Huawei Quidway S7700 Configuration Manual - Qos page 18

Quidway S7700 Smart Routing Switch
Configuration Guide - QoS
To map PHBs to priorities of packets sent to a downstream device based on the mappings defined
in a DiffServ domain, bind the DiffServ domain to the outbound interface. The system then maps
PHBs and colors to priorities of packets based on the mappings defined in the DiffServ domain.
To bind multiple interfaces to the same DiffServ domain, perform the configuration on the port
group to reduce the workload.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Or run the port-group port-group-name command to enter the port group view.
Step 3 Run:
trust upstream { ds-domain-name | default | none }
The interface is bound to a DiffServ domain.
If the trust upstream none command is run on an interface, the S7700 does not perform priority
mapping for incoming and outgoing packets on the interface.
To delete the DiffServ domain that is bound to an interface, you must first run the undo trust
upstream command to delete the bound DiffServ domain. Then run the trust upstream
command to reconfigure the DiffServ domain.
For details about the mappings from the default 802.1p priorities to PHBs and colors, from PHBs
and colors to 802.1p priorities, from DSCP priorities to PHBs and colors, from PHBs and colors
to DSCP priorities, from EXP priorities to PHBs and colors, and from PHBs and colors to EXP
priorities, see the 8021p-inbound, 8021p-outbound, ip-dscp-inbound, ip-dscp-outbound, mpls-
exp-inbound, and mpls-exp-outbound commands.
Step 4 (Optional) Run:
undo qos phb marking enable
PHB mapping of outgoing packets is disabled.
By default, PHB mapping is enabled on an outbound interface.
----End
Issue 01 (2011-07-15)
NOTE
l The interface type can be Ethernet, GE, XGE, or Eth-Trunk.
l You need to create a port group before performing this task. For details on how to create a port group,
see (Optional) Configuring the Interface Group in the Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet.
NOTE
W series boards do not support the trust upstream none command.
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1 Class-based QoS Configuration
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