Displaying Bb_Credit Information - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 13 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
Command
Step 4
switch(config-if)# switchport fcrxbbcredit
extended 1500
switch(config-if)# no switchport
fcrxbbcredit extended 1500
Step 5
switch# do show interface fc3/2
fc3/2 is trunking
Hardware is Fibre Channel, SFP is short wave
laser w/o OFC (SN)
on

Displaying BB_Credit Information

To display the BB_credit information, use the show interface bbcredit command (see
and
Example 13-21 Displays BB_credit Information
switch# show interface bbcredit
fc2/1 is down (SFP not present)
...
fc2/17 is trunking
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
fc2/32 is down (Link failure or not-connected)
Example 13-22 Displays BB_credit Information for a Specified Fibre Channel Interface
switch# show interface fc2/31 bbcredit
fc2/31 is up
OL-18084-01, Cisco MDS NX-OS Release 4.x
Port WWN is 20:82:00:05:30:00:2a:1e
Peer port WWN is 20:42:00:0b:46:79:f1:80
Admin port mode is auto, trunk mode is
Port mode is TE
Port vsan is 1
Speed is 2 Gbps
Transmit B2B Credit is 255
Receive B2B Credit is 1500
Receive data field Size is 2112
...
Example 13-22).
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
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
Transmit B2B Credit is 0
Receive B2B Credit is 12
Purpose
Applies the extended BB_credit value of 1,500
credits to the selected interface. The valid range is
from 256 to 3,500 credits.
Clears the configured extended BB_credit
configuration for this port.
Displays the receive and transmit BB_credit
values along with other pertinent interface
information for this interface if the interface is in
the up state.
Note The receive BB_credit value reflects the
extended BB_credit configuration, if
applicable.
Cisco MDS 9000 Family CLI Configuration Guide
Buffer Credits
Example 13-21
13-39