Cloud networking Inter-networking data centers and connecting users

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Wednesday, 10 February 2010 20:47

Cloud networking Inter-networking data centers and

connecting usersWritten by Mike Smolyansky

Cloud networking Inter-networking data centers and connecting users http://www.usgglobal.com/index.php?option=com_k2&view=item&id=5:cloud-networking-inter-netw...

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Social sharing

serving users are run in data centers to which the users are directly linked. That will save inter-data-center trunks for data exchange among application components.

Address management for virtual components in a cloud network

The type of network connections needed to support cloud computing are largely the same as those needed to support traditional client/server computing -- with one exception: In cases

where resource locations are flexible, there must be a mechanism for addressing applications or components once they're assigned to a resource.

It's best to query data center networking and IT vendors for their strategies in address management for virtual components in a cloud. Solutions deployed today tend to be based onmanaging the domain name server (DNS) decoding of logical application URLs into IP addresses, or using a form of NAT (network address translation) similar to the "elastic IP addresses"

used in Amazon's EC2. Amazon's elastic IP addresses are associated with users' accounts rather than an instance, and they can be used to remap public IP addresses to an instance

associated with a user's account.

Connecting public and private clouds

It is almost inevitable that companies will deploy both private computing clouds and public cloud facilities. This may require hybridization of the two, creating connections to make the public

and private clouds appear to be a homogeneous resource pool. That can be done either by making both clouds a part of a common VPN or by employing a form of federation networking

using a cloud management and interconnection standard. Unfortunately, there is no solid standard for federation at this point, so it will be necessary to check with cloud providers and with

your internal network and IT vendors to ensure that you have a compatible option for interconnection.

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Mike Smolyansky

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Cloud networking Inter-networking data centers and connecting users