{"id":124,"date":"2016-04-29T11:15:46","date_gmt":"2016-04-29T10:15:46","guid":{"rendered":"http:\/\/www.i3a.uclm.es\/raap\/?page_id=124"},"modified":"2017-05-02T12:42:26","modified_gmt":"2017-05-02T11:42:26","slug":"3-2","status":"publish","type":"page","link":"https:\/\/www.i3a.uclm.es\/raap\/?page_id=124","title":{"rendered":"Integration of SDN with Cloud Computing"},"content":{"rendered":"

Integration of SDN with Cloud Computing<\/strong><\/p>\n

The use of the SDN (Software Defined Network) paradigm is based in a very simple principle: the split between control plane and data plane. For that, the network forwarding function is totally independent from the network control function. The first function is located in each switch or network device and the other one is located in an especial device called controller. This one communicates, using the OpenFlow protocol over a secure channel, the forwarding tables to each network device. So, SDN technologies enables us to adapt network routes to the network, or user, requeriments; monitor the state of links; provide QoS; set up firewalls, virtual networks, etc.; all of them easy and automatically and without human interaction.<\/p>\n

The above characteristics make of SDN a technology to be used in cloud computing, because can resolve indeed a lot of problems present in data centers now. Some of these problems are: provide to each tenant of data center its own virtual network, isolated from the other tenant network; reconfigurate the route between two virtual machine after a network faliure, or machine migrations; reserve bandwith for migrations and QoS, etc.<\/p>\n

\"Description
Description of SDN architecture<\/figcaption><\/figure>\n
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