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DESIGN GUIDE - Data Center LAN Connectivity Design Guide REMOTE SALES OFFICE VoIP PILOTS SSG Series HEADQUARTERS OFFICE LARGE REGIONAL OFFICE EX Series M Series IC Series EX Series EX Series J Series WX Series/ WXC Series ISG Series/ IDP Series SSG Series WX Series/ WXC Series J Series PRIVATE WAN MANUFACTURING PLANT SMALL REGIONAL OFFICE WX Series/ WXC Series J Series INTERNET SSG Series EX Series EX Series STANDALONE OFFICE RETAIL STORE SSG Series SSG Series M Series DATA CENTER SA Series EX Series IC Series EX Series ISG Series/ IDP Series WX Series/ WXC Series Figure 1: The data center LAN in the enterprise network Trends and Challenges In addition to the requirements previously mentioned, the following trends must be considered in a data center LAN design: Centralization of Data Centers To reduce costs, simplify operations and comply with regulatory guidelines, more and more enterprises are consolidating their data centers. According to a 2006 Nemertes Research report1, 91 percent of companies interviewed were under compliance constraints and more than 50 percent of the companies consolidated their dispersed data centers into fewer larger data centers in the past 12 months, with even more planning to consolidate in the following 12 months. In addition to HA requirements ensuring nonstop operations, centralization raises new latency and security issues for the data center LAN. 6 Copyright © 2009, Juniper Networks, Inc.
