A factory IoT network host is a member of the active zone, yet it has no Fibre Channel address and does not appear as logged in. When does the switch assign that 24-bit address?
Select an answer to reveal the explanation.
Short Explanation
A Fibre Channel address is handed out at the login desk, not written on the guest list. You get the 24-bit address when FLOGI succeeds, and this host has not logged in, so zoning it changed nothing. A device-alias commit and a principal election do not mint that address.
Full Explanation
A Fibre Channel ID is a 24-bit address the switch assigns when it accepts a fabric login. The high 8 bits are the domain, and the rest identify the area and port on that switch. The factory host is in the active zone and still has no address because zoning does not log the host in and does not allocate an FCID. The address appears when FLOGI completes. Zoneset activation copies zones into the enforcement configuration. Members that are powered off or not linked stay unzoned-from-the-wire's point of view until they log in, and activation does not preassign their FCIDs. A device-alias commit distributes a friendly name for a WWPN. The name can exist before the device logs in, and the commit does not write an FCID into the name server. Principal switch election chooses who coordinates domain IDs for the switches. It does not hand every attached host a permanent address. Caveat: if the domain ID later changes, an existing host keeps its old FCID until it logs in again, so a new FLOGI is what refreshes the address. Operational check: bring the host link up, confirm FLOGI succeeds, and match the new FCID to the name-server entry for that WWPN.