| Parameter | Required Actions |
| Max. Rx Frame Size | Enter the maximum frame size in bytes that will be accepted on this DLCI. |
| Max. Tx Frame Size | The maximum frame size in bytes that will be transmitted on this DLCI. The range is from 0 to 4096. The default value is 1600. |
| Committed Excess Size (Rx) | The maximum burst size (temporary data rate above the CIR) in bits per second (b/s) that will be accepted on this DLCI. The range is from 0 to 2560000 b/s. The default is 0. Currently not implemented on the Passport 4400. |
| Committed Excess Size (Tx) | The maximum burst size (temporary data rate above the CIR) in bits per second (b/s) that will be transferred on this DLCI. The range is from 0 to 2560000 b/s. The default is 0. Currently not implemented on the Passport 4400. |
| Rx CIR | The data rate in b/s that the network agrees to deliver on this DLCI. The range is from 0 to 2560000 b/s. The default is 64000. |
| Tx CIR | The estimated data rate in b/s that the device on this DLCI will deliver to the network; the committed bandwidth to be allocated. The range is from 0 to 2560000 b/s. The default is 64000. |