Cisco Cisco Web Security Appliance S190 Guía Del Usuario
17-11
Cisco IronPort AsyncOS 7.1 for Web User Guide
OL-23207-01
Chapter 17 Understanding Application Visibility and Control
Controlling Bandwidth
Controlling Bandwidth
The AVC engine allows administrators to control the amount of bandwidth used
for particular application types. Not all application types support bandwidth
controls.
for particular application types. Not all application types support bandwidth
controls.
You can define the following bandwidth limits:
•
Overall bandwidth limit. 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. You might want to define an overall
bandwidth limit to restrict the amount of network traffic used for high traffic
sites, such as streaming media sites. For more information, see
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. You might want to define an overall
bandwidth limit to restrict the amount of network traffic used for high traffic
sites, such as streaming media sites. For more information, see
•
User bandwidth limit. 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. You might want to define user bandwidth
limits to restrict the amount of traffic consumed by heavy usage users to
enforce acceptable use policies. For more information, see
application type. User bandwidth limits traffic from web servers as well as
traffic served from the web cache. You might want to define user bandwidth
limits to restrict the amount of traffic consumed by heavy usage users to
enforce acceptable use policies. For more information, see
.
When both the overall limit and user limit applies to a transaction, the most
restrictive option applies.
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.
Identity group for a URL category and using it in an Access Policy that restricts
the bandwidth.
Note
Defining bandwidth limits only throttles the data going to users. It does not block
data based on reaching a quota.
data based on reaching a quota.
Configuring Overall Bandwidth Limits
The overall bandwidth limit affects the traffic between the Web Security appliance
and web servers for all users on the network.
and web servers for all users on the network.
To define an overall bandwidth limit: