3com 5500-ei pwr Installationsanweisungen
1-17
To do…
Use the command…
Remarks
Enter Ethernet port view
interface interface-type
interface-number
interface-number
—
Configure to trust port
priority and configure the
port priority
priority and configure the
port priority
priority priority-level
Optional
By default, the switch trusts
port priority and the priority
of a port is 0.
port priority and the priority
of a port is 0.
Follow these steps to configure to trust packet priority:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter Ethernet port view
interface interface-type
interface-number
interface-number
—
Configure to trust packet
priority
priority
priority trust
Required
By default, the switch trusts
port priority.
port priority.
Configuration example
z
Configure to trust port priority on Ethernet 1/0/1 and set the priority of Ethernet 1/0/1
to 7.
Configuration procedure:
<Sysname> system-view
[Sysname] interface Ethernet1/0/1
[Sysname-Ethernet1/0/1] priority 7
z
Configure to trust packet priority on Ethernet 1/0/2.
Configuration procedure:
<Sysname> system-view
[Sysname] interface Ethernet1/0/2
[Sysname-Ethernet1/0/2] priority trust
Configuring the Mapping between 802.1p Priority and Local Precedence
When the default mapping between 802.1p priority and local precedence cannot satisfy
your requirements, you can modify the mapping at the CLI, thus modifying the mapping
between 802.1p priority and the output queues and assigning packets with different
priorities to the corresponding output queues.
Note that, this is a global setting, not a per port setting. This is only recommended for
advanced network environments.
Configuration prerequisites
The mapping between 802.1p priority and local precedence has been determined.