Cisco Cisco Web Security Appliance S170 Guida Utente

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AsyncOS 8.7 for Cisco Web Security Appliances User Guide
 
Chapter 15      Managing Access to Web Applications
  Controlling Bandwidth
Controlling Bandwidth
When both the overall limit and user limit applies to a transaction, the most restrictive option applies. 
You can define bandwidth limits for particular URL categories by defining an Identity group for a URL 
category and using it in an Access Policy that restricts the bandwidth. 
You can define the following bandwidth limits:
Note
Defining bandwidth limits only throttles the data going to users. It does not block data based on reaching 
a quota. The Web Proxy introduces latency into each application transaction to mimic a slower link to 
the server.
Configuring Overall Bandwidth Limits
Step 1
Choose Web Security Manager > Overall Bandwidth Limits
Step 2
Click Edit Settings.
Step 3
Select the Limit to option.
Step 4
Enter the amount of traffic to limit in either Megabits per second (Mbps) or kilobits per second (kbps).
Step 5
Submit and Commit Changes.
Configuring User Bandwidth Limits
You can define user bandwidth limits by configuring bandwidth control settings on the Applications 
Visibility and Control page of Access Policies. You can define the following types of bandwidth controls 
for users in Access Policies:
Bandwidth 
limit
Description
Link to 
Task
Overall 
Define an overall limit for all users on the network for the 
supported application types. The overall bandwidth limit 
affects the traffic between the Web Security appliance and web 
servers. It does not limit traffic served from the web cache. 
User 
Define a limit for particular users on the network per 
application type. User bandwidth limits traffic from web 
servers as well as traffic served from the web cache.