Service Manual

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.
You must configure the shared buffer size to be less than the total PFC buffer size. If the buffer size and
DCB buffer threshold settings are applied on one or more ports, a validaiton is performed to determine
whether following condition is satisfied: Shared-pfc-buffer-size <= (Total-pfc-buffer-size - Σpfc priority
<> buffer-size on each port, priority).
If the preceding condition is not satisfied by the shared PFC buffer size value, the configuration is not
saved and a system logging message is generated stating that the shared buffer size that you attempt to
specify cannot be configured because of the existing total buffer space on the system being lower than
the shared buffer size. You must either enter a smaller value for the shared buffer size or increase the
total buffer size appropriately by using the dcb pfc-total- buffer-size command.
Syntax
dcb pfc-shared—buffer—size KB
Parameters
KB Enter a number in the range of 0 to 7787.
Default The default is 1 KB for S6000 platforms.
Command Modes CONFIGURATION mode
Data Center Bridging (DCB)
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