Cisco Systems DSC9148D8G48PK9 manual Verifying BBCredit Configuration

Chapter 4 Configuring Interface Buffers

Verifying BB_Credit Configuration

	Command	Purpose
Step 2
	switch(config)# interface fc1/1	Selects a Fibre Channel interface and enters
	switch(config-if)#	interface configuration submode.
Step 3
	switch(config-if)#switchport fcrxbufsize 2000	Reduces the data field size for the selected
		interface to 2000 bytes. The default is 2112
		bytes and the range is from 256 to 2112 bytes.

Verifying BB_Credit Configuration

To display BB_credit configuration information, perform one of the following tasks:

Command	Purpose
show interface	Displays the interface configuration.
show interface bbcredit	Displays the BB_credit configuration for all the
	interfaces.
show interface fc numbers bbcredit	Displays the BB_credit configuration for the
	specified interfaces.

For detailed information about the fields in the output from these commands, refer to the Cisco NX-OS Command Reference.

To display the BB_credit information, use the show interface bbcredit command (see Example 4-1and Example 4-2).

Example 4-1 Displays BB_credit Information

switch# show interface bbcredit fc2/1 is down (SFP not present)

...

fc2/17 is trunking

Transmit B2B Credit is 255 Receive B2B Credit is 12

Receive B2B Credit performance buffers is 375 12 receive B2B credit remaining

255 transmit B2B credit remaining fc2/18 is down (SFP not present) fc2/19 is down (SFP not present) fc2/20 is down (SFP not present)

fc2/21 is down (Link failure or not-connected)

...

fc2/31 is up

Transmit B2B Credit is 0 Receive B2B Credit is 12

Receive B2B Credit performance buffers is 48 12 receive B2B credit remaining

0 transmit B2B credit remaining

fc2/32 is down (Link failure or not-connected)

Example 4-2 Displays BB_credit Information for a Specified Fibre Channel Interface

switch# show interface fc2/31 bbcredit fc2/31 is up

	Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide
OL-29284-01, Release 6.x		4-25