CHAPTER 10
Prefix-Specific Counting and Policing
Actions
•
Prefix-Specific Counting and Policing Overview on page 97
•
Filter-Specific Counter and Policer Set Overview on page 100
•
Example: Configuring Prefix-Specific Counting and Policing on page 100
•
Prefix-Specific Counting and Policing Configuration Scenarios on page 107
Prefix-Specific Counting and Policing Overview
This topic covers the following information:
•
Separate Counting and Policing for Each IPv4 Address Range on page 97
•
Prefix-Specific Action Configuration on page 98
•
Counter and Policer Set Size and Indexing on page 99
Separate Counting and Policing for Each IPv4 Address Range
Prefix-specific counting and policing enables you to configure an IPv4 firewall filter term
that matches on a source or destination address, applies a single-rate two-color policer
as the term action, but associates the matched packet with a specific counter and policer
instance based on the source or destination in the packet header. You can implicitly
create a separate counter or policer instance for a single address or for a group of
addresses.
Prefix-specific counting and policing uses a
prefix-specific action
configuration that
specifies the name of the policer you want to apply, whether prefix-specific counting is
to be enabled, and a source or destination address prefix range.
The prefix range specifies between 1 and 16 sequential set bits of an IPv4 address mask.
The length of the prefix range determines the size of the counter and policer
set
, which
consists of as few as 2 or as many as 65,536 counter and policer instances. The position
of the bits of the prefix range determines the indexing of filter-matched packets into the
set of instances.
97
Copyright © 2016, Juniper Networks, Inc.
Summary of Contents for EX9200 Series
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