H3C Technologies H3C S12500 Series Switches User Manual
Page 43
34
Step Command
Remarks
1.
Enter system
view.
system-view N/A
2.
Enter colored
priority mapping
table view.
qos map-table color { green | yellow | red }
{ inbound { dot1p-dot1p | dot1p-dp | dot1p-dscp |
dot1p-exp | dot1p-lp | dscp-dot1p | dscp-dp |
dscp-dscp | dscp-exp | dscp-lp | exp-dot1p |
exp-dp | exp-dscp | exp-exp | exp-lp } | outbound
{ dot1p-dot1p | dot1p-dscp | dot1p-exp |
dscp-dot1p | dscp-dscp | dscp-exp | exp-dot1p |
exp-dscp | exp-exp } | up-dscp }
N/A
3.
Configure the
colored priority
mapping table.
import import-value-list export export-value
Newly configured mappings
overwrite the old ones.
Configuring a port to trust packet priority for priority mapping
You can configure the device to trust a particular priority field carried in packets for priority mapping on
ports or globally.
When you configure the trusted packet priority type on an interface or port group, use the following
available keywords:
•
auto—Automatically selects the priority of each received packet according to packet type for
mapping.
For Layer 2 packets, 802.1p priority is used; for Layer 3 packets, IP precedence is used; for MPLS
packets, EXP is used.
•
dot1p—Uses the 802.1p priority of received packets for mapping.
•
dscp—Uses the DSCP precedence of received IP packets for mapping.
•
exp—Uses the EXP value of received MPLS packets for mapping.
To configure the trusted packet priority type on an interface or port group:
Step Command
Remarks
1.
Enter system view.
system-view N/A
2.
Enter interface view or
port group view.
•
Enter interface view:
interface
interface-type
interface-number
•
Enter port group view:
port-group manual
port-group-name
Use either command.
Settings in Ethernet interface view take effect on
the current interface. Settings in port group view
take effect on all ports in the port group.
3.
Configure the trusted
packet priority type for
the interface.
qos trust { auto | dot1p |
dscp | exp } [ override ]
By default, the port priority is trusted for priority
mapping.