Cisco Cisco Web Security Appliance S170 Guida Utente

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23-5
Cisco IronPort AsyncOS 7.5.7 for Web User Guide
 
Chapter 23      Reporting
Using the Reporting Tab
Note
Not every column is available for every report page. Click the Columns link for each report page to view 
the available columns. 
 describes the columns available when working with reports.
Table 23-2
Report Column Descriptions 
Column Name
Description
Domain or Realm
The domain or realm of the user displayed in text format.
User ID or Client IP
The username or client IP address of the user displayed in text format.
Bandwidth Used
The amount of bandwidth that is used by a particular user or action. 
Bandwidth units are displayed in Bytes or percentage.
Bandwidth Saved by 
Blocking
The amount of bandwidth that has been saved due to blocking certain 
transactions. Bandwidth units are displayed in Bytes
Time Spent
The amount of time spent on a web page. For purposes of investigating a 
user, the time spent by the user on each URL category. When tracking a 
URL, the time spent by each user on that specific URL.
To calculate the time spent, AsyncOS assigns each active user with 60 
seconds of time for activity during a minute. At the end of the minute, the 
time spent by each user is evenly distributed among the different domains 
the user visited. For example, if a user goes to four different domains in an 
active minute, the user is considered to have spent 15 seconds at each 
domain.
For the purposes of the time spent value, considering the following notes:
  •
An active user is defined as a username or IP address that sends HTTP 
traffic through the appliance and has gone to a website that AsyncOS 
considers to be a “page view.”
  •
AsyncOS defines a page view as an HTTP request initiated by the user, 
as opposed to a request initiated by the client application. AsyncOS 
uses a heuristic algorithm to make a best effort guess to identify user 
page views.
Units displayed in Hours:Minutes format. 
Allowed URL Category
The number and type of categories that have been allowed. Units displayed 
in transaction type.
Monitored URL 
Category
The number and type of categories that are being monitored. Units displayed 
in transaction type.
Warned URL Category
The number and type of categories that have initiated a warning. Units 
displayed in transaction type.
Blocked by URL 
Category 
The transaction that has been blocked due to URL Category. Units displayed 
in transaction type.
Blocked by Application 
or Application Type
The application that has been blocked due to application type. Units 
displayed in transaction type.
Blocked by Web 
Reputation
The transaction that has been blocked due to web reputation. Units 
displayed in transaction type.