User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
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19.2
Configuring LLDP (CLI)
Link Layer Discovery Protocol (LLDP) is a vendor-neutral layer 2 protocol that can
be used by a network element attached to a specific LAN segment to advertise its
identity and capabilities and to receive identity and capacity information from
physically adjacent layer 2 peers. LLDP is a part of the IEEE 802.1AB
–
2005
standard that enables automatic network connectivity discovery by means of a
port identity information exchange between each port and its peer. Each port
periodically sends and also expects to receive frames called Link Layer Discovery
Protocol Data Units (LLDPDU). LLDPDUs contain information in TLV format about
port identity, such as MAC address and IP address.
LLDP is used to send notifications to the NMS, based on data of the local unit and
data gathered from peer systems. These notifications enable the NMS to build an
accurate network topology.
This section includes:
•
Configuring the General LLDP Parameters (CLI)
•
Displaying the General LLDP Parameters (CLI)
•
Configuring LLDP Port Parameters (CLI)
•
Displaying LLDP Port Parameters (CLI)
•
Displaying LLDP Local System Parameters (CLI)
•
Displaying the LLDP Remote System Parameters (CLI)
•
Displaying LLDP Statistics (CLI)
19.2.1
Configuring the General LLDP Parameters (CLI)
This section explains how to define the general LLDP parameters for the unit. For
instructions on defining port-specific parameters, see
To define the Transmit Interval, which is the interval at which LLDP frames are
transmitted, enter the following command in root view:
root> ethernet lldp tx-interval-set tx-interval <tx-interval>
The time-to-live (TTL) determines the length of time LLDP frames are retained by
the receiving device. The TTL is determined by multiplying the Transmit Interval by
the TTL Multiplier.
To define the TTL Multiplier, enter the following command in root view:
root> ethernet lldp tx-hold-multiplier-set hold-multiplier
<hold-multiplier>
To define the interval between transmission of LLDP notifications during normal
transmission periods, enter the following command in root view:
root> ethernet lldp notif-interval-set notif-interval <notif-
interval>