10 gigabit Ethernet
or 10 GigE
) refers to various technologies for transmitting Ethernet frames at a rate of 10 gigabits per second (10×109 or 10 billion bits per second), first defined by the IEEE 802.3ae-2002 standard. Its adoption has been more gradual than previous revisions of Ethernet
Like previous versions of Ethernet, 10GbE supports both copper and fiber cabling. However, due to its higher bandwidth requirements, higher-grade copper cables are required: category 6a
or Class F/Category 7
cables for links up to 100m. Unlike previous Ethernet standards, 10 gigabit Ethernet defines only full duplex
point-to-point links which are generally connected by network switches. Half duplex operation and hubs do not exist in 10GbE.
Access Point (AP)
A single device that allows multiple devices to connect to the network via a wireless connection. The AP usually connects to a router
(via a wired network) if it's a standalone device, or is part of a router itself.
Refer also to the Wireless Access Point glossary entry.
Adware, or advertising-supported software, is any software package which automatically renders advertisements in order to generate revenue for its author. The advertisements may be in the user interface of the software or on a screen presented to the user during the installation process. The functions may be designed to analyze which Internet sites the user visits and to present advertising pertinent to the types of goods or services featured there. The term is sometimes used to refer to software that displays unwanted advertisements.
The speed of data or information that can flow through a path such as a communications network, a computer bus or a computer channel. Bandwidth is normally expressed in bits per second (bps), but may also be shown in kilobits per second (kbps), megabits per second (Mbps), or gigabits per second (Gbps). The larger the bandwidth, the faster the data flow.
This is a networking term in which a single wire can carry multiple signals at once. Broadband offers high-speed transmission and often refers to Internet access using cable modems and DSL.
A cable modem
is a type of network bridge
that provides bi-directional data communication via radio frequency
channels on a hybrid fibre-coaxial
) and RFoG
infrastructure. Cable modems are primarily used to deliver broadband Internet access
in the form of cable Internet
, taking advantage of the high bandwidth
of a HFC and RFoG network.
The Communications Assistance for Law Enforcement Act (CALEA) is a United States wiretapping law passed in 1994, during the presidency of Bill Clinton. CALEA's purpose is to enhance the ability of law enforcement agencies to conduct electronic surveillance by requiring that telecommunications carriers and manufacturers of telecommunications equipment modify and design their equipment, facilities, and services to ensure that they have built-in surveillance capabilities, allowing federal agencies to monitor all telephone, broadband internet, and VoIP traffic in real-time.
Pavlov Media is a "telecommunications carrier” under the CALEA provisions and as such we have to cooperate and provide information when requested. This primarily is the result of CALEA compliant notifications from media copyright holders who trace an IP address back to us as the ISP. We then must track down the "owner" of that IP Address and notify them they are in violation of the provisions of the copyright law and terminate their internet connection if they fail to cease and desist.
CAN (Campus Area Network)
A campus network
, campus area network
, corporate area network
is a computer network made up of an interconnection of local area networks (LANs) within a limited geographical area. The networking equipments (switches, routers) and transmission media (optical fiber, copper plant, Cat5 cabling
etc.) are almost entirely owned by the campus tenant / owner: an enterprise, university, government etc.
College or university campus area networks often interconnect a variety of buildings, including administrative buildings, academic buildings, university libraries, campus or student centers, residence halls, gymnasiums, and other outlying structures, like conference centers, technology centers, and training institutes.
Much like a university campus network, a corporate campus network serves to connect buildings. Examples of such are the networks at Googleplex and Microsoft's campus. Campus networks are normally interconnected with high speed Ethernet links operating over optical fiber such as Gigabit Ethernet
and 10 Gigabit Ethernet
Category 5 cable
) is a twisted pair cable for carrying signals. This type of cable is used in structured cabling
for computer networks such as Ethernet. The cable standard provides performance of up to 100 MHz and is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet), and 1000BASE-T (Gigabit Ethernet). Cat 5 is also used to carry other signals such as telephony and video. In some cases, multiple signals can be carried on a single cable; Cat 5 can carry two conventional telephone lines as well as a single 100BASE-TX channel in a single cable or two 100BASE-TX channels in a single cable.
