Link Layer Discovery Protocol (Lldp) - Alcatel-Lucent 7750 SR OS Interface Configuration Manual

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Link Layer Discovery Protocol (LLDP)

The IEEE 802.1ab Link Layer Discovery Protocol (LLDP) standard defines protocol and
management elements that are suitable for advertising information to stations attached to the same
IEEE 802 LAN (emulation) for the purpose of populating physical or logical topology and device
discovery management information databases. The protocol facilitates the identification of stations
connected by IEEE 802 LANs/MANs, their points of interconnection, and access points for
management protocols.
Note that LAN emulation and logical topology wording is applicable to customer bridge scenarios
(enterprise/carrier of carrier) connected to a provider network offering a transparent LAN
emulation service to their customers. It helps the customer bridges detect misconnection by an
intermediate provider by offering a view of the customer topology where the provider service is
represented as a LAN interconnecting these customer bridges.
The IEEE 802.1ab standard defines a protocol that:
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Advertises connectivity and management information about the local station to adjacent
stations on the same IEEE 802 LAN.
Receives network management information from adjacent stations on the same IEEE 802
LAN.
Operates with all IEEE 802 access protocols and network media.
Establishes a network management information schema and object definitions that are
suitable for storing connection information about adjacent stations.
Provides compatibility with a number of MIBs as depicted in
7750 SR OS Interface Configuration Guide
Figure 19.