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Although Auto SmartPort detects the Cisco switch it does not invoke the event trigger automatically. The event trigger needs
to be manually invoked to map the switch to macros.
Information 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, 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.
System built-in event triggers exist for various devices based mostly on CDP and LLDP messages and some MAC address. These
triggers are enabled as long as Auto SmartPort is enabled.
You can configure user-defined trigger groups for profiles and devices. The name of the trigger group is used to associate
a user-defined macro.
Auto SmartPort Macros
The Auto SmartPort macros are groups of CLI commands. Detection of devices on a port triggers the application of the macro
for the device. System built-in macros exist for various devices, and, by default, system built-in triggers are mapped to
the corresponding built-in macros. You can change the mapping of built-in triggers or macros as needed.
A macro basically applies or removes a set of CLIs on an interface based on the link status. In a macro, the link status is
checked. If the link is up, then a set of CLIs is applied; if the link is down, the set is removed (the no format of the CLIs
are applied). The part of the macro that applies the set of CLIs is termed macro. The part that removes the CLIs (the no format
of the CLIs) are termed antimacro.
When a device is connected to an Auto SmartPort, if it gets classified as a lighting end point, it invokes the event trigger
CISCO_LIGHT_EVENT, and the macro CISCO_LIGHT_AUTO_SMARTPORT is executed.
Customizing Device Classifier
The device classifier collects information from protocols such as CDP, LLDP, DHCP to identify devices. You must enable CDP
and LLDP on a device. To make DHCP options information available to the device classifier, you must enable the DHCP Snooping
feature on the device. The device attributes that are collected from these protocols are evaluated against a set of profiles
available to the device classifier to find the best match. The best-matched profile is used for device identification.
The device classifier uses three types of profile definitions—built-in, default, and user-defined.
Built-in profiles contain the device profiles that are known to the Auto SmartPort module that comprises a limited set of
Cisco devices. They are built into Cisco IOS and cannot be changed.
Default profiles are stored as a text file in nonvolatile storage and allow the device classifier to identify a much larger
set of devices. Default profiles are updated as part of the Cisco IOS archive download.
User-defined profiles support custom profiling based on users' input. The device classifier identifies rules, conditions,
and profiles from the user input.
Commands run by CISCO_LIGHT_AUTO_SMARTPORT
When the macro is executed, it runs a series of commands on the switch.
The commands that are executed by running the macro CISCO_LIGHT_AUTO_SMARTPORT are:
switchport mode access
switchport port-security violation restrict
switchport port-security mac-address sticky
switchport port-security
power inline port poe-ha
storm-control broadcast level 50.00
storm-control multicast level 50.00
storm-control unicast level 50.00
spanning-tree portfast
spanning-tree bpduguard enable
Enabling Auto SmartPort
Note
Auto SmartPorts are disabled by default.
To disable Auto SmartPort macros on a specific port, use the no macro auto global processing interface command before enabling Auto SmartPort globally.
To enable Auto SmartPort globally, use the macro auto global processing global configuration command.
To enable an Auto SmartPort, perform this task:
Procedure
Command or Action
Purpose
Step 1
enable
Example:
Device> enable
Enables privileged EXEC mode.
Enter your password if prompted.
Step 2
configure terminal
Example:
Device# configure terminal
Enters global configuration mode.
Step 3
device classifier
Example:
Device(config)# device classifier
Enables the device classifier.
Use no device classifier command to disable the device classifier.
Step 4
macro auto global processing
Example:
Device(config)# macro auto global processing
Enables Auto SmartPorts on the switch globally.
Use no macro auto global processing command to disable Auto SmartPort globally.
Step 5
end
Example:
Device(config)# end
Returns to privileged EXEC mode.
Step 6
show running-config
Example:
Device# show running-config
Verifies your entries.
Step 7
copy running-config startup-config
Example:
Device# copy running-config startup-config
(Optional) Saves your entries in the configuration file.
How to Configure Auto SmartPorts
The following section provides information about how to configure auto smartports.
Configuring a Device Classifier Profile
To customise device classifier profile, follow the steps:
Before you begin
Disable device classifier before customising device classifier profiles. Use the no device classifier command to disable device classifier.
condition-name sets the name of the condition for device classifier.
op OR defines OR operator of rules. If either of the protocols defined matches, the device gets classified.
op AND defines AND operator of rules. If all the protocols defined matches, the device gets classified.
Note
If you change any of the parameters of the condition, it is considered as a new condition. In this case, default AND operator of rules is applied for both the conditions.
Step 4
{cdp|dhcp|lldp}tlv-type number value{integer num|string name|regex regular expression}
Example:
Device(config-device-classifier-condition)# cdp tlv-type 1 value String TS01
Configures profiling based on match of TLV for either integer or string value of the given protocol. The protocols supported
are CDP, DHCP, and LLDP.
tlv-type number configures application TLV type information. The number range is 1 to 255.
value configures application TLV value information. You can set an integer, regular expression or a string value.
Note
The supported protocols are CDP, DHCP, and LLDP. Protocols like HTTP, OUI are not supported in Cisco IOS XE Bengaluru 17.4.1.
The following is a sample configuration of profiling for two different protocols with device name TLV of CDP packet and system
name TLV of LLDP packet. If both the protocol matches are found, the device gets classified as Terminal-Server.
Device> enable
Device# configure terminal
Device(config)# device classifier condition ts-cond2 op OR
Device(config-device-classifier-condition)# cdp tlv-type 1 value integer 0x0029
Device(config-device-classifier-condition)#lldp tlv-type 5 value String TS02
Device(config-device-classifier-condition)#lldp tlv-type 4 value regex fibre*
Device(config-device-classifier-condition)# exit
Device(config)#device classifier device-type Terminal-Server
Device(config-device-classifier-dtype)# condition ts-cond2
The following is a sample configuration of profiling for two different protocols with device name TLV of CDP packet and system
name TLV of LLDP packet. If both the protocol matches are found, the device gets classified as Terminal-Server.
Device> enable
Device# configure terminal
Device(config)# device classifier condition ts-cond2 op AND
Device(config-device-classifier-condition)# cdp tlv-type 1 value integer 0x0001
Device(config-device-classifier-condition)#lldp tlv-type 5 value String TS02
Device(config-device-classifier-condition)#lldp tlv-type 4 value regex fibre*
Device(config-device-classifier-condition)# exit
Device(config)#device classifier device-type Terminal-Server
Device(config-device-classifier-dtype)# condition ts-cond3
Feature Information for Auto SmartPorts
The following table provides release information about the feature or features described in this module. This table lists
only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise,
subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco
Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Table 1. Feature Information for Auto SmartPorts
Feature Name
Releases
Feature Information
Auto SmartPorts
Cisco IOS XE Everest 16.5.1a
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.
Device Classifier Profiles
Cisco IOS XE Bengaluru 17.4.1
Allows you to configure the rules for matching and classifying the device using device classifier conditions.