In our network, we are using Citrix based VDI infrastructure. Citrix and VDI servers are in another location and we are connecting through MPLS link.
I sniffed the Citrix packets in LAN and found that communication between Citrix server and local system through https (secure layer) not ICA media stream. How can we implement QOS for the scenario. We have Avaya IP Phones as well.
I searched in forums and I am get any proper inputs for the QOS implementation.
Citrix traffic flow:
MPLS CE router----------> Core switch --------> Access switches
I planned to mark the Citrix server IP with https as COS value 3 on Core switch and Priority the COS 3 to all access switches.
QoS is a end to end configuration, you have to mark the packets when they are leaving the router at your location (MPLS CE router ) and the router at remote location, all the service provider routers in between should respect those markings.
Acc to Cisco voice packets should be marked with the following values (L2 audio-5, L2 signaling-3, L3 audio-46 and L3 signaling- 26) , you can use auto QoS for LAN and configure the switch ports with either trust COS or trust DSCP values.
On the router you can create a class-map for the traffic- below is the example.
class-map match-any voice
match dscp ef ( or match cos 5 )
class-map match-any signaling
match dscp af41
match dscp af31
class-map match-any data
match protocol citrix
You can then assign the markings based on your requirements and selected service provider's QoS profile- below is the example
priority percent 30 (you can use priority bandwidth command also-Priority command will create a LLQ for voice traffic)
You can use auto QoS for your LAN but usually you won't see any latency in the LAN so you can just create a policy map on your edge router and ask your service provider to respect those markings on their side.
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