Configuring Standard Qos; Default Standard Qos Configuration - Cisco 2950 - Catalyst Switch Configuration Manual

Configuring Standard QoS

Configuring Standard QoS
Before configuring standard QoS, you must have a thorough understanding of these items:
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This section describes how to configure standard QoS on your switch:
Note If your switch is running the SI, you can configure only the features described in the
Classification Using Port Trust
display the QoS information as described in the
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Default Standard QoS Configuration

This is the default standard QoS configuration:
Note You can configure policy maps, policers, the CoS-to-DSCP map, and the DSCP-to-CoS map only if your
switch is running the EI.
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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
30-18
The types of applications used and the traffic patterns on your network.
Traffic characteristics and needs of your network. Is the traffic bursty? Do you need to reserve
bandwidth for voice and video streams?
Bandwidth requirements and speed of the network.
Location of congestion points in the network.
Default Standard QoS Configuration, page 30-18
Configuration Guidelines, page 30-19
Configuring Classification Using Port Trust States, page 30-20
Configuring a QoS Policy, page 30-26
Configuring CoS Maps, page 30-34
Configuring the Egress Queues, page 30-37
The default port CoS value is 0.
The CoS value of 0 is assigned to all incoming packets.
The default port trust state is untrusted.
No policy maps are configured.
No policers are configured.
The default CoS-to-DSCP map is shown in
The default DSCP-to-CoS map is shown in
The default scheduling method for the egress queues is strict priority.
For default CoS and WRR values, see the
States" and the "Configuring the Egress
"Displaying Standard QoS
Table 30-7.
Table 30-8.
"Configuring the Egress Queues" section on page
Chapter 30 Configuring QoS
"Configuring
Queues" sections. You can also
Information" section.
30-37.
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