Inter-domain routing is data flow control and
interaction between
Primary Domain Controller On Microsoft Servers, a domain controller (DC) is a Server (computing), server computer that responds to security authentication requests (logging in, etc.) within a Windows domain. A ''domain'' is a concept introduced in Windows NT whereby a user m ...
(PDC) computers. This type of computer uses various computer protocols and services to operate. It is most commonly used to
multicast between
internet domains.
Internet use
An Internet service provider,
ISP, is provided with a unique
URL
A Uniform Resource Locator (URL), colloquially termed as a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifie ...
access address. This address is a unique number. The number for each
ISP is stored within a
DNS 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 specialized computer, called a
PDC PDC may refer to:
In science and technology Chemistry, biology and medicine
* Phosducin, a human protein and gene in the retina
* Pyridinium dichromate (Cornforth reagent), a chromium-based oxidant
* Pyruvate dehydrogenase complex, an enzyme ...
, (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 an 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 may refer to:
Science
* Replication (scientific method), one of the main principles of the scientific method, a.k.a. reproducibility
** Replication (statistics), the repetition of a test or complete experiment
** Replication crisi ...
servers connect to these control computers and they are routed to the
Internet backbone 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 Protocol,
Classless Inter-Domain Routing,
Multicast Source Discovery Protocol, and
Protocol Independent Multicast.
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 WINS may refer to:
*WINS (AM), an all-news radio station in New York City
*WINS-FM, a radio station in New York City
*World Institute for Nuclear Security
*Windows Internet Name Service
*WINS (solution stack), a set of software subsystems
*Wireles ...
and
Browser 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 system Autonomous system may refer to:
* Autonomous system (Internet), a collection of IP networks and routers under the control of one entity
* Autonomous system (mathematics), a system of ordinary differential equations which does not depend on the inde ...
.
References
See also
*
List of routing protocols
A routing protocol specifies how routers communicate with each other to distribute information that enables them to select routes between nodes on a computer network. Routers perform the traffic directing functions on the Internet; data packets ...
.
Network architecture
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