Abstract
The Global Environment for Network Innovations (GENI) provides a virtual laboratory for exploring future internets at scale. It consists of many geographically distributed aggregates for providing computing and networking resources for setting up network experiments. A key design question for GENI experimenters is where they should reserve the resources, and in particular whether they should reserve the resources from a single aggregate or from multiple aggregates. This not only depends on the nature of the experiment, but needs a better understanding of underlying GENI networks as well. This paper studies the performance of GENI networks, with a focus on the tradeoff between single aggregate and multiple aggregates in the design of GENI experiments from the performance perspective. The analysis of data collected will shed light on the decision process for designing GENI experiments.
Highlights
The Global Environment for Network Innovations (GENI) is a project sponsored by the National Science Foundation (NSF) with the aim to provide a collaborative environment to build a virtual laboratory for exploring future internets at scale [1, 2]
We collected both latency and bandwidth information from these two experiments. Links in these two experiments can be divided into three categories: Category 1 (Same physical machine/computer (PC)): the links connecting two virtual machines (VMs) that are allocated from the same physical machine; Category 2 (Same Aggregate): the links connecting two VMs that are allocated from two different physical machines located in the same aggregate; and Category 3 (Different Aggregates): the links connecting two VMs that are allocated from two different physical machines located in two different aggregates
Understanding the GENI networks is an important step in making a good design for GENI experiments
Summary
The Global Environment for Network Innovations (GENI) is a project sponsored by the National Science Foundation (NSF) with the aim to provide a collaborative environment to build a virtual laboratory for exploring future internets at scale [1, 2]. It has been transitioning from the development phase to the stage in which we pay more attention to deployment and adoption to provide support for research adn educational experiments. As more GENI racks are deployed on university campuses across the United States, GENI has grown to have tens of aggregates with resources available for network experiments [4]
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