Lldp Configuration Options - HP ProCurve 6400cl Series Management And Configuration Manual

Configuring for Network Management Applications
LLDP (Link-Layer Discovery Protocol)
14-28

LLDP Configuration Options

Enable or Disable LLDP on the Switch. In the default configuration,
LLDP is globally enabled on the switch. To prevent transmission or receipt of
LLDP traffic, you can disable LLDP operation (page 14-37)
Change the Frequency of LLDP Packet Transmission to Neighbor
Devices. On a global basis, you can increase or decrease the frequency of
outbound LLDP advertisements (page 14-38).
Change the Time-To-Live for LLDP Packets Sent to Neighbors. On a
global basis, you can increase or decrease the time that the information in an
LLDP packet outbound from the switch will be maintained in a neighbor LLDP
device (page 14-38).
Transmit and Receive Mode. With LLDP enabled, the switch periodically
transmits an LLDP advertisement (packet) out each active port enabled for
outbound LLDP transmissions, and receives LLDP advertisements on each
active port enabled to receive LLDP traffic (page 14-41). Per-Port configura­
tion options include four modes:
Transmit and Receive (tx_rx): This is the default setting on all ports. It
■
enables a given port to both transmit and receive LLDP packets, and to
store the data from received (inbound) LLDP packets in the switch's MIB.
■ Transmit only (txonly): This setting enables a port to transmit LLDP
packets that can be read by LLDP neighbors. However, the port drops
inbound LLDP packets from LLDP neighbors without reading them. This
prevents the switch from learning about LLDP neighbors on that port.
Receive only (rxonly): This setting enables a port to receive and read LLDP
■
packets from LLDP neighbors, and to store the packet data in the switch's
MIB. However, the port does not transmit outbound LLDP packets. This
prevents LLDP neighbors from learning about the switch through that
port.
■ Disable (disable): This setting disables LLDP packet transmissions and
reception on a port. In this state, the switch does not use the port for either
learning about LLDP neighbors or informing LLDP neighbors of its pres­
ence.
SNMP Notification. You can enable the the switch to send a notification to
any configured SNMP trap receiver(s) when the switch detects a remote LLDP
data change on an LLDP-enabled port (page 14-40).