Qos Port Default Classification - Alcatel-Lucent OmniSwitch 6850-48 Cli Reference Manual

qos port default classification

Specifies the default egress priority value to use for IP traffic ingressing on trusted ports.
qos port slot/port default classification {802.1p | dscp}
Syntax Definitions
slot/port
802.1p
dscp
Defaults
parameter
802.1p | dscp
Platforms Supported
OmniSwitch 6400, 6850, 6850E, 6855, 9000E
Usage Guidelines
•
The egress priority assigned to an IP packet received on a trusted port is based on the DSCP value of
the packet unless 802.1p is specified as the default priority value.
•
Note that when the default priority value is set to DSCP (using the default DSCP value of 0), the DSCP
value of a tagged IP packet is mapped to the 802.1p value for that same packet. In other words, the
802.1p priority is overwritten with the DSCP value. This does not apply to Layer 2 packets.
•
The default classification priority is not used if there is a matching QoS policy rule that sets the egress
priority value.
•
This command does not affect Layer 2 traffic, which is always classified with 802.1p.
•
In some network situations, some IP traffic may be dropped before any QoS rules can take effect for
the traffic.
Examples
-> qos port 3/1 default classification tos
-> qos port 8/24 default classification dscp
-> qos port 7/1 default classification 802.1p
Release History
Release 6.1; command was introduced.
page 32-60
The slot number and port number of the physical port.
Specifies that the 802.1p value of the flow will be used to prioritize
flows coming in on the port.
Specifies that DSCP of the flow will be used to prioritize flows coming
in on the port.
default
DSCP
OmniSwitch CLI Reference Guide
QoS Commands
June 2012