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VXLAN
Virtual Extensible LAN (VXLAN) is a network virtualization technology that attempts to address the scalability problems associated with large cloud computing deployments. It uses a VLAN-like encapsulation technique to encapsulate OSI layer 2 Ethernet frames within layer 4 UDP datagrams, using 4789 as the default IANA-assigned destination UDP port number. VXLAN endpoints, which terminate VXLAN tunnels and may be either virtual or physical switch ports, are known as VXLAN tunnel endpoints (VTEPs). VXLAN is an evolution of efforts to standardize on an overlay encapsulation protocol. Compared to VLAN which provides limited number of layer-2 VLANs (typically using 12-bit VLAN ID), VXLAN increases scalability up to 16 million logical networks (with 24-bit VNID) and allows for layer-2 adjacency across IP networks. Multicast or unicast with head-end replication (HER) is used to flood Broadcast, unknown-unicast and multicast traffic. The VXLAN specification was originally created by V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadcast, Unknown-unicast And Multicast Traffic
Broadcast, unknown-unicast and multicast traffic (BUM traffic) is network traffic transmitted using one of three methods of sending data link layer network traffic to a destination of which the sender does not know the network address. This is achieved by sending the network traffic to multiple destinations on an Ethernet network. As a concept related to computer networking, it includes three types of Ethernet modes: Broadcasting (networking), broadcast, unicast and multicast Ethernet. BUM traffic refers to that kind of network traffic that will be forwarded to multiple destinations or that cannot be addressed to the intended destination only. Overview Broadcasting (networking), Broadcast traffic is used to transmit a message to any reachable destination in the network without the need to know any information about the receiving party. When broadcast traffic is received by a network switch it is replicated to all Port (computer networking), ports within the respective VLAN ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arista Networks
Arista Networks (formerly Arastra) is an American computer networking company headquartered in Santa Clara, California. The company designs and sells multilayer network switches to deliver software-defined networking (SDN) for large datacenter, cloud computing, high-performance computing, and high-frequency trading environments. These products include 10/25/ 40/50/100 Gigabit Ethernet low- latency cut-through switches, including the 7124SX, which remained the fastest switch using SFP+ optics through September 2012 with its sub-500 nanosecond (ns) latency, and the 7500 series, Arista's modular 10G/40G/ 100Gbit/s switch. Arista's Linux-based network operating system, Extensible Operating System (EOS), runs on all Arista products. Corporate history In 1982, Andy Bechtolsheim cofounded Sun Microsystems, and was its chief hardware designer. In 1995, David Cheriton cofounded Granite Systems with Bechtolsheim, a company that developed Gigabit Ethernet products, which w ... [...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 simp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Virtualization
In computing, network virtualization is the process of combining hardware and software network resources and network functionality into a single, software-based administrative entity, a virtual network. Network virtualization involves platform virtualization, often combined with resource virtualization. Network virtualization is categorized as either external virtualization, combining many networks or parts of networks into a virtual unit, or internal virtualization, providing network-like functionality to software containers on a single network server. In software testing, software developers use network virtualization to test software which are under development in a simulation of the network environments in which the software is intended to operate. As a component of application performance engineering, network virtualization enables developers to emulate connections between applications, services, dependencies, and end users in a test environment without having to physically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ericsson
(lit. "Telephone Stock Company of LM Ericsson"), commonly known as Ericsson, is a Swedish multinational networking and telecommunications company headquartered in Stockholm. The company sells infrastructure, software, and services in information and communications technology for telecommunications service providers and enterprises, including, among others, 3G, 4G, and 5G equipment, and Internet Protocol (IP) and optical transport systems. The company employs around 100,000 people and operates in more than 180 countries. Ericsson has over 57,000 granted patents. Ericsson has been a major contributor to the development of the telecommunications industry and is one of the leaders in 5G. The company was founded in 1876 by Lars Magnus Ericsson and is jointly controlled by the Wallenberg family through its holding company Investor AB, and the universal bank Handelsbanken through its investment company Industrivärden. The Wallenbergs and the Handelsbanken sphere acquired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pica8
Pica8, Inc. is a computer networking company headquartered in Palo Alto, California, United States. Pica8 is a vendor of open-standards-based operating systems on white box network switches delivering software-defined networking (SDN) solutions for datacenter and cloud computing environments and traditional L2/L3 solutions for large enterprise customers. The company's products include a Linux-based L2/L3 and OpenFlow-supporting network operating system, PicOS, which is shipped as standalone software that can be loaded onto a range of 1/ 10/ 40/100 Gigabit Ethernet switches based on commoditized ("white box") switches purchased from original design manufacturers (ODMs). The company's approach is to combine commodity network hardware (from manufacturers like Accton, Foxconn, Quanta) with Debian Linux, L2/L3 protocol stacks, a full enterprise feature set, OpenFlow controller and Open vSwitch (OVS) to create both a more "democratic" SDN solutions with competitive price compared to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumulus Networks
