Configuring for Network Management Applications
LLDP (Link-Layer Discovery Protocol)
Configuring Per-Port LLDP Transmit and Receive Modes
These commands control LLDP advertisement traffic inbound and outbound
on active ports.
Syntax lldp admin-status < port-list > < txonly | rxonly | tx_rx | disable >
With LLDP enabled on the switch in the default LLDP
configuration, each port is configured to transmit and receive
LLDP packets. These options enable you to control which ports
participate in LLDP traffic and whether the participating
ports allow LLDP traffic in only one direction or in both
directions.
txonly: Configures the specified port(s) to transmit LLDP pack-
ets, but block inbound LLDP packets from neighbor devices.
rxonly: Configures the specified port(s) to receive LLDP packets
from neighbors, but block outbound packets to neighbors.
tx_rx: Configures the specified port(s) to both transmit and
receive LLDP packets. (This is the default setting.)
disable: Disables LLDP packet transmit and receive on the
specified port(s).
Configuring LLDP Per-Port Advertisement Content
In the default LLDP configuration, outbound advertisements from each port
on the switch include both the mandatory and the optional data listed in the
next two subsections.
Mandatory Data. An active LLDP port on the switch always includes the
mandatory data in its outbound advertisements. LLDP collects the mandatory
data, and, except for the Remote Management Address, you cannot use LLDP
commands to configure the actual data.
â– Chassis Type (TLV subelement)
â– Chassis ID (TLV)
â– Port Type (TLV subelement)
â– Port ID (TLV)
â– Remote Management Address (TLV; actual IP address is a subelement that
can be a default address or a configured address)
Configuring a Remote Management Address for Outbound LLDP
Advertisements. This is an optional command you can use to include a
specific IP address in the outbound LLDP advertisements for specific ports.
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