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Software Configuration Guide—Release 15.0(2)SG
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17
Configuring Auto SmartPort Macros
This chapter describes how to configure and apply Auto SmartPort macros on the Catalyst 4500 series
switch.
This chapter includes the following major sections:
• About Auto SmartPorts, page 17-1
• Configuring Auto SmartPorts, page 17-2
• Displaying Auto SmartPorts, page 17-13
Note For complete syntax and usage information for the switch commands used in this chapter, look at the
Cisco Catalyst 4500 Series Switch Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/hw/switches/ps4324/index.html
If the command is not found in the Catalyst 4500 Command Reference, it is located in the larger Cisco
IOS library. Refer to the Cisco IOS Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/ps6350/index.html

About Auto SmartPorts

Auto SmartPort macros dynamically configure ports based on the device type detected on the port. When
the switch detects a new device on a port, it applies the appropriate Auto SmartPorts macro. When a
link-down event occurs on the port, the switch removes the macro. For example, when you connect a
Cisco IP phone to a port, Auto SmartPorts automatically applies the Cisco IP phone macro. The Cisco
IP phone macro enables quality of service (QoS), security features, and a dedicated voice VLAN to
ensure proper treatment of delay-sensitive voice traffic.
Auto SmartPorts uses event triggers to map devices to macros. The most common event triggers are
based on Cisco Discovery Protocol (CDP) messages received from connected devices. The detection of
a device (Cisco IP phone, Cisco wireless access point, Cisco switch, or Cisco router) invokes an event
trigger for that device.
Link Layer Discovery Protocol (LLDP) is used to detect devices that do not support CDP. Other
mechanisms used as event triggers include the 802.1X authentication result and MAC-address learned.