Show Linecard Port-Set Backplane All - Dell Z9500 Reference Manual

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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.

DCB-BUFFER-THRESHOLD mode

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 theprioritycommand 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 configuration provides an easy and flexible technique to

accommodate both administratively-configured and peer-configured priorities.

Dell(conf-dcb-buffer-thr)#priority 0 buffer-size 52 pause-

threshold 16 resume-offset 10 shared-threshold-weight 7

show linecard port-set backplane all

Displays the PFC buffer threshold assigned to a QoS policy.

show linecard <0-2/all> port-set <0-3/all> backplane all [pfc

buffer-threshold | details | statistics] | [ ets details]

This guide is platform-specific. For command information about other platforms,

refer to the relevant Dell Networking OS Command Line Reference Guide.

The following is a list of the Dell Networking OS version history for this command.

Introduced on the Z9500.

Enter the keyword detail for a full list of results.

Data Center Bridging (DCB)