DSCP Per-Hop Behaviours: Trust Boundary

To take advantage of quality of service across the network, packets should be marked as close to the source of the traffic as possible.

If the source device configures its own CoS or DSCP value, the switch connected to that device can be set to accept or reject those values.

If the switch is configured to accept the CoS/DSCP values from the source device, it means that it trusts that device and will not reclassify any of the markings on the packet.



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