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Routing & Switching · Foundational

IP Precedence

The legacy 3-bit priority field in the IPv4 ToS byte, values 0-7, superseded by DSCP.

Definition

Values 6 and 7 are reserved for network control, 5 is used for voice. DSCP Class Selector values map directly to precedence values.

Example

set ip precedence 5

Exam tip

IP Precedence has 8 values; DSCP has 64.

Related terms