shaping-rate (CoS Interfaces)
Syntax
shaping-rate rate <overhead bytes> ;
Hierarchy Level
[edit class-of-service interfaces interface-name], [edit class-of-service interfaces interface-name unit logical-unit-number]
Description
For logical interfaces on which you configure packet scheduling, configure traffic shaping by specifying the amount of bandwidth to be allocated to the logical interface.
Logical and physical interface traffic shaping
can be configured together. This means you can include the shaping-rate statement at the [edit class-of-service interfaces interface interface-name] hierarchy level and the [edit class-of-service interfaces interface interface-name unit logical-unit-number] hierarchy level.
If you configure traffic shaping at both the logical and physical
interface levels, the logical interface shaping credit is checked
and updated before the physical interface shaping credit.
Alternatively, you can configure a shaping rate
for a logical interface and oversubscribe the physical interface by
including the shaping-rate statement at the [edit
class-of-service traffic-control-profiles] hierarchy level.
With this configuration approach, you can independently control the
delay-buffer rate.
On the physical interface, you can set the Layer 2 overhead adjustment to the shaping rate calculation at egress.
Default
If you do not include this statement at
the [edit class-of-service interfaces interface interface-name unit logical-unit-number] hierarchy level,
the default logical interface bandwidth is the average of unused bandwidth
for the number of logical interfaces that require default bandwidth
treatment. If you do not include this statement at the [edit
class-of-service interfaces interface interface-name] hierarchy level, the default physical interface bandwidth
is the average of unused bandwidth for the number of physical interfaces
that require default bandwidth treatment.
Options
| rate | Peak rate, in
bits per second (bps). You can specify a value in bits per second
either as a complete decimal number or as a decimal number followed
by the abbreviation
|
| overhead | Layer 2 shaping overhead adjustment to be applied at egress (bytes).
|
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 9.2.
overhead option introduced in Junos OS Release 18.1.