Enable LLDP on a CPE Interface
To discover a switch or access point (AP) connected to an SRX Series Customer Premise Equipment (CPE), enable Link Layer Discovery Protocol (LLDP) on the CPE interface used.
LLDP allows networked devices to advertise capabilities, identity, and other information onto a LAN. LLDP-capable devices transmit information in type, length, and value (TLV) messages to neighbor devices.
If you are using a LAG or a reth interface to connect to a switch or an AP, you can enable LLDP on the interface when you create the interface (see Create LAG Interface and Create a RETH Interface)
To enable LLDP on a CPE interface: