Inter-domain
Encyclopedia
inter-domain is a term used to describe data flow control and interaction
between Primary Domain Controller
(PDC) computers. This type of computer uses various computer protocols and services to operate. It is most commonly used to multicast
between internet
domains.
server. The DNS servers interpret the ISP URL Domain name
and provide the appropriate IP address
number. The Domain is under the control of a specialised computer, called a PDC
, (primary domain controller). This computer holds records of all the user accounts within the domain, their rights to access information, and lists of approved System Operatives. This PDC is backed up by a SDC, (a secondary domain controller), this computer synchronises itself with the PDC and takes over the role in the event of a PDC failure. Multiple replication
servers connect to these control computers and they are routed to the Internet backbone
to provide the requested data to and from the domain.
, Classless Inter-Domain Routing
, Multicast Source Discovery Protocol
, and Protocol Independent Multicast
.
services to allow other computers to gain access to digital information that it has control over.
.
Interaction
Interaction is a kind of action that occurs as two or more objects have an effect upon one another. The idea of a two-way effect is essential in the concept of interaction, as opposed to a one-way causal effect...
between Primary Domain Controller
Primary Domain Controller
A Primary Domain Controller is a server computer in a Windows domain. A domain is a group of computers , where access to a variety of computer resources is controlled by the PDC. Various account types exist in the domain, the most basic is the "guest" or "anonymous login" account...
(PDC) computers. This type of computer uses various computer protocols and services to operate. It is most commonly used to multicast
Multicast
In computer networking, multicast is the delivery of a message or information to a group of destination computers simultaneously in a single transmission from the source creating copies automatically in other network elements, such as routers, only when the topology of the network requires...
between internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...
domains.
Internet use
An Internet service provider ISP is provided with a unique URL access address. This address is a unique number. The number for each ISP is stored within a DNSDomain name system
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...
server. The DNS servers interpret the ISP URL Domain name
Domain name
A domain name is an identification string that defines a realm of administrative autonomy, authority, or control in the Internet. Domain names are formed by the rules and procedures of the Domain Name System ....
and provide the appropriate IP address
IP address
An Internet Protocol address is a numerical label assigned to each device 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...
number. The Domain is under the control of a specialised computer, called a PDC
Primary Domain Controller
A Primary Domain Controller is a server computer in a Windows domain. A domain is a group of computers , where access to a variety of computer resources is controlled by the PDC. Various account types exist in the domain, the most basic is the "guest" or "anonymous login" account...
, (primary domain controller). This computer holds records of all the user accounts within the domain, their rights to access information, and lists of approved System Operatives. This PDC is backed up by a SDC, (a secondary domain controller), this computer synchronises itself with the PDC and takes over the role in the event of a PDC failure. Multiple replication
Replication (computer science)
Replication is the process of sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility. It could be data replication if the same data is stored on multiple storage devices, or...
servers connect to these control computers and they are routed to the Internet backbone
Internet backbone
The Internet backbone refers to the principal data routes between large, strategically interconnected networks and core routers in the Internet...
to provide the requested data to and from the domain.
Communication protocols
Internet protocols that are focused on inter-domain functions include: Border Gateway Multicast ProtocolBorder Gateway Multicast Protocol
The Border Gateway Multicast Protocol is IETF on-going project in an attempt to design a true inter-domain multicast routing protocol. BGMP should be able to scale in order to operate in the global Internet.- External links :...
, Classless Inter-Domain Routing
Classless Inter-Domain Routing
Classless Inter-Domain Routing is a method for allocating IP addresses and routing Internet Protocol packets. The Internet Engineering Task Force introduced CIDR in 1993 to replace the previous addressing architecture of classful network design in the Internet...
, Multicast Source Discovery Protocol
Multicast Source Discovery Protocol
Multicast Source Discovery Protocol is a Protocol Independent Multicast family multicast routing protocol defined by Experimental RFC 3618. MSDP interconnects multiple IPv4 PIM Sparse-Mode domains which enables PIM-SM to have Rendezvous Point redundancy and inter-domain multicasting.MSDP uses...
, and Protocol Independent Multicast
Protocol Independent Multicast
Protocol-Independent Multicast is a family of multicast routing protocols for Internet Protocol networks that provide one-to-many and many-to-many distribution of data over a LAN, WAN or the Internet...
.
Services
A PDC uses a number of special computer programs to announce its presence to other domain controllers. It uses Windows Internet naming service WINS and BrowserWeb browser
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content...
services to allow other computers to gain access to digital information that it has control over.
Other
The opposite of inter-domain routing is intra-domain routing: Routing within a domain or an autonomous systemAutonomous system (Internet)
Within the Internet, an Autonomous System is a collection of connected Internet Protocol routing prefixes under the control of one or more network operators that presents a common, clearly defined routing policy to the Internet....
.