Administrator Guide

Verifying the DCB Configuration
To display DCB configurations, use the following show commands.
Table 23. Displaying DCB Configurations
Command Output
show qos dot1p-queue mapping
Displays the current 802.1p priority-queue mapping.
show dcb [stack-unit unit-number]
Displays the data center bridging status, number of PFC-enabled
ports, and number of PFC-enabled queues. On the master switch
in a stack, you can specify a stack-unit number. The range is from 0
to 5.
show qos priority-groups
Displays the ETS priority groups configured on the switch, including
the 802.1p priority classes and ID of each group.
show interface port-type pfc {summary | detail}
Displays the PFC configuration applied to ingress traffic on an
interface, including priorities and link delay.
To clear PFC TLV counters, use the clear pfc counters
interface port-type slot/port command.
show interface port-type pfc statistics
Displays counters for the PFC frames received and transmitted (by
dot1p priority class) on an interface.
You can use the show interface pfc statistics
command even without enabling DCB on the system.
show interface port-type ets {summary | detail}
Displays the ETS configuration applied to egress traffic on an
interface, including priority groups with priorities and bandwidth
allocation.
To clear ETS TLV counters, enter the clear ets counters
interface port-type slot/port command.
show interface port-type DCBx detail
Plays the DCBx configuration on an interface.
show stack-unit {0-11 | all} stack ports all
pfc details
Displays the PFC configuration applied to ingress traffic, including
priorities and link delay.
show stack-unit {0-11 | all} stack ports all
ets details
Displays the ETS configuration applied to ingress traffic on stack-
links, including priorities and link delay.
The following example shows the show dot1p-queue mapping command.
DellEMC(conf)# show qos dot1p-queue-mapping
Dot1p Priority: 0 1 2 3 4 5 6 7
Queue : 0 0 0 1 2 3 3 3
The following example shows the show dcb command.
DellEMC# show dcb
stack-unit 2 port-set 0
DCB Status : Enabled
PFC Port Count : 56 (current), 56 (configured)
PFC Queue Count : 2 (current), 2 (configured)
The following example shows the show qos priority-groups command.
DellEMC#show qos priority-groups
priority-group ipc
priority-list 4
set-pgid 2
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Data Center Bridging (DCB)