What is the use of NBAR ? is it a enhanced version of QOS how is it use ?

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QOS of service includes some steps:-

1)Classification

2)Marking

3)Queuing

4)Congestion Management and avoidance

Classification is done through NBAR . NBAR allows network routers to recognize programs ( you can use match protocol keyword in class map ) and take various actions in policy maps.

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  1. in Filesystem.php line 111
  2. at HandleExceptions->handleError(2, 'file_put_contents(/var/www/html/storage/framework/sessions/BuGygGQplGDGARMDpwIXfaHw2w5pJ9N9mW3PudKR): failed to open stream: No space left on device', '/var/www/html/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php', 111, array('path' => '/var/www/html/storage/framework/sessions/BuGygGQplGDGARMDpwIXfaHw2w5pJ9N9mW3PudKR', 'contents' => 'a:4:{s:6:"_token";s:40:"3pYJYVNKzsw00X4bt4cI5uDNs1DhLo5jnwxFmplo";s:11:"viewed_urls";a:1:{i:0;s:69:"what-is-the-use-of-nbar-is-it-a-enhanced-version-of-qos-how-is-it-use";}s:9:"_previous";a:1:{s:3:"url";s:97:"http://www.networkbulls.com/what-is-the-use-of-nbar-is-it-a-enhanced-version-of-qos-how-is-it-use";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', 'lock' => true))
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  4. at Filesystem->put('/var/www/html/storage/framework/sessions/BuGygGQplGDGARMDpwIXfaHw2w5pJ9N9mW3PudKR', 'a:4:{s:6:"_token";s:40:"3pYJYVNKzsw00X4bt4cI5uDNs1DhLo5jnwxFmplo";s:11:"viewed_urls";a:1:{i:0;s:69:"what-is-the-use-of-nbar-is-it-a-enhanced-version-of-qos-how-is-it-use";}s:9:"_previous";a:1:{s:3:"url";s:97:"http://www.networkbulls.com/what-is-the-use-of-nbar-is-it-a-enhanced-version-of-qos-how-is-it-use";}s:6:"_flash";a:2:{s:3:"old";a:0:{}s:3:"new";a:0:{}}}', true) in FileSessionHandler.php line 83
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  10. at require_once('/var/www/html/public/index.php') in index.php line 20