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Chapter 13: Configuring Quality of Service
Defining Advanced Mode
SFE1000P Gigabit Ethernet Switch Administration Guide
Chapter
13
Defining QoS Basic Mode
The
Basic Mode Page
contains information for enabling Trust on the device. Packets entering a QoS
domain are classified at the edge of the QoS domain.
Basic Mode Page
The
Basic Mode Page
contains the following fields:
•
Trust Mode
— Displays the trust mode. If a packet’s CoS tag and DSCP tag, and TCP/UDP
mapping are mapped to different queues, the Trust Mode determines the queue to which the
packet is assigned. Possible values are:
–
CoS
— Sets trust mode to CoS on the device. The CoS mapping determines the packet
queue
–
DSCP
— Sets trust mode to DSCP on the device. The DSCP mapping determines the
packet queue.
•
Always Rewrite DSCP
— Rewrites the packet DSCP tag according to the QoS DSCP
Rewriting configuration.
Always Rewrite DSCP
can only be selected if the Trust Mode is set to
DSCP
.