Cisco UNIFIED 9971, Deployment Manual, Page: 22 / 104

Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide
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mls qos trust cos
Configure the Cisco Access Point switch ports as well as any uplink switch ports for trust DSCP.
Below is a sample switch configuration for an access point:
mls qos
!
interface X
mls qos trust dscp
Note: When using the Cisco Unified Wireless LAN Controller, DSCP trust must be implemented or trust the UDP data ports
used by the Cisco Unified Wireless LAN Controller (CAPWAP = 5246 and 5247) on all interfaces where wireless packets will
traverse to ensure QoS markings are correctly set.
Configuring Cisco IOS Access Points
Use the following QoS policy on the Cisco IOS access point (AP) to enable DSCP to CoS (UP) mapping. This allows packets to
be placed into the proper queue as long as those packets are marked correctly when received at the access point level.
class-map match-all Voice
match ip dscp ef
class-map match-all Video
match ip dscp af41
class-map match-all CallControl
match ip dscp cs3
!
policy-map 9971
class Voice
set cos 6
class Video
set cos 5
class CallControl
set cos 4
!
interface dot11radioX
service-policy input 9971
service-policy output 9971
Configuring Switch Ports for Wired IP Phones
Enable the Cisco wired IP phone switch ports for Cisco phone trust.
Below is a sample switch configuration:
mls qos