Create A Qos Policy - Dell Force10 S4810P Configuration Manual

High-density, 1ru 48-port 10gbe switch

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Create a QoS Policy

There are two types of QoS policies: input and output.

Input QoS policies regulate Layer 3 and Layer 2 ingress traffic. The regulation mechanisms for input QoS

policies are rate policing and setting priority values. There are two types of input QoS policies: Layer 3 and

Layer 3 QoS input policies allow you to rate police and set a DSCP or dot1p value.

Layer 2 QoS input policies allow you to rate police and set a dot1p value.

Output QoS policies regulate Layer 3 egress traffic. The regulation mechanisms for output QoS policies

are rate limiting, rate shaping, and WRED.

Note: When changing a "service-queue" configuration in a QoS policy map, all QoS rules are deleted and

re-added automatically to ensure that the order of the rules is maintained. As a result, the Matched

Packets value shown in the "show qos statistics" command is reset.

Note: To avoid issues caused by misconfiguration, Dell Force10 recommends configuring either DCBX or

Egress QoS features, but not both simultaneously. If both DCBX and Egress QoS are enabled at the

same time, the DCBX configuration will be applied and unexpected behavior will occur on the Egress

Create an input QoS policy

To create an input QoS policy:

1. Create a Layer 3 input QoS policy using the command

Create a Layer 2 input QoS policy by specifying the keyword

2. Once you create an input QoS policy, do one or more of the following:

Configure policy-based rate policing

Set a DSCP value for egress packets

Set a dot1p value for egress packets

Configure policy-based rate policing

Rate police ingress traffic using the command rate-police from QOS-POLICY-IN mode.

Set a DSCP value for egress packets

Quality of Service (QoS)

qos-policy-input

is supported only on platform

from CONFIGURATION mode.

after the command

qos-policy-input