Hello, I try to configure LLDP in a cisco 3750 but it doesnt know this protocol. I try enter show or configure commands and I know for sure that this L3 Cisco supporte lldp for cisco website. My ios version is 12.2(25)
Cisco implemented LLDP in their last packet tracer version. This simulator, now freely downloadable,for everyone, will help you to understand the concepts. Have a look on http://www.packettracernetwork.com/tutorials/pt7-lldp-configuration.html for the IoS LLDP commands to configure your router.