Enabling Qos Rate Adjustment - Dell Z9000 Configuration Manual

Creating Output Policy Maps
Creating output policy maps is supported on the Z9000 platform.
1. Create an output policy map.
CONFIGURATION mode
policy-map-output
2. After you create an output policy map, do one or more of the following:
Applying an Output QoS Policy to a Queue
Specifying an Aggregate QoS Policy
Applying an Output Policy Map to an Interface
3. Apply the policy map to an interface.
Applying an Output QoS Policy to a Queue
To apply an output QoS policy to a queue, use the following command.
• Apply an output QoS policy to queues.
INTERFACE mode
service-queue
Specifying an Aggregate QoS Policy
To specify an aggregate QoS policy, use the following command.
• Specify an aggregate QoS policy.
POLICY-MAP-OUT mode
policy-aggregate
Applying an Output Policy Map to an Interface
To apply an output policy map to an interface, use the following command.
• Apply an input policy map to an interface.
INTERFACE mode
service-policy output
You can apply the same policy map to multiple interfaces, and you can modify a policy map after you
apply it.

Enabling QoS Rate Adjustment

By default while rate limiting, policing, and shaping, Dell Networking OS does not include the Preamble,
SFD, or the IFG fields. These fields are overhead; only the fields from MAC destination address to the CRC
are used for forwarding and are included in these rate metering calculations.
The Ethernet packet format consists of:
• Preamble: 7 bytes Preamble
Quality of Service (QoS)
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