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Describing Enterprise Data Center Considerations

Designing Basic Enterprise Campus Networks

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-1

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Server-Centric to Service-Centric

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-2

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Cisco Data Center Network Architecture Framework

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-3

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Example: Data Center Network Topology

IBM

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? 2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0—3-4

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Data Center Infrastructure Overview

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-5

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Defining the Data Center Access Layer
Can support Layer 2 or Layer 3 access Provides port density to server farm Supports dual and single-attached servers Provides high-performance, low-latency Layer 2 switching Mix of oversubscription requirements Many uplink options

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-6

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Density and Scalability Implications
Where are the issues? – Cabling – Power – Cooling

? 2007 Cisco Systems, Inc. All rights reserved.

7 DESGN v2.0—3-7

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Defining the Data Center Aggregation Layer
? Aggregates traffic to data center core ? Aggregates advanced application and security functions ? Maintains connection and session state for redundancy ? Layer 4–7 services: firewall, server load balancing, SSL, IDS ? Large STP processing load ? High flexibility and economies of scale

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-8

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Defining the Data Center Core Layer
Drivers for a data center core:
10-Gigabit Ethernet port density Administrative domains Anticipate future requirements

Key core characteristics:
Distributed forwarding architecture
Low latency switching 10-Gigabit Ethernet scalability Scalable IP multicast support

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-9

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Summary
? Enterprise data centers support a rich set of applications and servers. ? The SONA-based Cisco Enterprise Data Center Architecture provides a modular hierarchical approach to align data center resources with business applications.

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-10

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-11

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Enterprise Campus and Data Center Design Review
Analyze organizational requirements:

– Type of applications, traffic volume, and traffic pattern
– Redundancy and backup needed Characterize the existing network and sites: – Technology used and location of hosts, servers, terminals, and other end nodes Develop enterprise campus and enterprise data center network designs: – Based on requirements, implement two or three hierarchical layers.

– Select hardware and software components to support requirements.

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-1

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

Module Summary
Campus network design is influenced by application, environmental, and infrastructure device characteristics. An enterprise campus network is constructed hierarchically with building access, building distribution, and campus core layers. An enterprise data center network is constructed hierarchically, with data center access, data center aggregation, and data center core layers.

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-2

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.

? 2007 Cisco Systems, Inc. All rights reserved.

DESGN v2.0—3-3

The PDF files and any printed representation for this material are the property of Cisco Systems, Inc., for the sole use by Cisco employees for personal study. The files or printed representations may not be used in commercial training, and may not be distributed for purposes other than individual self-study.


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