
Operating Manual
MAN_EL-1000-4GM
Version:
2.6.1
/ 01.02.2021
Authorized by:
T.W.
Page 36 of 77
Figure 83: Syslog messages
5.4.5
Link Layer Discovery protocol
–
topology
The Link Layer Discovery protocol (menu see Figure 94) is a manufacturer-independent Layer-2
protocol, which is defined as per the IEEE-802.1AB[1] standard and offers the option to exchange
information between neighboring devices. On every device that supports the LLDP, a software
component operates as the so-called LLDP agent. This sends information in periodic intervals
concerning the actual status and receives information from neighboring devices permanently.
Because this occurs independently of each other, the LLDP is also referred to as a one-way protocol.
Before sending the information, no connection to the other devices is established.
The following information is compiled by the LLDP and sent:
System name
System description
Port description