Atop EH3408ls, User Manual

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Industrial Managed
Ethernet Switch
User Manual
Configuring with a Web
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2.4.4 LLDP feature
L ink L ayer D iscovery P rotocol ( LLDP ) is an IEEE802 . 1ab standard OSI layer-2 protocol. LLDP allows Ethernet network
devices to advertise details about themselves, such as device configuration, capabilities and identification. The
advertise packets are periodically sent to directly connected devices on the network that are also using LLDP or so
called its neighbors. LLDP is a
“ one hop ” unidirectional protocol in an advertising mode.
LLDP information can only be sent to and received by devices, no solicit information or state changes between nodes .
The device has a choice to turn on and off sending and receiving function independently. Advertised information is
not forward on to other devices on the network. LLDP is designed to be managed with SNMP. Applications that use
this protocol include topology discovery, inventory management, emergency services, VLAN assignment, and inline
power supply.
LLDP feature under Diagnostic function contains LLDP Neighbor Info Table as shown in Figure 2.25. This webpage
allows the user to view the LLDP
’ s neighbor information of the managed switch. The Neighbor Information table
contains Port ID, Chassis ID, Remote Port ID, Port Description, System Name, System Description, and Management
Address on each Port of the managed switch. The user can choose how many entries to be displayed in the table by
selecting the number from the Show’s drop -down list. Additionally, the user can find relevant log entries through the
Search box on the top left of the table. The users can also click on the Refresh button to get the latest Neighbor
Information table. Table 2.8 summarizes the description of each column in LLDP neighbor info table.
Figure 2.25 LLDP Feature
Table 2.8 Description of Columns in LLDP Neighbor Info Table
Label Description
Local Port Indicates particular port number of the switch.
Chassis ID Indicates the identity of the neighbor of this particular port.
Remote Port ID Indicates the port number of this Neighbor.
Port Description Shows a textual description of the neighbor port.
System Name Indicates the device name/hostname of the Neighbor.
System Description Shows a more detailed description of the neighbor ’ s device.
Management Address Indicates neighbor ’ s management IP address.