The cable is commonly connected using punch down blocks and modular connectors
. Most Category 5 cables are unshielded, relying on the twisted pair design and differential signaling for noise rejection.
A computer virus
is a computer program that can replicate itself and spread from one computer to another. The term "virus" is also commonly, but erroneously, used to refer to other types of malware
, including but not limited to adware
programs that do not have a reproductive ability.
Malware includes computer viruses, computer worms
, trojan horses
, most rootkits
, spyware, dishonest adware, malicious BHOs
and other malicious software. The majority of active malware threats are usually trojans or worms rather than viruses. Malware such as trojan horses and worms is sometimes confused with viruses, which are technically different: a worm can exploit security vulnerabilities to spread itself automatically to other computers through networks, while a trojan horse is a program that appears harmless but hides malicious functions. Worms and trojan horses, like viruses, may harm a computer system's data or performance. Some viruses and other malware have symptoms noticeable to the computer user, but many are surreptitious or simply do nothing to call attention to themselves. Some viruses do nothing beyond reproducing themselves
, also known as an HTTP cookie
, web cookie
, or browser cookie
, is a small piece of data sent from a website and stored in a user's web browser
while a user is browsing a website. When the user browses the same website in the future, the data stored in the cookie can be retrieved by the website to notify the website of the user's previous activity. Cookies were designed to be a reliable mechanism for websites to remember the state of the website or activity the user had taken in the past. This can include clicking particular buttons, logging in, or a record of which pages were visited by the user even months or years ago.
Although cookies cannot carry viruses
, and cannot install malware
on the host computer, tracking cookies
and especially third-party tracking cookies
are commonly used as ways to compile long-term records of individuals' browsing histories — a major privacy concern that prompted European and US law makers to take action in 2011. Cookies can also store passwords and forms a user has previously entered, such as a credit card number or an address. When a user accesses a Web site with a cookie function for the first time, a cookie is sent from server to the browser and stored with the browser in the local computer. Later when that user goes back to the same website, the website will recognize the user because of the stored cookie with the user's information.
Other kinds of cookies perform essential functions in the modern Web. Perhaps most importantly, authentication cookies
are the most common method used by web servers to know whether the user is logged in or not, and which account they are logged in under. Without such a mechanism, the site would not know whether to send a page containing sensitive information, or require the user to authenticate himself by logging in. The security of an authentication cookie generally depends on the security of the issuing website and the user's web browser, and on whether the cookie data is encrypted. Security vulnerabilities may allow a cookie's data to be read by a hacker
, used to gain access to user data, or used to gain access (with the user's credentials) to the website to which the cookie belongs.
The Dynamic Host Configuration Protocol, or the protocol that provides a way to allocate IP addresses on a network. The system administrator assigns a range of IP address to DHCP and each client computer has its TCP/IP software configured to request an IP address from the DHCP server.
The Digital Millennium Copyright Act (DMCA) is a United States copyright law that implements two 1996 treaties of the World Intellectual Property Organization (WIPO). It criminalizes production and dissemination of technology, devices, or services intended to circumvent measures (commonly known as digital rights management or DRM) that control access to copyrighted works. It also criminalizes the act of circumventing an access control, whether or not there is actual infringement of copyright itself. In addition, the DMCA heightens the penalties for copyright infringement on the Internet. Passed on October 12, 1998, by a unanimous vote in the United States Senate and signed into law by President Bill Clinton on October 28, 1998, the DMCA amended Title 17 of the United States Code to extend the reach of copyright, while limiting the liability of the providers of online services for copyright infringement by their users.
