Cisco Nexus 5000 Series Switch Fabric Manager Software Configuration Guide, NX-OS 4.0 (OL-16598-01, June 2008)

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10-12
Nexus 5000 Series Switch Fabric Manager Software Configuration Guide
OL-16598-01
Chapter 10 Configuring Fibre Channel Interfaces
Verifying Fibre Channel Interfaces
• Momentary synchronization loss.
• Loose cable connection at one or both ends.
• Improper GBIC or SFP connection at one or both ends.
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 reenable the interface.
You can configure the switch to not disable an interface when the threshold is crossed.
See the Cisco Nexus 5000 Series CLI Configuration Guide to disable the bit error threshold for an
interface.
Note The switch generates a syslog message when bit error threshold events are detected, even if the interface
is configured not to be disabled by bit-error threshold events.
Configuring Buffer-to-Buffer Credits
The BB_credit scheme is not used for virtual Fibre Channel interfaces. To configure BB_credits for a
native Fibre Channel interface using Fabric Manager, perform this task:
Step 1 In the Physical Attributes pane, expand Switches > Interfaces, and then choose FC Physical.
You see the interface configuration in the Information pane.
Step 2 Choose the Bb Credit tab.
You see the buffer credits.
Step 3 Set any of the buffer-to-buffer credits for an interface.
Step 4 Click Apply Changes.
Verifying Fibre Channel Interfaces
The following topics describe the commands for displaying Fibre Channel interfaces:
• Verifying SFP Transmitter Types, page 10-13
• Obtaining Interface Statistics, page 10-13