Cisco Systems DSC9148D8G48PK9 manual Configuring System Default Port Mode F, Mode F if applicable

Chapter 2 Configuring Interfaces

Configuring Interfaces

Configuring System Default Port Mode F

The system default switchport mode F command sets the administrative mode of all Fibre Channel ports to mode F, while avoiding traffic disruption caused by the formation of unwanted Inter-Switch Links (ISLs). This command is part of the setup utility that runs during bootup after a write erase or reload. It can also be executed from the command line in configuration mode. This command changes the configuration of the following ports to administrative mode F:

•All ports that are down and that are not out-of-service.

•All F ports that are up, whose operational mode is F, and whose administrative mode is not F. This command does not affect the configuration of the following ports:

•All user-configured ports, even if they are down.

•All non-F ports that are up; however, if non-F ports are down, this command changes the administrative mode of those ports.

Restrictions

•To ensure that ports that are part of ISLs do not get changed to port mode F, configure the ports in port mode E, rather than in Auto mode.

•When the command is executed from the command line, switch operation remains graceful. No ports are flapped.

Detailed Steps

	To set the administrative mode of Fibre Channel ports to mode F in the CLI, follow these steps:
	Command	Purpose
Step 1
	switch# config t	Enters configuration mode.
Step 2
	switch(config)# system default	Sets the administrative mode of Fibre Channel ports to
	switchport mode F	mode F (if applicable).
	switch(config)# no system default	Sets the administrative mode of Fibre Channel ports to
	switchport mode F	the default (unless user configured).
Note	For detailed information about the switch setup utility, see the Cisco MDS 9000 Family NX-OS
	Fundamentals Configuration Guide.

Example 2-1shows the command in the setup utility, and Example 2-2shows the command from the command line.

Example 2-1 Setup Utility

Configure default switchport mode F (yes/no) [n]: y

Example 2-2 Command Line

switch(config)# system default switchport mode F

	Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
OL-29284-01, Release 6.x		2-23