Classifying Interfaces (SRC CLI)

Use the following configuration statements to define interface classification scripts:

shared network device name interface-classifier rule name {
target target ;
script script ;
include include ;
}
shared network device name interface-classifier rule name condition name ...

A classification script can contain either a target and a condition or a script. If you do not define a script, the classifier must have both a target and a condition.

To define interface classification scripts:

  1. From configuration mode, enter the interface classifier configuration for a device.
    user@host# edit shared network device erx-node1 interface-classifier
  2. Create a rule for the subscriber classifier. You can create multiple rules for the classifier.
    [edit shared network device erx-node1 interface-classifier]
    user@host# edit rule rule-3
  3. Configure either a script, a target, or an included script for the rule.
    [edit shared network device erx-node1 interface-classifier rule rule-3]
    user@host# set script script

    OR

    [edit shared network device erx-node1 interface-classifier rule rule-3]
    user@host# set target target

    OR

    [edit shared sae group west-region subscriber-classifier rule rule-2]
    user@host# set include include

    Where include identifies a script that has already been created.

  4. If you configured a target for the rule, you must configure a match condition for the rule. You can create multiple conditions for the rule. See Interface Classification Conditions.
    [edit shared network device erx-node1 interface-classifier rule rule-3]
    user@host# set condition name
  5. (Optional) Change the order of rules.
    [edit shared network device erx-node1 interface-classifier]
    user@host# insert rule rule-5 before rule-4
  6. (Optional) Rename a rule.
    [edit shared network device erx-node1 interface-classifier]
    user@host# rename rule rule-5 to DHCP
  7. (Optional) Verify the classifier rule configuration. 
    [edit shared network device erx-node1 interface-classifier rule rule-3]
user@host# show
target /sample/junose/PPP-special;
condition {
  "pppLoginName=\"*@special.com\"";
}
    

    8. 

  8. (Optional) Verify the interface classifier configuration.

    [edit shared network device erx-node1 interface-classifier]
user@host# show
rule rule-1 {
  script "
# Use the following syntax:
#
# descr-file ::= [script] section*
# section    ::= ('[' type ']' nl conditions) | ('[*]' nl script)
# type       ::= 'a-zA-Z0-9-_'*
# nl         ::= '\\n'
# conditions ::= ((('#'|';') comment) |
#                (['&'|'|'] field-name ( '='|'=='|'!=') match) nl)*
# field-name ::= member of InterfaceObject
# match      ::= UNIX style filename matching
# script     ::= regular python script, defined functions need to be
#                  included in the list \"classify\"
#
# the section-names correspond to a PolicyList object below
# o=Policies, o=umc:
# [name] => DN: \"policyGroupName=name, o=Policies, o=umc\"
#
# Use one of the following \"field names\":
#   pppLoginName      - set to \"user@realm\", if interface is PPP
#   interfaceName     - name of the ERX Interface in CLI syntax
#   virtualRouterName - name of the VR the interface is connected to 
    

    

    ";
}
rule rule-2 {
  script "
# apply different default policies for PPP subscribers in realm \"special.com\"
def log(obj):
    from net.juniper.smgt.sae import Main
    icc = Main.theComponentRegistry.get(\"icc.component\")
    if icc is None:
        Main.theComponentRegistry.put(\"icc.component\", [])
    else:
        icc.append(obj)
classify.append(log)
";
}
rule rule-3 {
  target /sample/junose/PPP-special;
  condition {
    "pppLoginName=\"*@special.com\"";
  }
}
rule rule-4 {
  target /sample/junose/PPP;
  condition {
    "pppLoginName!=\"\"";
  }
}
rule rule-5 {
  target /sample/junose/DHCP;
  condition {
    "interfaceName=\"fastEthernet*\"";
    "interfaceName=\"atm*/*.*\"";
  }
}
    

    9. 




Interface Classification Conditions


Use the fields in this section to define
interface classification conditions.




broadcastAddr



    

  • Interface broadcast address.
    • 



    

  • Value—Valid broadcast address format
    • 



    

  • Example—broadcastAddr.hostAddress=“ 255.255.255.255” 
    • 





ifAlias



    

  • Description of an interface.
    • 



    

  • Value—Interface description that is configured on
the router. For JUNOSe routers, it is the description configured with
the interface description command.
    • 



    

  • Example—ifAlias=“ 1st pppoe int” 
    • 





ifDesc



    

  • Alternate name of the interface that is used by SNMP.
This name is a system-generated name. 
    • 



    

  • Value
      

    • On a JUNOSe router, the format of the description is

      

      ip<slot>/<port>.<subinterface>
      

      
      

      • 

    • On the JUNOS routing platform, ifDesc is the same as interfaceName.
      • 

    

    • 



    

  • Example—ifDesc=“ IP3/1.1” 
    • 





interfaceName



    

  • Name of the interface. 
    • 



    

  • Value
      

    • Name of the interface in your router CLI syntax 
      • 

    • FORWARDING_INTERFACE for routing instance (used by traffic
mirroring) 
      • 

    

    • 



    

  • Example—For JUNOSe routers: interfaceName=“
fastethernet6/0.1” 
    • 



For JUNOS routing platforms: interfaceName=“ fe-0/1/0.0” 


For forwarding interface: interfaceName=“ FORWARDING_INTERFACE” 




ipAddress



    

  • Interface IP address.
    • 



    

  • Value—Valid IPv4 IP address format
    • 



    

  • Example—ipAddress=“ 10.10.30.1” 
    • 





ipMask



    

  • Interface network mask.
    • 



    

  • Value—Valid IPv4 IP network mask format
    • 



    

  • Example—ipMask=“ 255.255.255.255” 
    • 





mtu



    

  • Maximum transfer unit configured on the interface. 
    • 



    

  • Value—32-integer value
    • 



    

  • Example—mtu=“ 1492” 
    • 





nasPortId



    

  • Port identifier of an interface. 
    • 



    

  • Value—Includes interface name and additional layer
2 information
    • 



    

  • Example—nasPortId=“ fastEthernet 3/1”
 (There is a space between fastEthernet and slot number 3/1 in the
nasPortId.)
    • 





pppLoginName



    

  • Login name for PPP subscribers.
    • 



    

  • Value—Login name in the format username@domain 
    • 



    

  • Example—pppLoginName=“ pebbles@virneo.net” 
    • 





radiusClass



    

  • RADIUS class attribute.
    • 



    

  • Value—RADIUS class name
    • 



    

  • Example—radiusClass=“ Premium” 
    • 





serviceBundle



    

  • Content of the vendor-specific RADIUS attribute for the
service bundle.
    • 



    

  • Value—Name of a service bundle
    • 





userIpAddress



    

  • Subscriber IP address (PPP only).
    • 



    

  • Value—valid IPv4 address
    • 



    

  • Example—userIpAddress=“ 192.168.30.15” 
    • 





virtualRouterName



    

  • Name of the virtual router or routing instance.
    • 



    

  • Value—For JUNOSe routers: name of the virtual router
in the format vrname@hostname
    For JUNOS routing platforms: name of the routing
instance
    

    • 



    

  • Example—virtualRouterName=“ default@erx5” 
    • 









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