33-47
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 33 Configuring QoS
Configuring QoS
Use the
no
form of the appropriate command to delete a policy map or table map or remove an assigned
CoS, DSCP, precedence, or QoS-group value.
This example uses a policy map to remark a packet. The first marking (the
set
command) applies to the
QoS default class map that matches all traffic not matched by class
AF31-AF33
and sets all traffic to an
IP DSCP value of 1. The second marking sets the traffic in classes AF31 to AF33 to an IP DSCP of 3.
Switch(config)#
policy-map Example
Switch(config-pmap)#
class class-default
Switch(config-pmap-c)#
set ip dscp 1
Switch(config-pmap-c)#
exit
Switch(config-pmap)#
class AF31-AF33
Switch(config-pmap-c)#
set ip dscp 3
Switch(config-pmap-c)#
exit
Switch(config-pmap)#
exit
Switch(config)#
interface fastethernet0/1
Switch(config-if)#
service-policy input Example
Switch(config-if)#
exit
Step 4
set
qos-group
value
and/or
set
cos
{
cos_value |
cos
[
table
table-map-name
]
|
dscp
[
table
table-map-name
]
|
precedence
[
table
table-map-name
]}
and/or
set
[
ip
]
dscp
{
dscp_value
|
cos
[
table
table-map-name
]
|
dscp
[
table
table-map-name
]
|
precedence
[
table
table-map-name
]}
and/or
set
[
ip
]
precedence
{
precedence_value
|
cos
[
table
table-map-name
]
|
dscp
[
table
table-map-name
]
|
precedence
[
table
table-map-name
]}
Mark traffic by setting a new value in the packet, specifying a table map,
or specifying a QoS group.
•
For
qos-group
value,
identify a QoS group to be used at egress to
identify specific packets. The range is from 0 to 99.
•
For
cos
cos_value,
enter a new CoS value to be assigned to the
classified traffic. The range is 0 to 7.
•
For [
ip
]
dscp
new-dscp
, enter a new DSCP value to be assigned to
the classified traffic. The range is 0 to 63.
•
For [
ip
]
precedence
new-precedence,
enter a new IP-precedence
value to be assigned to the classified traffic. The range is 0 to 7.
•
You can also configure a CoS, DSCP, or IP precedence table and
optionally enter the table name. If you do not enter
table
table-map
name
, the table map default behavior is
copy
. See the
“Configuring
Table Maps” section on page 33-36
.
Step 5
exit
Return to policy-map configuration mode.
Step 6
exit
Return to global configuration mode.
Step 7
interface
interface-id
Enter interface configuration mode for the interface to which you want to
attach the policy.
Step 8
service-policy input
policy-map-name
Attach the policy map (created in Step 2) to the ingress interface.
Step 9
end
Return to privileged EXEC mode.
Step 10
show policy-map
[
policy-map-name
[
class
class-map-name
]]
Verify your entries.
Step 11
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Содержание ME 3400 Series
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