Corporate network

A corporate network ( CN ) is used to network spatially distributed individual networks of an organization (company, military, police) with one another. A CN is a closed and private communication network.

In the area of computer networks , for example , computer networks (LAN) distributed throughout Germany can be networked with each other using MPLS and CN technology and connected to the Internet via a common firewall . In telecommunications , one speaks of a CN when telephone systems (for example via dedicated lines ) are networked with one another.

advantages

A CN offers cost advantages for the operator because, among other things, he no longer has to operate a separate firewall for each location . There is also no need to maintain the numerous firewall solutions, as there is only one firewall at the node . The same applies to the integration of the mail and data servers.

CN and bandwidths

The bandwidths of the respective connections can be optimally used thanks to CN. Furthermore, when using terminal server / Citrix server systems, internal company data traffic can even take place via narrow-band and inexpensive ISDN or ADSL connections.

CN vs. LAN

While a LAN is the computer network of a single location, a CN is the entire computer network of a company with all of its connected locations.

CN vs. WAN

With the WAN , several locations are connected to one another using dedicated lines . These lines go from point a to point b and do not touch the internet. With the CN, on the other hand, the lines from all locations go into the Internet, are tunneled through here and meet at the star point .

CN and new services

New network-wide services such as IP telephony or mail filters can be implemented at the network node and are then available to all participants within the entire CN. Real-time applications such as B. Telephony (Voice over IP), however, require high quality requirements on the backbone and on the subscriber lines of the individual branches within a corporate network. Sufficient bandwidth and prioritization of the voice traffic to the end device must be guaranteed. Subscriber connections based on DSL and routers that do not meet these standards are often implemented.

user

Major users are the German police with the corporate network of the police - upper network level (CNP-ON), the German Bundeswehr (FSpNBw) and the ARD with the ARD star .