Growth in the number of smartphone and tablet applications deployed in
public data-centers, and the rising use of cloud services by enterprises
can lead to stretched resources, suboptimized networks and, ultimately,
an inferior user-experience. Perhaps now is the time to reshape the
cloud.
Until now, the networking compo¬nent of cloud infrastructure has been
confined primarily to intra-data-center communication. However, there
are a number of factors that are driving the development of
inter-data-center net¬working. These requirements need to be analyzed to
understand the differences in the resource environments of intra- and
inter-data-center communication; and the characteristics of data-center
traf¬fic patterns throughout the life cycle of a given workload.
Network virtualization provides tenants with secure, isolated, elas¬tic
network-slices with associated SLA guarantees – in essence, Networking
as a Service (NaaS). Cloud orchestration and elastic networking act as
the glue that binds computational, storage and networking resources
together.
To fully adopt the cloud as a central technology, additional network
considerations such as bandwidth, latency and privacy need to be
addressed. Current VPN technolo¬gy takes these parameters into
consid¬eration in the WAN but comprehensive integration into the cloud
technology base is lacking.
The complete article details Ericsson’s vision of the network-embedded cloud and elastic networking.
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