Classifying Network Traffic
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Classifying Network Traffic

Last Updated: April 11, 2012

Classifying network traffic allows you to organize traffic (that is, packets) into traffic classes or categories on the basis of whether the traffic matches specific criteria. Classifying network traffic is the foundation for enabling many quality of service (QoS) features on your network. This module contains conceptual information and the configuration tasks for classifying network traffic.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Prerequisites for Classifying Network Traffic

To mark network traffic, Cisco Express Forwarding (CEF) must be configured on both the interface receiving the traffic and the interface sending the traffic.

Information About Classifying Network Traffic

Purpose of Classifying Network Traffic

Classifying network traffic allows you to organize traffic (that is, packets) into traffic classes or categories on the basis of whether the traffic matches specific criteria. Classifying network traffic is the foundation for enabling other QoS features such as traffic shaping and traffic policing on your network.

The goal of network traffic classification is to group traffic based on user-defined criteria so that the resulting groups of network traffic can then be subjected to specific QoS treatments. The QoS treatments might include faster forwarding by intermediate routers and switches or reduced probability of the traffic being dropped due to lack of buffering resources.

Identifying and categorizing network traffic into traffic classes (that is, classifying packets) enables distinct handling for different types of traffic, effectively separating network traffic into different categories. This classification can be associated with a variety of match criteria such as the IP Precedence value, differentiated services code point (DSCP) value, class of service (CoS) value, source and destination MAC addresses, input interface, or protocol type. You classify network traffic by using class maps and policy maps with the Modular Quality of Service Command-Line Interface (MQC). For example, you can configure class maps and policy maps to classify network traffic on the basis of the QoS group, Frame Relay DLCI number, Layer 2 packet length, or other criteria that you specify.

Benefits of Classifying Network Traffic

Classifying network traffic allows you to see what kinds of traffic you have, organize the various kinds of network traffic into traffic classes, and treat some types of traffic differently than others. Identifying and organizing network traffic is the foundation for applying the appropriate QoS feature to that traffic, enabling you to allocate network resources to deliver optimal performance for different types of traffic. For example, high-priority network traffic or traffic matching specific criteria can be singled out for special handling, and thus, help to achieve peak application performance.

MQC and Network Traffic Classification

To configure network traffic classification, you use the Modular Quality of Service Command-Line Interface (MQC).

The MQC is a CLI structure that allows you to complete the following tasks:

  • Specify the matching criteria used to define a traffic class.
  • Create a traffic policy (policy map). The traffic policy defines the QoS policy actions to be taken for each traffic class.
  • Apply the policy actions specified in the policy map to an interface, subinterface, or ATM permanent virtual circuit (PVC) by using the service-policy command.

Network Traffic Classification match Commands and Match Criteria

Network traffic classification allows you to group or categorize traffic on the basis of whether the traffic meets one or more specific criteria. For example, network traffic with a specific IP precedence can be placed into one traffic class, while traffic with a specific DSCP value can be placed into another traffic class. The network traffic within that traffic class can be given the appropriate QoS treatment, which you can configure in a policy map later.

You specify the criteria used to classify traffic with a match command. The table below lists the available match commands and the corresponding match criterion.

Table 1match Commands and Corresponding Match Criterion

match Commands1

Match Criterion

match access group

Access control list (ACL) number

match any

Any match criteria

match class-map

Traffic class name

match cos

Layer 2 class of service (CoS) value

match destination-address mac

MAC address

match discard-class

Discard class value

match dscp

DSCP value

match field

Fields defined in the protocol header description files (PHDFs)

match fr-de

Frame Relay discard eligibility (DE) bit setting

match fr-dlci

Frame Relay data-link connection identifier (DLCI) number

match input-interface

Input interface name

match ip rtp

Real-Time Transport Protocol (RTP) port

match mpls experimental

Multiprotocol Label Switching (MPLS) experimental (EXP) value

match mpls experimental topmost

MPLS EXP value in the topmost label

match not

Single match criterion value to use as an unsuccessful match criterion

match packet length (class-map)

Layer 3 packet length in the IP header

match port-type

Port type

match precedence

IP precedence values

match protocol

Protocol type

match protocol (NBAR)

