Users Guide

Command Modes
● EXEC
● EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S4810 and S6000 platforms.
9.3(0.0) Introduced on the FC Flex IO module installed in the MXL 10/40GbE Switch.
Usage
Information
Use the show qos dcb-map command to display the enhanced transmission selection (ETS) and
priority-based flow control (PFC) parameters used to configure server-facing Ethernet ports. S5000
Ethernet ports are DCBx-enabled by default.
The following table describes the show qos dcb-map output shown in the example below.
Field Description
State Complete: All mandatory DCB parameters are correctly configured. In progress: The
DCB map configuration is not complete. Some mandatory parameters are not
configured.
PFC Mode PFC configuration in DCB map: On (enabled) or Off.
PG Priority group configured in the DCB map.
TSA Transmission scheduling algorithm used by the priority group: Enhanced
Transmission Selection (ETS).
BW Percentage of bandwidth allocated to the priority group.
PFC PFC setting for the priority group: On (enabled) or Off.
Priorities 802.1p priorities configured in the priority group.
Example
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
dcb pfc-shared-buffer-size
Configure the maximum amount of shared buffer size for PFC packets in kilobytes.
Syntax
dcb pfc-shared—buffer—size KB
Parameters
KB Enter a number in the range of 0 to7787.
Default The default is 832KB.
Command Modes CONFIGURATION mode
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
454 Data Center Bridging (DCB)