Medianet Reference Guide - Cisco

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Summary Chapter 3 Medianet Availability Design Considerations Finally, operational availability technologies were introduced to show how availability can be improved by automating and streamlining MTTR operations, including GOLD, EEM, ISSU, and OIR. 3-32 Medianet Reference Guide OL-22201-01
4 CHAPTER Medianet QoS Design Considerations This document provides an overview of Quality of Service (QoS) tools and design recommendations relating to an enterprise medianet architecture and includes high-level answers to the following: • Why is Cisco providing new QoS design guidance at this time? • What is Cisco’s Quality of Service toolset? • How can QoS be optimally deployed for enterprise medianets? QoS has proven itself a foundational network infrastructure technology required to support the transparent convergence of voice, video, and data networks. Furthermore, QoS has also been proven to complement and strengthen the overall security posture of a network. However, business needs continue to evolve and expand, and as such, place new demands on QoS technologies and designs. This document examines current QoS demands and requirements within an enterprise medianet and presents strategic design recommendations to address these needs. Drivers for QoS Design Evolution There are three main sets of drivers pressuring network administrators to reevaluate their current QoS designs (each is discussed in the following sections): • New applications and business requirements • New industry guidance and best practices • New platforms and technologies New Applications and Business Requirements Media applications—particularly video-oriented media applications—are exploding over corporate networks, exponentially increasing bandwidth utilization and radically shifting traffic patterns. For example, according to recent studies, global IP traffic will nearly double every two years through 2012 1 and the sum of all forms of video will account for close to 90 percent of consumer traffic by 2012 2 . 1. Cisco Visual Networking Index—Forecast and Methodology, 2007-2012 http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-481360 _ns827_Networking_Solutions_Whitd_Paper.html 2. Approaching the Zettabyte Era http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-481374 _ns827_Networking_Solutions_White_Paper.html OL-22201-01 Medianet Reference Guide 4-1
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Contents Application Intelligence a
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