Protocol type known to network-based application recognition (NBAR)

match protocol citrix

Citrix protocol

match protocol fasttrack

FastTrack peer-to-peer traffic

match protocol gnutella

Gnutella peer-to-peer traffic

match protocol http

Hypertext Transfer Protocol

match protocol rtp

RTP traffic

match qos-group

QoS group value

match source-address mac

Source Media Access Control (MAC) address

match start

Datagram header (Layer 2) or the network header (Layer 3)

match tag (class-map)

Tag type of class map

match vlan (QoS)

Layer 2 virtual local-area network (VLAN) identification number

1 Cisco IOS match commands can vary by release and platform. For instance, as of Cisco IOS Release 12.2(31)SB2, the match vlan (QoS) command is supported on Cisco 10000 series routers only. For more information, see the command documentation for the Cisco IOS release and platform that you are using.

Traffic Classification Compared with Traffic Marking

Traffic classification and traffic marking are closely related and can be used together. Traffic marking can be viewed as an additional action, specified in a policy map, to be taken on a traffic class.

Traffic classification allows you to organize into traffic classes on the basis of whether the traffic matches specific criteria. For example, all traffic with a CoS value of 2 is grouped into one class, and traffic with DSCP value of 3 is grouped into another class. The match criterion is user-defined.

After the traffic is organized into traffic classes, traffic marking allows you to mark (that is, set or change) an attribute for the traffic belonging to that specific class. For instance, you may want to change the CoS value from 2 to 1, or you may want to change the DSCP value from 3 to 2.

The match criteria used by traffic classification are specified by configuring a match command in a class map. The marking action taken by traffic marking is specified by configuring a set command in a policy map. These class maps and policy maps are configured using the MQC.

The table below compares the features of traffic classification and traffic marking.

Table 2Traffic Classification Compared with Traffic Marking

Traffic Classification

Traffic Marking

Goal

Groups network traffic into specific traffic classes on the basis of whether the traffic matches the user-defined criteria.

After the network traffic is grouped into traffic classes, modifies the attributes for the traffic in a particular traffic class.

Configuration Mechanism

Uses class maps and policy maps in the MQC.

Uses class maps and policy maps in the MQC.

CLI

In a class map, uses match commands (for example, match cos) to define the traffic matching criteria.

Uses the traffic classes and matching criteria specified by traffic classification.

In addition, uses set commands (for example, set cos) in a policy map to modify the attributes for the network traffic.

If a table map was created, uses the table keyword and table-map-name argument with the set commands (for example, set cos precedence table table-map-name) in the policy map to establish the to-from relationship for mapping attributes.

How to Classify Network Traffic

Creating a Class Map for Classifying Network Traffic


Note
In the following task, the match fr-dlcicommand is shown in Step 4. The match fr-dlcicommand matches traffic on the basis of the Frame Relay DLCI number. The match fr-dlcicommand is just an example of one of the match commands that can be used. For a list of other match commands, see Creating a Class Map for Classifying Network Traffic.
SUMMARY STEPS

1.    enable

2.    configure terminal

3.    class-map class-map-name [match-all| match-any]

4.    match fr-dlci dlci-number

5.    end


DETAILED STEPS
 Command or ActionPurpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
class-map class-map-name [match-all| match-any]


Example:

Router(config)# class-map class1

 

Creates a class map to be used for matching traffic to a specified class, and enters class-map configuration mode.

  • Enter the class map name.
 
Step 4
match fr-dlci dlci-number


Example:

Router(config-cmap)# match fr-dlci 500

 

(Optional) Specifies the match criteria in a class map.

Note    The match fr-dlci command classifies traffic on the basis of the Frame Relay DLCI number. The match fr-dlcicommand is just an example of one of the match commands that can be used. For a list of other match commands, see Creating a Class Map for Classifying Network Traffic.
 
Step 5
end


Example:

Router(config-cmap)# end

 

(Optional) Returns to privileged EXEC mode.

 

Creating a Policy Map for Applying a QoS Feature to Network Traffic


Note
In the following task, the bandwidth command is shown at Step 5 . The bandwidth command configures the QoS feature class-based weighted fair queuing (CBWFQ). CBWFQ is just an example of a QoS feature that can be configured. Use the appropriate command for the QoS feature you want to use.

