Priority Trust - 3Com 5500-EI PWR Reference Manual

After you execute the priority command on a port, the port priority rather than the 802.1p
priority of each inbound 802.1q-tagged packet is used to identify the matching local
precedence for the packet (in the 802.1p-precedence-to-local precedence mapping table).
Then, the packet is assigned to the output queue corresponding to the local precedence.
If the priority command, the priority trust command, and the undo priority command are
configured on the same port, the command configured the last applies.
Related commands: priority trust.
Examples
# Configure Ethernet 1/0/1 to trust its port priority and set the priority of Ethernet 1/0/1 to
6.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet1/0/1
[Sysname-Ethernet1/0/1] priority 6

priority trust

Syntax
priority trust
undo priority
View
Ethernet port view
Parameters
None
Description
Use the priority trust command to configure the switch to trust the 802.1p priority of an
inbound packet.
Use the undo priority command to restore the default settings.
By default, port priority is trusted and the priority of a port is 0.
After you execute the priority trust command on a port, the 802.1p priority of each
inbound 802.1q-tagged packet is used to identify the matching local precedence for the
packet (in the 802.1p-precedence-to-local precedence mapping table). Then, the packet is
assigned to the output queue corresponding to the local precedence.
If the priority command, the priority trust command, and the undo priority command are
configured on the same port, the command configured the last applies.
Related commands: priority.
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