Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

Procedure
PurposeCommand or Action
Enters configuration mode.switch# configuration terminal
Step 1
Selects a Fibre Channel interface and enters
interface configuration mode.
switch(config)# interface fc slot/port
Step 2
Prevents the detection of bit error threshold events
from disabling the interface.
switch(config-if)# switchport ignore
bit-errors
Step 3
Prevents the detection of bit error threshold events
from enabling the interface.
switch(config-if)# no switchport ignore
bit-errors
Step 4
Configuring Buffer-to-Buffer Credits
To configure BB_credits for a Fibre Channel interface, perform this task:
Procedure
PurposeCommand or Action
Enters configuration mode.switch# configuration terminal
Step 1
Selects a Fibre Channel interface and enters interface
configuration mode.
switch(config)# interface fc
slot/port
Step 2
Applies the default operational value to the selected
interface. The operational value depends on the port mode.
switch(config-if)# switchport
fcrxbbcredit default
Step 3
The default values are assigned based on the port
capabilities.
Assigns a BB_credit of 5 to the selected interface. The
range to assign BB_credits is between 1 and 64.
switch(config-if)# switchport
fcrxbbcredit 5
Step 4
Assigns this value if the port is operating in E or TE mode.
The range to assign BB_credits is between 1 and 64.
switch(config-if)# switchport
fcrxbbcredit 5 mode E
Step 5
Assigns this value if the port is operating in F mode. The
range to assign BB_credits is between 1 and 64.
switch(config-if)# switchport
fcrxbbcredit 5 mode Fx
Step 6
Displays the receive and transmit BB_credit along with
other pertinent interface information for this interface.
switch(config-if# do show int fc
slot/port
Step 7
The BB_credit values are correct at the time the
registers are read. They are useful to verify
situations when the data traffic is slow.
Note
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
472 OL-16597-01
Configuring Fibre Channel Interfaces
Configuring Buffer-to-Buffer Credits