H3C S3100 Series Operation Manual page 593

For detailed information about priority trust mode, refer to
Configuration prerequisites
The priority trust mode to be configured is determined.
Configuration procedure
You can configure to trust port priority or packet priority.
procedure.
Table 1-10 Configure priority trust mode
Operation
Enter system view
Configure to
trust port
priority
Enter
Ethernet port
Configure
view
to trust port
priority
Configure
the port
priority
Exit to
system view
Configure to
trust packet
Configure
priority
to trust
packet
priority
Specify the
trusted
priority type
Command
system-view
undo priority trust
interface
interface-type
interface-number
priority priority-level
quit
priority trust
priority-trust { cos |
dscp |
ip-precedence }
1-14
Priority trust mode.
Table 1-10 shows the detailed configuration
Description
—
Optional
By default, the S3100 series
switches trust port priority.
—
Optional
By default, the port priority is
0.
—
Required
By default, the S3100 series
switches trust port priority.
If you configure to trust
packet priority without
specifying the
priority type, the switch
trusts the 802.1p priority of
the received packets.
On the S3100-SI series
switches, to configure to
trust DSCP or
precedence of packets,
you can use
priority-trust command to
specify the trusted priority
type directly, without
having to configure the
priority trust command.
On the S3100-EI series
switches, to configure to
trust DSCP precedence of
packets, you
configure the priority
trust command first and
then use the priority-trust
command to specify the
DSCP precedence.
Required
If you configure to trust
packet priority without
trusted
Use either
approach
IP
the
should