Hirschmann GREYHOUND GRS1020, Справочное руководство

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Diagnostics
[ Diagnostics > LLDP > Topology Discovery ]
296
RM GUI GRS
Release 8.0 09/2019
6.5.2 LLDP Topology Discovery
[ Diagnostics > LLDP > Topology Discovery ]
Devices in networks send notifications in the form of packets which are also known as "LLDPDU"
(LLDP data units). The data that is sent and received via LLDPDU are useful for many reasons.
Thus the device detects which devices in the network are neighbors and via which ports they are
connected.
The dialog lets you display the network and to detect the connected devices along with their specific
features.
The dialog contains the following tabs:

[LLDP]

[LLDP-MED]
[ LLDP ]
This tab displays the collected LLDP information for the neighboring devices. This information
enables a network management station to map the structure of your network.
When devices both with and without an active topology discovery function are connected to a port,
the topology table hides the devices without active topology discovery.
When only devices without active topology discovery are connected to a port, the table contains
one line for this port to represent every device. This line contains the number of connected devices.
The Forwarding Database (FDB) address table contains MAC addresses of devices that the
topology table hides for the sake of clarity.
When you use 1 port to connect several devices, for example via a hub, the table contains 1 line
for each connected device.
Table
Port
Displays the port number.
Neighbor identifier
Displays the chassis ID of the neighboring device. This can be the basis MAC address of the
neighboring device, for example.
FDB
Displays whether or not the connected device has active LLDP support.