Dell C9000 series, Справочное руководство

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value Enter a number in the range of 0 to 7 to denote the priority to be
allocated to the dynamic buffer control mechanism
buffer-size Ingress buffer size
size Size of the ingress buffer in KB. Enter a number in the range of 0
to 7787. The default is 45 KB.
pause-threshold Buffer limit for pause frames to be sent
threshold-value Buffer limit at which the port sends the pause to peer in KB.
Enter a number in the range of 0 to 7787. The default is 10 KB.
resume-offset Buffer offset limit for resuming in KB
threshold-value Buffer offset limit at which the port resumes the peer in KB.
Enter a number in the range of 1 to 7787. The default is 10 KB.
shared-threshold-
weight Buffer shared threshold weight
size Weightage of the priorities on the shared buffer size in the
system. Enter a number in the range of 0 to 9. The default
shared threshold weight is 10.
Default The default size of the ingress buffer is 45 KB. The default buffer limit at which the port
sends the pause to peer and recommences the sending of packets to the peer is 10 KB.
The default threshold weight of the shared buffer space is 10.
Command Modes DCB-BUFFER-THRESHOLD mode
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.7(0.1) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S4810, S4820T, and S6000 platforms.
Usage Information For each priority, you can specify the shared buffer threshold limit, the ingress buffer
size, buffer limit for pausing the acceptance of packets, and the buffer offset limit for
resuming the acceptance of received packets. When PFC detects congestion on a
queue for a specified priority, it sends a pause frame for the 802.1p priority traffic to the
transmitting device.
You can use the
priority
command to set up both the administrative and peer-
related PFC priorities. For example, you can configure the intended buffer configuration
for all eight priorities. If you configure the number of lossless queues as 4 and if the
administrator-configured priorities configured within the DCB input policy is applied,
then the configuration for those priorities are pre-designed. However, if the peer-
provided priorities are applied, although a DCB input policy is present, the peer-
provided priorities become effective for buffer configuration. This method of
Data Center Bridging (DCB) 724