Setting Priority Processing To Dscp Or Cos - Edge-Core ECS3510-28T Management Manual

| Class of Service
C 10
HAPTER
Layer 3/4 Priority Settings
S P
ETTING RIORITY
P
ROCESSING TO
DSCP C S
OR O
The switch allows a choice between using DSCP or CoS priority processing
methods. Use the Priority > Trust Mode page to select the required
processing method.
CLI R
EFERENCES
"qos map trust-mode" on page 1168
◆
C U
OMMAND SAGE
If the QoS mapping mode is set to DSCP, and the ingress packet type is
◆
IPv4, then priority processing will be based on the DSCP value in the
ingress packet.
◆ If the QoS mapping mode is set to DSCP, and a non-IP packet is
received, the packet's CoS and CFI (Canonical Format Indicator) values
are used for priority processing if the packet is tagged. For an untagged
packet, the default port priority (see
processing.
If the QoS mapping mode is set to CoS, and the ingress packet type is
◆
IPv4, then priority processing will be based on the CoS and CFI values
in the ingress packet.
For an untagged packet, the default port priority (see
for priority processing.
P
ARAMETERS
These parameters are displayed:
◆ Interface – Specifies a port or trunk.
Trust Mode
◆
CoS – Maps layer 3/4 priorities using Class of Service values.
■
(This is the default setting.)
DSCP – Maps layer 3/4 priorities using Differentiated Services Code
■
Point values.
W I
EB NTERFACE
To configure the trust mode:
Click Traffic, Priority, Trust Mode.
1.
Select the interface type to display (Port or Trunk).
2.
Set the trust mode.
3.
Click Apply.
4.
– 276 –
page 269) is used for priority
page 269) is used