Property reference

`sa.mapping.legacy_mid_selection`

The sa.mapping.legacy_mid_selection property enables the legacy MID Server selection algorithm during top-down discovery. Setting this property to true can lead to incorrect MID Server identification, especially in networks with overlapping IP ranges.

Default: false
Type: boolean
Application: Global

Key questions about this property

The answers below summarize the purpose, scope, default effect, and review scenarios for this property.

What does it do?	When enabled, this property causes Service Mapping to use an outdated MID Server selection algorithm, which can interfere with MID affinity features.
What area does it affect?	Service Mapping
What does the default mean?	The default value is "false", which means this behavior is disabled by default.
When should you review it?	Review this property when configuring MID Server settings or troubleshooting discovery issues.

Out of the box property record

Raw metadata from the property record.

Property name	`sa.mapping.legacy_mid_selection`
Sys ID	`13b8a9c183cc1b10cb209530ceaad352`
Type	boolean
Application	Global
Default value	`false`
Description	Enable Legacy MID selection algorithm
Updated	2026-10-18 19:34:58

Sources

Official references and nearby text excerpts where this property appears.

Brazil docs View supporting context

Context preview Snippet 1

... defined on this form and can then identify both the MID Server and the host using the location provided in the horizontal discovery schedule. Legacy MID Server selection: Verify that sa.mapping.legacy_mid_selection is set to false. When set to true, Service Mapping uses the legacy MID Server selection algorithm and the MID affinity properties have no effect, regardless of their configuration. To ...

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