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Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

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Verifying the DCB Configuration

To display DCB configurations, use the following show commands.

Table 1. Displaying DCB Configurations
Command Output
show 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 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 interface port-type slot/port command.

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 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.

Example of the show dot1p-queue mapping Command

Dell(conf)# show dot1p-queue-mapping
                                 Dot1p Priority: 0 1 2 3 4 5 6 7
                                 Queue         : 0 0 0 1 2 3 3 3
                              
Dell# show dcb
                                 stack-unit 0 port-set 0
                                 DCB Status : Enabled
                                 PFC Port Count : 56 (current), 56 (configured)
                                 PFC Queue Count : 2 (current),  2 (configured)
                              
Dell# show interfaces tengigabitethernet 0/49 pfc summary
                                 Interface TenGigabitEthernet 0/49
                                 Admin mode is on
                                 Admin is enabled
                                 Remote is enabled, Priority list is 4
                                 Remote Willing Status is enabled
                                 Local is enabled
                                 Oper status is Recommended
                                 PFC DCBx Oper status is Up
                                 State Machine Type is Feature
                                 TLV Tx Status is enabled
                                 PFC Link Delay 45556 pause quantams
                                 Application Priority TLV Parameters :
                                 --------------------------------------
                                 FCOE TLV Tx Status is disabled
                                 ISCSI TLV Tx Status is disabled
                                 Local FCOE PriorityMap is 0x8
                                 Local ISCSI PriorityMap is 0x10
                                 Remote FCOE PriorityMap is 0x8
                                 Remote ISCSI PriorityMap is 0x8
                                 
                                 Dell# show interfaces tengigabitethernet 0/49 pfc detail
                                 Interface TenGigabitEthernet 0/49
                                 Admin mode is on
                                 Admin is enabled
                                 Remote is enabled
                                 Remote Willing Status is enabled
                                 Local is enabled
                                 Oper status is recommended
                                 PFC DCBx Oper status is Up
                                 State Machine Type is Feature
                                 TLV Tx Status is enabled
                                 PFC Link Delay 45556 pause quanta
                                 Application Priority TLV Parameters :
                                 --------------------------------------
                                 FCOE TLV Tx Status is disabled
                                 ISCSI TLV Tx Status is disabled
                                 Local FCOE PriorityMap is 0x8
                                 Local ISCSI PriorityMap is 0x10
                                 Remote FCOE PriorityMap is 0x8
                                 Remote ISCSI PriorityMap is 0x8
                                 
                                 0 Input TLV pkts, 1 Output TLV pkts, 0 Error pkts, 0 Pause Tx pkts, 0 Pause Rx pkts
                              

The following table describes the show interface pfc summary command fields.

Table 2. show interface pfc summary Command Description
Fields Description
Interface Interface type with stack-unit and port number.
Admin mode is on; Admin is enabled PFC Admin mode is on or off with a list of the configured PFC priorities . When PFC admin mode is on, PFC advertisements are enabled to be sent and received from peers; received PFC configuration takes effect. The admin operational status for a DCBx exchange of PFC configuration is enabled or disabled.
Remote is enabled; Priority list Remote Willing Status is enabled Operational status (enabled or disabled) of peer device for DCBx exchange of PFC configuration with a list of the configured PFC priorities. Willing status of peer device for DCBx exchange (Willing bit received in PFC TLV): enabled or disabled.
Local is enabled DCBx operational status (enabled or disabled) with a list of the configured PFC priorities
Operational status (local port) DCBx operational status (enabled or disabled) with a list of the configured PFC priorities.
Port state for current operational PFC configuration:
  • Init: Local PFC configuration parameters were exchanged with peer.
  • Recommend: Remote PFC configuration parameters were received from peer.
  • Internally propagated: PFC configuration parameters were received from configuration source.
PFC DCBx Oper status Operational status for exchange of PFC configuration on local port: match (up) or mismatch (down).
State Machine Type Type of state machine used for DCBx exchanges of PFC parameters:
  • Feature: for legacy DCBx versions
  • Symmetric: for an IEEE version
TLV Tx Status Status of PFC TLV advertisements: enabled or disabled.
PFC Link Delay Link delay (in quanta) used to pause specified priority traffic.
Application Priority TLV: FCOE TLV Tx Status Status of FCoE advertisements in application priority TLVs from local DCBx port: enabled or disabled.
Application Priority TLV: ISCSI TLV Tx Status Status of ISCSI advertisements in application priority TLVs from local DCBx port: enabled or disabled.
Application Priority TLV: Local FCOE Priority Map Priority bitmap used by local DCBx port in FCoE advertisements in application priority TLVs.
Application Priority TLV: Local ISCSI Priority Map Priority bitmap used by local DCBx port in ISCSI advertisements in application priority TLVs.
Application Priority TLV: Remote FCOE Priority Map Status of FCoE advertisements in application priority TLVs from remote peer port: enabled or disabled.
Application Priority TLV: Remote ISCSI Priority Map Status of iSCSI advertisements in application priority TLVs from remote peer port: enabled or disabled.
PFC TLV Statistics: Input TLV pkts Number of PFC TLVs received.
PFC TLV Statistics: Output TLV pkts Number of PFC TLVs transmitted.
PFC TLV Statistics: Error pkts Number of PFC error packets received.
PFC TLV Statistics: Pause Tx pkts Number of PFC pause frames transmitted.
PFC TLV Statistics: Pause Rx pkts Number of PFC pause frames received
Dell#show interfaces tengigabitethernet 0/3 pfc statistics
                                 Interface TenGigabitEthernet 0/3
                                 
