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36. LLDP Commands
36.7. config lldp ports
Description
Use this command to configure LLDP options by port. Enable or disable each port for
sending change notification to configured SNMP trap receiver(s) if an LLDP data
change is detected in an advertisement received on the port from an LLDP neighbor.
The definition of change includes new available information, information timeout,
information update. And the changed type includes any data update /insert/remove.
The admin status options enable to control which ports participate in LLDP traffic and
whether the participating ports allow LLDP traffic in only one direction or in both
directions.
The config management address command specifies whether system's IP address
needs to be advertised from the specified port. For layer 3 devices, each managed
address can be individually specified. The management addresses that are added in
the list will be advertised in the LLDP from the specified interface, associated with
each management address. The interface for that management address will be also
advertised in the if-index form.
An active LLDP port on the Switching Hub always includes the mandatory data in its
outbound advertisements. And there are four optional data that can be configured
for an individual port or group of ports to exclude one or more of these data types
from outbound LLDP advertisements. The mandatory data type include four basic
types of information (end of LLDPDU TLV, chassis ID TLV, port ID TLV, and Time to
Live TLV). The mandatory type cannot be disabled. There are also four data types
which can be optionally selected. They are port_description, system_name,
system_description, and system_capability.
Configure an individual port or group of ports to exclude one or more of IEEE 802.1
Organizationally port vlan ID TLV data types from outbound LLDP advertisements.
Configure an individual port or group of ports to exclude one or more of IEEE 802.1
Organizationally port and protocol VLAN ID TLV data types from outbound LLDP
advertisements.
Configure an individual port or group of ports to exclude one or more of IEEE 802.1
Organizationally VLAN name TLV data types from outbound LLDP advertisements.
Configure an individual port or group of ports to exclude one or more of IEEE 802.1
Organizationally
protocol
identity
TLV
data
types
from
outbound
LLDP
advertisements. This TLV optional data type indicates whether the corresponding
Local System's Protocol Identity instance will be transmitted on the port. The Protocol
Identity TLV provides a way for stations to advertise protocols that are important to
the operation of the network. Spanning Tree Protocol, the Link Aggregation Control
Protocol, and numerous vendor proprietary variations are responsible for maintaining
the topology and connectivity of the network. If EAPOL, GVRP, STP (including MSTP),
and LACP protocol identity are enabled on this port and it is enabled to be advertised,
then this protocol identity will be advertised.
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