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A Heterogeneous wireless network (HWN) is a special case of a HetNet. Whereas a HetNet may consist of a network of computers or devices with different capabilities in terms of operating systems, hardware, protocols, etc., an HWN is a wireless network that consists of devices using different underlying radio access technology (RAT). [8]
The two are pure packet based networks without traditional voice circuit capabilities. These networks provide voice services via VoIP or VoLTE. Some systems are designed for point-to-point line-of-sight communications, once two such nodes get too far apart they can no longer communicate.
A mobile phone connects to the telephone network by radio waves exchanged with a local antenna and automated transceiver called a cellular base station (cell site or cell tower). The service area served by each provider is divided into small geographical areas called cells , and all the phones in a cell communicate with that cell's antenna.
In this implementation, each router within the network participates in the virtual routing environment in a peer-based fashion. While simple to deploy and appropriate for small to medium enterprises and shared data centers, VRF Lite does not scale to the size required by global enterprises or large carriers, as there is the need to implement ...
A high-level overview of network bridging, using the ISO/OSI layers and terminology. A network bridge is a computer networking device that creates a single, aggregate network from multiple communication networks or network segments. This function is called network bridging. [1] Bridging is distinct from routing.
The ability to use different authentication passwords at different times. MD5 and SHA-2 authentication between two routers. Sends topology changes, rather than sending the entire routing table when a route is changed. Periodically checks if a route is available, and propagates routing changes to neighboring routers if any changes have occurred.
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But in medium-sized and large networks, routers use dynamic routing protocols to determine the best paths to various network destinations. Sometimes, a network may use more than one dynamic routing protocol, for example, if two different companies merge or if networking devices from multiple vendors are used. [8]