Use this command to set port packet buffer configuration.
| flow-control | Sets the port packet buffers for flow control. |
| priority-groups | Sets the port packet buffers to use priority groups. |
Port buffer mode defaults to flow-control for all ports on the device.
All command modes.
When operating in a flow-control mode. Buffers are discarded at the ingress port. If port flow control (FC) or priority flow control (PFC) is enabled, pause frames are sent. In this mode, a single egress port can back up one or more priorities on ingress.
When operating in head-of-line blocking mode, the ingress buffers are broken by priority and thresholds are set on the egress queues to prevent a single egress queue from backing up an ingress port.
This example shows how to set the port packet buffers to use priority groups:
System(rw)->set port buffer mode priority-groups
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