Enabling Auto Smartport; Identifying Smartport Type - Cisco Small Business 200 Series Administration Manual

Smartport
Auto Smartport
• If multiple devices are attached to an interface, a configuration profile that is appropriate for all of the
devices is applied to the interface if possible.
• If a device is aged out (no longer receiving advertisements from other devices), the interface
configuration is changed according to its Persistent Status. If the Persistent Status is enabled, the
interface configuration is retained. If not, the Smartport Type reverts to Default.

Enabling Auto Smartport

Auto Smartport can be enabled globally in the Properties page in the following ways:
• Enabled—This manually enables Auto Smartport and places it into operation immediately.
• Enable by Auto Voice VLAN—This enables Auto Smartport to operate if Auto Voice VLAN is enabled
and in operation. Enable by Auto Voice VLAN is the default.
NOTE
See Voice VLAN for more information on enabling Auto Voice VLAN

Identifying Smartport Type

If Auto Smartport is globally enabled (in the Properties page), and at an interface (in the Interface Settings
page), the device applies a Smartport macro to the interface based on the Smartport type of the attaching
device. Auto Smartport derives the Smartport types of attaching devices based on the CDP and/or LLDP
the devices advertise.
If, for example, an IP phone is attached to a port, it transmits CDP or LLDP packets that advertise its
capabilities. After reception of these CDP and/or LLDP packets, the device derives the appropriate
Smartport type for phone and applies the corresponding Smartport macro to the interface where the IP
phone attaches.
Unless Persistent Auto Smartport is enabled on an interface, the Smartport type and resulting configuration
applied by Auto Smartport is removed if the attaching device(s) ages out, links down, reboots, or conflicting
capabilities are received. Aging out times are determined by the absence of CDP and/or LLDP
advertisements from the device for a specified time period.
Using CDP/LLDP Information to Identify Smartport Types
The device detects the type of device attached to the port, based on the CDP/LLDP capabilities.
Cisco Small Business 200 Series Smart Switch Administration Guide
In addition to enabling Auto Smartport globally, you must enable Auto Smartport at
the desired interface as well. By default, Auto Smartport is enabled at all the
interfaces.
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