Dscp Values - Cisco 10000 Series Configuration Manual

Quality of service configuration guide

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IP Differentiated Services Code Point Marking

DSCP Values

The following differentiated services (DiffServ) RFCs define DSCP values:

The RFCs do not dictate the way to implement PHBs; this is the responsibility of the vendor. Cisco

implements queuing techniques that can base their PHB on the IP precedence or DSCP value in the IP

header of a packet. Based on DSCP or IP precedence, traffic can be put into a particular service class.

Packets within a service class are treated the same way.

Cisco 10000 Series Router Quality of Service Configuration Guide

RFC-2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers

RFC-2475, An Architecture for Differentiated Services

RFC-2597, Assured Forwarding PHB Group

RFC-2598, An Expedited Forwarding PHB

lists only the DSCP values suggested by the DiffServ RFCs.

Best Effort or Default

Binary Value

Defined in RFC

Marking Traffic

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