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Auto Smartport
141 Cisco Small Business 200 Series Smart Switch Administration Guide
10
NOTE If only the IP Phone and Host bits are set, then the Smartport type is
ip_phone_desktop.
Multiple Devices Attached to the Port
The device derives the Smartport type of a connected device via the capabilities
the device advertises in its CDP and/or LLDP packets.
If multiple devices are connected to the device through one interface, Auto
Smartport considers each capability advertisement it receives through that
interface in order to assign the correct Smartport type. 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.
DOCSIS cable device IETF RFC 4639
and IETF RFC 4546
7Ignore
Station Only IETF RFC 4293 8 Host
C-VLAN Component of a VLAN Bridge
IEEE Std. 802.1Q
9Switch
S-VLAN Component of a VLAN Bridge
IEEE Std. 802.1Q
10 Switch
Two-port MAC Relay (TPMR) IEEE Std.
802.1Q
11 Ignore
Reserved 12-16 Ignore
LLDP Capabilities Mapping to Smartport Type (Continued)
Capability Name LLDP Bit Smartport Type