excess-bandwidth-share
Syntax
excess-bandwidth-share (proportional value | equal);
Hierarchy Level
[edit class-of-service interfaces interface-set interface-set-name]
Description
Specify the method of sharing excess bandwidth in a hierarchical scheduler environment. With hierarchical schedulers, you can provide shaping and scheduling at the service VLAN level as well as other levels, such as the physical interface. You can also group a set of logical interfaces and then apply scheduling and shaping parameters to the logical interface set.
To configure CoS hierarchical schedulers, you must enable hierarchical
scheduling by including the hierarchical-scheduler
statement at the [edit interfaces]
hierarchy for
the physical interface. If you do not include this statement, the
interfaces on the MX Series router cannot use hierarchical interfaces.
The Enhanced Queuing DPC supports the following hierarchical scheduler characteristics:
Shaping at the physical interface level
Shaping and scheduling at the service VLAN interface set level
Shaping and scheduling at the customer VLAN logical interface level
Scheduling at the queue level
Options
equal |
Share excess bandwidth equally among the configured interfaces. |
proportional value |
(Default) Share excess bandwidth proportionally according to the specified value. In this mode, the excess bandwidth is shared at the ratio of the logical interface shaping rates.
|
This example sets the excess bandwidth sharing for an Enhanced Queuing DPC interface proportionally at a rate of 100 Mbps and a shaping rate of 80 Mbps applied to the interface through the output-traffic-control profile for scheduling and shaping:
[edit class-of-service interfaces interface-set example-interface-set] user@host# set excess-bandwidth-share proportional 100m user@host# set output-traffic-control-profile PIR-80Mbps
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 8.5.