Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    Classifier Control Lists Overview

    Classifier control lists (CLACLs) specify the criteria by which the router defines a packet flow. Table 1 lists the criteria that you can use to create CLACLs for different types of traffic flows.

    Table 1: CLACL Criteria

    Type of CLACL

    Criteria

    ATM

    • CLP
    • Color
    • Traffic class
    • User packet class

    Frame Relay

    • Color
    • Mark discard eligibility (DE) bit
    • Traffic class
    • User packet class

    GRE

    • Color
    • Traffic class
    • Type-of-service (ToS) byte
    • User packet class

    IP

    • Color
    • Destination IP address
    • Destination port
    • Destination route class
    • Internet Control Message Protocol (ICMP)
    • Internet Gateway Management Protocol (IGMP)
    • IP flags
    • IP fragmentation offset
    • Locally destined traffic
    • Protocol
    • Source IP address
    • Source port
    • Source route class
    • Transmission Control Protocol (TCP)
    • Traffic class
    • Type-of-service (ToS) byte
    • User Datagram Protocol (UDP)
    • User packet class

    IPv6

    • Color
    • Destination IPv6 address
    • Destination port
    • Destination route class
    • Internet Control Message Protocol version 6 (ICMPv6)
    • IPv6 traffic class
    • Locally destined traffic
    • Multicast Listener Discovery (MLD)
    • Next header
    • Source IPv6 address
    • Source port
    • Source route class
    • Traffic class
    • Transmission Control Protocol (TCP)
    • User Datagram Protocol (UDP)
    • User packet class

    L2TP

    • Color
    • Traffic class
    • User packet class

    MPLS

    • Color
    • Mark experimental (EXP) bit
    • Traffic class
    • User packet class

    VLAN

    • Color
    • Traffic class
    • User packet class
    • User priority

    You configure CLACLs with a name and then values to match in the IP datagram header. A CLACL does not include an action: actions take place when a match is included in a policy list.

    Note: Do not use the asterisk (*) for the name of a classifier list. The asterisk is used as a wildcard for the classifier-group command.

    If you do not specify one of the frame-relay, gre-tunnel, ip, ipv6, l2tp, mpls, or vlan keywords, the router creates an IP classifier list. This version of the command has been deprecated and may be removed in a future release.

    Published: 2014-08-14