Name server will respond to the Node port request and it will send the list of devices it can contact. Query Name server for the list of devices Node port can contact with in a fabric. Node Port will request the switch Fabric controller to send it a Registered State Change Notification (RSCN) every time something in the fabric changes.įabric controller will accepts the SCR notification request with the switch. Step 7 (SCR – State Change Registration): Name server accepts the Node ports registration with Name server. Step 6 (Name Server Accepts registrations): Once PLOGI gets acknowledged then Node port can register with Name server for discovery of Target storage devices or SAN Devices. Switch will respond the node port request for port Login with Acknowledgement. Node port sends a PLOGI signal to Name server so that node is able to register with and send queries to the Name Server. The format of the FLOGI ACC is identical to the FLOGI request but the information contained within it will be specific to the responding switch/switch port and Fabric Identifier gets assigned to Node.
Switch will respond to the FLOGI with an FLOGI ACC. The FLOGI contains many bits of information about this initializing end device (N_Port). Now let’s look in to it.įLOGI is a process where a Device gets it Fabric address which is a 24 Bit address.įLOGI (Fabric Login) the first frame transmitted by an Node device that is attempting to attach to a switch. I have tried to categorize Device login in to steps. PLOGIīelow mentioned is the process explaining the Device Login process: All kind of devices need to be registered with Switch for communicating with other devices.ĭevice Login process categorized in to 2 process a.
Device Login process is a process when a new devices gets connected to a Fabric it gets registered with fabric so that it can communicate with other devices in the Fabric.Ī device communicating in the fabric can be a Host server with Solaris, windows, Linux or a storage device.
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