Create Policy Maps - Dell Force10 C150 Configuration Manual

Table 41-4
bandwidth allocation.
Specify WRED drop precedence
Specify WRED drop precedence
Specify a WRED profile to yellow and/or green traffic using the command
mode. See

Create Policy Maps

There are two types of policy maps: input and output.
Create Input Policy Maps
There are two types of input policy-maps: Layer 3 and Layer 2.
1. Create a Layer 3 input policy map using the command
mode. Create a Layer 2 input policy map by specifying the keyword
command.
2. Once you create an input policy map, do one or more of the following:
• Apply a class-map or input QoS policy to a queue
• Apply an input QoS policy to an input policy map
• Honor DSCP values on ingress packets
• Honoring dot1p values on ingress packets
3. Apply the input policy map to an interface. See page 868.
FTOS Behavior: On ExaScale, FTOS cannot classify protocol traffic on a Layer 2 interface using
Layer 3 policy map. The packets always take the default queue, Queue 0, and cannot be rate-policed.
Apply a class-map or input QoS policy to a queue
Assign an input QoS policy to a queue using the command
864 | Quality of Service
shows an example of choosing bandwidth weights for all four queues to achieve a target
Table 41-4. Assigning Bandwidth Weights for the C-Series and S-Series
Queue Weight
0
1
2
3
is supported only on platform
Apply a WRED profile to traffic on page
Equivalent
Percentage
1 0.44%
64 28.44%
128 56.89%
32 14.22%
871.
policy-map-input
service-queue
Target
Allocation
1%
25%
60%
14%
e
wred
from QOS-POLICY-OUT
from CONFIGURATION
layer2 policy-map-input
with the
from POLICY-MAP-IN mode.