In the current release, you can enable probe-based failure detection by individual IPMP groups.
A new interface property, allow-xprobe, has been added to Oracle Solaris. This enhancement enables you to allow or disallow transitive probing on a per-IPMP group basis. Previously, you could only enable transitive probing on a per-system or per-exclusive zone basis by setting the value in the svc:/network/ipmp/config/transitive-probing Service Management Facility (SMF) property. The previous method unnecessarily limited the flexibilities of IPMP configuration.
For more information, see Selecting a Failure Detection Method.