Create Policy Maps - Dell S4820T Configuration Manual

Configuring Policy-Based Rate Shaping
To configure policy-based rate shaping, use the following command.
• Configure rate shape egress traffic.
QOS-POLICY-OUT mode
rate-shape
Allocating Bandwidth to Queue
Schedule packets for egress based on Deficit Round Robin (DRR). These strategies both offer a
guaranteed data rate.
The following table lists the default bandwidth weights for each queue, and their equivalent percentage
which is derived by dividing the bandwidth weight by the sum of all queue weights.
Table 60. Default Bandwidth Weights
Queue
0
1
2
3
• Allocate bandwidth to queues.
bandwidth-percentage
Specifying WRED Drop Precedence
• Specify a WRED profile to yellow and/or green traffic.
QOS-POLICY-OUT mode
wred
For more information, refer to

Create Policy Maps

There are two types of policy maps: input and output.
Creating Input Policy Maps
There are two types of input policy-maps: Layer 3 and Layer 2.
1. Create a Layer 3 input policy map.
CONFIGURATION mode
policy-map-input
800
Default Weight
1
2
4
8
Applying a WRED Profile to
Equivalent Percentage
6.67%
13.33%
26.67%
53.33%
Traffic.
Quality of Service (QoS)