Users Guide

110 Fabric OS Administrator’s Guide
53-1002920-02
Duplicate PWWN handling during device login
3
Oct 10 09:00:04 10.3.220.7 raslogd: AUDIT, 2008/10/10-08:28:16 (GMT),
[SEC-3021], INFO, SECURITY, admin/NONE/10.3.220.13/None/CLI, None/ras007/FID
128, , Event: login, Status: failed, Info: Failed login attempt via REMOTE, IP
Addr: 10.3.220.13.
Duplicate PWWN handling during device login
If a device attempts to log in with the same port WWN (PWWN) as another device on the switch, you
can configure whether the new login or the existing login takes precedence.
You can configure how duplicate PWWNs are handled by selecting an option in the Enforce
FLOGI/FDISC login prompt of the configure command:
• Setting 0: First login takes precedence over second login (default behavior).
• Setting 1: Second login overrides first login.
• Setting 2: The port type determines whether the first or second login takes precedence.
Setting 0, First login precedence
When setting 0 is selected, the first login takes precedence over the second. This is the default
behavior. Table 9 describes the behavior when setting 0 is selected.
Setting 1, Second login precedence
When setting 1 is selected, the second login takes precedence over the first. Table 10 describes
the behavior when setting 1 is selected.
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.
TABLE 9 Duplicate PWWN behavior: First login takes precedence over second login
Input port First port login is NPIV port First port login is F_Port
FLOGI received The new login is rejected and the new port is
persistently disabled.
The new login is rejected and the new port is
persistently disabled.
FDISC received The new FDISC is rejected. The new FDISC is rejected.
TABLE 10 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 persistently disabled.
New FDISC forces an explicit logout of original
FDISC on the previous NPIV port.