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• QoS takes precedence over ingress rate limiting
• Ingress rate limiting is not enforced on trunked ports.
Per-Port NPIV login limit
The Per-Port NPIV login limit feature allows you to set a specific maximum NPIV login limit on
individual ports. This feature works in both Native and Access Gateway modes. Using this feature, you
can use additional tools to design and implement a virtual infrastructure. In Access Gateway mode,
this feature allows smaller login limits for F_Ports and larger limits for N_Ports. Note that N_Ports are
restricted by the NPIV login limit of the connecting port on the Edge switch.
Note the following aspects of this feature:
• Upgrading between Fabric OS v6.4.0 and v7.1.0 will retain the NPIV settings.
• The value that you set is persistent across reboots and firmware upgrades.
• This feature supports virtual switches, so each port can have a specific NPIV login limit value in
each logical switch.
• The login limit default is 126. This value will be set for a port when the portCfgDefault command is
used to reset port default values.
• Before changing the login limits, you must disable the port.
• This feature only applies to ports enabled for NPIV operation. To enable NPIV functionality for a
port, you can use the portCfgNPIVPort --enable command when the switch is in Fabric OS Native
mode. For details, refer to the Fabric OS Command Reference Manual .
Setting the login limit
Use the following procedure to set the NPIV login limit for a port.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Disable the port by entering the portdisable port command.
3. Enter the portcfgnpiv --setloginlimit [Slot/]Port loginlimit command to set the login limit. For
example, the following example sets the login limit on port 12 to 200.
portcfgnpivport --setloginlimit 12 200
Duplicate PWWN handling during device login
Handling of logins from two devices using the same PWWN follows standards for all Fabric OS
switches. Having two devices with the same PWWN logged into the fabric at the same time may not
be desirable as there have been cases when ports coming online get stuck in G_Port state in the AG
switch. You can configure three policies:
• Default - The Access Gateway switch will not accept a second login request from a PWWN when a
device with the same PWWN has already logged into the fabric. The second request with similar
PWWN will be rejected and the port will be persistently disabled with reason as "Duplicate Port
WWN detected."
• Enforced login - The second login request will have precedence over the existing login and Access
Gateway will accepts the login.
• Mixed - This option takes port type into consideration. The second login request will have
precedence over the existing login in case of a duplicate entry exit on the F_Port with an NPIV
Per-Port NPIV login limit
84 Access Gateway Administrator's Guide
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