|
Toronto Internet Exchange
The Toronto Internet Exchange Community (TorIX) is a not-for-profit Internet Exchange Point (IXP) located in a carrier hotel at 151 Front Street West, Equinix's TR2 data centre at 45 Parliament Street and 905 King Street West in Toronto, Ontario, Canada. , TorIX has 259 unique autonomous systems representing 285 peer connections and peak traffic rates of 1.344 Tbps, making it the largest IXP in Canada. According to Wikipedia's List of Internet Exchange Points by Size, TorIX is the 16th largest IXP in the world in numbers of peers, and 17th in the world in traffic averages. The Exchange is organized and run by industry professionals in voluntary capacity. Within 151 Front Street, TorIX is accessible within facilities operated by Equinix, Cologix, Neutral Data Centres and Frontier Networks, or available via the building's meet-me-room (MMR), which makes the IX reachable by any organization with a presence in the building. At Equinix TR2, TorIX is available to all organizati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10 Gigabit Ethernet
10 Gigabit Ethernet (10GE, 10GbE, or 10 GigE) is a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabits per second. It was first defined by the IEEE 802.3ae-2002 standard. Unlike previous Ethernet standards, 10 Gigabit Ethernet defines only full-duplex point-to-point links which are generally connected by network switches; shared-medium CSMA/CD operation has not been carried over from the previous generations Ethernet standards so half-duplex operation and repeater hubs do not exist in 10GbE. The 10 Gigabit Ethernet standard encompasses a number of different physical layer (PHY) standards. A networking device, such as a switch or a network interface controller may have different PHY types through pluggable PHY modules, such as those based on SFP+. Like previous versions of Ethernet, 10GbE can use either copper or fiber cabling. Maximum distance over copper cable is 100 meters but because of its bandwidth requirements, hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colocation (business)
Colocation (or co-location) is the act of placing multiple (sometimes related) entities within a single location. Examples * In an organization, it refers to placing related roles or groups in a single room, building or campus. * In business, it refers to the practice of locating multiple similar businesses in the same facility. * In trading, it often refers to placing multiple data centers in proximity to trading centers * In telecommunications, primarily wireless telecommunications facilities such as mobile wireless (cell sites) and radio broadcasting, it refers to the practice of locating multiple wireless broadcast facilities/providers within the same facility. Many jurisdictions now mandate the colocation of mobile wireless carriers within a single facility to avoid the proliferation of wireless communication towers. * In the fast food restaurant industry, one primary use of this concept is Yum! Brands with its KFC, Taco Bell, and Pizza Hut menus appearing in the same re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provider-independent Address Space
A provider-independent address space (PI) is a block of IP addresses assigned by a regional Internet registry (RIR) directly to an end-user organization. The user must contract with a local Internet registry (LIR) through an Internet service provider to obtain routing of the address block within the Internet. Provider-independent addresses offer end-users the opportunity to change service providers without renumbering of their networks and to use multiple access providers in a multi-homed configuration. However, provider-independent blocks may increase the burden on global routers, as the opportunity for efficient route aggregation through Classless Inter-Domain Routing (CIDR) may not exist. IPv4 assignments One of the RIRs is RIPE NCC. The RIPE NCC can no longer assign IPv4 Provider Independent (PI) address space as it is now using the last of IPv4 address space that it holds. IPv4 address space from this last is allocated according to section 5.1 of "IPv4 Address Allocation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Route Server
A route server is a computer server that was originally developed by the Routing Arbiter project, with funding from the National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National .... This routing process directs information among Border Gateway Protocol (BGP) routers. These servers are placed at Network access points (NAPs), where centralized computers organize and match routing data. Route servers are important because they help manage BGP sessions. BGP sessions have difficulties with overhead when managing sessions where routers with single and multiple domains are connected (''also known as full mesh routing connectivity)''. Route servers reduce overhead by referencing the IP routing table of an autonomous system where the server is located. Further readin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Content Delivery Network
