Eh, I know a lot of folks who do enable CDP/LLDP for internal device to internal device links for discovery and troubleshooting. But they don't turn it on any c

Eh, I know a lot of folks who do enable CDP/LLDP for internal device to internal device links for discovery and troubleshooting. But they don't turn it on any customer/external facing interfaces (this enforcement thru offline config generation). So there can be a time and a place for it under the right conditions provided you understand the security risks (possibility of someone plugging something on an internal link, changing the router config incorrectly).