Users Guide

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 congured. In progress: The
DCB map conguration is not complete. Some mandatory parameters are not
congured.
PFC Mode PFC conguration in DCB map: On (enabled) or O.
PG Priority group congured 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 O.
Priorities 802.1p priorities congured 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-buer-size
Congure the maximum amount of shared buer size for PFC packets in kilobytes.
Syntax
dcb pfc-shared—buffer—size KB
Parameters
KB Enter a number in the range of 0 to 7787.
Default The default is 832KB.
Command Modes CONFIGURATION mode
Command History
Version Description
9.8(0.0) Introduced on the S4048-ON.
9.7(0.0) Introduced on the S6000-ON and Z9500.
9.6(0.0) Introduced on the S5000.
9.3(0.0) Introduced on the S4810, S4820T, and S6000 platforms.
Usage Information Congure the maximum shared buer available for PFC trac. You can choose to increase or decrease the
shared buer that is allocated in the system by default. Congure the shared buer size less than the total
PFC buer size. If the buer size and DCB buer threshold settings are applied on one or more ports, a
Data Center Bridging (DCB)
581