JUNOSe 9.1.x Policy Management Configuration Guide > Policy Resources > Policy Resources Overview

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 13 lists the classifiers supported on OC48/STM16, GE-2, and GE-HDE line modules; Table 14 lists the classifiers supported on all other line modules.

 Table 13:  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 14:  Classifier Support (All Line Modules Except OC48/STM16, GE-2, and GE-HDE) 

 Interface Type
 Hardware Classifier
 Software Classifier

 All interface types

 –


  
 Color
  
 Traffic class
  
 User packet class



 Frame Relay

 Not supported


  
 DE bit



 GRE tunnels

 Not supported


  
 ToS 



 IP


  
 Destination address 
  
 Destination port
  
 ICMP type and code
  
 IGMP type
  
 Protocol
  
 Source address
  
 Source port



  
 Destination route class
  
 IP flags
  
 IP fragmentation
  
 Local
  
 Source route class
  
 TCP flags
  
 ToS



 IPv6


  
 Destination address
  
 Destination port
  
 ICMPv6 type and code 
  
 Protocol
  
 Source address
  
 Source port



  
 Destination route class
  
 Local 
  
 Source route class
  
 TC field
  
 TCP flags



 MPLS

 Not supported


  
 EXP



 VLAN

 Not supported


  
 User priority