December 2005 © Foundry Networks, Inc. 15 1
Chapter 15
Traffic Policies
X-Series devices use traffic policies to:
• Rate limit inbound traffic
• Count the packets and bytes per packet to which ACL permit or deny clauses are applied
This chapter describes how traffic policies are implemented and configured in the FESX, FSX, and FWSX
devices. This chapter contains the topics listed in Table 15.1.
About Traffic Policies
Traffic policies consist of policy names and policy definitions.
• Traffic policy name – This is a string of up to 8 alphanumeric characters that identifies individual traffic policy
definitions.
• Traffic policy definition (TPD) – This is the command filter associated with a traffic policy name. A TPD can
define any one of the following:
• Rate limiting policy
• ACL counting policy
• Combined rate limiting and ACL counting policy
The maximum number of supported active TPDs is a system-wide parameter and depends on the device you
Table 15.1: Chapter Contents
Description See Page
Overview of traffic policies 15-1
Configuration notes and feature limitations 15-2
Viewing and configuring the maximum number of traffic
policies supported on a device
15-3
Using traffic policies to rate limit traffic 15-3
Using traffic policies for ACL and rate limit counting 15-7
Viewing traffic policies 15-10
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