Service Manual

CONFIGURATION mode
qos-policy-output
2. After you congure an output QoS policy, do one or more of the following:
Scheduler Strict — Policy-based Strict-priority Queueing conguration is done through scheduler strict. It is applied to Qos-
policy-output. When scheduler strict is applied to multiple Queues, high queue number takes precedence.
Allocating Bandwidth to Queue
Specifying WRED Drop Precedence
Conguring Policy-Based Rate Shaping
To congure policy-based rate shaping, use the following command.
• Congure rate shape egress trac.
QOS-POLICY-OUT mode
rate-shape
Allocating Bandwidth to Queue
Schedule packets for egress based on Decit Round Robin (DRR). These strategies both oer 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 45. Default Bandwidth Weights
Queue Default Weight Equivalent Percentage
0 1 6.67%
1 2 13.33%
2 4 26.67%
3 8 53.33%
• Allocate bandwidth to queues.
bandwidth-percentage
Specifying WRED Drop Precedence
• Specify a WRED prole to yellow and/or green trac.
QOS-POLICY-OUT mode
wred
For more information, refer to Applying a WRED Prole to Trac.
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
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Quality of Service (QoS)