Specifications

CHAPTER 8
Voice and Video in a Campus Network
Using AutoQoS
When AutoQoS is enabled, the switch configures its interfaces based on a best-practices template. AutoQoS has the
following benefits:
n Automatic discovery and classification of network applications.
n Creates QoS policies for those applications.
n Configures the switch to support Cisco IP phones and network applications. Manual configuration can also be done
afterward.
n Sets up SNMP traps for network reporting.
n Configures consistently across your network when used on all routers and switches.
CDP must be enabled for AutoQoS to function properly with Cisco IP phones.
AutoQoS commands for switches running Native IOS are shown in Table 8-3.
Table 8-3 AutoQoS Commands for IOS
Command Description
(config-if)#auto qos voip trust Configures the port to trust the COS on all traffic entering the port.
(config-if)#auto qos voip Configures the port to trust traffic markings only if a Cisco phone is connected to
cisco-phone the port. Requires that CDP be enabled.
#show auto qos Shows the AutoQoS configuration. Does not show any manual QoS configuration:
[interface interface] Use show run to see that.
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CCNP SWITCH 642-813 Quick Reference by Denise Donohue