NAD 3020 manual Data Center Network Architecture, Data Center Network Components

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Data Center Network Architecture

Design Guide

Figure 6. Alternative Network Configuration

Data Center Network Architecture

The architecture of the data center infrastructure must address the requirements necessary to create a highly available, scalable, and secure network. This section describes the basic architecture necessary to meet these goals. It is a synopsis of the Cisco Data Center Network Architecture; for details about this architecture, visit: http://www.cisco.com/en/US/solutions/ns340/ns517/ns224/ns304/net_design_guidance0900aecd80 0e4d2e.pdf.

Data Center Network Components

The terms front-end network and back-end network define the devices that comprise the infrastructure of the data center and their general role. The front-end network is the IP routing and switching environment. It provides client-to-server, server-to-server, and server-to-storage network connectivity. The back-end network supports the storage-area-network (SAN) fabric and connectivity between servers and other storage devices such as storage arrays and tape drives.

The front-end network contains two distinct functional areas called the aggregation and access layers. Figure 7 depicts the front-end network and the services available at each layer.

© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.

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Contents BladeSystem into the Cisco Data Switch 3020 for the HP c-ClassIntegrating the Cisco Catalyst Blade Center Network ArchitectureContents HP c-ClassBladeSystem Enclosure Overview IntroductionDesign Guide Design Guide Cisco Catalyst Blade Switch 3020 for HP Page 5 ofCisco Catalyst Blade Switch 3020 Features Spanning TreeDesign Guide Traffic Monitoring Link Aggregation Protocols Design Guide Figure 5. RSPAN ExampleData Center Network Architecture Data Center Network ComponentsAccess Layer Aggregation LayerHigh Availability High AvailabilityDesign Goals Design GuideHigh Availability for the Blade Servers Scalability Physical Port CountSlot Count Design GuideManagement Out-of-BandManagementSerial Console Port In-BandManagementDesign Guide Design and Implementation Details Network Management RecommendationsRecommended Topology Primary root switch failure and recovery Configuring the Cisco Catalyst Blade Switch 3020s Configuring the Aggregate SwitchesAdditional Aggregation-SwitchConfiguration Alternative Topology Configuring the Aggregate Switches Configuration DetailsConfiguring the Cisco Catalyst Blade Switch 3020s RPVST+ Configuration Port-ChannelConfigurationVLAN Configuration Inter-SwitchLink ConfigurationTrunking Configuration Server-PortConfiguration Server Default Gateway Configuration RSPAN Configuration Page 28 of
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3020 specifications

The NAD 3020 is a classic integrated amplifier that has gained a legendary status among audiophiles since its launch in 1978. Known for its incredible sound quality and value for money, the NAD 3020 has become a reference point in the realm of affordable audio equipment.

One of the main features of the NAD 3020 is its high current design, allowing it to drive a wide range of speaker impedances. This capability ensures that the amplifier can deliver a dynamic sound, characterized by a robust bass response and clear treble. With a power output of 20 watts per channel into 8 ohms, the NAD 3020 is often underestimated due to its modest specifications. However, it can produce remarkable sound pressure levels and handle transient peaks with ease.

The amplifier utilizes a simplified circuit design, which is one of its defining characteristics. This minimalist approach reduces potential signal distortion, enabling the amplifier to maintain sonic integrity. The use of discrete components rather than integrated circuits contributes to its rich, detailed audio reproduction, making it a favorite among purists.

Another key technology featured in the NAD 3020 is its unique power supply design. NAD engineers incorporated a toroidal transformer, which is known for its compact size and low electromagnetic interference. This results in cleaner power delivery, which is essential for maintaining audio clarity and depth.

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Throughout its decades-long legacy, the NAD 3020 has influenced countless audio products and remains a benchmark for entry-level amplification. Its combination of power, clarity, and affordability makes it a beloved choice for both new listeners and seasoned audiophiles seeking a dependable amplifier that doesn't compromise on sound quality. The NAD 3020 exemplifies how great engineering can lead to remarkable audio experiences, solidifying its place in the history of hi-fi audio.
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