                                 Priority Rx XOFF Frames Rx Total Frames Tx Total Frames
                                 -------------------------------------------------------
                                 0        0              0               0
                                 1        0              0               0
                                 2        0              0               0
                                 3        0              0               0
                                 4        0              0               0
                                 5        0              0               0
                                 6        0              0               0
                                 7        0              0               0
                              
Dell(conf)# show interfaces te 0/0 ets summary
                                 Interface TenGigabitEthernet 0/0
                                 Max Supported TC Groups is 4
                                 Number of Traffic Classes is 8
                                 Admin mode is on
                                 Admin Parameters :
                                 ------------------
                                 Admin is enabled
                                 TC-grp    Priority#         Bandwidth    TSA
                                 0         0,1,2,3,4,5,6,7   100%         ETS
                                 1                           0%           ETS
                                 2                           0%           ETS
                                 3                           0%           ETS
                                 4                           0%           ETS
                                 5                           0%           ETS
                                 6                           0%           ETS
                                 7                           0%           ETS
                                 
                                 Priority# Bandwidth TSA
                                 0                           13%          ETS
                                 1                           13%          ETS
                                 2                           13%          ETS
                                 3                           13%          ETS
                                 4                           12%          ETS
                                 5                           12%          ETS
                                 6                           12%          ETS
                                 7                           12%          ETS
                                 Remote Parameters:
                                 -------------------
                                 Remote is disabled
                                 
                                 Local Parameters :
                                 ------------------
                                 Local is enabled
                                 TC-grp    Priority#         Bandwidth    TSA
                                 0         0,1,2,3,4,5,6,7   100%         ETS
                                 1                           0%           ETS
                                 2                           0%           ETS
                                 3                           0%           ETS
                                 4                           0%           ETS
                                 5                           0%           ETS
                                 6                           0%           ETS
                                 7                           0%           ETS
                                 
                                 Priority#                   Bandwidth    TSA
                                 0                           13%          ETS
                                 1                           13%          ETS
                                 2                           13%          ETS
                                 3                           13%          ETS
                                 4                           12%          ETS
                                 5                           12%          ETS
                                 6                           12%          ETS
                                 7                           12%          ETS
                                 Oper status is init
                                 Conf TLV Tx Status is disabled
                                 Traffic Class TLV Tx Status is disabled
                                 0 Input Conf TLV Pkts, 0 Output Conf TLV Pkts, 0 Error Conf TLV Pkts
                                 0 Input Traffic Class TLV Pkts, 0 Output Traffic Class TLV Pkts, 0 Error Traffic Class TLV
                                 Pkts
                              

The following table describes the show interface ets detail command fields.

Dell(conf)# show interfaces tengigabitethernet 0/0 ets detail
                                 Interface TenGigabitEthernet 0/0
                                 Max Supported TC Groups is 4
                                 Number of Traffic Classes is 8
                                 Admin mode is on
                                 Admin Parameters :
                                 ------------------
                                 Admin is enabled
                                 TC-grp    Priority#         Bandwidth    TSA
                                 0         0,1,2,3,4,5,6,7   100%         ETS
                                 1                           0%           ETS
                                 2                           0%           ETS
                                 3                           0%           ETS
                                 4                           0%           ETS
                                 5                           0%           ETS
                                 6                           0%           ETS
                                 7                           0%           ETS
                                 
                                 Priority# Bandwidth TSA
                                 0                           13%          ETS
                                 1                           13%          ETS
                                 2                           13%          ETS
                                 3                           13%          ETS
                                 4                           12%          ETS
                                 5                           12%          ETS
                                 6                           12%          ETS
                                 7                           12%          ETS
                                 Remote Parameters:
                                 -------------------
                                 Remote is disabled
                                 
