Configuring Qos; Default Qos Configuration - Cisco 4500M Software Manual

Configuring QoS

Configuring QoS
Before configuring QoS, you must have a thorough understanding of these items:
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These sections describe how to configure QoS on the Catalyst 4000 family switch:
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Default QoS Configuration

Table 29-3
Table 29-3 QoS Default Configuration
Feature
Global QoS configuration
Interface QoS configuration (port based)
Interface CoS value
Interface DSCP value
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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 QoS Configuration, page 29-22
Configuration Guidelines, page 29-24
Enabling QoS Globally, page 29-24
Configuring a Trusted Boundary to Ensure Port Security, page 29-24
Enabling Dynamic Buffer Limiting, page 29-26
Creating Named Aggregate Policers, page 29-26
Configuring a QoS Policy, page 29-28
Configuring User Based Rate Limiting, page 29-35
Enabling or Disabling QoS on an Interface, page 29-39
Configuring VLAN-Based QoS on Layer 2 Interfaces, page 29-39
Configuring the Trust State of Interfaces, page 29-40
Configuring the CoS Value for an Interface, page 29-41
Configuring DSCP Values for an Interface, page 29-42
Configuring Transmit Queues, page 29-43
Configuring DSCP Maps, page 29-45
shows the QoS default configuration.
Default Value
Disabled
Enabled when QoS is globally enabled
0
0
Chapter 29 Configuring QoS
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