Computer Science – Networking and Internet Architecture
Scientific paper
2011-03-29
In Proc. IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), pp.596--601, 10-15 April 2011, Shanghai China
Computer Science
Networking and Internet Architecture
Appears in INFOCOM 2011 Cloud Computing Workshop
Scientific paper
10.1109/INFCOMW.2011.5928883
In a data center network, for example, it is quite often to use controllers to manage resources in a centralized man- ner. Centralized control, however, imposes a scalability problem. In this paper, we investigate the use of multiple independent controllers instead of a single omniscient controller to manage resources. Each controller looks after a portion of the network only, but they together cover the whole network. This therefore solves the scalability problem. We use flow allocation as an example to see how this approach can manage the bandwidth use in a distributed manner. The focus is on how to assign components of a network to the controllers so that (1) each controller only need to look after a small part of the network but (2) there is at least one controller that can answer any request. We outline a way to configure the controllers to fulfill these requirements as a proof that the use of devolved controllers is possible. We also discuss several issues related to such implementation.
Chao Jonathan H.
Tam Adrian S. -W.
Xi Kang
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