6.4.5.6. FailoverChainer

Configuring FailOverChainer

Figure 6.35. Configuring FailOverChainer

FailoverChainer is similar to ConnectChainer, and attempts to connect the destination defined by the router. However, if the destination is unreachable and the service uses DirectedRouter, Application-level Gateway attempts to connect the next destination set in the router.

Tip

FailoverChainer can be used to implement a simple high availability support for the protected servers.

FailoverChainer has the following options.

Keep availability state for

Application-level Gateway does not try to connect to an unreachable server until the time set in the Keep availability state for option expires.

Connection timeout

Assume that the server is unreachable if it cannot be connected for Connection timeout seconds.

Protocol action

The type of the protocol used in the server-side connection. The default is to use the same protocol as on the client side, but PNS can enforce the use of the TCP or the UDP protocol.

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