Multiple Devices Attached to the Port
The switch derives the SmartPort type of an attaching device based on the capabilities the device advertises in its CDP and/or LLDP packets.
If an interface is attached with more than one device, possibly though a hub, Auto Smartport will take all the capabilities advertisement it receives from the interface into consideration when assigning the Smartport type for the interface. The assignment is based on the following algorithm:
- If all devices on an interface advertise the same capability (there is no conflict) the matching Smartport type is applied to the interface.
- If one of the devices is a switch, the Switch Smartport type is used.
- If one of the devices is an AP, the Wireless Access Point Smartport type is used.
- If one of the devices is an IP phone and another device is a host, the ip_phone_desktop Smartport type is used.
- If one of the devices is an IP phone desktop and the other is an IP phone or host, the ip_phone_desktop Smartport type is used.
- In all other cases the default Smartport type is used.
For more information about LLDP/CDP refer to the Configuring LLDP and Configuring CDP sections, respectively.