Seamless integration of cloud and fog networks
; Gonçalves, CG
International Journal of Network Management Vol. 26, Nº 6, pp. 435 - 460, November, 2016.
ISSN (print): 1055-7148
ISSN (online): 1099-1190
Journal Impact Factor: 1,060 (in )
Digital Object Identifier: 10.1002/nem.1944
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A way to merge cloud computing infrastructures with traditional or legacy network deployments, leveraging
the best in both worlds and enabling a logically centralized control. A solution is proposed to extend existing
cloud computing software stacks so they are able to manage networks outside the cloud computing infras-
tructure, the fog, by extending the internal, virtualized network segments. This is useful in a variety of use
cases such as incremental legacy to cloud network migration, hybrid virtual/traditional networking, central-
ized control of existing networks, bare metal provisioning, and even offloading of advanced services from
typical home gateways into the operator. Any organization can develop different ‘drivers’ to support new,
specific networking equipment, not necessarily tied to a protocol or vendor, and leverage the fog network.
Our conceptual solution is prototyped on top of OpenStack, including changes to the API, command-line
interface (CLI), and other mechanisms. Test results indicate that there are low penalties on latency and
throughput, and provisioning times are reduced in comparison with similar maintenance operations on
traditional computer networks.