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Terms and Acronyms for CoS with DiffServ for IPv6


A method of reading a sequence of bits in a packet header or label and determining the packet’s forwarding class.

class of service

A set of forwarding class parameters that define different treatment for different traffic flows.

Differentiated Services (DiffServ)

A standards-based method of associating CoS parameters with traffic flows and their forwarding classes.

Differentiated Services code point (DSCP)

Values for a 6-bit field defined for IPv4 and IPv6 packet headers that can be used to enforce CoS distinctions in routers.