S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
12-19
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 12 Configuring Interfaces
Fibre Channel Interfaces
Switch Port Attribute Default Values
You can configure attribute default values for various switch port attributes. These attributes will be
applied globally to all future switch port configurations, even if you do not individually specify them at
that time.
To configure switch port attributes, follow these steps:
About SFP Transmitter Types
The small form-factor pluggable (SFP) hardware transmitters are identified by their acronyms when
displayed in the
show interface brief
command. If the related SFP has a Cisco-assigned extended ID,
then the
show interface
and
show interface brief
commands display the ID instead of the transmitter
type. The
show interface transceiver
command and the
show interface fc
slot
/
port
transceiver
command display both values for Cisco supported SFPs.
Table 12-5
defines the acronyms used in the
command output (see the
“Displaying Interface Information” section on page 12-20
).
Command
Purpose
Step 1
switch#
config t
Enters configuration mode.
Step 2
switch(config)#
no system default
switchport shutdown
switch(config)#
Configures the default setting for administrative state of an
interface as Up. (The factory default setting is Down).
Tip
This command is applicable only to interfaces for
which no user configuration exists for the
administrative state.
switch(config)#
system default
switchport shutdown
switch(config)#
Configures the default setting for administrative state of an
interface as Down. This is the factory default setting.
Tip
This command is applicable only to interfaces for
which no user configuration exists for the
administrative state.
switch(config)#
system default
switchport trunk mode auto
switch(config)#
Configures the default setting for administrative trunk mode
state of an interface as Auto.
Note
The default setting is trunk mode on.
Table 12-5
SFP Transmitter Acronym Definitions
Definition
Acronym
Standard transmitters defined in the GBIC specifications
short wave laser
swl
long wave laser
lwl
long wave laser cost reduced
lwcr
electrical
elec
Extended transmitters assigned to Cisco-supported SFPs
CWDM-1470
c1470
CWDM-1490
c1490
CWDM-1510
c1510