24
C
HAPTER
1: W
EB
C
ACHING
C
ONCEPTS
AND
D
EPLOYMENT
What is the
Webcache?
The SuperStack
®
3 Webcache 1000 and 3000 are high-performance,
easily configurable webcache appliances. They offer the following
benefits to your network:
■
Reduced Network Traffic
The Webcache locally stores frequently accessed Web content and
quickly serves it to the end user on demand. This reduces the amount
of traffic on the WAN, providing significant cost benefits by reducing
the bandwidth requirement on expensive WAN links.
■
Reduced Web Latency
The end user receives Web content more quickly and with greater
quality of service if it is served from a local, high-speed Webcache
than if it is served from the Internet. Web object requests that have to
travel over long distances are limited to the speed and capacity of the
slowest link in the path. A Webcache that is closer to the client
machines reduces the potential for slow links and dropped data
packets.
■
Smoother Traffic Flow
Traffic surges can stress your network and server. The Webcache can
help smooth out network traffic and reduce delays in serving Web
content. As more users request the same Web content, it becomes
more likely that the content will be stored in the Webcache, and in
turn the Webcache becomes more effective at eliminating upstream
traffic.
■
Controlled Web Access
The Webcache allows you to control which client machines in your
network can access the Internet, and which Web sites can be
accessed. Access Logs show you who has used the Internet and where
they have been.
The Webcache and
3Com Network
Supervisor
The latest version of 3Com Network Supervisor is supplied on the
CD-ROM that accompanies the Webcache. 3Com Network Supervisor
provides powerful, intuitive network management for small to medium
enterprise networks. It automatically discovers network devices and
reports network activity, stress monitoring and performance metrics for
network managers. This information helps to provide the most efficient,
cost-effective use of network resources.
dua1611-5aaa04.book Page 24 Friday, November 29, 2002 8:56 PM
Содержание SUPERSTACK 3 WEBCACHE 3000
Страница 16: ...dua1611 5aaa04 book Page 16 Friday November 29 2002 8 56 PM...
Страница 22: ...22 dua1611 5aaa04 book Page 22 Friday November 29 2002 8 56 PM...
Страница 58: ...58 CHAPTER 1 WEB CACHING CONCEPTS AND DEPLOYMENT dua1611 5aaa04 book Page 58 Friday November 29 2002 8 56 PM...
Страница 78: ...78 CHAPTER 2 INSTALLING THE WEBCACHE dua1611 5aaa04 book Page 78 Friday November 29 2002 8 56 PM...
Страница 80: ...80 dua1611 5aaa04 book Page 80 Friday November 29 2002 8 56 PM...
Страница 102: ...102 CHAPTER 4 USING THE WEB INTERFACE dua1611 5aaa04 book Page 102 Friday November 29 2002 8 56 PM...
Страница 110: ...110 dua1611 5aaa04 book Page 110 Friday November 29 2002 8 56 PM...
Страница 126: ...126 CHAPTER 6 CONFIGURING DEPLOYMENT MODES dua1611 5aaa04 book Page 126 Friday November 29 2002 8 56 PM...
Страница 136: ...136 CHAPTER 8 SYSTEM TIME dua1611 5aaa04 book Page 136 Friday November 29 2002 8 56 PM...
Страница 138: ...138 dua1611 5aaa04 book Page 138 Friday November 29 2002 8 56 PM...
Страница 144: ...144 CHAPTER 9 MONITORING WEB ACCESS dua1611 5aaa04 book Page 144 Friday November 29 2002 8 56 PM...
Страница 178: ...178 CHAPTER 10 USING CONTENT FILTERING dua1611 5aaa04 book Page 178 Friday November 29 2002 8 56 PM...
Страница 180: ...180 dua1611 5aaa04 book Page 180 Friday November 29 2002 8 56 PM...
Страница 192: ...192 CHAPTER 11 CONTROLLING HOW WEB SITES ARE CACHED dua1611 5aaa04 book Page 192 Friday November 29 2002 8 56 PM...
Страница 204: ...204 CHAPTER 12 PRELOADING CONTENT dua1611 5aaa04 book Page 204 Friday November 29 2002 8 56 PM...
Страница 206: ...206 dua1611 5aaa04 book Page 206 Friday November 29 2002 8 56 PM...
Страница 218: ...218 CHAPTER 13 MONITORING SYSTEM EVENTS dua1611 5aaa04 book Page 218 Friday November 29 2002 8 56 PM...
Страница 234: ...234 dua1611 5aaa04 book Page 234 Friday November 29 2002 8 56 PM...
Страница 248: ...248 CHAPTER 17 SOFTWARE UPGRADES dua1611 5aaa04 book Page 248 Friday November 29 2002 8 56 PM...
Страница 250: ...250 dua1611 5aaa04 book Page 250 Friday November 29 2002 8 56 PM...
Страница 272: ...272 CHAPTER 18 COMMAND LINE INTERFACE dua1611 5aaa04 book Page 272 Friday November 29 2002 8 56 PM...
Страница 273: ...IX PROBLEM SOLVING Chapter 19 Problem Solving dua1611 5aaa04 book Page 273 Friday November 29 2002 8 56 PM...
Страница 274: ...274 dua1611 5aaa04 book Page 274 Friday November 29 2002 8 56 PM...
Страница 286: ...286 dua1611 5aaa04 book Page 286 Friday November 29 2002 8 56 PM...
Страница 294: ...294 APPENDIX A SAFETY INFORMATION dua1611 5aaa04 book Page 294 Friday November 29 2002 8 56 PM...
Страница 298: ...298 APPENDIX B CABLE SPECIFICATIONS AND PIN OUTS dua1611 5aaa04 book Page 298 Friday November 29 2002 8 56 PM...
Страница 312: ...312 APPENDIX E DEFAULT SETTINGS FOR THE WEBCACHE dua1611 5aaa04 book Page 312 Friday November 29 2002 8 56 PM...
Страница 334: ...334 APPENDIX I TRACE ROUTE SYMBOLS dua1611 5aaa04 book Page 334 Friday November 29 2002 8 56 PM...
Страница 348: ...348 GLOSSARY dua1611 5aaa04 book Page 348 Friday November 29 2002 8 56 PM...