Data Center FundamentalsCisco Press, 2003 - 1064 pagine Master the basics of data centers to build server farms that enhance your Web site performance
Today's market demands that businesses have an Internet presence through which they can perform e-commerce and customer support, and establish a presence that can attract and increase their customer base. Underestimated hit ratios, compromised credit card records, perceived slow Web site access, or the infamous "Object Not Found" alerts make the difference between a successful online presence and one that is bound to fail. These challenges can be solved in part with the use of data center technology. Data centers switch traffic based on information at the Network, Transport, or Application layers. Content switches perform the "best server" selection process to direct users' requests for a specific service to a server in a server farm. The best server selection process takes into account both server load and availability, and the existence and consistency of the requested content. Data Center Fundamentals helps you understand the basic concepts behind the design and scaling of server farms using data center and content switching technologies. It addresses the principles and concepts needed to take on the most common challenges encountered during planning, implementing, and managing Internet and intranet IP-based server farms. An in-depth analysis of the data center technology with real-life scenarios make Data Center Fundamentals an ideal reference for understanding, planning, and designing Web hosting and e-commerce environments. |
Sommario
Overview of Data Centers | 5 |
Data Center Architecture | 13 |
Chapter | 15 |
Chapter | 16 |
Data Center Services | 22 |
Server Architecture Overview | 31 |
Client and Server Packet Processing | 35 |
TCP and Server Applications | 41 |
Chapter 13 | 486 |
EtherChannels | 507 |
Summary | 521 |
NAT | 556 |
Chapter 14 | 560 |
Summary | 567 |
IBM Networking | 577 |
IBM Data Centers Today | 590 |
TCP Bulk Transfer Traffic Profile | 47 |
Configuring a Web Server | 56 |
Application Architectures Overview | 71 |
Multitier Applications | 77 |
Chapter 4 | 97 |
Multitier Design Case Study | 108 |
For Further Reading | 114 |
Data Center Design Overview | 117 |
Fully Redundant Layer 2 and Layer 3 Designs | 139 |
Fully Redundant Layer 2 and Layer 3 Designs with Services | 146 |
Summary | 157 |
Network Security Infrastructure | 169 |
Security | 183 |
Symmetric Encryption | 190 |
Virtual Private Networks | 196 |
Chapter 5 | 199 |
Server LoadBalancing Overview | 205 |
Key Concepts of Load Balancing | 213 |
Part II | 219 |
Server Health | 224 |
Summary | 235 |
IP TCP and UDP | 241 |
UDP | 299 |
Chapter 8 | 302 |
Summary | 306 |
HTTP Overview | 328 |
HTTP General Header | 344 |
Chapter 9 | 369 |
Chapter 10 | 397 |
DNS Resolution Process | 411 |
Chapter 11 | 416 |
Redundant Name Servers | 418 |
Summary | 438 |
Packetization | 453 |
Part III | 460 |
Control Protocols | 466 |
Streaming Products | 473 |
Layer 2 Protocol Essentials | 479 |
Security Protocols and Technologies | 597 |
U S Government and Cryptography | 609 |
Authentication Protocols and Technologies | 640 |
Network Management Security | 647 |
LoadBalancing Modes and Predictors | 653 |
Summary | 686 |
Server Management Interface | 696 |
Probe Types | 702 |
HTTP and HTTPS | 722 |
How Servers Track User Sessions | 736 |
Session Persistence for Server Clusters | 749 |
Persistence Mechanisms on Load Balancers | 753 |
Persistence Using Session Sharing Servers | 761 |
Cookie Sticky | 768 |
Cookie Active | 774 |
HTTP Redirection Sticky | 782 |
Case Study | 789 |
Summary | 797 |
Part V | 799 |
Using VLANs to Virtualize the Physical Data Center Infrastructure | 810 |
SpanningTree Considerations | 822 |
Internal Redundancy Considerations | 833 |
Data Center Design | 845 |
Summary | 862 |
Campus Core | 884 |
Management Network | 908 |
Summary | 916 |
Chapter 22 | 919 |
Performance Metrics Overview | 934 |
Appendixes | 961 |
Character Sets | 963 |
Appendix | 977 |
Video Encoding Mechanisms | 987 |
Appendix D | 995 |
Appendix | 1009 |
1025 | |