By Kok-Keong Lee
The useful consultant to development resilient and hugely on hand IP networks
- Learn from an all-in-one advent to new positive aspects and advancements in construction a resilient IP network
- Enable your company to satisfy inner service-level agreements (SLAs) for mission-critical resources
- Understand how a resilient IP community will help in supplying mission-critical info corresponding to video and voice services
- Work with configuration examples which are according to real-world concerns and consumer requirements
- Get assistance and most sensible practices from box team of workers who've labored on a number of the greatest networks with stringent uptime requisites and SLAs
More businesses are construction networks with the goal of utilizing them to behavior enterprise. as the community has turn into this sort of strategic company software, its availability is of maximum significance to businesses and their provider services. The demanding situations for the pros liable for those networks comprise making sure that the community continues to be up for all time, protecting abreast of the newest applied sciences that support retain uptime, and reacting to ever-increasing denial-of-service (DoS) attacks.
Building Resilient IP Networks is helping you meet these demanding situations. This sensible advisor to development hugely on hand IP networks captures the essence of applied sciences that give a contribution to the uptime of networks. You achieve a transparent figuring out of ways to accomplish community availability by utilizing instruments, layout technique, and Cisco IOS® Software.
With Building Resilient IP Networks, you learn misconceptions approximately five-nines availability and learn how to concentration your consciousness at the genuine matters: appreciating the restrictions of the protocols, figuring out what has been performed to enhance them, and preserving abreast of these adjustments. development Resilient IP Networks highlights the significance of getting a modular method of development an IP community and, most vital, illustrates how a modular layout contributes to a resilient community. You learn the way an IP community could be damaged right down to a variety of modules and the way those modules interconnect with each other. you then discover new community resiliency positive aspects which have been built lately, categorised with recognize to the layout modules.
Building Resilient IP Networks is suitable to either firm and repair supplier clients of all sizes. whether the community connects to the web, fortifying IP networks for optimum uptime and prevention of assaults is needed for anyone’s business.
This e-book is a part of the Networking expertise sequence from Cisco Press®, which bargains networking execs invaluable details for developing effective networks, knowing new applied sciences, and construction winning careers.
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Extra resources for Building Resilient IP Networks
After all, to some people five nines means literally 5 minutes and 15 seconds of downtime per year. Others people believe that scheduled maintenance periods do not count as downtime. Some people think that a five-nines network can be built only with equipment that comes with five-nines certification on the brochure. Some people believe that five nines is an old concept from the legacy voice world and should not be imposed on the data network at all. This section differentiates two concepts often used interchangeably when discussing five nines: reliability and availability.
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Besides code, if you were to focus on user experience, any of the following incidents can cause what can be considered a network outage: 舦 Hardware failure舒Includes power supply failure, line card failure, as well as component failure 舦 Software failure舒Includes software defects; might result from a hardware failure (for example, memory corruption) 舦 Network failure (upstream)舒Usually happens in the service provider舗s network and is beyond control 舦 Server failure舒Could be hardware failure, or it could be caused by an operating system failure 舦 Application error舒Includes application defects, or it might be a design fault 舦 Human error舒Usually misconfiguration, causing software failure 舦 Disaster舒Acts of nature beyond your control 舦 Capacity problem舒An overwhelming number of user requests might congest the network, server, or application 舦 Attacks舒Caused by introduction of a virus into the system, or it might be a case of sabotage such as a denial-of-service (DoS) attack Therefore, no matter how well designed a resilient network is, a number of external factors might still cause network failure.
Building Resilient IP Networks by Kok-Keong Lee