Download e-book for iPad: Communicating Systems & Ntwks. Traffic, Performance by G. Fiche, G. Hebuterne

By G. Fiche, G. Hebuterne

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However, this involves on the one hand dynamic routing capacities, to bypass failures and congestion, and on the other hand the need to control and optimise the available bandwidth, and route lengths. Today the internet transports all sorts of information: files, messages, pictures, voice, video, etc. Its evolution in terms of size and in terms of diversity of services, thus tends to strengthen the need for hierarchy in routing, and the concept of differentiation of the service between packet flows (Intserv and Diffsew type priorities for instance).

Telecommunication Networks and Traffic 13 STP). The transmission medium is the signalling channel, which explains why this is known as common channel signalling (CCS). A signalling channel is usually a 64 kbit/s channel reserved solely for transporting signalling between two signalling points (SP or STP). One or more signalling channels are reserved depending on the volume of messages to be exchanged, a volume which of course depends on the size of the switches. They then form a signalling link set.

G. the Internet) via the GPRS network. Two new functional entities are 16 Communicating Networks: Traffic and Performance involved: the SGSN (serving GPRS support node) which transmits data between the mobile terminals and the mobile network, and the GGSN (gateway GSN) which interfaces the mobile network with the data network. In the UMTS network, the whole network evolves. A distinction is drawn between the radio part, RNS (radio network subsystem) and the core network part, CN (core network).

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Communicating Systems & Ntwks. Traffic, Performance by G. Fiche, G. Hebuterne

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