The Domain Name System
) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network
. It associates various information with domain names
assigned to each of the participating entities. Most prominently, it translates easily memorized domain names to the numerical IP addresses
needed for the purpose of locating computer services and devices worldwide. By providing a worldwide, distributed keyword-based redirection service, the Domain Name System is an essential component of the functionality of the Internet.
An often-used analogy to explain the Domain Name System is that it serves as the phone book for the Internet by translating human-friendly computer hostnames
into IP addresses. For example, the domain name www.example.com translates to the addresses 220.127.116.11 (IPv4) and 2001:500:88:200::10 (IPv6). Unlike a phone book, the DNS can be quickly updated, allowing a service's location on the network to change without affecting the end users, who continue to use the same host name. Users take advantage of this when they use meaningful Uniform Resource Locators
(URLs) and e-mail addresses without having to know how the computer actually locates the services.
Digital subscriber line
, originally digital subscriber loop
) is a family of technologies that provide Internet access
by transmitting digital data over the wires of a local telephone network. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line
(ADSL), the most commonly installed DSL technology. DSL service is delivered simultaneously with wired telephone service on the same telephone line. This is possible because DSL uses higher frequency bands
for data. On the customer premises, a DSL filter
on each non-DSL outlet blocks any high frequency interference, to enable simultaneous use of the voice and DSL services.
The bit rate
of consumer DSL services typically ranges from 256 kbit/s to 40 Mbit/s in the direction to the customer (downstream), depending on DSL technology, line conditions, and service-level implementation. In ADSL, the data throughput in the upstream direction, (the direction to the service provider) is lower, hence the designation of asymmetric
service. In symmetric digital subscriber line
(SDSL) services, the downstream and upstream data rates are equal.
This is the most commonly used local area network (LAN) access method, which is defined by the IEEE as the 802.3 standard. An Ethernet port comes standard on all Macs and PCs for home use to connect to the Internet. The connection can be made via a DSL or cable modem, or by a directly provided Ethernet connection to the unit.
In computer networking, Fast Ethernet
is a collective term for a number of Ethernet
standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s. Of the Fast Ethernet standards 100BASE-TX is by far the most common and is supported by the vast majority of Ethernet hardware currently produced. Fast Ethernet was introduced in 1995 and remained the fastest version of Ethernet for three years before being superseded by gigabit Ethernet
is a method of transmitting information from one place to another by sending pulses of light through an optical fiber
. The light forms an electromagnetic carrier wave that is modulated to carry information. First developed in the 1970s, fiber-optic communication systems
have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age
. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed world.
can either be software-based or hardware-based and is used to help keep a network secure. Its primary objective is to control the incoming and outgoing network traffic by analyzing the data packets and determining whether it should be allowed through or not, based on a predetermined rule set. A network's firewall builds a bridge between the internal network or computer it protects, upon securing that the other network is secure and trusted, usually an external (inter)network, such as the Internet, that is not assumed to be secure and trusted.
Many personal computer operating systems
include software-based firewalls to protect against threats from the public Internet. Many routers
that pass data between networks contain firewall components and, conversely, many firewalls can perform basic routing functions.
In computer networking, gigabit Ethernet
or 1 GigE
) is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second (1,000,000,000 bits per second), as defined by the IEEE 802.3-2008 standard. It came into use beginning in 1999, gradually supplanting Fast Ethernet
in wired local networks, where it performed considerably faster. The cables and equipment are very similar to previous standards and were very common and economical by 2010.
gigabit links connected through hubs are allowed by the specification, but full-duplex
usage with switches is much more common.
is a site that offers Internet access over a wireless local area network
through the use of a router connected to a link to an Internet service provider
. Hotspots typically use Wi-Fi
Hotspots may be found in coffee shops and various other public establishments in many developed urban areas throughout the world.
