Service Manual

trust
Specify dynamic classication (DSCP) or dot1p to trust.
S3048–ON
Syntax
trust {diffserv [fallback]| dot1p [fallback]}
Parameters
diserv Enter the keyword diffserv to specify trust of DSCP markings.
dot1p Enter the keyword dot1p to specify trust dot1p conguration.
fallback Enter the keyword fallback to classify packets according to their DSCP or dot1p
value as a secondary option in case no match occurs against the congured class
maps.
Defaults none
Command Modes CONFIGURATION (conf-policy-map-in)
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
Usage Information
When you congure trust, matched bytes/packets counters are not incremented in the show qos
statistics command.
Dynamic mapping honors packets marked according to the standard denitions of DSCP. The following lists
the default mapping.
DSCP/CP hex
Range (XXX)
DSCP
Denition
Traditional IP
Precedence
S6000 Internal
Queue ID
S-Series
Internal Queue
ID
DSCP/CP
Decimal
111XXX Network
Control
7 3 48–63
110XXX Internetwork
Control
6 3 48–63
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 5 2 32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 4 2 32–47
1190
Quality of Service (QoS)