Note
Configuring bandwidth on policies that have the class-default class is supported on physical interfaces such as Gigabit Ethernet (GigE), Serial, Mobile Location Protocol (MLP), and Multilink Frame-Relay (MFR), but it is not supported on logical interfaces such as Virtual Access Interface (VAI), Subinterface, and Frame-Relay on Virtual Circuits (FR-VC).
SUMMARY STEPS

1.    enable

2.    configure terminal

3.    policy-map policy-map-name

4.    class {class-name | class-default}

5.    bandwidth {bandwidth-kbps| remaining percent percentage| percent percentage}

6.    end

7.    show policy-map

8.   

9.    show policy-map policy-map class class-name

10.    Router# show policy-map

11.   

12.    Router# show policy-map policy1 class class1

13.    exit


DETAILED STEPS
 Command or ActionPurpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
policy-map policy-map-name


Example:

Router(config)# policy-map policy1

 

Specifies the name of the policy map to be created and enters policy-map configuration mode.

  • Enter the policy map name.
 
Step 4
class {class-name | class-default}


Example:

Router(config-pmap)# class class1

 

Specifies the name of the class and enters policy-map class configuration mode. This class is associated with the class map created earlier.

  • Enter the name of the class or enter the class-defaultkeyword.
 
Step 5
bandwidth {bandwidth-kbps| remaining percent percentage| percent percentage}


Example:

Router(config-pmap-c)# bandwidth percent 50

 

(Optional) Specifies or modifies the bandwidth allocated for a class belonging to a policy map.

  • Enter the amount of bandwidth as a number of kbps, a relative percentage of bandwidth, or an absolute amount of bandwidth.
Note    The bandwidth command configures the QoS feature class-based weighted fair queuing (CBWFQ). CBWFQ is just an example of a QoS feature that can be configured. Use the appropriate command for the QoS feature that you want to use.
 
Step 6
end


Example:

Router(config-pmap-c)# end

 

Returns to privileged EXEC mode.

 
Step 7
show policy-map
 

(Optional) Displays all configured policy maps.

 
Step 8

 

or

 
Step 9
show policy-map policy-map class class-name


Example:

 

(Optional) Displays the configuration for the specified class of the specified policy map.

  • Enter the policy map name and the class name.
 
Step 10
Router# show policy-map  

 
Step 11

 

 
Step 12
Router# show policy-map policy1 class class1  

 
Step 13
exit


Example:

Router# exit

 

(Optional) Exits privileged EXEC mode.

 

What to Do Next

Create and configure as many policy maps as you need for your network. To create and configure additional policy maps, repeat the steps in the "Creating a Policy Map for Applying a QoS Feature to Network Traffic" section. Then attach the policy maps to the appropriate interface, following the instructions in the "Attaching the Policy Map to an Interface" section.

Attaching the Policy Map to an Interface


Note
Depending on the needs of your network, policy maps can be attached to an interface, a subinterface, or an ATM PVC.
SUMMARY STEPS

1.    enable

2.    configure terminal

3.    interface type number [name-tag]

4.    pvc [name] vpi / vci [ilmi|qsaal|smds| l2transport]

5.    exit

6.    service-policy {input | output} policy-map-name

7.    end

8.    show policy-map interface type number

9.    exit


DETAILED STEPS
 Command or ActionPurpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
interface type number [name-tag]


Example:

Router(config)# interface serial4/0

 

Configures an interface type and enters interface configuration mode.

  • Enter the interface type and number.
 
Step 4
pvc [name] vpi / vci [ilmi|qsaal|smds| l2transport]


Example:

Router(config-if)# pvc cisco 0/16

 

(Optional) Creates or assigns a name to an ATM PVC, specifies the encapsulation type on an ATM PVC, and enters ATM virtual circuit configuration mode.

  • Enter the PVC name, the ATM network virtual path identifier, and the network virtual channel identifier.
Note    This step is required only if you are attaching the policy map to an ATM PVC. If you are not attaching the policy map to an ATM PVC, advance to Step 6 .
 
Step 5
exit


Example:

Router(config-atm-vc)# exit

 

(Optional) Returns to interface configuration mode.

