Policy Resources Overview

The maximum number of policies that you can attach to interfaces on an E Series router depends on the classifier entries that make up the policy and the number of attachment resources available on the interface. JunosE Software allocates interface attachment resources when you attach policies to interfaces. See Interface Attachment Resources Overview for information about attachment resources.

An E Series router supports software and hardware classifiers. A policy can be made up of any combination of software and hardware classifiers. You use the classifier-list command to configure all classifiers.

There are two categories of hardware classifiers, depending on the type of line module being used. OC48/STM16, GE-2, and GE-HDE line modules support content-addressable memory (CAM) hardware classifiers—all other line modules support FPGA hardware classifiers. Table 1 lists the classifiers supported on OC48/STM16, GE-2, and GE-HDE line modules; Table 2 lists the classifiers supported on all other line modules.