Virtual Cluster Switching (VCS) fabric technology is a Layer 2 proprietary Ethernet technology from Brocade Communications Systems, later acquired by Extreme Networks. [1] It is designed to improve network utilization, maximize application availability, increase scalability, and simplify the network architecture in virtualized data centers.
Ethernet fabrics encompasses Data Center Bridging (DCB) technologies, IEEE 802.1aq and the emerging IETF standard, Transparent Interconnection of Lots of Links (TRILL), to provide a more efficient way of moving data throughout the network. An Ethernet fabric is promoted for Fibre Channel over Ethernet (FCoE) and iSCSI storage traffic.
Ethernet fabrics have the following characteristics: [2]
Brocade markets using the term "Ethernet fabric". [3] Brocade SAN fabric technology is currently deployed in over 90 percent of the Global 1000 data centers. [4] With VCS Fabric technology, Brocade will be bringing the same level of innovation to the data center LAN environment.
With VCS Fabric technology, all configuration and destination information is distributed to each member switch in the fabric. For example, when a server connects to the fabric for the first time, all switches in the fabric learn about that server. Also, when two VCS-enabled switches are connected, the fabric is automatically created, and the switches discover the common fabric configuration. This fabric configuration is shared amongst all of the switches in the fabric, making it masterless, so no single switch stores configuration information or controls fabric operations.
Distributed intelligence enables the automatic migration of port profiles (AMPP) which ensures that the source and destination network ports have the same configuration when virtual machines migrate.
All switches in an Ethernet fabric are managed as if they were a single logical chassis. To the rest of the network, the fabric looks no different than any other single Layer 2 switch. Each physical switch in the fabric is managed as if it were a port module in a chassis. This enables fabric scalability without manual configuration. The logical chassis capability significantly reduces management of small-form-factor edge switches. Instead of managing each top-of-rack switch (or switches in blade server chassis) individually, organizations can manage them as one logical chassis, which further optimizes the network in the virtualized data center and will further enable a cloud computing model.
Dynamic services extend the VCS Fabric technology to incrementally incorporate network services. A dynamic service behaves like a special service module in a modular chassis. Possible fabric services include fabric extension over distance, native Fibre Channel connectivity, Layer 4 - 7 services such as the Brocade application resource broker, and security services such as firewalls and data encryption. Switches can join an Ethernet fabric, adding a network service layer that is available across the entire fabric.
Brocade announced VCS Fabric technology on June 9, 2010 at its annual Technology Day in New York City. It is available as a licensed feature for the Brocade VDX switch family.
Fibre Channel (FC) is a high-speed data transfer protocol providing in-order, lossless delivery of raw block data. Fibre Channel is primarily used to connect computer data storage to servers in storage area networks (SAN) in commercial data centers.
A blade server is a stripped-down server computer with a modular design optimized to minimize the use of physical space and energy. Blade servers have many components removed to save space, minimize power consumption and other considerations, while still having all the functional components to be considered a computer. Unlike a rack-mount server, a blade server fits inside a blade enclosure, which can hold multiple blade servers, providing services such as power, cooling, networking, various interconnects and management. Together, blades and the blade enclosure form a blade system, which may itself be rack-mounted. Different blade providers have differing principles regarding what to include in the blade itself, and in the blade system as a whole.
The RapidIO architecture is a high-performance packet-switched electrical connection technology. It supports messaging, read/write and cache coherency semantics. Based on industry-standard electrical specifications such as those for Ethernet, RapidIO can be used as a chip-to-chip, board-to-board, and chassis-to-chassis interconnect.
In computer networking, link aggregation is the combining of multiple network connections in parallel by any of several methods. Link aggregation increases total throughput beyond what a single connection could sustain, and provides redundancy where all but one of the physical links may fail without losing connectivity. A link aggregation group (LAG) is the combined collection of physical ports.
Catalyst is the brand for a variety of network switches, wireless controllers, and wireless access points sold by Cisco Systems. While commonly associated with Ethernet switches, a number of different types of network interfaces have been available throughout the history of the brand. Cisco acquired several different companies and rebranded their products as different versions of the Catalyst product line. The original Catalyst 5000 and 6000 series were based on technology acquired from Crescendo Communications. The 1700, 1900, and 2800 series Catalysts came from Grand Junction Networks, and the Catalyst 3000 series came from Kalpana in 1994.
