Configuring COS on 2960G switches with non-cisco phones
I have 7 POE switches that have ESI IP phones attached. I have two VLANS, 1 and 2. VLAN 2 is used for voice and is defined in each switch.
The ESI IP phones connect to my POE switch ports and the pc attaches through the ESI IP phone.
I have had voice quality issue between floors in my building. Talking to others on my floor via the IP phone, there are no voice quality issues.
On each switch i have the following global commands:
no mls qos rewrite ip dscp
Below are my port configurations.
interface Port-channel1 switchport trunk allowed vlan 1,2 This is my EtherChannel switchport mode trunk switchport nonegotiate
interface GigabitEthernet0/1 This is an example of a port that my ESI IP phones are attached to. switchport trunk allowed vlan 1,2 switchport mode trunk switchport nonegotiate priority-queue out mls qos trust cos channel-group 1 mode on
interface GigabitEthernet0/24 switchport trunk allowed vlan 1,2 This is an example of my uplink port to other switches. switchport mode trunk switchport nonegotiate priority-queue out mls qos trust cos channel-group 6 mode on
POESWITCH#sh mls qos int gi1/0/15
trust state: trust cos
trust mode: trust cos
trust enabled flag: ena
COS override: dis
default COS: 0
DSCP Mutation Map: Default DSCP Mutation Mapsh msl
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