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It is not rare when relatively primitive charts or diagrams are referred to as visualizations. When one is monitoring/managing performance at the scale of a data center, it is especially obvious that such visualizations are not very helpful as they fail to capture or present information in a holistic way, thus making it hard to make management decisions. This paper proposes a holistic visualization method which is based on the theory of information visualization, namely (1) metaphor as base, (2) density maximization and (3) proximity packing. The proposed method can concurrently digest multiple streams of packet traffic but can also incorporate streams of alternative monitoring data.