                                 Local Parameters :
                                 ------------------
                                 Local is enabled
                                 TC-grp    Priority#         Bandwidth    TSA
                                 0         0,1,2,3,4,5,6,7   100%         ETS
                                 1                           0%           ETS
                                 2                           0%           ETS
                                 3                           0%           ETS
                                 4                           0%           ETS
                                 5                           0%           ETS
                                 6                           0%           ETS
                                 7                           0%           ETS
                                 
                                 Priority#                   Bandwidth    TSA
                                 0                           13%          ETS
                                 1                           13%          ETS
                                 2                           13%          ETS
                                 3                           13%          ETS
                                 4                           12%          ETS
                                 5                           12%          ETS
                                 6                           12%          ETS
                                 7                           12%          ETS
                                 Oper status is init
                                 Conf TLV Tx Status is disabled
                                 Traffic Class TLV Tx Status is disabled
                                 0 Input Conf TLV Pkts, 0 Output Conf TLV Pkts, 0 Error Conf TLV Pkts
                                 0 Input Traffic Class TLV Pkts, 0 Output Traffic Class TLV Pkts, 0 Error Traffic Class TLV
                                 Pkts
                              
Table 3. show interface ets detail Command Description
Field Description
Interface Interface type with stack-unit and port number.
Max Supported TC Group Maximum number of priority groups supported.
Number of Traffic Classes Number of 802.1p priorities currently configured.
Admin mode ETS mode: on or off.

When on, the scheduling and bandwidth allocation configured in an ETS output policy or received in a DCBx TLV from a peer can take effect on an interface.

Admin Parameters ETS configuration on local port, including priority groups, assigned dot1p priorities, and bandwidth allocation.
Remote Parameters ETS configuration on remote peer port, including Admin mode (enabled if a valid TLV was received or disabled), priority groups, assigned dot1p priorities, and bandwidth allocation. If the ETS Admin mode is enabled on the remote port for DCBx exchange, the Willing bit received in ETS TLVs from the remote peer is included.
Local Parameters ETS configuration on local port, including Admin mode (enabled when a valid TLV is received from a peer), priority groups, assigned dot1p priorities, and bandwidth allocation.
Operational status (local port) Port state for current operational ETS configuration:
  • Init: Local ETS configuration parameters were exchanged with peer.
  • Recommend: Remote ETS configuration parameters were received from peer.
  • Internally propagated: ETS configuration parameters were received from configuration source.
ETS DCBx Oper status Operational status of ETS configuration on local port: match or mismatch.
State Machine Type Type of state machine used for DCBx exchanges of ETS parameters:
  • Feature: for legacy DCBx versions
  • Asymmetric: for an IEEE version
Conf TLV Tx Status Status of ETS Configuration TLV advertisements: enabled or disabled.
ETS TLV Statistic: Input Conf TLV pkts Number of ETS Configuration TLVs received.
ETS TLV Statistic: Output Conf TLV pkts Number of ETS Configuration TLVs transmitted.
ETS TLV Statistic: Error Conf TLV pkts Number of ETS Error Configuration TLVs received.
Dell(conf)# show stack-unit all stack-ports all pfc details
                                 
                                 stack unit 0 stack-port all
                                 Admin mode is On
                                 Admin is enabled, Priority list is 4-5
                                 Local is enabled, Priority list is 4-5
                                 Link Delay 45556 pause quantum
                                 0 Pause Tx pkts, 0 Pause Rx pkts
                                 
                                 stack unit 1 stack-port all
                                 Admin mode is On
                                 Admin is enabled, Priority list is 4-5
                                 Local is enabled, Priority list is 4-5
                                 Link Delay 45556 pause quantum
                                 0 Pause Tx pkts, 0 Pause Rx pkts
                              
Dell(conf)# show stack-unit all stack-ports all ets details
                                 Stack unit 0 stack port all
                                 Max Supported TC Groups is 4
                                 Number of Traffic Classes is 1
                                 
                                 Admin mode is on
                                 Admin Parameters:
                                 --------------------
                                 Admin is enabled
                                 TC-grp    Priority#        Bandwidth    TSA
                                 ------------------------------------------------
                                 0         0,1,2,3,4,5,6,7  100%         ETS
                                 1                          -            -
                                 2                          -            -
                                 3                          -            -
                                 4                          -            -
                                 5                          -            -
                                 6                          -            -
                                 7                          -            -
                                 8                          -            -
                                 
