Reference Guide

286 | Data Center Bridging (DCB)
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• You can only use a QoS ETS output policy in association with a priority group in a DCB output policy
and cannot be applied to an interface as a normal QoS output policy (refer to Applying an ETS Output
Policy for a Priority Group to an Interface and Create an output QoS policy in Chapter 38, Quality of
Service (QoS)).
Creating a QoS ETS Output Policy
A QoS output policy that you create to optimize bandwidth on an output interface for specified priority
traffic consists of the ETS settings used in DCBx negotiations with peer devices:
• Bandwidth percentage
• Queue scheduling
To create a QoS output policy with ETS settings, follow these steps:
Note: The IEEE 802.1Qaz, CEE, and CIN versions of ETS are supported.
Step Task Command Command Mode
1 Create a QoS output policy to configure the ETS
bandwidth allocation and scheduling for priority
traffic.
Maximum: 32 characters.
qos-policy-output
policy-name ets
CONFIGURATION
2 (Optional) Configure the method used to
schedule priority traffic in port queues.
• strict - Strict priority traffic is serviced before
any other queued traffic (refer to
Strict-priority Queueing in Chapter 38,
Quality of Service (QoS)).
Note: If you configure a scheduling method, you
cannot configure bandwidth allocation in Step 3.
scheduler value
POLICY-MAP-OUT-ETS
3 (Optional) Configure the bandwidth percentage
allocated to priority traffic in port queues.
Percentage range: 1 to 100% in units of 1%.
The sum of bandwidth percentage assigned to
dot1p priorities/queues in a priority group should
be 100%.
Default: None.
Note: If you configure bandwidth allocation, you
cannot configure a scheduling method in Step 2.
bandwidth-percentage
percentage
POLICY-MAP-OUT-ETS
4 Exit ETS Output Policy Configuration mode.
exit
POLICY-MAP-OUT-ETS