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IEEE 802.1
IEEE 802.1 is a working group of the IEEE 802 project of the IEEE Standards Association. It is concerned with: * 802 LAN/MAN architecture * internetworking among 802 LANs, MANs and wide area networks * 802 Link Security * 802 overall network management Network management is the process of administering and managing computer networks. Services provided by this discipline include fault analysis, performance management, provisioning of networks and maintaining quality of service. Network managem ... * protocol layers above the MAC and LLC layers LAN/MAN bridging and management. Covers management and the lower sub-layers of OSI Layer 2, IEEE 802.1 standards The IEEE 802 LAN/MAN Standards Committee makes current standards freely available, after a six-month delay, through theiGet IEEE 802.1 program Other recent 802.1 standards are available through thIEEE for a fee References External links 802.1 Working group web site802.1 WG - Project Authorization Requests {{DEFAULTSOR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Working Group
A working group, or working party, is a group of experts working together to achieve specified goals. The groups are domain-specific and focus on discussion or activity around a specific subject area. The term can sometimes refer to an interdisciplinary collaboration of researchers working on new activities that would be difficult to sustain under traditional funding mechanisms (e.g., federal agencies). The lifespan of a working group can last anywhere between a few months and several years. Such groups have the tendency to develop a ''quasi-permanent existence'' when the assigned task is accomplished; hence the need to disband (or phase out) the working group when it has achieved its goal(s). A working group's performance is made up of the individual results of all its individual members. A team's performance is made up of both individual results and collective results. In large organisations, working groups are prevalent, and the focus is always on individual goals, performan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VLAN
A virtual local area network (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2).IEEE 802.1Q-2011, ''1.4 VLAN aims and benefits'' In this context, virtual, refers to a physical object recreated and altered by additional logic, within the local area network. VLANs work by applying tags to network frames and handling these tags in networking systems – creating the appearance and functionality of network traffic that is physically on a single network but acts as if it is split between separate networks. In this way, VLANs can keep network applications separate despite being connected to the same physical network, and without requiring multiple sets of cabling and networking devices to be deployed. VLANs allow network administrators to group hosts together even if the hosts are not directly connected to the same network switch. Because VLAN membership can be configured through software, this can greatly simplif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Video Bridging
Audio Video Bridging (AVB) is a common name for the set of technical standards which provide improved synchronization, low-latency, and reliability for switched Ethernet networks. AVB embodies the following technologies and standards: * IEEE 802.1AS-2011: Timing and Synchronization for Time-Sensitive Applications (gPTP); * IEEE 802.1Qav-2009: Forwarding and Queuing for Time-Sensitive Streams (FQTSS); * IEEE 802.1Qat-2010: Stream Reservation Protocol (SRP); * IEEE 802.1BA-2011: Audio Video Bridging (AVB) Systems; * IEEE 1722-2011 Layer 2 Transport Protocol for Time Sensitive Applications (AV Transport Protocol, AVTP); and * IEEE 1722.1-2013 Device Discovery, Enumeration, Connection Management and Control Protocol (AVDECC). IEEE 802.1Qat and 802.1Qav amendments have been incorporated to the base IEEE 802.1Q-2011 document, which specifies the operation of Media Access Control (MAC) Bridges and Virtual Bridged Local Area Networks. AVB was initially developed by the Institute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Link Layer Discovery Protocol
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities, and neighbors on a local area network based on IEEE 802 technology, principally wired Ethernet. The protocol is formally referred to by the IEEE as ''Station and Media Access Control Connectivity Discovery'' specified in IEEE 802.1AB with additional support in IEEE 802.3 section 6 clause 79. LLDP performs functions similar to several proprietary protocols, such as Cisco Discovery Protocol, Foundry Discovery Protocol, Nortel Discovery Protocol and Link Layer Topology Discovery. Information gathered Information gathered with LLDP can be stored in the device management information base (MIB) and queried with the Simple Network Management Protocol (SNMP) as specified in RFC 2922. The topology of an LLDP-enabled network can be discovered by ''crawling'' the hosts and querying this database. Information that may be retrieved include: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YANG