Cumulus Networks was a computer software company headquartered in Mountain View, California, USA. The company designed and sold a Linux operating system for industry standard network switches, along with management software, for large datacenter, cloud computing, and enterprise environments. In May 2020, American semiconductor manufacturer Nvidia announced it was acquiring Cumulus. Post acquisition the company was absorbed into Nvidia's networking business unit, along with Mellanox. Nvidia still offers Cumulus Linux. Background Cumulus Networks was founded by JR Rivers and Nolan Leake in 2010. The company raised a first round of seed funding in 2012. Cumulus Networks emerged publicly in June 2013 after previously operating in stealth mode. The company is backed by Andreessen Horowitz, Battery Ventures, Sequoia Capital, Peter Wagner and 4 of the 5 original VMware founders. In 2014 Dell began offering the option of the Cumulus Linux network OS on Dell's switches. In 2015, H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dell EMC
Dell EMC (EMC Corporation until 2016) is an American multinational corporation headquartered in Hopkinton, Massachusetts and Round Rock, Texas, United States. Dell EMC sells data storage, information security, virtualization, analytics, cloud computing and other products and services that enable organizations to store, manage, protect, and analyze data. Dell EMC's target markets include large companies and small- and medium-sized businesses across various vertical markets. The company's stock (as EMC Corporation) was added to the New York Stock Exchange on April 6, 1986, and was also listed on the S&P 500 index. EMC was acquired by Dell in 2016; at that time, Forbes noted EMC's "focus on developing and selling data storage and data management hardware and software and convincing its customers to buy its products independent of their other IT buying decisions" based on "best-of-breed." It was later renamed to Dell EMC. Dell uses the EMC name with some of its products. Prior to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FreeBSD
FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix. The first version of FreeBSD was released in 1993. In 2005, FreeBSD was the most popular open-source BSD operating system, accounting for more than three-quarters of all installed and permissively licensed BSD systems. FreeBSD has similarities with Linux, with two major differences in scope and licensing: FreeBSD maintains a complete system, i.e. the project delivers a kernel, device drivers, userland utilities, and documentation, as opposed to Linux only delivering a kernel and drivers, and relying on third-parties for system software; FreeBSD source code is generally released under a permissive BSD license, as opposed to the copyleft GPL used by Linux. The FreeBSD project includes a security team overseeing all software shipped in the base distribution. A wide range of additional third-party applications may be i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mellanox
Mellanox Technologies Ltd. ( he, מלאנוקס טכנולוגיות בע"מ) was an Israeli-American multinational supplier of computer networking products based on InfiniBand and Ethernet technology. Mellanox offered adapters, switches, software, cables and silicon for markets including high-performance computing, data centers, cloud computing, computer data storage and financial services. On March 11, 2019, Nvidia announced its intent to acquire the company for $6.9 billion. Other companies willing to acquire Mellanox were Intel, Xilinx and Microsoft. The deal closed on April 27, 2020, with approval from the EU, U.S. and Chinese antitrust authorities. The company was integrated into Nvidia's networking division in 2020 and Nvidia stopped using the brand name "Mellanox" for its new networking products. History 1999–2009 Mellanox was founded in May 1999 by former Israeli executives of Intel Corporation and Galileo Technology (which was acquired by Marvell Technolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadcom
Broadcom Inc. is an American designer, developer, manufacturer and global supplier of a wide range of semiconductor and infrastructure software products. Broadcom's product offerings serve the data center, networking, software, broadband, wireless, and storage and industrial markets. Tan Hock Eng is the company's president and CEO. The company is headquartered in San Jose, California. Avago Technologies Limited took the Broadcom part of the Broadcom Corporation name after acquiring it in January 2016. The ticker symbol AVGO that represented old Avago now represents the new merged entity. The Broadcom Corporation ticker symbol BRCM was retired. Broadcom has a long history of corporate transactions (or attempted transactions) with other prominent corporations mainly in the high-technology space. In October 2019, the European Union issued an interim antitrust order against Broadcom concerning anticompetitive business practices which allegedly violate European Union competition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenBSD
OpenBSD is a security-focused, free and open-source, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created OpenBSD in 1995 by forking NetBSD 1.0. According to the website, the OpenBSD project emphasizes "portability, standardization, correctness, proactive security and integrated cryptography." The OpenBSD project maintains portable versions of many subsystems as packages for other operating systems. Because of the project's preferred BSD license, many components are reused in proprietary and corporate-sponsored software projects. The firewall code in Apple's macOS is based on OpenBSD's PF firewall code, Android's Bionic C standard library is based on OpenBSD code, LLVM uses OpenBSD's regular expression library, and Windows 10 uses OpenSSH (OpenBSD Secure Shell) with LibreSSL. The word "open" in the name OpenBSD refers to the availability of the operating system source code on the Internet, although the word "open" in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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