DSCP Insights | Sumble

What is DSCP?

Differentiated Services Code Point (DSCP) is a field in an IP packet header that enables differentiated services (DiffServ), a quality of service (QoS) mechanism. DSCP allows network devices to classify and prioritize network traffic, providing different levels of service to different types of data. It's commonly used to ensure that delay-sensitive applications like voice and video receive preferential treatment over less time-critical traffic like email or file transfers.

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What other technologies are related to DSCP?

DSCP Complementary Technologies

COS

Class of Service (CoS) is a layer 2 (Ethernet) mechanism for prioritizing traffic, which can be used alongside DSCP (layer 3) to provide end-to-end QoS.

mentioned alongside DSCP in 3% (57) of relevant job posts

QoS

Quality of Service (QoS) is a general term for technologies that prioritize traffic, and DSCP is a key component of QoS implementations. Other QoS mechanisms like traffic shaping or policing can complement DSCP marking.

mentioned alongside DSCP in 1% (135) of relevant job posts

MPLS

MPLS can utilize DSCP markings for QoS purposes, mapping DSCP values to MPLS EXP bits to maintain traffic prioritization across an MPLS network. Thus, MPLS and DSCP can work together.

mentioned alongside DSCP in 0% (98) of relevant job posts