Enabling The Lldp Function - Huawei espace 7810 Administrator's Manual

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2.3.4 Enabling the LLDP Function

Function Description
Link Layer Discovery Protocol (LLDP) organizes local device information into
type-length-value (TLV) and encapsulates the information into Link Layer Discovery Protocol
Data Unit (LLDPDU). LLDP sends LLDPDU to directly-connected neighbors and saves
LLDPDU from neighbors in Management Information Base (MIB). LLDP enables a device to
store and manage information about the device itself and directly-connected neighbors for the
network management system to check the link communication status.
LLDP is used on the VoIP terminals in the following scenarios:


Function Implementation
Figure 2-9
Issue 01 (2011-12-31)
Parameters
_PRIORITY
LLDP packet receiving
After an administrator configures LLDP broadcast information such as VLAN ID and
QoS on a switch that supports LLDP, an IP phone automatically updates network
information such as VLAN ID and QoS based on the received LLDP information after
being powered on.
Every time an IP phone moves on a network or a new VLAN is assigned to the switch
port, the IP phone automatically checks its home VLAN and modifies local VLAN
settings.
LLDP packet sending
Emergency call: LLDP information contains address information. When an emergency
occurs, the position is quickly located based on the address information.
System maintenance: LLDP provides accurate network mapping, traffic data, and other
information for administrators to locate network faults.
shows the flowchart for implementing LLDP.
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2 Single IP Phone Configuration
Value Range Description
PC port.
Default value: 0
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