1. Next Generation Network :
In short Next Generation Network is termed as NGN which is packet based network used for both telephony and data. It uses multiple broadband and Quality of Services (QoS) enabled transport technologies to establish advance communication system. NGN can handle multiple type of services/traffic such as voice, audio, video and other multimedia in single platform. All these data transfer in the form of data packet.
Before NGN traditional network was used highly but slowly Next Generation Network started replacing Traditional network system. It is huge architectural evolution and innovation in telecommunication over the traditional networking system. It is mainly based on internet technology including Internet Protocol (IP) and H.323 protocol is the major component of Next Generation Network.
2. Traditional Network :
Traditional network is Time Division Multiplexing (TDM) based. Traditional network works based on some fixed function means dedicated network devices such as Switch and Router, MPLS switch, Ethernet switch etc and most of the network types are traditional network which are still in uses at organizations and enterprises. When data communication is growing day by day and number of network devices also increasing with that speed but it is getting difficult day by day to manage huge number of fixed function network infrastructure devices as well as to control human configuration errors.
This traditional network requires active human administration for management but in NGN that can be done virtually as well as dynamically. Mainly traditional network requires costly hardware and it is usually hardware based. It is in service since long time. To increase network capacity traditional network requires implementation of new hardware that’s why it costs more than that of NGN which does not require new hardware setup to increase network capacity.
Difference between Next Generation Network and Traditional Network :
|S.No.||NEXT GENERATION NETWORK||TRADITIONAL NETWORK|
|01.||Next Generation Network is Internet Protocol (IP) based.||Traditional Network is TDM based.|
|02.||It uses different control and signalling and protocols such as Internet Protocol, Multi Protocol Label Switching etc to support different multimedia services.||It uses standard Signalling System No 7 (SS7) signalling.|
|03.||Next Generation Network uses|
|Traditional Network uses circuit switching.|
|04.||In NGN bandwidth is acquired and released as it is needed.||In TDM bandwidth is reserved in advance as the bandwidth is fixed for call.|
|05.||Next Generation Network set up cost is low.||Traditional network set up cost is high.|
|06.||It is designed for intermittently data transmission.||It is poorly matched for bursty transmission and more towards continuous stream of transmission.|
|07.||During idle means when there is no communication then no resource is consumed.||Dedicated path is reserved for the duration of call.|
|08.||In NGN, Vendors can implement and customize the services and applications.||In Traditional network services and features depend on vendor implementation.|
|09.||These network use distributed switch functions with standard open interfaces between transport, control and applications.||These network use switch function in single box.|
|10.||It supports variable information (voice, data, multimedia) transfer.||It supports non-variable information transfer.|
|11.||Multiple services can be achieved in one platform i.e through IP.||Multiple services (voice, data, video) requires different platforms.|
|12.||In Next Generation Networking system we can choice network elements from multiple vendors.||In traditional networking system switching between vendors occurs depending upon provided features and performance.|
|13.||These Network are cost effective and requires less expansion cost.||These Network are less cost effective compared to Next Generation Network and requires expansion costs.|
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