ClusterXL HA failover simulations

While knowing the theory is all well and good, there is nothing better for gaining confidence in the reliability of fault-tolerant solutions than practice. Let’s conduct a few tests in our lab that will illustrate the functionality of ClusterXL in HA mode using two exercises, one for orderly failover and another one for real-life simulation.

Manual failover test

Let’s introduce slight modifications to the security policy:

1. In the SmartConsole application, navigate to the SECURITY POLICIES | LeftSide_RA policy and disable the rule named SSH access to Router Accept:

Figure 14.11 – Disabling the existing firewall layer privileged access rule

2. Scroll down to the APCL & URLF, Content Awareness Inline Layer policy section and expand its parent rule.
3. Add two new rules above the existing rule for HTTP and HTTPS [1] (an APCL/URLF Layer cleanup rule [2] is shown for reference):
   1. One for...