CBQoS

下面的步骤中，列出来match命令。特定的match命 令变量依赖于平台和Cisco IOS的版本。对于match命令的有效性，参考你所使用的Cisco IOS命令指南。

Step 1

Router> enable

Enables privileged EXEC mode.

Step 2

Router # configure terminal

Enters global configuration mode.

Step 3 

Router(config)# class-map [match-all | match-any] class-name

Creates a class to be used with a class map, and enters class-map configuration mode. The class map is used for matching packets to the specified class.

Note : The match-all keyword specifies that all match criteria must be met. The match-any keyword specifies that one of the match criterion must be met.

Use one or more of the following match commands, as applicable.

Step 4

Router(config-cmap)# match access-group

{access-group | name access-group-name

(Optional) Configures the match criteria for a class map on the basis of the specified access control list (ACL).

Note: Access lists configured with the optional log keyword of the access-list command are not supported when configuring a traffic class.

Step 5 

Router(config-cmap)# match any

(Optional) Configures the match criteria for a class map to be successful match criteria for all packets.

Step 6 

Router config-cmap)# match class-map class-name

(Optional) Specifies the name of a traffic class to be used as a matching criterion (for nesting traffic class [nested class maps] within one another).

Step 7

Router(config-cmap)# match cos cos-number

(Optional) Matches a packet based on a Layer 2 class of service (CoS) marking.

Step 8 

Router(config-cmap)# match destination-address mac address

(Optional) Uses the destination Media Access Control (MAC) address as a match criterion.

Step 9 

Router(config-cmap)# match discard-class class-number

(Optional) Matches packets of a certain discard class.

Step 10 

Router(config-cmap)# match [ip] dscp

dscp-value [dscp-value dscp-value dscp-value

dscp-value dscp-value dscp-value dscp-value]

(Optional) Identifies a specific IP differentiated service code point (DSCP) value as a match criterion. Up to eight DSCP values can be included in one match statement.

Step 11 

Router(config-cmap)# match field protocol

protocol-field {eq [mask] | neq [mask] |

gt | lt | range range | regex string}

value [next next-protocol]

(Optional) Configures the match criteria for a class map on the basis of the fields defined in the protocol header description files (PHDFs).

Step 12

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

(Optional) Specifies the Frame Relay data-link connection identifier (DLCI) number as a match criterion in a class map.

Step 13 

Router(config-cmap)# match input-interface interface-name

(Optional) Configures a class map to use the specified input interface as a match criterion.

Step 14 

Router(config-cmap)# match ip rtp starting-port-number port-range

(Optional) Configures a class map to use the Real-Time Protocol (RTP) protocol port as the match criterion.

Step 15

Router(config-cmap)# match mpls experimental mpls-values

(Optional) Configure a class map to use the specified value of the Multiprotocol Label Switching (MPLS) experimental (EXP) field as a match criterion.

Step 16

Router(config-cmap)# match mpls experimental topmost values

(Optional) Matches the MPLS EXP value in the topmost label.

Step 17

Router(config-cmap)# match not match-criteria

(Optional) Specifies the single match criterion value to use as an unsuccessful match criterion.

Step 18

Router(config-cmap)# match packet length

{max maximum-length-value

[min minimum-length-value]

| min minimum-length-value

[max maximum-length-value]}

Optional) Specifies the Layer 3 packet length in the IP header as a match criterion in a class map.

Step 19

Router(config-cmap)# match port-type {routed | switched}

{routed | switched} (Optional) Matches traffic on the basis of the port type for a class map.

Step 20

Router(config-cmap)# match [ip] precedence precedence-value [precedence-value precedence-value precedence-value]

(Optional) Identifies IP precedence values as match criteria.

Step 21 

Router(config-cmap)# match protocol protocol-name

(Optional) Configures the match criteria for a class map on the basis of the specified protocol.

Note: There is a separate match protocol (NBAR) command used to configure network-based application recognition (NBAR) to match traffic by a protocol type known to NBAR.

Step 22 

Router(config-cmap)# match protocol citrix [app application-name-string] [ica-tag ica-tag-value]

(Optional) Configures NBAR to match Citrix traffic

Step 23 

Router(config-cmap)# match protocol fasttrack file-transfer "regular-expression"

(Optional) Configures NBAR to match FastTrack peer-to-peer traffic.

Step 24

Router(config-cmap)# match protocol gnutella file-transfer "regular-expression"

(Optional) Configures NBAR to match Gnutella peer-to-peer traffic.

Step 25 

Router(config-cmap)# match protocol http [url url-string | host hostname-string | mime MIME-type | c-header-field c-header-field-string | s-header-field s-header-field-string]

(Optional) Configures NBAR to match Hypertext Transfer Protocol (HTTP) traffic by URL, host, Multipurpose Internet Mail Extension (MIME) type, or fields in HTTP packet headers.

Step 26

Router(config-cmap)# match protocol rtp [audio | video | payload-type payload-string]

(Optional) Configures NBAR to match Real-Time Transfer Protocol (RTP) traffic.

Step 27

Router(config-cmap)# match qos-groupqos-group-value

qos-group-value (Optional) Identifies a specific QoS group value as a match criterion.

Step 28 

Router(config-cmap)# match source-address mac address-destination

(Optional) Uses the source MAC address as a match criterion.

