HP StorageWorks 2/32 Brocade Fabric OS Message Reference - Supporting Fabric O - Page 147

13 FABR-1029 FABR-1029 Message , [FABR-1029], ,, INFO, , Port negotiated (mode = ). Probable Cause Indicates that a different flow control mode, as described in the message, is negotiated with the port at the other end of the link. The flow control is a mechanism of throttling the transmitter port to avoid buffer overrun at the receiving port. There are three types of flow control modes: • VC_RDY mode: Virtual-channel flow control mode. This is a proprietary protocol. • R_RDY mode: Receiver-ready flow control mode. This is the Fibre Channel standard protocol, that uses R_RDY primitive for flow control. • DUAL_CR mode: Dual-credit flow control mode. In both of the previous modes, the buffer credits are fixed, based on the port configuration information. In this mode, the buffer credits are negotiated as part of exchange link parameter (ELP) exchange. This mode also uses the R_RDY primitive for flow control. Recommended No action is required. Action Severity INFO FABR-1030 Message , [FABR-1030], ,, INFO, , fabric: Domain (was ). Probable Cause Indicates that the domain ID has changed as specified. Recommended No action is required. Action Severity INFO FABR-1031 Message , [FABR-1031], , FFDC, WARNING, , Maximum number of retries sending ILS from port exceeded. Probable Cause Indicates that fabric exhausted the maximum number of retries sending internal link service (ILS) to the iswitchd demon on the specified E_port. Recommended Run the top command to see if iswitchd is extremely busy or if another process is using excessive Action CPU resources. Severity WARNING Fabric OS Message Reference 99 53-1000437-01