                                 Stack unit 1 stack port all
                                 Max Supported TC Groups is 4
                                 Number of Traffic Classes is 1
                                 Admin mode is on
                                 Admin Parameters:
                                 --------------------
                                 Admin is enabled
                                 TC-grp    Priority#        Bandwidth    TSA
                                 ------------------------------------------------
                                 0         0,1,2,3,4,5,6,7  100%         ETS
                                 1                          -            -
                                 2                          -            -
                                 3                          -            -
                                 4                          -            -
                                 5                          -            -
                                 6                          -            -
                                 7                          -            -
                                 8                          -            -
                              
Dell(conf)# show interface tengigabitethernet 0/49 dcbx detail
                                 Dell#show interface te 0/49 dcbx detail
                                 
                                 E-ETS Configuration TLV enabled           e-ETS Configuration TLV disabled
                                 R-ETS Recommendation TLV enabled          r-ETS Recommendation TLV disabled
                                 P-PFC Configuration TLV enabled           p-PFC Configuration TLV disabled
                                 F-Application priority for FCOE enabled   f-Application Priority for FCOE disabled
                                 I-Application priority for iSCSI enabled  i-Application Priority for iSCSI disabled
                                 ----------------------------------------------------------------------------------
                                 
                                 Interface TenGigabitEthernet 0/49
                                 Remote Mac Address 00:00:00:00:00:11
                                 Port Role is Auto-Upstream
                                 DCBX Operational Status is Enabled
                                 Is Configuration Source? TRUE
                                 
                                 Local DCBX Compatibility mode is CEE
                                 Local DCBX Configured mode is CEE
                                 Peer Operating version is CEE
                                 Local DCBX TLVs Transmitted: ErPfi
                                 
                                 Local DCBX Status
                                 -----------------
                                 DCBX Operational Version is 0
                                 DCBX Max Version Supported is 0
                                 Sequence Number: 2
                                 Acknowledgment Number: 2
                                 Protocol State: In-Sync
                                 
                                 Peer DCBX Status:
                                 ----------------
                                 DCBX Operational Version is 0
                                 DCBX Max Version Supported is 255
                                 Sequence Number: 2
                                 Acknowledgment Number: 2
                                 Total DCBX Frames transmitted 27
                                 Total DCBX Frames received 6
                                 Total DCBX Frame errors 0
                                 Total DCBX Frames unrecognized 0
                              

The following table describes the show interface DCBx detail command fields.

Table 4. show interface DCBx detail Command Description
Field Description
Interface Interface type with chassis slot and port number.
Port-Role Configured DCBx port role: auto-upstream, auto-downstream, config-source, or manual.
DCBx Operational Status Operational status (enabled or disabled) used to elect a configuration source and internally propagate a DCB configuration. The DCBx operational status is the combination of PFC and ETS operational status.
Configuration Source Specifies whether the port serves as the DCBx configuration source on the switch: true (yes) or false (no).
Local DCBx Compatibility mode DCBx version accepted in a DCB configuration as compatible. In auto-upstream mode, a port can only received a DCBx version supported on the remote peer.
Local DCBx Configured mode DCBx version configured on the port: CEE, CIN, IEEE v2.5, or Auto (port auto-configures to use the DCBx version received from a peer).
Peer Operating version DCBx version that the peer uses to exchange DCB parameters.
Local DCBx TLVs Transmitted Transmission status (enabled or disabled) of advertised DCB TLVs (see TLV code at the top of the show command output).
Local DCBx Status: DCBx Operational Version DCBx version advertised in Control TLVs.
Local DCBx Status: DCBx Max Version Supported Highest DCBx version supported in Control TLVs.
Local DCBx Status: Sequence Number Sequence number transmitted in Control TLVs.
Local DCBx Status: Acknowledgment Number Acknowledgement number transmitted in Control TLVs.
Local DCBx Status: Protocol State Current operational state of DCBx protocol: ACK or IN-SYNC.
Peer DCBx Status: DCBx Operational Version DCBx version advertised in Control TLVs received from peer device.
Peer DCBx Status: DCBx Max Version Supported Highest DCBx version supported in Control TLVs received from peer device.
Peer DCBx Status: Sequence Number Sequence number transmitted in Control TLVs received from peer device.
Peer DCBx Status: Acknowledgment Number Acknowledgement number transmitted in Control TLVs received from peer device.
Total DCBx Frames transmitted Number of DCBx frames sent from local port.
Total DCBx Frames received Number of DCBx frames received from remote peer port.
Total DCBx Frame errors Number of DCBx frames with errors received.
Total DCBx Frames unrecognized Number of unrecognizable DCBx frames received.

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