Reference Guide

748 | Power over Ethernet
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Figure 39-5. Classifying VOIP Traffic and Applying QoS Policies for an Office VOIP Deployment
The following example is a screenshot showing some of the steps above, and the resulting running-config.
FTOS#sh run acl
!
ip access-list extended pc-subnet
seq 5 permit ip 201.1.1.0/24 any
!
ip access-list extended phone-signalling
seq 5 permit ip 192.1.1.0/24 host 192.1.1.1
!
ip access-list extended phone-subnet
seq 5 permit ip 192.1.1.0/24 any
FTOS#sh run class-map
!
Step Task Command Command Mode
1 Create three standard or extended access-lists, one each for
voice, voice signaling, and PC data, and place each in its
own match-any class-map.
ip access-list
class-map match-any
CONFIGURATION
CLASS-MAP
2 Create an input policy-map containing all three class-maps,
and assign each class-map a different service queue.
policy-map-input
service-queue
CONFIGURATION
POLICY-MAP-IN
3 Create two input QoS policies, one each for PC data and
voice signaling. Assign a different bandwidth weight to each
policy.
qos-policy-out
bandwidth-weight
CONFIGURATION
QOS-POLICY-IN
4 Create an output policy map containing both QoS policies,
and assign them to different service queues.
policy-map-out
service-queue
CONFIGURATION
POLICY-MAP-OUT
5 Assign a strict priority to unicast traffic in queue 3.
strict-priority
CONFIGURATION
6 Apply the input policy map you created in Step 2 to the
interface connected to the phone, and apply the output
policy map you created in Step 4 to the interface connected
your desired next-hop router.
service-policy
INTERFACE
6/10
6/2
FTOS#sh run int gi 6/2
!
interface GigabitEthernet 6/2
description "Uplink to E1200"
no ip address
switchport
service-policy output BW
no shutdown
E-SeriesC-SeriesIP Phone XPC
PC data
VLAN 300: Voice Signaling
VLAN 200: Voice
LLDP-MED advertisements
FTOS#sh run int gi 6/10
!
interface GigabitEthernet 6/10
description "IP Phone X”
no ip address
portmode hybrid
switchport
service-policy input phone-pc
power inline auto
no shutdown
FTOS#sh run lldp
protocol lldp
advertise med
advertise med voice 200 6 46
advertise med voice-signaling 300 5 28
no disable
VLAN 100: Data
queue 2, bandwidth weight 64
queue 3, strict priority
queue 1, bandwidth weight 8