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Quality of Service Commands
4-257
4
Quality of Service Commands
The commands described in this section are used to configure Differentiated
Services (DiffServ) classification criteria and service policies. You can classify traffic
based on access lists, IP Precedence or DSCP values, or VLANs. Using access lists
allows you select traffic based on Layer 2, Layer 3, or Layer 4 information contained
in each packet
Note:
Due to a chip limitation, IP source guard and Quality of Service (for IP-related
QoS) cannot be enabled at the same time.
To create a service policy for a specific category of ingress traffic, follow these steps:
1.
Use the
class-map
command to designate a class name for a specific category
of traffic, and enter the Class Map configuration mode.
2.
Use the
match
command to select a specific type of traffic based on an access
list, a DSCP or IP Precedence value, or a VLAN.
3.
Use the
policy-map
command to designate a policy name for a specific
manner in which ingress traffic will be handled, and enter the Policy Map
configuration mode.
4.
Use the
class
command to identify the class map, and enter Policy Map Class
configuration mode. A policy map can contain multiple class statements.
Table 4-82 Quality of Service Commands
Command
Function
Mode Page
class-map
Creates a class map for a type of traffic
GC
4-258
match
Defines the criteria used to classify traffic
CM
4-259
rename
Redefines the name of a class map
CM
4-260
description
Specifies the description of a class map
CM
4-260
policy-map
Creates a policy map for multiple interfaces
GC
4-261
class
Defines a traffic classification for the policy to act on
PM
4-261
rename
Redefines the name of a policy map
PM
4-260
description
Specifies the description of a policy map
PM
4-260
set
Classifies IP traffic by setting a CoS, DSCP, or IP-precedence
value in a packet
PM-C
4-262
police
Defines an enforcer for classified traffic
PM-C
4-263
service-policy
Applies a policy map defined by the
policy-map
command to
the input of a particular interface
IC
4-264
show class-map
Displays the QoS class maps which define matching criteria
used for classifying traffic
PE
4-264
show policy-map
Displays the QoS policy maps which define classification
criteria for incoming traffic, and may include policers for
bandwidth limitations
PE
4-265
show policy-map interface Displays the configuration of all classes configured for all
service policies on the specified interface
PE
4-265
Summary of Contents for 8126PL2-F
Page 1: ...MANAGEMENT GUIDE ta TigerSwitchTM 10 100 1000 L2 Lite SMB PoE Gigabit Switch SMC8126PL2 F ...
Page 2: ......
Page 6: ...vi ...
Page 22: ...Contents xxii ...
Page 26: ...Tables xxvi ...
Page 48: ...Initial Configuration 2 10 2 ...
Page 117: ...User Authentication 3 69 3 Web Click Security AAA Summary Figure 3 43 AAA Accounting Summary ...
Page 590: ...Command Line Interface 4 302 4 ...
Page 604: ...Glossary Glossary 8 ...
Page 612: ...Index 8 Index ...
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Page 614: ...149100000023A R01 SMC8126PL2 F ...