Dcb Pfc-Shared-Buffer-Size - Dell Z9500 Reference Manual

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You can configure dcb-policy on all sfm and backplane ports and assign dcb-

policy to the backplane ports.

dcb-policy buffer-threshold sfm all backplane all test

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 validation 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 <value> linecard <0-2/all> port-set

CONFIGURATION mode

Configure the maximum shared buffer available for PFC traffic. You can choose to

increase or decrease the shared buffer that is allocated in the system by default.

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 validation is performed to determine whether following condition is

Shared-pfc-buffer-size <= (Total-pfc-buffer-size - Σpfc priority <> buffer-size on

each port, priority).

Data Center Bridging (DCB)

Introduced on the Z9500.

Enter a number in the range from 0 to 11210.

Introduced on the Z9500.