Peer-to-peer downloading, video streaming and instant message applications
consume network bandwidth and can impact productivity. Bandwidth control reduces network
congestion by controlling communications, reducing unwanted traffic and allowing critical
traffic or services the appropriate bandwidth allocation. Bandwidth control gives
all users
fair access to resources and ensures better access to resources that are more central
to the
organization. Similar to policy rules, bandwidth control can limit traffic based on
source or
destination IP address, traffic type or service, and time of day.
Bandwidth control rules can be as general or specific as needed. The
bandwidth control rules are compared against the incoming traffic in sequence, and
because the
first rule that matches the traffic is applied, the more specific rules must precede
the more
general ones. For example, a rule for a single application must precede a rule for
all
applications if all other traffic-related settings are the same. If the traffic does
not match
any of the rules, the traffic uses the remaining bandwidth.
To create bandwidth control rules, first create some
policy objects, which are used to define the parameters of the policy rules. For more
information, see
About Policy Rules.
The Bandwidth Control page at allows users to:
- View the list of existing rules
- Add, copy, prioritize, and prioritize rules
- Enable or disable rules
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Note
Bandwidth control policies cannot exceed the interface bandwidth
settings.
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