Dell POWEREDGE M1000E - Manual (Page 110)

110 Fabric OS Administrator’s Guide
53-1002745-02
Duplicate PWWN handling during device login
3
Setting 2, Mixed precedence
When setting 2 is selected, the precedence depends on the port type of the first login.
• If the previous port is an F_Port, the first login takes precedence.
• If the previous port is an NPIV port, the second login overrides the first login.
Setting the behavior for handling duplicate PWWNs
Use the following procedure to set the behavior for handling duplicate PWWNs:
1. Connect to the switch and log in using an account with admin permissions.
2. Enter the switchDisable command to disable the switch.
3. Enter the configure command.
4. Enter y after the F_Port login parameters prompt.
F-Port login parameters (yes, y, no, n): [no] y
5. Enter one of the following options at the Enforce FLOGI/FDISC login prompt to select the
behavior for handling duplicate PWWNs.
• Enter 0 to have the first login take precedence over the second login (default).
• Enter 1 to have the second login override the first login.
• Enter 2 to have the port type determine the behavior.
If a duplicate login is received on an F_Port, the duplicate login is rejected and the old
login is preserved; if a duplicate login is received on an NPIV port the newer login is
accepted.
Enforce FLOGI/FDISC login: (0..2) [0] 1
6. Respond to the remaining prompts, or press Ctrl-D to accept the other settings and exit.
7. Enter the switchEnable command to re-enable the switch.
With any of these settings, detection of duplicate PWWNs results in a RASLog. Ports that are
restricted become persistently disabled, marked with the reason “Duplicate Port WWN detected”.
TABLE 9 Duplicate PWWN behavior: Second login overrides first login
Input port First port login is F_Port First port login is NPIV port
FLOGI received New login forces an explicit logout of original
login on the previous F_Port.
The previous F_Port is persistently disabled.
New login forces an explicit logout of original
FDISC on the previous NPIV port.
FDISC received New FDISC forces an explicit logout of original
login on the previous F_Port.
The previous F_Port is persistenly disabled.
New FDISC forces an explicit logout of original
FDISC on the previous NPIV port.
TABLE 10 Duplicate PWWN behavior: Port type determines which login takes precedence
Input port First port login is NPIV port First port login is F_Port
FLOGI received New login forces an explicit logout of original
FDISC on the previous NPIV port.
New login is rejected and the new port is
persistently disabled.
FDISC received New FDISC forces an explicit logout of original
FDISC on the previous NPIV port.
New FDISC is rejected.