Carrier Ethernet services are clearly the optimum way of transporting vast amounts of data center traffic at seriously high speeds. Data rates up to 100 Gigabit have been standardized and services scale in 500 MB increments. Tata Communications, a recognized leader in the Ethernet space, has a global data center footprint as well as 24 Ethernet nodes. In addition, the company is the first to deploy a Carrier Ethernet (CE) network based on Provider Backbone Bridging (PBB), which is a next-generation technology (see sidebar). Impressive bragging rights, but what is really interesting is the way that the combination — providing Ethernet services along with a global network — can be used by mid-sized multinationals.
For example, a mid-sized company that operates globally may prefer to employ several private centers instead of a hosted service. However, by deploying Carrier Ethernet connections to a local Tara node, they can create a network of virtual data centers that function as a seamless cloud-computing resource. This is a more efficient way of employing the company's resources, e.g. servers in different locations and time zones can be mixed and matched when workloads peak. This is one of the raison d’êtres of the cloud-computing concept, but now the resources are not centralized, they’re distributed. One could also imagine that a hosted facility could be used as a synchronized, backup service... Read More
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