Users Guide

Verifying the DCB Configuration
To display DCB configurations, use the following show commands.
Table 3. Displaying DCB Configurations
Command Output
show qos dot1p-queue mapping
Displays the current 802.1p priority-queue
mapping.
show qos dcb-map map-name
Displays the DCB parameters configured in a
specified DCB map.
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 interface
port-type slot/port pfc
statistics
Displays counters for the PFC frames received and
transmitted (by dot1p priority class) on an interface.
show interface port-type slot/port 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 {stack-unit unit-number |
tengigabitethernet slot/port} command.
show interface
port-type slot/port 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 stack-unit unit-number
command.
Example of the show qos dot1p-queue-mapping Command
Dell#show qos dot1p-queue-mapping
Dot1p Priority : 0 1 2 3 4 5 6 7
Queue : 0 0 0 1 2 3 3 3
Dell#
Example of the show qos dcb-map map-name Command
Dell#show qos dcb-map dcbmap2
State :Complete
PfcMode:ON
--------------------
PG:0 TSA:ETS BW:50 PFC:OFF
Priorities:0 1 2 4 5 6 7
PG:1 TSA:ETS BW:50 PFC:ON
Priorities:3
Dell#
Data Center Bridging (DCB)
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