Summary Of Automatic Qos Features - Cisco WS-C6506 Software Manual

Chapter 53 Using Automatic QoS
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Summary of Automatic QoS Features

These sections summarize the automatic QoS features:
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Global Automatic QoS Features (set qos autoqos)
The global automatic QoS feature is summarized as follows:
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Port-Based Automatic QoS Features
The port-based automatic QoS features are summarized as follows:
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OL-8978-04
Global Automatic QoS Features (set qos autoqos), page 53-27
Port-Based Automatic QoS Features, page 53-27
Configures all switch-wide QoS parameters to accommodate and properly prioritize all traffic types
that are listed in the "Typical CoS and DSCP Values for Voice and Video Networks" section on
page 53-2.
Overwrites any old or misconfigured settings that were previously applied.
Works with the port-based automatic QoS command.
voip ciscoipphone
Changes the port to port-based QoS.
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For the 1p1q0t/1p3q1t ports, changes all ports to port-based mode.
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Creates a trust-cos QoS ACL for the ports that need it (1q4t/2q2t ports).
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Applies the trust-cos ACL to the port (1q4t/2q2t ports).
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– Enables trusted boundary on the port.
Sets the port trust to trust-cos.
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Supports the ports with or without an auxiliary VLAN.
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Supported only on the 10/100 ports and the 10/100/1000 ports.
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PFC or PFC2 not required (PFC and PFC2 are supported).
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voip ciscosoftphone
Changes the port to port-based QoS.
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– Changes trust to untrusted.
– For the 1p1q0t/1p3q1t ports, changes all ports to port-based mode.
Disables trusted boundary on the port.
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Applies two rate limiters, one for DSCP 46 and one for DSCP 26 inbound traffic, and trusts only
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inbound DSCP 46 and DSCP 26 traffic.
Results in traffic that is marked down to DSCP 0 for violations of either rate limiter.
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Remarks all other (non-DSCP 26 and 46) inbound traffic to DSCP 0.
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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Using the Automatic QoS Macro on the Switch
53-27