DCB
 
Symptom/Cause
Solution
show data-center-bridging (admin-details | operational-details | remote-details)
interface IFNAME is not showing any output even after configuring DCB
 
Interface is not up
LLDP agent is not enabled
TxRx is not enabled
Use these commands:
lldp-agent
set lldp enable txrx
lldp tlv ieee-8021-org-specific
Correct PFC operational details not shown in ON-AUTO mode
 
Interface is not up
LLDP agent is not enabled
Capabilities of peer are less than that of device
Set the cap of PFC:
priority-flow-control cap <0-8>
 
Note: When the device’s local port willing bit is NOT set (ON mode) and peer’s willing bit is set (AUTO mode):
-- Local machine.
Operational details == Admin details
-- Peer machine
Operational details == Remote details
Correct PFC operational details not shown in AUTO-AUTO mode
 
Interface is not up.
LLDP agent is not enabled.
Capabilities of port with lower MAC is lesser than that of the one with higher MAC
Set the cap of PFC:
priority-flow-control cap <0-8>
 
Note: When the device’s local port willing bit is set (AUTO mode) and peer’s willing is also set (AUTO mode):
for device’s MAC address < Peer’s MAC address
Operational details == Remote details
for device’s MAC address > Peer’s MAC address
Operational details == Admin details
Proper PFC operational details are not shown in ON-ON mode
 
Interface is not up.
LLDP agent is not enabled.
Capabilities of port with lower MAC is lesser than that of the one with higher MAC
Set the cap of PFC:
priority-flow-control cap <0-8>
 
Note: When the device’s local port willing bit is set (AUTO mode) and peer’s willing is also set (AUTO mode):
-- for device’s MAC address < Peer’s MAC address
Operational details == Remote details
-- for device’s MAC address > Peer’s MAC address
Operational details == Admin details
Not able to add any more traffic class groups
 
Interface is not up.
LLDP agent is not enabled.
Max traffic class group may be lesser than the number of traffic class groups added.
Check max traffic class group:
max-traffic-class-group <0-7>
Note: Use the no form of this command to set the maximum number of traffic classes to 0 which is the default.
If the value is 0, you can add priorities for all 8 traffic classes with the traffic-class-group command. When the number
of traffic classes is not 0, you can add priorities with the traffic-class-group command until the maximum is reached.
no max-traffic-class-group
Last modified date: 06/08/2023