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Chapter 38: Quality of Service Commands
class-map
Use the
match
command to select a specific type of traffic based on an
2.
access list, an IPv4 DSCP value, IPv4 Precedence value, IPv6 DSCP
value, a VLAN, or a CoS value.
Use the
policy-map
3.
manner in which ingress traffic will be handled, and enter the Policy
Map configuration mode.
Use the
class
command to identify the class map, and enter Policy Map
4.
Class configuration mode. A policy map can contain up to 16 class
maps.
Use the
set
phb,
set cos
5.
behavior, the class of service value in the VLAN tag, or the priority bits
in the IP header (IP DSCP value) for the matching traffic class, and use
one of the police commands to monitor parameters such as the
average flow and burst rate, and drop any traffic that exceeds the
specified rate, or just reduce the DSCP service level for traffic
exceeding the specified rate.
Use the
service-policy
6.
interface.
Create a Class Map before creating a Policy Map.
N
:
OTE
This command creates a class map used for matching packets to the
specified class, and enters Class Map configuration mode. Use the no form
to delete a class map.
S
YNTAX
[no] class-map class-map-name [match-all | match-any]
class-map-name - Name of the class map. (Range: 1-32 characters)
match-all - Match all conditions within a class map.
match-any - Match any condition within a class map.
D
S
EFAULT
ETTING
None
C
M
OMMAND
ODE
Global Configuration
C
U
OMMAND
SAGE
First enter this command to designate a class map and enter the Class
•
Map configuration mode. Then use
criteria for ingress traffic that will be classified under this class map.
•
One or more class maps can be assigned to a policy map
The policy map is then bound by a service policy to an interface
– 1134 –
command to designate a policy name for a specific
or
set ip dscp
command to modify the per-hop
command to assign a policy map to a specific
match
commands to specify the
(page
1137).
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