I am deploying auto qos for cisco IP phones across my network. I am having a little difficulty determining whether or not it is working properly. On the ports with cisco phones attached I added "auto qos voip cisco phone", which generated the required config:
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interface GigabitEthernet1/0/37
switchport access vlan 210
switchport mode access
switchport voice vlan 300
trust device cisco-phone
auto qos voip cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
service-policy input AutoQos-4.0-CiscoPhone-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
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When I do "show policy-map int gi1/0/37" I see hits on the VoIP signaling class, so it appears to be working:
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Class-map: AutoQos-4.0-Voip-Signal-CiscoPhone-Class (match-any)
41487 packets
Match: cos 3
QoS Set
dscp cs3
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On the 9200s uplink port I added "auto qos voip trust", which generated the following output:
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interface TenGigabitEthernet1/1/1
description Distribution Switch Uplink
switchport trunk native vlan 804
switchport trunk allowed vlan 10,28,210,300,404,455,471,480,804,807,902
switchport mode trunk
auto qos trust
service-policy input AutoQos-4.0-Trust-Cos-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
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However, when I do "show policy map int te1/1/1" the only class-map that shows any matching packets at all is the inbound "class-default". All others are zero. Shouldn't the outbound class map show some hits for the frames coming from the phones connected to this switch? The uplink te1/1/1 is the only egress from this switch, so voice frames must traverse it to get anywhere at all.
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ERH-1D1-1st-ACCS-9200-2809#sh policy-map int te1/1/1
TenGigabitEthernet1/1/1
Service-policy input: AutoQos-4.0-Trust-Cos-Input-Policy
Class-map: class-default (match-any)
20341131 packets
Match: any
QoS Set
cos cos table AutoQos-4.0-Trust-Cos-Table
Service-policy output: AutoQos-4.0-Output-Policy
queue stats for all priority classes:
Queueing
priority level 1
(total drops) 0
(bytes output) 6708548
Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
0 packets
Match: dscp cs4 (32) cs5 (40) ef (46)
Match: cos 5
Priority: 30% (3000000 kbps), burst bytes 75000000,
Priority Level: 1
Class-map: AutoQos-4.0-Output-Control-Mgmt-Queue (match-any)
0 packets
Match: dscp cs2 (16) cs3 (24) cs6 (48) cs7 (56)
Match: cos 3
Queueing
queue-limit dscp 16 percent 80
queue-limit dscp 24 percent 90
queue-limit dscp 48 percent 100
queue-limit dscp 56 percent 100
(total drops) 0
(bytes output) 133361
bandwidth remaining 10%
queue-buffers ratio 10
Class-map: AutoQos-4.0-Output-Multimedia-Conf-Queue (match-any)
0 packets
Match: dscp af41 (34) af42 (36) af43 (38)
Match: cos 4
Queueing
(total drops) 0
(bytes output) 0
bandwidth remaining 10%
queue-buffers ratio 10
Class-map: AutoQos-4.0-Output-Trans-Data-Queue (match-any)
0 packets
Match: dscp af21 (18) af22 (20) af23 (22)
Match: cos 2
Queueing
(total drops) 0
(bytes output) 0
bandwidth remaining 10%
queue-buffers ratio 10
Class-map: AutoQos-4.0-Output-Bulk-Data-Queue (match-any)
0 packets
Match: dscp af11 (10) af12 (12) af13 (14)
Match: cos 1
Queueing
(total drops) 0
(bytes output) 0
bandwidth remaining 4%
queue-buffers ratio 10
Class-map: AutoQos-4.0-Output-Scavenger-Queue (match-any)
0 packets
Match: dscp cs1 (8)
Queueing
(total drops) 0
(bytes output) 0
bandwidth remaining 1%
queue-buffers ratio 10
Class-map: AutoQos-4.0-Output-Multimedia-Strm-Queue (match-any)
0 packets
Match: dscp af31 (26) af32 (28) af33 (30)
Queueing
(total drops) 0
(bytes output) 0
bandwidth remaining 10%
queue-buffers ratio 10
Class-map: class-default (match-any)
0 packets
Match: any
Queueing
(total drops) 0
(bytes output) 14986668893
bandwidth remaining 25%
queue-buffers ratio 25
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Am I missing something? According to the cisco doc "auto qos voip trust" is the command to put on uplinks to other trusted network devices and "auto qos voip cisco-phone" is the command to put on access ports connected to phones. Is there some other piece of config I need, or is it working properly and there's just some other troubleshooting command I need to use in order to see it? using "show policy-map" it looks like the QoS settings for frames are not even being preserved from the access port to the uplink on the same switch.
Thanks,
-Mat Rouch
