Download ATM & MPLS Theory & Application: Foundations of by David E. McDysan PDF

By David E. McDysan

ATM (Asynchronous move Mode) and MPLS (Multiprotocol Label Switching) are either criteria for moving details over networks. it is a entire consultant to figuring out and imposing those networking applied sciences.

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In organizations, flattening often refers to the reduction of middle management, which requires greater horizontal communication and interaction within the organization. This trend continues as executives reengineer the corporation, which in turn requires reengineering of the computing and communications network support infrastructure. With an ever-increasing number of two-income households, more enterprises strive to accommodate work at home and telecommuting. The corporate world now realizes that the quality of life and productivity improvements achieved by allowing people to work from home, instead of fighting through hours of rush hour traffic, pay off in the long run.

While not formally sanctioned standards committees, these industry forums are independent groups formed by vendors, users, and industry experts who have a vested interest in ensuring interoperability among different vendor products and carrier networks. In response to this increased sense of urgency, the ITU-T adopted new procedures in an effort to accelerate the pace of standardization required by the demand from industry and users and now works closely with industry forums, like the ATM Forum.

That is, faster circuits are generally less expensive when measured on a cost per bit per second basis. At the time of writing, “fast” means terabit per second speeds (1012 bps) across a single fiber optic strand, as achieved through Dense Wavelength Division Multiplexing (DWDM). However, don’t forget that you must fill up such a high-speed circuit to achieve this economic benefit. But aggregating many lower-speed flows into a larger stream is a fundamental concept of network infrastructure, such as ATM or MPLS.

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