VTAM® issues this message when the SSCP-PU session between VTAM and the physical unit with name rscname has ended. The PU was using DLUR dlurname to connect to VTAM.

rscname is the name of the resource.

dlurname is the network-qualified CP name of the dependent LU requester (DLUR) in the form netid.name. If the DLUR name cannot be determined ***NA*** (not available) will be displayed.