Egress Shaping per Queue

In addition to limiting transmission rate per port, which is done in the Bandwidth page, the device can limit the transmission rate of selected egressing frames on a per-queue per-port basis. Egress rate limiting is performed by shaping the output load.

The device limits all frames except for management frames. Any frames that aren’t limited are ignored in the rate calculations, meaning that their size isn’t included in the limit total.

To configure the egress shaping per queue, complete the following steps:

Procedure

Step 1

Click Quality of Service > General > Egress Shaping per Queue.

The Egress Shaping Per Queue page displays the rate limit (CIR) for each queue.

Step 2

Select an interface type (Port), and click Go.

Step 3

Select a Port, and click Edit.

This page enables shaping the egress for up to eight queues on each interface.

Step 4

Select the Interface.

Step 5

For each queue that is required, enter the following fields:

  • Enable Shaping—Select to enable egress shaping on this queue.

  • Committed Information Rate (CIR)—Enter the maximum rate (CIR) in Kbits per second (Kbps). CIR is the average maximum amount of data that can be sent.

Step 6

Click Apply. The bandwidth settings are written to the Running Configuration file.