To capture more complicated web applications, there are many possible PCA deployment architectures. They can include the use of multiple PCAs, multiple PCA instances, and various filtering mechanisms. Below, you can review example scenarios in which you can need assistance in configuring the PCA.
Note: If your web application environment meets one or more of the following criteria, it is
recommended that you contact Support or Professional Services before you begin configuration.
High-volume web applications. If you are delivering over 200 hits/s over SSL or over 400 hits/s over clear-text HTTP:
- You must split the traffic across multiple PCA instances.
- You must filter out the IP addresses of web servers from which you want to capture. You can
filter at the PCA level or the network level. Perform filtering at the network level, which lowers
the processing overhead on the PCA. Note: IP filtering is possible only if the IPs are not NAT'd internally. For more information, contact your network administrator.
Capturing a range of IP addresses. If you are capturing a range of 25 IPs or more on the PCA:
- You must create IP filters to drop content.
- You must use netmasks to limit the number of entries in your configuration.
- You must split the traffic across multiple PCA instances.