3850 Switch - QOS

Question

HI
We've just purchased 3850 switch part of a wireless upgrade, but we are usign 8500 wlc.
Want to use the 3580 just as a edge switch without the wlc as we didn't purchase the licences.
Using our exsiting 3750x template haing issues with the QOS settings
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue input cos-map queue 2 threshold 1 3
mls qos srr-queue input dscp-map queue 2 threshold 1 24
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 1 2
mls qos srr-queue output cos-map queue 2 threshold 3 3
mls qos srr-queue output cos-map queue 3 threshold 1 1
mls qos srr-queue output cos-map queue 3 threshold 3 0
mls qos srr-queue output cos-map queue 4 threshold 3 6 7
mls qos queue-set output 2 threshold 2 3200 3200 100 3200
mls qos queue-set output 2 buffers 10 70 10 10
mls qos
any help would be apprieicated in pointing to right direction.
Have been looking for last couple of days.
cheers

Answer 1

Hi
this might help (as we moved from 3750 to 3850 switches, we had to rebuild qos).
The basic idea is something like this
Class-maps:
class-map match-any CM_VOIP
match dscp ef
class-map match-any CM_SIGNALING
match ip dscp cs3
match ip dscp af31
class-map match-any VC_VIDEO
match dscp af41
Policy map for the uplink:
policy-map UPLINK-OUT
class CM_VOIP
priority level 1 percent 10 (this is the high priority queue)
police cir percent 10 conform-action transmit exceed-action drop
class CM_SIGNALING
priority level 2 percent 5 (low priority queue)
police cir percent 5 conform-action transmit exceed-action drop
class VC_VIDEO
bandwidth remaining percent 10
class class-default
bandwidth remaining percent 75
Uplink config:
Interface Gi1/1/1
Service-policy output UPLINK-OUT
This way you can build your qos policies. You can tune anyway you like / configure more traffic types and/or confighure policies for access ports