Step 29 

Router(config-cmap)# match start {l2-start | l3-start} offset number size number {eq | neq | gt | lt | range range | regex string} {value [value2] | [string]}

(Optional) Configures the match criteria for a class map on the basis of the datagram header (Layer 2) or the network header (Layer 3).

Step 30 

Router(config-cmap)# match tag {tag-name}

(Optional) Specifies tag type as a match criterion.

Step 31

Route(config-cmap)# exit

(Optional) Exits class-map configuration mode.

Step 1

Router> enable

Enables privileged EXEC mode.

Step 2

Router# configure terminal

Enters global configuration mode.

Step 3 

Router(config)#  policy-map policy-name

Creates or specifies the name of the traffic policy and enters policy-map configuration mode.

Step 4

Router(config-pmap)#  class {class-name |class-default}

Specifies the name of a traffic class (previously created in the "Creating a Traffic Class" section) and enters policy-map class configuration mode.

Use one or more of the following commands to enable the specific QoS feature you want to use.

Step 5 

Router(config-pmap-c)# bandwidth {bandwidth-kbps | percent percent }

(Optional) Specifies a minimum bandwidth guarantee to a traffic class in periods of congestion. A minimum bandwidth guarantee can be specified in kbps or by a percentage of the overall available bandwidth.

Step 6 

Router(config-pmap-c)# fair-queue number-of-queues

(Optional) Specifies the number of queues to be reserved for a traffic class.

Step 7

Router (config-pmap-c)# police bps [burst-normal][burst-max] conform-action action exceed-action action [violate-action action]

(Optional) Configures traffic policing.

Step 8 

Router(config-pmap-c)# priority {bandwidth-kbps | percent percentage} [burst]

(Optional) Gives priority to a class of traffic belonging to a policy map.

Step 9 

Router(config-pmap-c)# queue-limit number-of-packets

(Optional) Specifies or modifies the maximum number of packets the queue can hold for a class configured in a policy map.

Step 10 

Router(config-pmap-c)# random-detect [dscp-based | prec-based]

(Optional) Enables Weighted Random Early Detection (WRED) or distributed WRED (DWRED).

Step 11 

Router(config-pmap-c)# set atm-clp

(Optional) Sets the cell loss priority (CLP) bit when a policy map is configured.

Step 12

Router(config-pmap-c)# set cos {cos-value | from-field [table table-map-name]}

(Optional) Sets the Layer 2 class of service (CoS) value of an outgoing packet.

Step 13 

Router(config-pmap-c)# set discard-class value

(Optional) Marks a packet with a discard-class value.

Step 14 

Router(config-pmap-c)# set [ip] dscp {dscp-value | from-field [table table-map-name]}

(Optional) Marks a packet by setting the differentiated services code point (DSCP) value in the type of service (ToS) byte.

Step 15

Router(config-pmap-c)# set fr-de

(Optional) Changes the discard eligible (DE) bit setting in the address field of a Frame Relay frame to 1 for all traffic leaving an interface.

Step 16

Router(config-pmap-c)# set precedence {precedence-value | from-field [table table-map-name]}

(Optional) Sets the precedence value in the packet header.

Step 17

Route(config-pmap-c)# set mpls experimental value

(Optional) Designates the value to which the MPLS bits are set if the packets match the specified policy map.

Step 18

Router (config-pmap-c)# set qos-group {group-id | from-field [table table-map-name]}

(Optional) Sets a QoS group identifier (ID) that can be used later to classify packets.

Step 19

Router(config-pmap-c)# service-policy policy-map-name

(Optional) Specifies the name of a traffic policy used as a matching criterion (for nesting traffic policies [hierarchical traffic policies] within one another).

Step 20

Router(config-pmap-c)# shape {average | peak } mean-rate [burst-size [excess-burst-size ]]

(Optional) Shapes traffic to the indicated bit rate according to the algorithm specified.

Step 21 

Router(config-pmap-c)# exit

(Optional) Exits policy-map class configuration mode.

基于您是使用的平台和Cisco IOS版本，流量策略可以添加到一个ATM permanent virtual circuit (PVC)子接口，Relay data-link connection identifier (DLCI)，或者另外的接口类型。

Step 1

Router> enable

Enables privileged EXEC mode.

Step 2

Router# configure terminal

Enters global configuration mode

Step 3 

Router(config)# interface serial0

Configures an interface type and enters interface configuration mode.

Step 4

Router(config-if)#  service-policy output [type access-control] {input | output} policy-map-name

Attaches a policy map to an interface.

Step 5

Router (config-if)# exit

(Optional) Exits interface configuration mode.

如果接口被关联到其他接口的话，隧道接口和物理接口不支持多流量策略。例如，如果一个流量策略被添加到一个隧道接口，另一 个流量策略被添加到一个物理接口，这个物理接口和隧道接口相关联，只有隧道接口上的流量策略有效工作。

Step 1

Router> enable

Enables privileged EXEC mode.

Step 2

Router# show class-map [type {stack | access-control}] [class-map-name]

(Optional) Displays all class maps and their matching criteria.

Step 3 

Router# show policy-map policy-map class class-name

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

Step 4

Router# show policy-map policy-map

(Optional) Displays the configuration of all classes for a specified policy map or all classes for all existing policy maps.

Step 5

Router# show policy-map interface [type access-control] type number [vc [vpi/] vci] [dlci dlci] [input | output]

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

Router# exit

(Optional) Exits privileged EXEC mode.