Technical data

106 Brocade ServerIron ADX Advanced Server Load Balancing Guide
53-1003441-01
Sample configurations
2
Policy-based caching
Policy-based caching enables you to selectively cache some web sites but not others, on specific
cache servers. For example, an ISP can use a ServerIron ADX configured for policy-based caching to
redirect HTTP traffic to a series of web cache servers made by different vendors with different
caching criteria.
In the example shown in Figure 24, there are four cache servers with 2 cache servers in one group
(cache group 1) and 2 cache servers in another group (cache group 2). Policy-based caching is
applied for traffic destined to Web Server 1, Web Server 2, and Web Server 3.
FIGURE 24 Policy-based caching topology
Access Control List “101” is tied under Cache Group 1. The filter-acl 101 command diverts traffic to
cache 1 and cache 2 that was originally destined to Web Server 3 (IP address 10.1.1.1).