The Internet Message Access Protocol
(commonly known as IMAP) is an Application Layer Internet protocol that allows an e-mail client
to access e-mail on a remote mail server. IMAP supports both on-line and off-line modes of operation. E-mail clients using IMAP generally leave messages on the server until the user explicitly deletes them. This and other characteristics of IMAP operation allow multiple clients to manage the same mailbox. Most e-mail clients
support IMAP in addition to Post Office Protocol (POP) to retrieve messages; however, fewer e-mail services
An Internet Protocol address
) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network
that uses the Internet Protocol
for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Its role has been characterized as follows: "A name indicates what we seek. An address indicates where it is. A route indicates how to get there.
The designers of the Internet Protocol defined an IP address as a 32-bit number and this system, known as Internet Protocol Version 4
(IPv4), is still in use today. However, due to the enormous growth of the Internet and the predicted depletion of available addresses, a new version of IP (IPv6
), using 128 bits for the address, was developed in 1995. IPv6 was standardized as RFC 2460 in 1998, and its deployment has been ongoing since the mid-2000s.
IP addresses are binary numbers, but they are usually stored in text files and displayed in human-readable
notations, such as 172.16.254.1 (for IPv4), and 2001:db8:0:1234:0:567:8:1 (for IPv6).
An Internet service provider
) is an organization that provides access to the Internet
. Access ISP
s directly connect clients to the Internet using copper wires, wireless
Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.
A local area network (LAN)
is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. The defining characteristics of LANs, in contrast to wide area networks
(WANs), include their usually higher data-transfer rates
, smaller geographic area, and lack of a need for leased telecommunication lines.
A Media Access Control
address (MAC address), Ethernet Hardware Address (EHA), hardware address, adapter address or physical address is a quasi-unique identifier assigned to most network adapters
or network interface cards (NICs) by the manufacturer for identification. If assigned by the manufacturer, a MAC address usually encodes the manufacturer's registered identification number.
, short for malicious
(or malevolent) software
, is software used or programmed by attackers to disrupt computer operation, gather sensitive information, or gain access to private computer systems. It can appear in the form of code, scripts, active content, and other software. Malware is a general term used to refer to a variety of forms of hostile or intrusive software.
Malware includes computer viruses
, trojan horses
, malicious BHOs
, rogue security software
and other malicious programs; the majority of active malware threats are usually worms or trojans rather than viruses. In law, malware is sometimes known as a computer contaminant
, as in the legal codes of several U.S. states. Malware is different from defective software, which is a legitimate software but contains harmful bugs that were not corrected before release. However, some malware is disguised as genuine software, and may come from an official company website in the form of a useful or attractive program which has the harmful malware embedded in it along with additional tracking software that gathers marketing statistics.
Softwares such as anti virus
, anti-malware, and firewalls
are relied upon by users at home, small and large organizations around the globe to safeguard against malware attacks which helps in identifying and preventing the further spread of malware in the network.
An MTU error normally occurs whenever the MTU setting for your Xbox console is less than what is required. Maximum transmission unit is the maximum amount of data that can be transmitted through a network.
For more information and troubleshooting from Xbox click the support
The word Network can be a bit tricky. There are many uses of the term network, social networks, professional networks, etc. For purposes of this discussion, we will concentrate on the computer network
A computer network
is a telecommunications network that connects a collection of computers to allow communication and data exchange between systems, software applications, and users. The computers that are involved in the network that originate, route and terminate the data are called nodes
. The interconnection of computers is accomplished with a combination of cable or wireless media and networking hardware
Computer networks are created to support many different sorts of services such as World Wide Web
, file servers
, instant messaging
A network interface controller
(NIC) (also known as a network interface card
, network adapter
, LAN adapter
and by similar terms) is a computer hardware component that connects a computer to a computer network
Early network interface controllers were commonly implemented on expansion cards
that plugged into a computer bus
; the low cost and ubiquity of the Ethernet
standard means that most newer computers have a network interface built into the motherboard