Digisol DG-FS4528P, Management Manual

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Q
UALITY OF
S
ERVICE
C
OMMANDS
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.
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. Set an ACL to enable filtering for the criteria specified in the match
command.
Table 134: Quality of Service Commands
Command Function Mode
class-map Creates a class map for a type of traffic GC
description Specifies the description of a class map CM
match Defines the criteria used to classify traffic CM
rename Redefines the name of a class map CM
policy-map Creates a policy map for multiple interfaces GC
description Specifies the description of a policy map PM
class Defines a traffic classification for the policy to act on PM
rename Redefines the name of a policy map PM
police Defines an enforcer for classified traffic based on a
metered flow rate
PM-C
set Classifies IP traffic by setting a CoS, DSCP, or IP-
precedence value in a packet
PM-C
service-policy Applies a policy map defined by the policy-map
command to the input of a particular interface
IC
show class-map Displays the QoS class maps which define matching
criteria used for classifying traffic
PE
show policy-map Displays the QoS policy maps which define
classification criteria for incoming traffic, and may
include policers for bandwidth limitations
PE
show policy-map interface Displays the configuration of all classes configured for
all service policies on the specified interface
PE