EtherChannel is a port link aggregation technology or port-channel architecture used primarily on Cisco switches. It allows grouping of several physical Ethernet links to create one logical Ethernet link for the purpose of providing fault-tolerance and high-speed links between switches, routers and servers. An EtherChannel can be created from between two and eight active Fast, Gigabit or 10-Gigabit Ethernet ports, with an additional one to eight inactive (failover) ports which become active as the other active ports fail. EtherChannel is primarily used in the backbone network, but can also be used to connect end user machines.
Brocade Communications Systems, Inc., was an American technology company specializing in storage networking products, now a subsidiary of Broadcom Inc. The company is known for its Fibre Channel storage networking products and technology. Prior to the acquisition, the company expanded into adjacent markets including a wide range of IP/Ethernet hardware and software products. Offerings included routers and network switches for data center, campus and carrier environments, IP storage network fabrics; Network Functions Virtualization (NFV) and software-defined networking (SDN) markets such as a commercial edition of the OpenDaylight Project controller; and network management software that spans physical and virtual devices.
The IBM BladeCenter was IBM's blade server architecture, until it was replaced by Flex System in 2012. The x86 division was later sold to Lenovo in 2014.
The current portfolio of PowerConnect switches are now being offered as part of the Dell Networking brand: information on this page is an overview of all current and past PowerConnect switches as per August 2013, but any updates on current portfolio will be detailed on the Dell Networking page.
Fibre Channel over Ethernet (FCoE) is a computer network technology that encapsulates Fibre Channel frames over Ethernet networks. This allows Fibre Channel to use 10 Gigabit Ethernet networks while preserving the Fibre Channel protocol. The specification was part of the International Committee for Information Technology Standards T11 FC-BB-5 standard published in 2009. FCoE did not see widespread adoption.
The Cisco Nexus series switches are modular and fixed port network switches designed for the data center. Cisco Systems introduced the Nexus Series of switches on January 28, 2008. The first chassis in the Nexus 7000 family is a 10-slot chassis with two supervisor engine slots and eight I/O module slots at the front, as well as five crossbar switch fabric modules at the rear. Beside the Nexus 7000 there are also other models in the Nexus range.
A storage area network (SAN) or storage network is a computer network which provides access to consolidated, block-level data storage. SANs are primarily used to access data storage devices, such as disk arrays and tape libraries from servers so that the devices appear to the operating system as direct-attached storage. A SAN typically is a dedicated network of storage devices not accessible through the local area network (LAN).
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.
Cisco Unified Computing System (UCS) is a data center server computer product line composed of server hardware, virtualization support, switching fabric, and management software, introduced in 2009 by Cisco Systems. The products are marketed for scalability by integrating many components of a data center that can be managed as a single unit.
PAROLI is a proprietary protocol used inside a multi-shelf Carrier Routing System from Cisco and stands for "parallel optical link."
The Dell blade server products are built around their M1000e enclosure that can hold their server blades, an embedded EqualLogic iSCSI storage area network and I/O modules including Ethernet, Fibre Channel and InfiniBand switches.
Ethernet Routing Switch 3500 series and Ethernet Routing Switch 2500 series or ERS 3500 and ERS 2500 in data computer networking terms are stackable routing switches designed and manufactured by Avaya.
Dell Networking is the name for the networking portfolio of Dell. In the first half of 2013, Dell started to rebrand their different existing networking product brands to Dell Networking. Dell Networking is the name for the networking equipment that was known as Dell PowerConnect, as well as the Force10 portfolio.
The Avaya Virtual Services Platform 8000 Series, or VSP 8000, is a standalone Ethernet Switch manufactured by Avaya, and intended for use in Campus network and Data Center deployment scenarios.
ONTAP, Data ONTAP, Clustered Data ONTAP (cDOT), or Data ONTAP 7-Mode is NetApp's proprietary operating system used in storage disk arrays such as NetApp FAS and AFF, ONTAP Select, and Cloud Volumes ONTAP. With the release of version 9.0, NetApp decided to simplify the Data ONTAP name and removed the word "Data" from it, removed the 7-Mode image, therefore, ONTAP 9 is the successor of Clustered Data ONTAP 8.