Switch Port Attribute Default Values; About Sfp Transmitter Types - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Chapter 20 Configuring Interfaces
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
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A bit error rate threshold is detected when 15 error bursts occur in a 5-minute period. By default, the
switch disables the interface when the threshold is reached. You can to reenable the interface.
You can configure the switch to not disable an interface when the threshold is crossed. By default, the
threshold disables the interface.
Refer to the Cisco MDS 9000 Family CLI Configuration Guide to disable the bit error threshold for an
interface.
Regardless of disabling the switch port ignore bit-error threshold for an interface, the switch generates
Note
a syslog message when bit error threshold events are detected.

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.
Refer to the Cisco MDS 9000 Family CLI Configuration Guide to configure switch port attributes.

About SFP Transmitter Types

The small form-factor pluggable (SFP) hardware transmitters are identified by their acronyms when
displayed.
section on page
Table 20-5
Definition
Standard transmitters defined in the GBIC specifications
short wavelaser
long wavelaser
long wavelaser cost reduced
electrical
Extended transmitters assigned to Cisco-supported SFPs
CWDM-1470
CWDM-1490
CWDM-1510
CWDM-1530
CWDM-1550
OL-17256-03, Cisco MDS NX-OS Release 4.x
GBIC or SFP is specified to operate at 2 Gbps but is used at 4 Gbps.
Short haul cable is used for long haul or long haul cable is used for short haul.
Momentary sync loss.
Loose cable connection at one or both ends.
Improper GBIC or SFP connection at one or both ends.
Table 20-5 defines the acronyms used for SFPs (see the
20-22).
SFP Transmitter Acronym Definitions
"Displaying SFP Transmitter Types"
Acronym
swl
lwl
lwcr
elec
c1470
c1490
c1510
c1530
c1550
Cisco MDS 9000 Family Fabric Manager Configuration Guide
Fibre Channel Interfaces
20-21