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Fibre Channel logins takes place after a link is operational (AC = active state), using ELS (Extended Link Service) protocol. There are three different types of logins in Fibre Channel technology: * Fabric Login (FLOGI) - F_Port login, presence of fabric, requests a unique 24-bit address (FCID/PID), class of service and BB_Credit from the Fabric Login Server; * Port Login (PLOGI) - N_Port login, request login to another N_port, before any data exchange between ports; * Process Login (PRLI) - establishes communication between two FC-4 layer processes (SCSI), between two different N_Ports In the Login process different operational parameters are exchanged: * FC-PH version support * Classes of service supported * Frame size * Type of ACK supported: single frame, multiple frame * Number of buffer credits * Addressing * Time out values: E D TOV and R A TOV * Error recovery policies * Number of sequences ==See also== *Fibre Channel network protocols 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fibre Channel Logins」の詳細全文を読む スポンサード リンク
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