19-20 FRX4000/FRX6000 4.0 User Guide, Rev 01l ACK Wait/Discard – The ACK (see ACK Wait/Hold) has not been received withina pre-determined number of transmissions of the switchover/switchbackcommand. Any received or held traffic will be discarded.l Backup Pend/Hold – (Primary DLCI only) A backup DLCI is attempting to belocated. Received data will be queued on the primary DLCI's queue.l Backup Pend/Discard – (Primary DLCI only) A backup DLCI is attempting tobe located. Received data will be discarded.Displaying SDLC PU StatusTo display the status of all PUs on an SNA port, press [C] at the Protocol Status Dis-plays Menu. When prompted, enter the RLP (FRX6000 only) and port numbers.Figure 19-10 SDLC PU Status Display[C],[F],[C] from Main MenuInformation in this Display:l Station Address – (specified when configuring the SNA port, described inChapter 9) identifies the PU, and must match the ADDR parameter set in themacro PU in the VTAM configuration. (The station address is usually set to C1for point-to-point SDLC lines, and in series C1, C2, C3, etc. for multidrop lines.)l Name – PU name configured in the PU parameters in the SNA Port record.l State – will be one of these:u Activeu Inactiveu Never_Activatedu Pending_Contact – waiting for Normal Response Modeu Pending_Discontact – waiting for Normal Disconnect Modeu Inoperational – due to failure of a higher resource (e.g., port)Node Name=node_xyzSDLC PU Status Display for RLP: 0 Port: 2Station Address Name StateD1 Pud1 Never_ActivatedD2 Pud2 Active