Applying A Dcb Map In A Switch Stack; Dcb Pfc-Shared-Buffer-Size - Dell S4810 Reference Manual

Hide thumbs Also See for S4810:

Table of Contents

Dell# show qos dcb-map dcbmap2

--------------------

PG:0 TSA:ETS

Priorities:0 1 2 4 5 6 7

PG:1 TSA:ETS

Priorities:3

Applying a DCB Map in a Switch Stack

Apply the same DCB map with PFC and ETS configuration to all stacked ports in a switch stack. You

cannot apply different DCB maps to different stacked switches. This functionality is supported on the

To remove all PFC and ETS settings applied to stacked ports from the DCB map and reset PFC and ETS to

their default settings, use the no dcb-map stack-unit all command.

Apply the specified DCB map on all

ports of the switch stack.

Configure the maximum amount of shared buffer size for PFC packets in kilobytes. This utility is

supported on the S4810 platform.

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.

dcb pfc-shared—buffer—size KB

The default is 1 KB for S6000 platforms.

Data Center Bridging (DCB)

dcb-map stack-unit all

stack-ports all dcb-map-

Enter a number in the range of 0 to 7787.

Command Mode

CONFIGURATION