Yang may refer to: * Yang, in yin and yang, one half of the two symbolic polarities in Chinese philosophy * Korean yang, former unit of currency of Korea from 1892 to 1902 * YANG, a data modeling language for the NETCONF network configuration protocol Geography * Yang County, in Shaanxi, China * Yangzhou (ancient China), also known as Yang Prefecture * Yang (state), ancient Chinese state * Yang, Iran, a village in Razavi Khorasan Province * Yang River (other) People * Yang, one of the names for the Karen people in the Thai language *Yang di-Pertuan Agong, the constitutional monarch of Malaysia * Yang (surname), Chinese surname * Yang (Korean surname) Fictional characters * Cristina Yang, on the TV show ''Grey's Anatomy'' * Yang, from the show ''Yin Yang Yo!'' * Yang, Experiment 502 in '' Lilo and Stitch: The Series'' * Yang Fang Leiden, from ''Final Fantasy IV'' * Yang Lee, in the ''Street Fighter III'' series of videogames * Mr. Yang, the Yin Yang serial killer in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Datacenter 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. Motivation Ethernet is the primary network protocol in data centers for computer-to-computer communications. However, Ethernet is designed to be a best-effort network that may experience packet loss when the network or devices are busy. In IP networks, transport reliability under the end-to-end principle is the responsibility of the transport protocols, such as the Transmission Control Protocol (TCP). One area of evolution for Ethernet is to add extensions to the existing protocol suite to provide reliability without requiring the complexity of TCP. With the move to 10 Gbit/s and faster transmission rates, there is also a desire for finer granularity in control of bandwidth allocation and to ensure it is used more effectively. These enhancements are particularly importa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stream Reservation Protocol
Stream Reservation Protocol (SRP) is an enhancement to Ethernet that implements admission control. In September 2010 SRP was standardized as IEEE 802.1Qat which has subsequently been incorporated into IEEE 802.1Q, IEEE 802.1Q-2011. SRP defines the concept of Streaming media, streams at layer 2 of the OSI model. Also provided is a mechanism for end-to-end management of the streams' resources, to guarantee quality of service (QoS). SRP is part of the IEEE Audio Video Bridging (AVB) and Time-Sensitive Networking (TSN) standards. The SRP technical group started work in September 2006 and finished meetings in 2009. Description SRP registers a stream and reserves the resources required through the entire path taken by the stream, based on the bandwidth requirement and the latency which are defined by a stream reservation traffic class. ''Listener'' (stream destination) and ''Talker'' (stream source) primitives are utilized. Listeners indicate what streams are to be received, and Talker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time-Sensitive Networking
Time-Sensitive Networking (TSN) is a set of standards under development by the Time-Sensitive Networking task group of the IEEE 802.1 working group. The TSN task group was formed in November 2012 by renaming the existing Audio Video Bridging Task Group and continuing its work. The name changed as a result of the extension of the working area of the standardization group. The standards define mechanisms for the time-sensitive transmission of data over deterministic Ethernet networks. The majority of projects define extensions to the IEEE 802.1Q Bridges and Bridged Networks, which describes Virtual LANs and network switches. These extensions in particular address the transmission of very low transmission latency and high availability. Applications include converged networks with real-time Audio/Video Streaming and real-time control streams which are used in automotive or industrial control facilities. Background Standard Information technology network equipment has no concept o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiple Registration Protocol
Multiple Registration Protocol (MRP), which replaced Generic Attribute Registration Protocol (GARP), is a generic registration framework defined by the IEEE 802.1ak amendment to the IEEE 802.1Q standard. MRP allows bridges, switches or other similar devices to register and de-register attribute values, such as VLAN identifiers and multicast group membership across a large local area network. MRP operates at the data link layer. History GARP was defined by the IEEE 802.1 working group to provide a generic framework allowing bridges (or other devices like switches) to register and de-register attribute values such as VLAN identifiers and multicast group membership. GARP defines the architecture, rules of operation, state machines and variables for the registration and de-registration of attribute values. GARP was used by two applications: GARP VLAN Registration Protocol (GVRP) for registering VLAN trunking between multilayer switches, and by the GARP Multicast Registration Protocol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spanning Tree Protocol
The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails. As the name suggests, STP creates a spanning tree that characterizes the relationship of nodes within a network of connected layer-2 bridges, and disables those links that are not part of the spanning tree, leaving a single active path between any two network nodes. STP is based on an algorithm that was invented by Radia Perlman while she was working for Digital Equipment Corporation. In 2001, the IEEE introduced Rapid Spanning Tree Protocol (RSTP) as 802.1w. RSTP provides significantly faster recovery in response to network changes or failures, introducing new convergence behaviors and bridge port roles to do this. RSTP was designed to be b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
