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.
Platform-Specific Behavior
Use Feature Explorer to confirm platform and release support for specific features.
Use the following table to review platform-specific behavior for your platforms:
|
Platform |
Difference |
|---|---|
|
MX Series |
Only MX Series routers support the |