The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities,...

networking, the link layer is the lowest layer in the Internet protocol suite, the networking architecture of the Internet. The link layer is the group of...

The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers...

Inverse Neighbor Discovery (IND) protocol extension allows nodes to determine and advertise an IPv6 address corresponding to a given link-layer address, similar...

Cisco Discovery Protocol (CDP) is a proprietary data link layer protocol developed by Cisco Systems in 1994 by Keith McCloghrie and Dino Farinacci. It...

L2TP Layer 2 Tunneling Protocol LLDP Link Layer Discovery Protocol LLDP-MED Link Layer Discovery Protocol - Media Endpoint Discovery MAC Media Access Control...

Resolution Protocol (ARP) is a communication protocol for discovering the link layer address, such as a MAC address, associated with a internet layer address...

Link Layer Topology Discovery (LLTD) is a proprietary link layer protocol for network topology discovery and quality of service diagnostics. Microsoft...

Lightweight Service Discovery (LSD), for mobile ad hoc networks Link Layer Discovery Protocol (LLDP) standards-based neighbor discovery protocol similar to vendor-specific...

Ethernet switch announces this capability through the LLDP (Link Layer Discovery Protocol). When a device receives such an LLDP announcement on a network...

layers for a particular application forms a protocol stack. From lowest to highest, the layers are the link layer, containing communication methods for data...

In computer networking, Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol used to support virtual private networks (VPNs) or as part of the delivery...

used in the link layer (layer 2 in the OSI model), such as Ethernet multicast, and at the internet layer (layer 3 for OSI) for Internet Protocol Version 4...

The internet layer is a group of internetworking methods, protocols, and specifications in the Internet protocol suite that are used to transport network...

MTU discovery is used between endpoints, which makes it part of the Transport layer, instead of this layer. The following are examples of protocols operating...

used to indicate which protocol is encapsulated in the payload of the frame and is used at the receiving end by the data link layer to determine how the...

The Nortel Discovery Protocol (NDP) is a data link layer (OSI Layer 2) network protocol for discovery of Nortel networking devices and certain products...

The Simple Service Discovery Protocol (SSDP) is a network protocol based on the Internet protocol suite for advertisement and discovery of network services...

path MTU discovery, a technique called Packetization Layer Path MTU Discovery works without support from ICMP. For IPv4 packets, Path MTU Discovery works...

address (a layer 3 or network layer concept) is resolved with the Address Resolution Protocol for IPv4, or by Neighbor Discovery Protocol (IPv6) into...

The protocol was designed by David P. Reed in 1980 and formally defined in RFC 768. UDP is a simple message-oriented transport layer protocol that is...

The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production...

Data-Link Interface (ODI) are interfaces between the media (layer 2) and the network protocol (layer 3). The table below presents a list of OSI layers, the...

The Discovery and Basic Configuration Protocol (DCP) is a protocol definition within the PROFINET context. It is a link layer based protocol to configure...

network-layer protocol; this makes it a layer 3 protocol in the seven-layer OSI model. Based on the four-layer TCP/IP model, ICMP is an internet-layer protocol...

management for higher layer protocols. L2CAP is used to communicate over the host ACL link. Its connection is established after the ACL link has been set up...

Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network, such as the Internet. The...

from layer 2 switches. If Cisco Discovery Protocol, Link Layer Discovery Protocol, Foundry Discovery Protocol or SynOptics Network Management Protocol is...

Manhattan Project) Media Endpoint Discovery, an enhancement of the Ethernet data communications Link Layer Discovery Protocol Multi-Exit Discriminator, a network...

MTU at connect time, e.g. using Path MTU Discovery. MTUs apply to communications protocols and network layers. The MTU is specified in terms of bytes or...