10-19-2015 04:48 AM - edited 03-08-2019 02:16 AM
Hi All,
We have new 3650 switches with voice devices behind them. All devices mark their traffic with dscp ef.
I have configured the switchport like this. I have configured auto qos trusting dscp.
testswitch# sh run int gi 2/0/46
Building configuration...
Current configuration : 383 bytes
!
interface GigabitEthernet2/0/46
...
auto qos trust dscp
...
service-policy input AutoQos-4.0-Trust-Dscp-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
I'm sure that the device (Voice gateway) itself sends marked packets into the switch.
When I run the command sh policy-map interface x, I get a global output, but under the category "AutoQos-4.0-Output-Priority-Queue" I don't see anything. I would expect this counter to increase, since the switch should forward my received packets with the ef marking.
Can someone help me understand these counters?
Thanks,
Joris
sh policy map interface gi 2/0/46 output
GigabitEthernet2/0/46
Service-policy output: AutoQos-4.0-Output-Policy
queue stats for all priority classes:
Queueing
priority level 1
(total drops) 0
(bytes output) 35020239095
Class-map: AutoQos-4.0-Output-Priority-Queue (match-any)
0 packets
Match: dscp cs4 (32) cs5 (40) ef (46)
0 packets, 0 bytes
5 minute rate 0 bps
Match: cos 5
0 packets, 0 bytes
5 minute rate 0 bps
Priority: 30% (30000 kbps), burst bytes 750000,
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)
0 packets, 0 bytes
5 minute rate 0 bps
Match: cos 3
0 packets, 0 bytes
5 minute rate 0 bps
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) 13421982966
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)
0 packets, 0 bytes
5 minute rate 0 bps
Match: cos 4
0 packets, 0 bytes
5 minute rate 0 bps
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)
0 packets, 0 bytes
5 minute rate 0 bps
Match: cos 2
0 packets, 0 bytes
5 minute rate 0 bps
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)
0 packets, 0 bytes
5 minute rate 0 bps
Match: cos 1
0 packets, 0 bytes
5 minute rate 0 bps
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)
0 packets, 0 bytes
5 minute rate 0 bps
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)
0 packets, 0 bytes
5 minute rate 0 bps
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) 8878180175
bandwidth remaining 25%
queue-buffers ratio 25
10-20-2015 01:16 PM
Hi,
The show policy-map command is not supported on the 3650 platform. The statistics shown should be ignored as they are not the right.
Please go through the following document for reference.
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3650/software/release/3se/qos/co
mmand_reference/b_qos_3se_3650_cr/b_qos_3se_3650_cr_chapter_010.html#wp336482906
Regards,
Jose
10-21-2015 03:38 AM
Thanks Jose,
I don't see a lot of show commands in this document to check incoming packets for dscp values.
Does this mean that there is no way to check this?
Thanks,
Joris
10-21-2015 10:02 AM
Hi Joris,
You can use the commands below to see the stats:
show platform qos queue config interface_type [interface_name]
show platform qos queue stats interface_type [interface_name]
Regards,
Jose
03-09-2018 12:09 PM
01-03-2020 01:58 PM
Which code version were you using on the 3850?
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