Scaling the Network

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  • Upon completing this lesson, you will be able to: Describe the features and operation of NAT on Cisco routers Use Cisco IOS commands to configure NAT, given a functioning router Use show commands to identify anomalies in the NAT configuration, given an operational router Use debug commands to identify events and anomalies in the NAT configuration, given an operational router

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  • There are three types of NAT: static, dynamic, and overloading (PAT). Static NAT is one-to-one address mapping. Dynamic NAT addresses are picked. NAT overloading (PAT) allows you to map many inside addresses to one outside address. Use the show ip nat translation command to display the translation table and verify that translation has occurred,...

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  • For campus networks, Cisco recommends a hierarchical network design that distributes networking function at each layer through a layered organization. The hierarchical model enables the design of a modular topology using “building blocks” that are scalable and allow the network to meet evolving business needs. The hierarchical model is based on a modular design, which is easy to scale, understand, and troubleshoot because it follows a deterministic traffic pattern. The principle advantages of the hierarchical model are:...

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  • Deploying a successful fiber-to-the-premise (FTTP) network requires careful planning and execution. It is clear after many years of trials that FTTP is here to stay. Taking FTTP networks from the lab/field trial mode to full-scale network deployment presents many significant challenges for service providers. One of these challenges is deploying the network for the lowest possible cost, while creating a fiber network infrastructure that has the flexibility and reliability to last long into the future....

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  • Lecture Scaling Networks - Chapter 1 describe the use of a hierarchical network for a small business, describe recommendations for designing a network that is scalable, describe the type of switches available for small-to-medium-sized business networks, describe the type of routers available for small-to-medium-sized business networks, configure and verify basic settings on a Cisco IOS device.

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  • T he security of networked computers is all about making sure that the right people have access to the right information, and that they get it intact without anyone listening in as the information is transmitted. To accomplish those goals, you have to be sure that people are who they claim to be. You also have to have a way of dealing with security breaches while—and after— they occur, so you can figure out what is (or was) going wrong in order to correct the problem. The difference between security on a local area network (LAN) and security on the Internet is largely one of scale.

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  • Mục tiêu: hiểu các nguyên lý nền tảng của các dịch vụ lớp network, các mô hình dịch vụ lớp network, forwarding và routing, một router làm việc như thế nào, routing (chọn đường), xử lý với scale, các đề tài nâng cao: IPv6, mobility, hiện thực trong Internet.

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  • OpenVPN is a powerful, open source SSL VPN application. It can secure site-to-site connections, WiFi and enterprise-scale remote connections. While being a full-featured VPN solution, OpenVPN is easy to use and does not suffer from the complexity that characterizes other IPSec VPN implementations. It uses the secure and stable TLS/SSL mechanisms for authentication and encryption. This book is an easy introduction to this popular VPN application.

    pdf270p mikeng 08-12-2010 147 66   Download

  • This preface describes the purpose, intended audience, organization, and conventions for the Cisco IP Telephony Network Design Guide. This document serves as an implementation guide for Cisco AVVID (Architecture for Voice, Video and Integrated Data) networks based on Cisco CallManager Release 3.0(5). With such a high level of industry interest regarding IP telephony, customers are aggressively pursuing Cisco solutions for both large and small networks. Solutions based on Cisco CallManager Release 3.0(5) allow Cisco to deliver large-scale IP telephony systems with many capabilities....

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  • Managing a Microsoft Windows Network Environment, a five-day instructorled course, provides the knowledge required by Microsoft® Certified System Administrators (MCSAs). While Microsoft Certified System Engineers (MCSEs) are qualified to design and plan, deploy, manage, and troubleshoot complex Windows system and network environments in medium to large organizations, Network Administrators and Technical Support specialists perform more limited duties on a smaller scale, such as on the department level....

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  • A network designer that wants to design a scalable MPLS VPN solution is always faced with a number of scalability issues, several of them being related to the MPLS VPN architecture: n MPLS VPN uses internal BGP (IBGP) to propagate VPNv4 routes between PE routers. Default IBGP implementation requires a full-mesh of BGP sessions between PE routers—a design that is only appropriate for very small networks.

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  • Search engine technology has had to scale dramatically to keep up with the growth of the web. In 1994, one of the first web search engines, the World Wide Web Worm (WWWW) [McBryan 94] had an index of 110,000 web pages and web accessible documents. As of November, 1997, the top search engines claim to index from 2 million (WebCrawler) to 100 million web documents (from Search Engine Watch).

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  • At the end of this module, you will be able to Understand the challenges of traditional teaming Understand the rationale behind the team model for infrastructure deployment Understand the team model’s roles and responsibilities Understand some underlying team model principles Understand how to scale the team model for large and small projects Understand the risks involved in combining roles

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  • Recently the phenomenon of network traf®c self-similarity has received signi®cant attention in the networking community [10]. Asymptotic self-similarity refers to the condition in which a time series's autocorrelation function declines like a power law, leading to positive correlations among widely separated observations. Thus the fact that network traf®c often shows self-similarity means that it shows noticeable bursts at a wide range of time scalesÐtypically at least four or ®ve orders of magnitude. ...

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  • This book discusses interdisciplinary views of understanding and conceptualizing the changing global economy, by emphasizing a specific spatial perspective that mirrors unequal economic development, and selective specialization and growth processes.

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  • Packets are the basic unit of the Internet. Yet, most user operations involve more than one packet and user experience depends on the performance of the network on a set of packets. Thus it is not surprising that in today's Internet protocol (IP) networks sets of packets are starting to be used as the basis for network operations. The goals of the network operators include improving traf®c engineering by better load balancing and moving beyond best effort services. Operating on sets of packets is more ef®cient for network elements.

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  • Network support for variable bit rate (VBR) video needs to consider (1) properties of workload induced (e.g., signi®cant autocorrelations into far lags and heterogeneous marginal distributions), and (2) application-speci®c bounds on delay-jitter and statistical cell-loss probabilities. This chapter presents a quality-of-service (QoS) solution for such traf®c at each multiplexing point in a network. Heterogeneity in both-offered workload and quality-of-service requirements are considered. The network is assumed to be cell-switched with virtual circuits (VCs)...

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  • As the Enterprise Network Administrator for International Travel Agency, you are responsible for designing and implementing internetwork connectivity. To ensure success by reducing complexity, you start scaling the network by connecting only the Asia region and one local site, West Tasman, to the San Jose corporate headquarters and ISP2. When you are satisfied with the results, you will implement all other regions and sites.

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  • Internet-Based Services It all started with Internet Service Providers (ISPs) offering to host a company’s website and email. ISPs can offer economies of scale and could cost effectively maintain a permanent connection to the Internet and offer dial-up solutions to their customers. The customers in return get a permanent presence on the Internet for their website and permanent email delivery service.

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  • But even that information is not sufficient to understand the cell’s complexity, so the ultimate goal of such research is to identify and characterize the elaborate networks of gene and protein interactions in the entire system that contribute to disease. This concept of systems biology is based on the premise that a disease can be fully comprehended only

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