下一代网络与传统网络之间的区别

1.下一代网络：
简而言之，下一代网络被称为NGN，NGN是用于电话和数据的基于分组的网络。它使用多种宽带和支持服务质量(QoS)的传输技术来建立高级通信系统。 NGN可以在单个平台上处理多种类型的服务/业务，例如语音，音频，视频和其他多媒体。所有这些数据以数据包的形式传输。

在NGN传统网络被广泛使用之前，但缓慢地发展下一代网络开始取代传统网络系统。在传统网络系统上，这是电信领域的巨大架构发展和创新。它主要基于Internet技术，包括Internet协议(IP)，而H.323协议是下一代网络的主要组成部分。

2.传统网络：
传统网络是基于时分复用(TDM)的。传统网络基于某些固定函数意味着专用网络设备(例如交换机和路由器，MPLS交换机，以太网交换机等)，并且大多数网络类型都是传统网络，仍在组织和企业中使用。当数据通信每天都在增长并且网络设备的数量也以这种速度增长时，管理越来越多的固定函数网络基础设施设备以及控制人为配置错误变得越来越困难。

这种传统网络需要主动的人工管理来进行管理，但是在NGN中，这既可以虚拟也可以动态地完成。主要是传统网络需要昂贵的硬件，并且通常是基于硬件的。长期以来一直在使用。为了增加网络容量，传统网络需要实施新的硬件，这就是为什么它比NGN的成本更高的原因，NGN不需要新的硬件设置来增加网络容量。

下一代网络与传统网络之间的区别：

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 packet switching.	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.