Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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trust

Specify dynamic classification (DSCP) or dot1p to trust.

Syntax

trust {diffserv [fallback]| dot1p [fallback]}

Parameters

diffserv	Enter the keyword `diffserv` to specify trust of DSCP markings.
dot1p	Enter the keyword `dot1p` to specify trust dot1p configuration.
fallback	Enter the keyword `fallback` to classify packets according to their DSCP value as a secondary option in case no match occurs against the configured class maps.

Defaults

none

Command Modes

CONFIGURATION (conf-policy-map-in)

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
8.3.16.1	Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

When you configure trust, matched bytes/packets counters are not incremented in the show qos statistics command.

Dynamic mapping honors packets marked according to the standard definitions of DSCP. The following lists the default mapping.

Table 1. Default Mapping
DSCP/CP hex Range (XXX)	DSCP Definition	Traditional IP Precedence	MXL Switch Internal Queue ID	DSCP/CP Decimal
111XXX		Network Control	3	48–63
110XXX		Internetwork Control	3	48–63
101XXX	EF (Expedited Forwarding)	CRITIC/ECP	2	32–47
100XXX	AF4 (Assured Forwarding)	Flash Override	2	32–47
011XXX	AF3	Flash	1	16–31
010XXX	AF2	Immediate	1	16–31
001XXX	AF1	Priority	0	0–15
000XXX	BE (Best Effort)	Best Effort	0	0–15