Note    This step is required only if you are attaching the policy map to an ATM PVC and you completed Step 4 . If you are not attaching the policy map to an ATM PVC, advance to Step 6 .
 
Step 6
service-policy {input | output} policy-map-name


Example:

Router(config-if)# service-policy input policy1

 

Attaches a policy map to an input or output interface.

  • Enter the policy map name.
Note    Policy maps can be configured on ingress or egress routers. They can also be attached in the input or output direction of an interface. The direction (input or output) and the router (ingress or egress) to which the policy map should be attached varies according your network configuration. When using the service-policy command to attach the policy map to an interface, be sure to choose the router and the interface direction that are appropriate for your network configuration.
 
Step 7
end


Example:

Router(config-if)# end

 

Returns to privileged EXEC mode.

 
Step 8
show policy-map interface type number


Example:

Router# show policy-map interface serial4/0

 

(Optional) Displays the traffic statistics of all traffic classes that are configured for all service policies either on the specified interface or subinterface or on a specific PVC on the interface.

  • Enter the type and number.
 
Step 9
exit


Example:

Router# exit

 

(Optional) Exits privileged EXEC mode.

 

Configuring QoS When Using IPsec VPNs


Note
This task is required only if you are using IPsec Virtual Private Networks (VPNs). Otherwise, this task is not necessary. For information about IPsec VPNs, see the "Configuring Security for VPNs with IPsec" module.

Note

This task uses the qos pre-classify command to enable QoS preclassification for the packet. QoS preclassification is not supported for all fragmented packets. If a packet is fragmented, each fragment might receive different preclassifications.

>
SUMMARY STEPS

1.    enable

2.    configure terminal

3.    crypto map map-name seq-num

4.    exit

5.    interface type number [name-tag]

6.    qos pre-classify

7.    end


DETAILED STEPS
 Command or ActionPurpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
crypto map map-name seq-num


Example:

Router(config)# crypto map mymap 10

 

Enters crypto map configuration mode and creates or modifies a crypto map entry.

  • Enter the crypto map name and sequence number.
 
Step 4
exit


Example:

Router(config-crypto-map)# exit

 

Returns to global configuration mode.

 
Step 5
interface type number [name-tag]


Example:

Router(config)# interface serial4/0

 

Configures an interface type and enters interface configuration mode.

  • Enter the interface type and number.
 
Step 6
qos pre-classify


Example:

Router(config-if)# qos pre-classify

 

Enables QoS preclassification.

 
Step 7
end


Example:

Router(config-if)# end

 

(Optional) Returns to privileged EXEC mode.

 

Configuration Examples for Classifying Network Traffic

Example Creating a Class Map for Classifying Network Traffic

The following is an example of creating a class map to be used for traffic classification. In this example, a traffic class called class1 has been created. Traffic with a Frame Relay DLCI value of 500 will be put in this traffic class.

Router> enable
Router# configure terminal
Router(config)# class-map class1
Router(config-cmap)# match fr-dlci 500
Router(config-cmap)# end 


      

Note

This example uses the match fr-dlcicommand. The match fr-dlcicommand is just an example of one of the match commands that can be used. For a list of other match commands, see Example Creating a Class Map for Classifying Network Traffic.


    


  










Example  Creating a Policy Map for Applying a QoS Feature to Network Traffic



    

      

The following is an example of creating a policy map to be used for traffic classification. In this example, a policy map called policy1 has been created, and the bandwidth command has been configured for class1. The bandwidth command configures the QoS feature CBWFQ. 


      
Router> enable
Router# configure terminal
Router(config)# policy-map policy1
Router(config-pmap)# class class1
Router(config-pmap-c)# bandwidth percent 50 
Router(config-pmap-c)# end
Router# 
show policy-map policy1 class class1
Router# exit



      

Note

This example uses the bandwidth command. The bandwidth command configures the QoS feature class-based weighted fair queuing (CBWFQ). CBWFQ is just an example of a QoS feature that can be configured. Use the appropriate command for the QoS feature that you want to use.


    


  










Example  Attaching the Policy Map to an Interface



    

      

The following is an example of attaching the policy map to an interface. In this example, the policy map called policy1 has been attached in the input direction of serial interface 4/0.


