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31 relations: Cisco Discovery Protocol, Data center bridging, Differentiated services, Enhanced 9-1-1, Ethernet frame, Ethernet over twisted pair, EtherType, Foundry Discovery Protocol, Frame check sequence, IEEE 802, IEEE 802.1D, IEEE 802.1Q, Internet protocol suite, Link aggregation, Link layer, Link Layer Topology Discovery, MAC address, Management information base, Multicast address, Nortel Discovery Protocol, OpenLLDP, PHY (chip), Plug and play, Power over Ethernet, Proprietary protocol, Simple Network Management Protocol, Syncword, Telecommunications Industry Association, Type-length-value, Virtual LAN, Voice over IP.
Cisco Discovery Protocol
Cisco Discovery Protocol (CDP) is a proprietary Data Link Layer protocol developed by Cisco Systems.
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Data center bridging
Data center bridging (DCB) is a set of enhancements to the Ethernet local area network communication protocol for use in data center environments, in particular for use with clustering and storage area networks.
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Differentiated services
Differentiated services or DiffServ is a computer networking architecture that specifies a simple and scalable mechanism for classifying and managing network traffic and providing quality of service (QoS) on modern IP networks.
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Enhanced 9-1-1
Enhanced 911, E-911 or E911 is a system used in North America to automatically provide to dispatchers the location of callers to 911, the universal emergency telephone number in the region.
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Ethernet frame
A data unit on an Ethernet link transports an Ethernet frame as its payload.
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Ethernet over twisted pair
Ethernet over twisted pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network.
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EtherType
EtherType is a two-octet field in an Ethernet frame.
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Foundry Discovery Protocol
The Foundry Discovery Protocol (FDP) is a proprietary data link layer protocol.
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Frame check sequence
A frame check sequence (FCS) refers to the extra error-detecting code added to a frame in a communications protocol.
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IEEE 802
IEEE 802 is a family of IEEE standards dealing with local area networks and metropolitan area networks.
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IEEE 802.1D
802.1D is the IEEE MAC Bridges standard which includes Bridging, Spanning Tree and others.
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IEEE 802.1Q
802.1Q, often referred to as Dot1q, is the networking standard that supports virtual LANs (VLANs) on an IEEE 802.3 Ethernet network.
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Internet protocol suite
The Internet protocol suite is the conceptual model and set of communications protocols used on the Internet and similar computer networks.
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Link aggregation
In computer networking, the term link aggregation applies to various methods of combining (aggregating) multiple network connections in parallel in order to increase throughput beyond what a single connection could sustain, and to provide redundancy in case one of the links should fail.
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Link layer
In computer networking, the link layer is the lowest layer in the Internet Protocol Suite, the networking architecture of the Internet.
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Link Layer Topology Discovery
Link Layer Topology Discovery (LLTD) is a proprietary link layer protocol for network topology discovery and quality of service diagnostics.
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MAC address
A media access control address (MAC address) of a device is a unique identifier assigned to a network interface controller (NIC) for communications at the data link layer of a network segment.
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Management information base
A management information base (MIB) is a database used for managing the entities in a communication network.
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Multicast address
A multicast address is a logical identifier for a group of hosts in a computer network that are available to process datagrams or frames intended to be multicast for a designated network service.
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Nortel Discovery Protocol
The Nortel Discovery Protocol (NDP) is a Data Link Layer (OSI Layer 2) network protocol for discovery of Nortel networking devices and certain products from Avaya and Ciena.
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OpenLLDP
The OpenLLDP project aims to bring a comprehensive implementation of the IEEE standard 802.1AB Link Layer Discovery Protocol.
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PHY (chip)
PHY is an abbreviation for the physical layer of the OSI model and refers to the circuitry required to implement physical layer functions.
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Plug and play
In computing, a plug and play (PnP) device or computer bus, is one with a specification that facilitates the discovery of a hardware component in a system without the need for physical device configuration or user intervention in resolving resource conflicts.
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Power over Ethernet
Power over Ethernet or PoE describes any of several standard or ad-hoc systems which pass electric power along with data on twisted pair Ethernet cabling.
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Proprietary protocol
In telecommunications, a proprietary protocol is a communications protocol owned by a single organization or individual.
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Simple Network Management Protocol
Simple Network Management Protocol (SNMP) is an Internet Standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device behavior.
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Syncword
In computer networks, a syncword, sync character, sync sequence or preamble is used to synchronize a data transmission by indicating the end of header information and the start of data.
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Telecommunications Industry Association
The Telecommunications Industry Association (TIA) is accredited by the American National Standards Institute (ANSI) to develop voluntary, consensus-based industry standards for a wide variety of Information and Communication Technologies (ICT) products, and currently represents nearly 400 companies.
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Type-length-value
Within data communication protocols, TLV (type-length-value or tag-length-value) is an encoding scheme used for optional information element in a certain protocol.
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Virtual LAN
A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2).
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Voice over IP
Voice over Internet Protocol (also voice over IP, VoIP or IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.
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Redirects here:
802.1AB, Data Center Bridging Capabilities Exchange Protocol, Data Center Bridging Exchange Protocol, IEEE 802.1AB, IEEE 802.1AB-2005, IEEE 802.1AB-2009, IEEE 802.1AB-2016, IEEE 802.1ab, LLDP, LLDP-MED, Link Layer Discovery Protocol - Media Endpoint Discovery, Link Layer Discovery Protocol-Media Endpoint Discovery.
References
[1] https://en.wikipedia.org/wiki/Link_Layer_Discovery_Protocol