A content delivery network, or content distribution network (CDN), is a geographically distributed network of proxy servers and their data centers. The goal is to provide high availability and performance by distributing the service spatially relative to end users. CDNs came into existence in the late 1990s as a means for alleviating the performance bottlenecks of the Internet as the Internet was starting to become a mission-critical medium for people and enterprises. Since then, CDNs have grown to serve a large portion of the Internet content today, including web objects (text, graphics and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, on-demand streaming media, and social media sites. CDNs are a layer in the internet ecosystem. Content owners such as media companies and e-commerce vendors pay CDN operators to deliver their content to their end users. In turn, a CDN pays Internet service providers (I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autonomous System Number
An autonomous system (AS) is a collection of connected Internet Protocol (IP) routing prefixes under the control of one or more network operators on behalf of a single administrative entity or domain, that presents a common and clearly defined routing policy to the Internet. Each AS is assigned an autonomous system number (ASN), for use in Border Gateway Protocol (BGP) routing. Autonomous System Numbers are assigned to Local Internet Registries (LIRs) and end user organizations by their respective Regional Internet Registries (RIRs), which in turn receive blocks of ASNs for reassignment from the Internet Assigned Numbers Authority (IANA). The IANA also maintains a registry of ASNs which are reserved for private use (and should therefore not be announced to the global Internet). Originally, the definition required control by a single entity, typically an Internet service provider (ISP) or a very large organization with independent connections to multiple networks, that adhered to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Internet Registration Authority
The Canadian Internet Registration Authority (CIRA) (french: Autorité canadienne pour les enregistrements Internet ACEI) is the organization that manages the .ca country code top-level domain (ccTLD) for Canada. Its offices are located at 979 Bank Street in Ottawa, Ontario, Canada. CIRA sets the policies and agendas that support Canada's Internet community and Canada's involvement in international Internet governance. It is a member-driven organization with membership open to all that hold a .ca domain. As of January 2021, there were more than 3 million active .ca domains. History Inception In May 1987, the Information Sciences Institute at the University of Southern California, delegated the ccTLD .ca to the University of British Columbia (UBC) in Vancouver British Columbia, Canada. The university was named the sponsoring delegation for .ca. John Demco, the university's Computing Facilities Manager for the Department of Computer Science, would be its administrator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Code Division Multiple Access
Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth). To permit this without undue interference between the users, CDMA employs spread spectrum technology and a special coding scheme (where each transmitter is assigned a code). CDMA optimizes the use of available bandwidth as it transmits over the entire frequency range and does not limit the user's frequency range. It is used as the access method in many mobile phone standards. IS-95, also called "cdmaOne", and its 3G evolution CDMA2000, are often simply referred to as "CDMA", but UMTS, the 3G standard used by GSM carriers, also uses "wideband CDMA", or W-CDMA, as well as TD-CDMA and TD-SCDMA, as its radio technologies. It can be also used as a channel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Time Protocol
The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable- latency data networks. In operation since before 1985, NTP is one of the oldest Internet protocols in current use. NTP was designed by David L. Mills of the University of Delaware. NTP is intended to synchronize all participating computers to within a few milliseconds of Coordinated Universal Time (UTC). It uses the intersection algorithm, a modified version of Marzullo's algorithm, to select accurate time servers and is designed to mitigate the effects of variable network latency. NTP can usually maintain time to within tens of milliseconds over the public Internet, and can achieve better than one millisecond accuracy in local area networks under ideal conditions. Asymmetric routes and network congestion can cause errors of 100 ms or more. The protocol is usually described in terms of a client–server model, but can as easil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Route Server
A route server is a computer server that was originally developed by the Routing Arbiter project, with funding from the National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National .... This routing process directs information among Border Gateway Protocol (BGP) routers. These servers are placed at Network access points (NAPs), where centralized computers organize and match routing data. Route servers are important because they help manage BGP sessions. BGP sessions have difficulties with overhead when managing sessions where routers with single and multiple domains are connected (''also known as full mesh routing connectivity)''. Route servers reduce overhead by referencing the IP routing table of an autonomous system where the server is located. Further readin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
