The duplex mode setting for a network adapter determines whether IP Performance Manager monitors the adapter for HighUtilization faults:

  • If duplex mode is full-duplex or half-duplex, IP Performance Manager calculates current utilization for the adapter and monitors the adapter for HighUtilization faults.

  • If duplex mode is unspecified, IP Performance Manager neither calculates current utilization for the network nor monitors the adapter for HighUtilization faults.

    A network adapter’s duplex mode setting is specified in the DuplexMode attribute, and its duplex mode source setting—the means by which the duplex mode is determined for the adapter—is specified in the DuplexSource attribute. The default value for DuplexMode is UNSPECIFIED, and the default value for DuplexSource is NONE.