      
Router> enable
Router# configure terminal
Router(config)# interface serial4/0
Router(config-if)# service-policy input policy1 
Router(config-if)# end
Router# 
show policy-map interface serial4/0
Router# exit



    


  










Example  Configuring QoS When Using IPsec VPNs



    

      

The following is an example of configuring QoS when using IPsec VPNs. In this example, the crypto map command specifies the IPsec crypto map mymap 10, to which the qos pre-classify command is applied.


      
Router> enable
Router# configure terminal
Router(config)# crypto map mymap 10 
Router(config-crypto-map)# exit
Router(config)# interface serial4/0
Router(config-if)# qos pre-classify
Router(config-if)# end



    


  












Additional References


 
	 
 
	 

 
	 
Related Documents
 
		 
		

 
			  
			  
			  
				
 
				   
					 
 Related Topic 
					 

 
				  		
 
				   
					 
 Document Title 
					 

 
				  		
 
				

 
			 
 
			  
				
 
				   
					 
 Cisco IOS commands 
					 

 
				  		
 
				   
					 
 
						Cisco IOS Master Commands List, All Releases 
					 

 
				  		
 
				

 
				
 
				   
					 
 QoS commands: complete command syntax, command modes, command history, defaults, usage guidelines, and examples 
					 

 
				  		
 
				   
					 
 
						Cisco IOS Quality of Service Solutions Command Reference 
						 
					 

 
				  		
 
				

 
				
 
				   
					 
 MQC 
					 

 
				  		
 
				   
					 
 "Applying QoS Features Using the MQC" module 
					 

 
				  		
 
				

 
				
 
				   
					 
 Marking network traffic 
					 

 
				  		
 
				   
					 
 "Marking Network Traffic" module 
					 

 
				  		
 
				

 
				
 
				   
					 
 IPsec and VPNs 
					 

 
				  		
 
				   
					 
 "Configuring Security for VPNs with IPsec" module 
					 

 
				  		
 
				

 
				
 
				   
					 
 NBAR 
					 

 
				  		
 
				   
					 
 "Classifying Network Traffic Using NBAR" module 
					 

 
				  		
 
				

 
				
 
				   
					 
 CAR 
					 

 
				  		
 
				   
					 
 "Configuring Committed Access Rate" module 
					 

 
				  		
 
				

 
				
 
				   
					 
IPv6 QoS 
					 

 
				  		
 
				   
					 
"IPv6 Quality of Service" module 
					 

 
				  		
 
				

 
				
 
				   
					 
IPv6 MQC Packet Classification 
					 

 
				  		
 
				   
					 
"IPv6 QoS: MQC Packet Classification" module 
					 

 
				  		
 
				

 
			 
 
		  



 
	 

 
	 
Standards
 
		 
		

 
			  
			  
			  
				
 
				   
					 
 Standard 
					 

 
				  		
 
				   
					 
 Title 
					 

 
				  		
 
				

 
			 
 
			  
				
 
				   
					 
 No new or modified standards are supported, and support for existing standards has not been modified. 
					 

 
				  		
 
				   
					 
 -- 
					 

 
				  		
 
				

 
			 
 
		  



 
	 

 
	 
MIBs
 
		 
		

 
			  
			  
			  
				
 
				   
					 
 MIB 
					 

 
				  		
 
				   
					 
 MIBs Link 
					 

 
				  		
 
				

 
			 
 
			  
				
 
				   
					 
 No new or modified MIBs are supported, and support for existing MIBs has not been modified. 
					 

 
				  		
 
				   
					 
 To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: 
					 

 
					 
 
						http://www.cisco.com/go/mibs 
					 

 
				  		
 
				

 
			 
 
		  



 
	 

 
	 
RFCs
 
		 
		

 
			  
			  
			  
				
 
				   
					 
 RFC 
					 

 
				  		
 
				   
					 
 Title 
					 

 
				  		
 
				

 
			 
 
			  
				
 
				   
					 
 No new or modified RFCs are supported, and support for existing RFCs has not been modified. 
					 

 
				  		
 
				   
					 
 -- 
					 

 
				  		
 
				

 
			 
 
		  



 
	 

 
	 
Technical Assistance
 
		 
		

 
			  
			  
			  
				
 
				   
					 
 Description 
					 

 
				  		
 
				   
					 
 Link 
					 

 
				  		
 
				

 
			 
 
			  
				
 
				   
					 
 The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. 
					 

