International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
Directed Transmission Path Strategy on SDN-Based Content Centric Networks for Efficient Caching San-Yuan Wang,1, Chi-Chun Chen2, Tain-Lieng Kao3* 1Associate Professor, Department of Information Engineering, I-Shou University, Taiwan, R.O.C.
2Software Development Engineer in Test, FINFARE INC. 17192 Murphy Ave Irvine, CA 92623, USA 3*Assistant professor, Department of Intelligent Network Technology, I-Shou University, Taiwan, R.O.C.
Corresponding Author ---------------------------------------------------------------------***--------------------------------------------------------------------Infocom conference in 2009[19]. This concept was further Abstract - With the development of technology, the
exemplified by the OpenFlow technology [3][7], Google utilized OpenFlow in 2012 to create an SDN architecture for its datacenter, which increased Google's network utilization rate from 30% to 95% in one fell swoop. This substantial improvement made various network equipment manufacturers realize the importance of SDN and further motivated them to develop products related to SDN [5].
Internet has become inseparable from life. The development of the 5G application and the core network architecture of the 5G will start to use the Software-Define-Network (SDN) architecture for transmission. Google Data Centers have already begun to develop and use the SDN to gain network bandwidth usage. The traditional VLANs will gradually migrate to network virtualization because excessive data traffic will inevitably lead to network saturation. Therefore, major equipment vendors have begun to focus on SDN related research, and hence data center related topics possess great potential of development. Caching is one of the most important topics. Attention will be on how to balance the cache hit rate and node replacement rate, and furthermore, to speed up the network and to make the transmission more efficient. Therefore, this research proposes a direct transmission mechanism, which can quickly confirm the connection information in the initial stage, find a better transmission path, and improve the cache hit ratio. Through exhausted simulation, the research finding include the relationship between network speed and cache hit ratio, so that the speed can be faster and more accurate in the initial stage and reduce the waste of cache resources or network performance degradation due to excessive network coverage can be avoided. From these experimental results the network speed can be improved by 5% in the initial transmission, and proposed strategy can make the cache hit ratio increase by 3-5%.
The most widely used aspects of the internet today include content access. According to Cisco Annual Internet Report (2018–2023) [22], video and other applications continue to be of enormous demand in today’s home, but there will be significant bandwidth demands with the application requirements of the future. Consequently, network virtualization has become an inevitable trend. However, the internet operates on an IP protocol and a host-to-host communication model, where content delivery was not part of its initial architecture. Therefore, several Information-Centric Networking (ICN) [25] proposals have begun to emerge, offering alternatives to the traditional TCP/IP communication architecture, such as ContentCentric Networking (CCN) [24]. Among those services and applications of the Internet, the most extensively used are video streaming and P2P usage. CCN, however, proposes a model for content by storing packet addresses and non-host content along the delivery path, known as network caching [1][2]. The advantage of this approach is that any node in the network can make requests, leading to massive caching that could potentially overload the network, causing it to become paralyzed or inefficient, and wasting network resources, thereby reducing overall network performance.
Key Words: SDN, CCN, ICN, Cache, Controller, Switch
1.
INTRODUCTION
With the flourishing development of cloud computing, mobile networking, as well as the Internet of Things (IoT) and the Internet, in today's network environment, network traffic must be heavily loaded. It's no longer based on a single server as in the past, but is gradually transitioning to multiple servers or a vast number of virtual networks to serve as bridges for communication between each other. To address the surge in network traffic today and to quickly allocate network resources based on traffic volume, as well as to make frequent and rapid configurations, the concept of the SDN architecture was introduced at the IEEE
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As the internet continues to develop, traditional network architectures are increasingly unable to handle the growing volume of network traffic. This challenge has led to the emergence of SDN architectures. Within an SDN framework, there's a separation between traffic forwarding and routing decisions in the network. An SDN Controller manages switches and routers, effectively transforming these nodes into forwarding devices. Through the OpenFlow communication protocol, these nodes can
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