Download Optical Networks. A Practical Perspective by Rajiv Ramaswami PDF
By Rajiv Ramaswami
The 3rd version of Optical Networks is still the authoritative resource for info on optical networking applied sciences and methods. Componentry and transmission are mentioned intimately with emphasis on functional networking concerns that impact enterprises as they assessment, installation, or strengthen optical networks. New updates during this quickly altering know-how are brought. those updates comprise sections on pluggable optical transceivers, ROADM (reconfigurable optical add/drop multiplexer), and digital dispersion repayment. present criteria updates similar to G.709 OTN, in addition to, these for GPON, EPON, and BPON are featured. increased discussions on multimode fiber with extra sections on photonic crystal and plastic fibers, in addition to extended insurance of Ethernet and Multiprotocol Label Switching (MPLS).
This ebook basically explains the entire hard-to-find details on structure, regulate and administration. It serves as your consultant at each step of optical networking-- from making plans to implementation via ongoing upkeep. This publication is your key to entirely figuring out functional optical networks.
- In-depth insurance of optimization, layout, and administration of the elements and transmission of optical networks.
- Filled with examples, figures, and challenge units to help in improvement of responsible, quick networks.
- Focuses on sensible, networking-specific matters: every little thing you want to recognize to enforce at the moment on hand optical solutions.
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Extra resources for Optical Networks. A Practical Perspective
Example text
The network layer performs the end-to-end routing function of taking a message at its source and delivering it to its destination. The predominant network layer today is IP, and the main network element in an IP network is an IP router. IP provides a way to route packets (or datagrams) end to end in a packet-switched network. IP includes statistical multiplexing of multiple packet streams and today also provides some simple and relatively slow and inefficient service restoration mechanisms. The Internet Protocol has been adapted to operate over a variety of data link and physical media, such as Ethernet, serial telephone lines, coaxial cable lines, and optical fiber lines.
Rings are sparse (only two links per node), but still provide an alternate path to reroute traffic. In many cases a meshed network is actually implemented in the form of interconnected ring networks. At a high level, the network can be broken up into a metropolitan (or metro) network and a long-haul network. The metro network is the part of the network that lies within a large city or a region. The long-haul network interconnects cities or different regions. 1 Metropolitan iv- Interoffice network -'~L Access network lb.
First and foremost is the continuing, relentless need for more capacity in the network. This demand is fueled by many factors. The tremendous growth of the Internet and the World Wide Web, both in terms of number of users as well as the amount of time and thus bandwidth taken by each user, is a major factor. A simple example of the latter phenomenon is the following: An average voice phone call lasts about 3 minutes; in contrast, users connecting to the Internet via dialup lines typically stay on for an average of 20 minutes.