Network management models to anticipate the problem of international Internet traffic in Indonesia

The number of Internet users in Indonesia in 2020 will increase up to 136.2 million users, while the Internet traffic will increase up to 2.1 Exabyte per month. However, 88% of internet traffic goes to international link and only 12% of traffic goes to domestic server. The problem is that the current capacity of Indonesian international links is only 20 Gbps, while the the required capacity is predicted to be 30 Gbps in year 2020. Therefore, we need a model to attain an efficient use of international bandwidth connection. This research aims to propose the three network management model in Indonesia, on the basis of cached server implementation. The models are derived by varying number of cached server, rack co-location, power supply, and capacity of international and domestic connectivity. The data is taken by conducting experimental test on an Indonesian leading telecommunications company. The result shows that the models can provide international bandwidth saving as much as 33.7%. Concerning the parameters of latency and hop count, the hybrid-cached server with 3 regional nodes has become the recommended model.