Cisco WLC and Wired port QoS Teams

[dazza007]

Hello

I am looking for some expert help for applying QoS across our Cisco network.

Background

Port use teams - Voice port 50000:50019 (mark DSCP 46), video ports 50020:50039 (mark DSCP 34), and sharing ports 50040:50059 (mark DSCP 24).

Teams marks ports for the teams service on 365

Group policy marks dscp based port assignment for teams on the client for video/audio/file screen sharing - verified in wireshark dscp marking.

After much research I have implemented a QoS profile on our 5508 WLC

skype voice-and-video Mark 34 Bidirectional

ms-lync-audio business-and-productivity-tools Mark 46 Bidirectional

ms-lync business-and-productivity-tools Mark 34 Bidirectional

ms-lync-video business-and-productivity-tools Mark 34 Bidirectional

statistical-conf-audio other Mark 46 Bidirectional

ms-office-365 other Mark 34 Bidirectional

ms-services other Mark 34 Bidirectional

internet-audio-streaming other Mark 46 Bidirectional

i have now looked at how to implement QoS on the 2960s switches and have finalised a QoS to implement on the switches. Creating L2 access list for the different teams port ranges and assigning them to a class map.

mac access-list EXTENDED Teams-Audio

20 permit tcp any any range 50000 50019

30 permit udp any any range 50000 50019

mac access-list EXTENDED Teams-Video

20 permit tcp any any range 50020 50039

30 permit udp any any range 50020 50039

mac access-list EXTENDED Teams-Sharing

20 permit tcp any any range 50040 50059

30 permit udp any any range 50040 50059

class-map match-all TEAMS

Match access-group name Teams-Audio

class-map match-all Audio

match ip dscp 46

class-map match-all Video

match ip dscp 34

class-map match-all Sharing

match ip dscp 24

class-map match-all BEST-EFFORT

match ip dscp default

exit

policy-map PER-DEVICE-TEAMS

class TEAMS

trust dscp

exit

class Audio

set dscp 46

exit

class Video

set dscp 34

exit

class Sharing

set dscp 24

exit

class BEST-EFFORT

set dscp default

This is applied to the ports as needed.

I am also looking at whether CDP applies QoS from the WLC profile on the attached switch but it is unclear.

Q is the QoS config correct for the switch and are the WLC profiles complete?

Many Thanks!

Darren

[RobD]

Hello,

 

For the wireless side of things, you need to match SSID to the QoS profile to what you need.

https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/quality_of_service.html

 

So for example, if you setup a video ssid and set that as gold then the traffic will automatically get dscp 34 (AF41), if that doesn't match on the switch then it will be re-classified again.

 

We use autoqos for all our cisco switches:

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-0_2_EX/qos/configuration_guide/b_qos_152ex_2960-x_cg/b_qos_152ex_2960-x_cg_chapter_011.html

 

Worth remembering that QoS potentially only applies internally (so great for p2p), once it hits a router on the internet, all markings could be ignored.

 

While we were running video conferencing internally it used to make a big difference for conference calls etc, then when we moved to teams it made no difference at all. We just increased our internet lines.

[dazza007]

Thank you very much!

Having read auto qos, which incidently never came up doing research, all i need to do now is enable auto qos trust dscp on the interfaces connected to the wifi. As the service and group policy marks the packets

[RobD]

Boom, awesome!