy.
i have the same question as you.
Could you please guide me on how to get those statistics as you did?
When researching my book I dug into the APCL Limit feature, trying to find a way to disable APCL limits "on the fly" for testing purposes or to monitor real-time statistics for packets dropped due to a Limit. The goal was to ensure an enforced Limit was not the cause of poor performance. Other than the statistics that are included in the traffic logs as demonstrated by Danny Jung above, there isn't a direct way to do that. I also discovered that APCL/URLF cannot be disabled "on the fly" like Threat Prevention can with fw amw unload.
However fw ctl zdebug drop will show real-time packet drops due to an APCL limit with the message: PSL Drop: APPI_LIMIT.
PSL Drop: APPI_LIMIT
Also watch out for this issue when limits are applied to traffic subject to HTTPS Inspection:
sk70600: Connectivity issues when configuring Application Control limit and enabling HTTPS Inspection
-- Second Edition of my "Max Power" Firewall Book Now Available at http://www.maxpowerfirewalls.com
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