Configuring The Qos Shaping Mode For Ethernet Interfaces - Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010 Configuration Manual

To account for different layer 2 encapsulations, you can configure the byte adjustment
application using QoS parameters. The byte adjustment is calculated differently for
frame shaping mode than cell shaping mode.
NOTE: You can also use the QoS cell mode application with QoS parameters to
configure the shaping mode for a port.
Related Topics

Configuring the QoS Shaping Mode for Ethernet Interfaces

You can configure the shaping mode for an Ethernet interface.
In frame mode, traffic shaping is controlled by the system. Shaping is based on the
number of bytes in the frame, without regard to cell encapsulation or padding
overhead; this is the default mode for all E Series routers.
In cell mode, shaping is controlled by the QoS application. Shaping is based on the
number of bytes in cells, and accounts for the ATM cell encapsulation and padding
overhead. This option is available only for Gigabit Ethernet interfaces configured on
the GE-2 line module, the GE-HDE line module, and the ES2 4G LM, and 10-Gigabit
Ethernet interfaces configured on the ES2 4G LM.
1.
2.
BEST PRACTICE: We recommend that you clear the statistics counters whenever
you change the QoS shaping mode. Otherwise, the statistics contain a mixture of
frame-based and cell-based values.
Related Topics
Chapter 20: Configuring QoS for Gigabit Ethernet Interfaces and VLAN Subinterfaces
Configuring the QoS Shaping Mode for Ethernet Interfaces on page 179
Byte Adjustment for ADSL and VDSL Traffic Overview on page 293
Cell Shaping Mode Using QoS Parameters Overview on page 281
Configure the Ethernet interface.
host1(config)#interface gigabitEthernet 6/0/0
Configure the shaping mode and specify frame or cell.
host1(config)#qos-shaping-mode cell
QoS Shaping Mode for Ethernet Interfaces Overview on page 178
interface gigabitEthernet
qos-shaping-mode
Configuring the QoS Shaping Mode for Ethernet Interfaces
179