/mcpmechanisms also attempt to ensure that media over unmanaged networks has the best possible quality in the face of packet loss, delay, and jitter. Recommended Deployment • Identify traffic based on trusted and untrusted devices. • Classify and mark traffic at the access switch edge. − Mark all audio with Expedited Forwarding class EF (includes all audio for voice-only and video calls). − Mark all critical desktop and room system video with an Assured Forwarding class of AF41. − Mark all Jabber, Mobile and Remote Access (MRA), and Edge video with an Assured Forwarding class of AF42. _______________________________________________________________________ Note This creates a class of video endpoints and video call flows that are opportunistic in nature. (For more details, see Opportunistic Video.) If AF42 marking and scheduling are not possible due to limitations on customer edge equipment or other reasons, then AF41 can be used for all video traffic. If that is the case, then the benefits of Opportunistic Video will be minimized. With only AF41 marking, all video traffic will compete equally for resources and rate adapt based on utilization in a self-regulating video network.
− Configure QoS on all media originating and terminating applications and MCUs across the solution. • Apply simplified WAN Edge policies for identifying, classifying, marking, and queuing collaboration traffic: − WAN edge ingress re-marking policy − WAN edge egress queuing and scheduling policy • Group video endpoints into classes of maximum video bitrate to limit bandwidth consumption based on endpoint type and usage in the solution. • Deploy Enhanced Locations Call Admission Control and limit calling based only in areas of the network where bandwidth resources are restricted. Benefits This deployment provides the following benefits: • Employs prescriptive recommendations to simplify deployment with a simplified QoS architecture. • Makes more efficient use of network resources. • Supports mobile and multi-media Collaboration devices. • Takes into account "unmanaged" network segments (Internet)