 
				  		
 
				   
					 
 
						http://www.cisco.com/cisco/web/support/index.html 
					 

 
				  		
 
				

 
			 
 
		  



 
	 

 
  










Feature Information for Classifying Network Traffic


 
	 
 
		
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature. 
		

 
		
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to 
		  www.cisco.com/go/cfn. An account on Cisco.com is not required. 
		

 
	 


	 
 
		

Table 3Feature Information for Classifying Network Traffic 
 
		   
		   
		   
		   
			 
 
				 
				  
 Feature Name
				  

 
						
 
				 
				  
 Releases
				  

 
						
 
				 
				  
 Feature Information
				  

 
						
 
			 

 
		  
 
		   
			 
 
				 
				  
 Packet Classification Based on Layer 3 Packet Length 
				  

 
						
 
				 
				  
 12.2(13)T
				  

 
						
 
				 
				  
 This feature provides the added capability of matching and classifying network traffic on the basis of the Layer3 length in the IP packet header. The Layer 3 length is the IP datagram plus the IP header. This new match criteria is in addition to the other match criteria, such as the IP precedence, differentiated services code point (DSCP) value, class of service (CoS), currently available. 
				  

 
						
 
			 

 
			 
 
				 
				  
 Packet Classification Using Frame Relay DLCI Number 
				  

 
						
 
				 
				  
 12.2(13)T
				  

 
						
 
				 
				  
 The Packet Classification Using the Frame Relay DLCI Number feature allows customers to match and classify traffic based on the Frame Relay data-link connection identifier (DLCI) number associated with a packet. This new match criteria is in addition to the other match criteria, such as the IP Precedence, differentiated services code point (DSCP) value, class of service (CoS), currently available. 
				  

 
						
 
			 

 
			 
 
				 
				  
 Quality of Service for Virtual Private Networks
				  

 
						
 
				 
				  
 12.2(2)T
				  

 
						
 
				 
				  
 The QoS for VPNs feature provides a solution for making Cisco IOS QoS services operate in conjunction with tunneling and encryption on an interface. Cisco IOS software can classify packets and apply the appropriate QoS service before the data is encrypted and tunneled. The QoS for VPN feature allows users to look inside the packet so that packet classification can be done based on original port numbers and based on source and destination IP addresses. This allows the service provider to treat mission critical or multi-service traffic with higher priority across their network. 
				  

 
						
 
			 

 
			 
 
				 
				  
 QoS: Match VLAN
				  

 
				  
Note    As of Cisco IOS Release 12.2(31)SB2, the QoS: Match VLAN feature is supported on Cisco 10000 series routers only.
				  

 
						
 
				 
				  
 12.2(31)SB2
				  

 
						
 
				 
				  
 The QoS: Match VLAN feature allows you to classify network traffic on the basis of the Layer 2 virtual local-area network (VLAN) identification number.
				  

 
				  
 The following commands were introduced or modified by this feature: 
					 match 
						vlan(QoS), 
						show 
						policy-map 
						interface.
				  

 
						
 
			 

 
			 
 
				 
				  
 Hierarchical Traffic Shaping
				  

 
				  
 Packet Classification Based on Layer3 Packet-Length
				  

 
				  
 QoS: Match VLAN
				  

 
						
 
				 
				  
 15.0(1)S
				  

 
						
 
				 
				  
 The Hierarchical Traffic Shaping, Packet Classification Based on Layer3 Packet-Length, QoS: Match VLAN features were integrated into the Cisco IOS Release 15.0(1)S release.
				  

 
						
 
			 

 
		  
 
		



 
	 

 
  










 


 
	 

		
Cisco and the Cisco Logo are trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks can be found at 
		  www.cisco.com/go/trademarks. Third party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1005R) 
		

 
		
Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental. 
		


	 

 
  















































1  Cisco IOS match commands can vary by release and platform. For instance, as of Cisco IOS Release 12.2(31)SB2, the match vlan (QoS) command is supported on Cisco 10000 series routers only. For more information, see the command documentation for the Cisco IOS release and platform that you are using.
© 2012 Cisco Systems, Inc. All rights reserved.