By Kok-Keong Lee
The useful advisor to development resilient and hugely on hand IP networks
- Learn from an all-in-one advent to new good points 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 might help in supplying mission-critical details corresponding to video and voice services
- Work with configuration examples which are in response to real-world concerns and client requirements
- Get advice and top practices from box team of workers who've labored on a number of the greatest networks with stringent uptime specifications and SLAs
More businesses are development networks with the goal of utilizing them to behavior company. as the community has develop into this kind of strategic enterprise device, its availability is of extreme value to businesses and their provider services. The demanding situations for the pros chargeable for those networks contain making sure that the community is still up forever, retaining abreast of the newest applied sciences that aid retain uptime, and reacting to ever-increasing denial-of-service (DoS) attacks.
Building Resilient IP Networks is helping you meet these demanding situations. This useful consultant 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 realizing of the way to accomplish community availability by using instruments, layout approach, and Cisco IOS® Software.
With Building Resilient IP Networks, you study misconceptions approximately five-nines availability and learn how to concentration your cognizance at the genuine matters: appreciating the constraints of the protocols, realizing what has been performed to enhance them, and preserving abreast of these alterations. 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 all the way down to numerous modules and the way those modules interconnect with each other. then you definately discover new community resiliency good points which have been built lately, classified with admire to the layout modules.
Building Resilient IP Networks is proper to either company and repair supplier buyers of all sizes. whether the community connects to the net, fortifying IP networks for optimum uptime and prevention of assaults is essential for anyone’s business.
This publication is a part of the Networking expertise sequence from Cisco Press®, which bargains networking execs invaluable info for developing effective networks, knowing new applied sciences, and development profitable careers.
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Extra resources for Building Resilient IP Networks
Any degradation in response time is considered failure, even though the service might be available. The Truth About 50-ms Resiliency As mentioned earlier in the 舠The Five-Nines Approach舡 section, besides referencing the GR-512-Core document for expectations of downtime, the 50-ms reroute capability is often used to dictate expectations of network resiliency. This is another concept that plagues the networking community, and many managers demand it without realizing its relevancy and implications.
The assumption here is that as long as the edge switches are up, users should be able to gain access to the network. The status of the edge switches can be determined by pinging them via a network station every 30 seconds. This way, the results of the pings are collected and over a period of time, you can plot a graph to reflect the status of the access network. Figure 2-4 Measuring Network Availability Keep in mind, however, that gaining access to the network is only one aspect of measuring network availability.
Currently, he works as a consulting systems engineer for Cisco Systems, focusing on network architecture and IP core technologies. Kok-Keong lives with his wife in Singapore. Fung Lim, CCIE No. 11970, joined Cisco Systems in October 1999 and has been working closely with Internet service providers (ISPs) in areas pertaining to network design and operations, as well as service provider security. He also assisted in the rollout of one of the first MPLS networks in Asia Pacific. He graduated from the National University of Singapore, majoring in electrical engineering with a minor in management of information systems.