3Com Switch 8800 Advanced Software V5 Configuration Guide

856 CHAPTER 64: PRIORITY MAPPING
# Configure port priority for Ethernet 1/1/1.
[Sysname] interface ethernet 1/1/1
[Sysname-Ethernet1/1/1] qos priority 1
[Sysname-Ethernet1/1/1] quit
# Configure port priority for Ethernet 1/1/2.
[Sysname] interface ethernet 1/1/2
[Sysname-Ethernet1/1/2] qos priority 3
[Sysname-Ethernet1/1/2] quit
# Configure port priority for Ethernet 1/1/3.
[Sysname] interface ethernet 1/1/3
[Sysname-Ethernet1/1/3] qos priority 5
[Sysname-Ethernet1/1/3] quit
# Configure port priority for Ethernet 1/1/4.
[Sysname] interface ethernet 1/1/4
[Sysname-Ethernet1/1/4] qos priority 7
[Sysname-Ethernet1/1/4] quit
Configuring to Trust
Packet Priority
You can configure to trust the 802.1p precedence of a packet. For the packet
priority mapping process, refer to
“Priority Mapping Overview” on page 851.
Configuration Procedure Follow these steps to configure to trust packet priority:
n
■ With the 802.1p precedence values of packets configured to be trusted,
priority mapping based on 802.1p precedence is only available to packets with
VLAN tags.
■ POS interfaces do not support packet priority trust configuration.
To do... Use the command... Remarks
Enter system view system-view -
Enter
Ethernet
interface
view or
port group
view
Enter
Ethernet
interface
view
interface interface-type
interface-number
Use either the command
Configured in Ethernet interface
view, the setting is effective on
the current interface only;
configured in port group view,
the setting is effective on all the
ports in the port group.
Enter port
group view
port-group { manual
port-group-name | aggregation
agg-id }
Configure to trust the
802.1p precedence of a
packet
qos trust dot1p Optional
By default, the 802.1p
precedence of a packet is not
trusted on a port.
Display the priority trust
mode of a port
display qos trust interface [
interface-type interface-number
]
Optional
Available in any view