Nortel Networks WEB OS 212777 - Manual (Page 205)

Web OS 10.0 Application Guide
Chapter 8: Application Redirection n 205
212777-A, February 2002
The network needs a solution that addresses the following key concerns:
n
The solution must be readily scalable
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The administrator should not need to reconfigure all the clients’ browsers to use proxy
servers.
Figure 8-2 Network with Web Cache Redirection
Adding an Alteon Web switch with optional Layer 4 software addresses these issues:
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Web cache servers can be added or removed dynamically without interrupting services.
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Performance is improved by balancing the cached Web request load across multiple serv-
ers. More servers can be added at any time to increase processing power.
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The proxy is transparent to the client.
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Frames that are not associated with HTTP requests are normally passed to the router.
Additional Application Redirection Options
Application redirection can be used in combination with other Layer 4 options, such as load
balancing metrics, health checks, real server group backups, and more. See
“Additional Server
Load Balancing Options” on page 128 for details.
A
B
C
Clients
Internet
Router
Client Switch
Client Switch
HTTP
Requests
HTTP requests
are redirected
Cache farm proxies
client requests