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Network Security: Know It All
book

Network Security: Know It All

by James Joshi
July 2008
Beginner content levelBeginner
368 pages
11h 3m
English
Morgan Kaufmann
Content preview from Network Security: Know It All

Chapter 9. Optical Network Survivability

Providing resilience against failures is an important requirement for many highspeed networks. As these networks carry more and more data, the amount of disruption caused by a network-related outage becomes more and more significant. A single outage can disrupt millions of users and result in millions of dollars of lost revenue to users and operators of the network.

As part of the service-level agreement between a carrier and its customer leasing a connection, the carrier commits to providing a certain availability for the connection. A common requirement is that the connection be available 99.999% (five 9s) of the time. This requirement corresponds to a connection downtime of less than 5 minutes per year. ...

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Publisher Resources

ISBN: 9780080560151