Building Large-Scale, Reliable Network Services

Author(s):  
Alan L. Glasser
Keyword(s):  
2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Dashmeet Anand, Hariharakumar Narasimhakumar, Et al.

Service Function Chaining (SFC) is a capability that links multiple network functions to deploy end-to-end network services. By virtualizing these network functions also known as Virtual Network Functions (VNFs), the dependency on traditional hardware can be removed, hence making it easier to deploy dynamic service chains over the cloud environment. Before implementing service chains over a large scale, it is necessary to understand the performance overhead created by each VNF owing to their varied characteristics. This research paper attempts to gain insights on the server and networking overhead encountered when a service chain is deployed on a cloud orchestration tool such as OpenStack. Specifically, this research will measure the CPU utilization, RAM usage and System Load of the server hosting OpenStack. Each VNF will be monitored for its varying performance parameters when subjected to different kinds of traffic. Our focus lies on acquiring performance parameters of the entire system for different service chains and compare throughput, latency, and VNF statistics of the virtual network. Insights obtained from this research can be used in the industry to achieve optimum performance of hardware and network resources while deploying service chains.


2007 ◽  
Vol 6 (3) ◽  
Author(s):  
Robert S. Pindyck

This paper addresses the investment impact of network sharing mandated by the 1996 Telecommunications Act. Such investments involve sunk costs and so are irreversible. Regulators allow entrants to utilize such facilities at prices reflecting the cost of building a new, efficient, large-scale network. Such sharing opportunities are extensive, covering virtually all network services, and extremely flexible, as entrants can rent facilities in small increments for short duration. Because entrants do not bear the sunk costs, there is an asymmetric allocation of risk and return not properly accounted for in the pricing of network services. This creates a significant investment disincentive.


Author(s):  
Takuma Oide ◽  
Akiko Takahashi ◽  
Atsushi Takeda ◽  
Takuo Suganuma

To provide the stable and continuous network services in cases of large-scale natural disasters, computers must use extremely limited network and computational resources effectively without imposing additional administrative burdens. The authors propose a P2P Information Sharing System for affected areas based on our proposed structured P2P network called the Well-distribution Algorithm for an Overlay Network (WAON). By applying the WAON framework, the system configures the P2P network autonomously using the remaining nodes, and achieves load balancing dynamically without additional network maintenance costs. Therefore, the system can perform well in an unstable network environment such as that during a disaster. The authors designed and implemented the system and evaluated its overall system behavior and performance in simulations assuming the real scenario of the Great East Japan Earthquake. Results show that the authors' system can distribute safety confirmation information of victims efficiently among the remaining nodes.


Author(s):  
Juhoon Kim ◽  
Catalin Meirosu ◽  
Ioanna Papafili ◽  
Rebecca Steinert ◽  
Sachin Sharma ◽  
...  

2019 ◽  
Vol 11 (7) ◽  
pp. 155 ◽  
Author(s):  
Yufeng Wang ◽  
Shuangrong Liu ◽  
Songqian Li ◽  
Jidong Duan ◽  
Zhihao Hou ◽  
...  

Social network services for self-media, such as Weibo, Blog, and WeChat Public, constitute a powerful medium that allows users to publish posts every day. Due to insufficient information transparency, malicious marketing of the Internet from self-media posts imposes potential harm on society. Therefore, it is necessary to identify news with marketing intentions for life. We follow the idea of text classification to identify marketing intentions. Although there are some current methods to address intention detection, the challenge is how the feature extraction of text reflects semantic information and how to improve the time complexity and space complexity of the recognition model. To this end, this paper proposes a machine learning method to identify marketing intentions from large-scale We-Media data. First, the proposed Latent Semantic Analysis (LSI)-Word2vec model can reflect the semantic features. Second, the decision tree model is simplified by decision tree pruning to save computing resources and reduce the time complexity. Finally, this paper examines the effects of classifier associations and uses the optimal configuration to help people efficiently identify marketing intention. Finally, the detailed experimental evaluation on several metrics shows that our approaches are effective and efficient. The F1 value can be increased by about 5%, and the running time is increased by 20%, which prove that the newly-proposed method can effectively improve the accuracy of marketing news recognition.


2012 ◽  
Vol 45 (8) ◽  
pp. 2868-2883 ◽  
Author(s):  
Kwontaeg Choi ◽  
Kar-Ann Toh ◽  
Hyeran Byun

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