Defines the absolute limit beyond which IPs are declared unhealthy. If backup CNAMEs are provided for a property, then it's reasonable for all IPs to be declared unhealthy. The healthMax value is multiplied by the smaller of the timeoutPenalty and the errorPenalty. This check declares as down any server with a score greater than this product. The default value is null.

Configures a cutoff value that's computed from the median scores. Any server with a score over the cutoff value is considered down, and load isn't sent to it. The cutoff is computed from the minimum score across all data centers, for a given property and two object members: healthMultiplier and healthThreshold. The cutoff is either healthMultiplier (default value: 1.5) times the minimum score, or the healthThreshold (default value: 4), whichever is greater. See also healthThreshold within this object. For more information on how to determine server liveness, see the Global Traffic Management User Guide.

Configures a cutoff value that's computed from the median scores. Any server with a score over the cutoff value is considered down, and load isn't sent to it. See also healthMultiplier within this object. For more information on how to determine server liveness, see the Global Traffic Management User Guide.

Indicates the percent of load imbalance factor (LIF) for the domain. It lets GTM exceed the value configured for traffic distribution. For example, if the data center's traffic allocation is 25 percent and the LIF is 1.5, the demand can grow to 37.5 percent (25% × 1.5) before the load balancer starts shifting load away from it. If the LIF is 0, no load imbalance is allowed. However, internally, GTM adds one to the LIF to allow its use as a multiplier. The default LIF is 1.1, which is displayed as 10.0 percent. The value ranges from 0 to 1000000 percent.

For performance domains, this specifies a penalty value that's added to liveness test scores when data centers show an aggregated loss fraction higher than the penalty value. The penalty value is either maxUnreachablePenalty (minimum value is 0 and the default is null) or unreachableThreshold (decimal between 0 and 1. A value of 1.0 or null disables an unreachable penalty). See also unreachableThreshold within this object.

For performance domains, this specifies a penalty value that's added to liveness test scores when data centers have an aggregated loss fraction higher than this value. The value is a decimal between 0 and 1. A value of 1.0 or null disables an unreachable penalty. See also maxUnreachablePenalty within this object.

v1.7 The fraction of data centers that must be passing their liveness tests in order for the selection of live data centers to occur. For example, if this is set to 0.75 and only half the data centers are passing their liveness tests, then all data centers are handed out regardless of liveness test results. A null or 0 value means the feature is disabled and behavior is unchanged. The default value is null.

v1.3 Specifies what fraction of the servers need to respond to requests so GTM considers the data center up and able to receive traffic. For example, if your data center contains eight servers, and the minLiveFraction value is 0.5, then at least four servers need to respond to requests. Conversely, if five servers are down, and three servers are up, then GTM considers the entire data center down. Optional when a minLiveFraction value exists or not null.