Application Redirection (Ar); Combination Of Applications; Figure 1.2 Combinations Of Applications - Avaya P333R-LB User Manual

Chapter 1 Overview

Application Redirection (AR)

With the growing importance of the Internet as the organization's source of
information, normal operation of the LAN can be negatively impacted by
congestion on the network router to the Internet. The P333R-LB's AR redirects
packets from their original destination to an alternative server, based on AR
configuration. For more information, see Chapter 9, Application Redirection.

Combination of Applications

You can enable the P333R-LB to use various applications concurrently. For example,
it is possible to configure the same P333R-LB to perform Server Load balancing for
an Intranet web-server, Application Redirection for web traffic that is Internet-
bound, and Firewall Load Balancing for traffic that is Internet-bound. In some cases,
the same "type" of traffic can be given two different actions by the load balancer, as
illustrated in Figure 1.2. In these situations, it is necessary to tell the load balancer
which action to choose.
Figure 1.2
In Figure 1.2, web traffic to the Intranet server (Server Farm) can be configured to
either be directed to the web cache (Cache Server Farm), or bypass the web cache
and directly access the Intranet server. The latter configuration will free the web
cache resources to deal with Internet-bound traffic.
You can specify the preferred action by performing one of the following:
• Configure SLB to take precedence over AR.
• Configure AR can take precedence over SLB.
• Configure AR filters to redirect traffic from client/server addresses, using
wildcards.
• Configure AR filters to specify which traffic not to redirect ("no-ar" as service)
from specific client/server addresses, using wildcards.
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Combinations of Applications
Avaya P333R-LB User's Guide