i've installed switch SF300 48 ports for IP phone environtment, i configured it as guide, if i attach ip phone it works normally,
but when i plug laptop to switch port, it cannot connect to anywhere, then i tried to change native vlan for smartport when detect desktop, but still same problem, i look into smartport properties, there is no desktop detection feature (pic attached)
Please let me know the running-configuration of your switch and also can i know what is the OEM(original equiptment manufacturer) of your desktop which you are trying to connect and firmware version of the switch. under administration -->discover LLDP --> LLDPneighbour information were you able to see Desktop connected, If you try disbaling the smart ports and re-configuring the switch also fix the issue but if you still want to configure the switch with smart ports enabled then please attach screen shots of your port configuration settings and running config.
thanks for your help, i attached the sh run config in the switch also LLDPneigh info, i reproduce the problem use port number 19 which i connect to my laptop (Lenovo). i look into LLDP neigh info, but i only see Gi1 as trunk to another switch, i don't see any port which Phani asked.
The way the switch learns the connected device is through a dynamic discovery protocol such as CDP (Cisco Discovery Protocol) or LLDP (Link Layer Discovery Protocol). That's how it is learning the attached phones. Unless you specifically installed an app on your laptop which is sending out CDP or LLDP discovery messages, it is not making itself known to the network. That's why the switch does not "see" the laptop.
Introduction:Topology Diagram:Configuration Overview:Related
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