Port Shaping Management

Through configuring the port shaping function, the U2000 Web LCT can enable the flow control function at the Ethernet source port.

In the NE Explorer, select a board and choose Configuration > QoS Management > Port Shaping Management from the Function Tree.

On the TBE board, each port provides eight queues.

For the TBE board, the priority rules for port queues are as follows.

The priority of a queue with the shaping function enabled is higher than the priority of a queue with the shaping function disabled.
When the shaping function is enabled (or disabled) for all eight queues, queue 8 has the absolute priority, and the remaining bandwidth is allocated to queues 1-7 in the proportion of 1:2:4:8:16:32:64.

By default, the shaping function is disabled.

**Table 1** Parameter description of Port Shaping Management of the NE-Level
Field	Value	Description
Slot No	slot number-board name	Selects slot number when creating a port shaping.
Port Queue	For example: 1	Displays the port queue that can be configured.
PIR (kbit/s)	Values of parameters vary with different boards and products.	Displays the peak bandwidth.
PBS (byte)	Values of parameters vary with different boards and products.	Displays the buffer capacity of CBS.

**Table 2** Parameter description of Port Shaping Management of the Board-Level
Field	Value	Description
Port	For example: Port3	Selects the port requiring flow control.
Port Queue	For example: 1	Displays the port queue that can be configured.
Status	Enabled, Disabled	Sets whether to enable the port alignment.
CIR (kbit/s)	Values of parameters vary with different boards and products.	Sets the bandwidth that can be guaranteed of the sink port.
DCBS (kbyte)	Values of parameters vary with different boards and products.	Displays the buffer capacity of the sink port.
PIR (kbit/s)	Values of parameters vary with different boards and products.	Displays the peak bandwidth.
DMBS (kbyte)	Values of parameters vary with different boards and products.	Displays the buffer capacity of CBS.
Scheduling Mode	WRR, SP	If this parameter is set to SP, the SP algorithm is used for the service grooming on egress ports. The higher is the priority of the CoS corresponding to the queue, the higher is the priority of the queue. If this parameter is set to WRR, the WRR algorithm is used for the service grooming on egress ports.
Weight	1 to 255	Sets the weight of the queue.