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 17 lists the classifiers supported on OC48/STM16,
GE-2, and GE-HDE line modules; Table 18 lists
the classifiers supported on all other line modules.
Table 17: Classifier
Support (OC48/STM16, GE-2, and GE-HDE Line Modules)
Interface Type
Hardware Classifier
Software Classifier
All interface types (except IP and IPv6)
–
Color
Traffic class
User packet class
Frame Relay
Not supported
DE bit
GRE tunnels
Not supported
ToS
IP
Color
Destination address
Destination port
Destination route class
ICMP type and code
IGMP type
IP flags
IP fragmentation
Local
Protocol
Source address
Source port
Source route class
TCP flags
ToS
Traffic class
User packet class
Not supported
IPv6
Color
Destination address
Destination port
Destination route class
ICMPv6 type and code
Local
Protocol
Source address
Source port
Source route class
TC flags
TCP flags
Traffic class
User packet class
Not supported
MPLS
Not supported
EXP
VLAN
Not supported
User priority
Table 18: Classifier
Support (All Line Modules Except OC48/STM16, GE-2, and GE-HDE)
