Default Forwarding and CS0 provide best-effort behaviour and use a Differentiated Services field value of 0000 00.
This field value can be set on packets that are not or cant be classified by a quality of service mechanism such as queuing, shaping or policing.
It can happen when a quality of service policy is incomplete or if differentiated services code point values are set to those outside of the ones defined in class selector, assured forwarding or expedited forwarding per-hop behaviours.
Leave a Reply