Item

 

Description

 

 

Set the encapsulation for LLDP frames:

 

 

• ETHII—Encapsulates outgoing LLDP frames in Ethernet II frames

 

 

and processes an incoming LLDP frame only if its encapsulation

 

Encapsulation Format

is Ethernet II.

 

• SNAP—Encapsulates outgoing LLDP frames in Ethernet II frames

 

 

 

 

and processes an incoming LLDP frame only if its encapsulation

 

 

is Ethernet II.

 

 

LLDP-CDP PDUs use only SNAP encapsulation.

 

 

Set the CDP compatibility of LLDP:

 

 

• Disable—Neither sends nor receives CDP frames.

 

CDP Operating Mode

• TxRx—Sends and receives CDP frames

 

To enable LLDP to be compatible with CDP on the port, you must

 

 

 

 

enable CDP compatibility on the Global Setup tab and set the CDP

 

 

operating mode on the port to TxRx.

 

 

Enable LLDP polling and set the polling interval.

 

 

If no polling interval is set, LLDP polling is disabled.

 

LLDP Polling Interval

With the polling mechanism, LLDP periodically detects local

 

 

 

 

configuration changes. If a configuration change is detected, an

 

 

LLDP frame is sent to inform the LLDP neighbors of the change.

 

 

 

 

 

Set the enable status of the LLDP trapping function on the port or

 

 

ports.

 

LLDP Trapping

LLDP trapping is used to report to the network management station

 

critical events such as new neighbor devices detected and link

 

 

failures.

 

 

To avoid excessive traps from being sent when topology is instable,

 

 

tune the minimum trap transmission interval on the Global Setup tab.

 

Port Description

Select the box to include the port description TLV in transmitted LLDP

 

frames.

 

 

 

 

 

 

System Capabilities

Select the box to include the system capabilities TLV in transmitted

 

LLDP frames.

 

 

 

 

 

 

System Description

Select the box to include the system description TLV in transmitted

 

LLDP frames.

 

 

Base TLV

 

 

System Name

Select the box to include the system name TLV in transmitted LLDP

Settings

frames.

 

 

 

 

 

 

 

Select the box to include the management address TLV in

 

 

transmitted LLDP frames and, in addition, set the management

 

Management Address

address and its format (a numeric or character string in the TLV).

 

If no management address is specified, the main IP address of the

 

 

 

 

lowest VLAN carried on the port is used. If no main IP address is

 

 

assigned to the VLAN, 127.0.0.1 is used.

 

 

 

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