Siemens Industrial Ethernet Switches SCALANCE X-200 - Manual (Page 220)

Configuration / diagnostics using remote mechanisms
6.3 Configuration using Web Based Management (WBM) and Command Line Interface (CLI)
SCALANCE X-200
220
Operating Instructions, 12/2011, A5E00349864-19
The LLDP protocol is used to exchange information between neighboring devices. An IE
Switch X-200 sends LLDP frames to all ports at regular intervals. The LLDP frames received
from neighboring devices are not forwarded; only the information they contain about
neighboring devices is stored. This information can be read from a central location and used
to identify the network topology.
To structure a network logically, the sending and receipt of LLDP frames can be configured
per port.
Note
The LLDP protocol can be disabled in STEP 7 using the "End of topology discovery"
function.
Note
With the SCALANCE X202-2IRT and X204IRT with a product version lower than or equal to
003, the following port-specific sender addresses are used for LLDP frames:

Port 1: 08:00:06:9D:38:40
 Port 2: 08:00:06:9D:38:41
 Port 3: 08:00:06:9D:38:42
 Port 4: 08:00:06:9D:38:43
With all other X-200 IE switches, MAC addresses are used as the sender address for LLDP
frames that are both device and port-specific.
The MAC address for a specific port is formed by adding the index of this port to the MAC
address of the IE Switch X-200.