Dell Command Line Reference Guide for the S4048–ON System 9.14.2.5

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show interface pfc

Displays the PFC configuration applied to ingress traffic on an interface, including priorities and link delay.

Syntax
show interface port-type slot/port[/subport] pfc {summary | statistics | detail | buffer-threshold}
Parameters
port-type slot/ port[/subport] pfc
Enter the port-type slot and port PFC information. Enter the subport number if a port is fanned-out into 10G ports.
{summary | statistics | detail | buffer-threshold}
Enter the keyword summary for a summary list of results or enter the keyword detail for a full list of results. Enter the keyword statistics to view pfc statistics. Use the keyword buffer-threshold to display the buffer threshold details.
NOTE: This command also enables you to view information corresponding to a range of ports. However, for Open Networking (ON) platforms the notation for specifying port range in the command is different from how you specify in non-ON platforms.
  • For non-ON platforms, you can specify multiple ports as slot/port-range. For example, if you want to display information corresponding to all ports between 1 and 4, specify the port range as show interfaces interface-type 1/1 - 4.
  • For ON platforms, you can specify multiple ports as slot/port/[subport] - slot/port/[subport]. For example, if you want to display information corresponding to all ports between 1 and 4, specify the port range as show interfaces interface-type 1/1/1 - 1/1/4.
Command Modes

EXEC Privilege

CONFIGURATION

Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S6100-ON.
9.9(0.0)
Added support to display the interface configurations corresponding to a range of ports.
9.8(1.0)
Introduced on the Z9100–ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the Z9500.
9.2.(0.0)
Down status messages added.
8.3.19.0
Introduced on the S4820T.
8.3.12.0
Introduced on the S4810.
8.3.16.0
Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information

To clear the PFC TLV counters, use the clear pfc counters interface command.

The following describes the show interface pfc summary command shown in the following example.

Field
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 the PFC admin mode is on, PFC advertisements are enabled to be sent and received from peers; received PFC configuration take 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 disable.
Local is enabled
DCBX operational status (enabled or disabled) with a list of the configured PFC priorities.
Operational status (local port)
Port state for current operational PFC configuration:
  • Init: Local PFC configuration parameters were exchanged with the peer.
  • Recommend: Remote PFC configuration parameters were received from the peer.
  • Internally propagated: PFC configuration parameters were received from the configuration source.
PFC DCBX Oper status
Operational status for the exchange of the PFC configuration on the local port: match (up) or mismatch (down).
State Machine Type
Type of state machine used for DCBX exchanges of the PFC parameters: Feature — for legacy DCBX versions; Symmetric — for an IEEE version.
TLV Tx Status
Status of the 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 the local DCBX port: enabled or disabled.
Application Priority TLV: SCSI TLV Tx Status
Status of ISCSI advertisements in application priority TLVs from the local DCBX port: enabled or disabled.
Application Priority TLV: Local FCOE Priority Map
Priority bitmap the local DCBX port uses in FCoE advertisements in application priority TLVs.
Application Priority TLV: Local ISCSI Priority Map
Priority bitmap the local DCBX port uses in ISCSI advertisements in application priority TLVs.
Application Priority TLV: Remote FCOE Priority Map
Status of FCoE advertisements in application priority TLVs from the remote peer port: enabled or disabled.
Application Priority TLV: Remote ISCSI Priority Map
Status of iSCSI advertisements in application priority TLVs from the 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.
Example (Summary)
DellEMC# show interfaces tengigabitethernet 1/4 pfc summary
Interface TenGigabitEthernet 1/4
  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

DellEMC# show interfaces tengigabitethernet 1/4 pfc detail
  Interface TenGigabitEthernet 1/4
  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

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