Supported Platforms
Related Documentation
- MX Series
- Understanding Two-Level and Three-level Hierarchical CoS for Subscriber Interfaces on MX Series Routers
- Configuring Hierarchical CoS for a Subscriber Interface of Aggregated Ethernet Links
- Configuring Hierarchical Schedulers for CoS
- Hierarchical CoS on MPLS Pseudowire Subscriber Interfaces Overview
- Additional Information
- Junos OS Class of Service Library for Routing Devices
hierarchical-scheduler (Subscriber Interfaces on MX Series Routers)
Syntax
Hierarchy Level
Release Information
Statement introduced in Junos OS Release 10.1.
implicit-hierarchy option introduced in Junos OS Release 13.1.
Description
On MX Series routers with MPC/MICs, configure the parameters for hierarchical scheduling on the interface.
 | Note: To enable hierarchical scheduling on MX Series routers, configure the hierarchical-scheduler statement at each member physical interface level of a particular aggregated Ethernet interface as well as at that aggregated Ethernet interface level. On other routing platforms, it is enough if you include this statement at the aggregated Ethernet interface level. |
Options
implicit-hierarchy—Configure three-level hierarchical scheduling. When you include the implicit-hierarchy option, a hierarchical relationship is formed between the CoS scheduler nodes at level 1, level 2, and level 3. The implicit-hierarchy option is supported only on MPC/MIC subscriber interfaces and interface sets running over aggregated Ethernet on MX Series routers.
maximum-hierarchy-levels number—Configure two-level hierarchical scheduling. Specify the maximum number of hierarchical scheduling levels allowed for node scaling. The only supported value is 2. The maximum-hierarchy-levels option is supported on MPC/MIC or EQ DPC subscriber interfaces and interface sets running over aggregated Ethernet on MX Series routers.
- If you include the maximum-hierarchy-levels option, interface sets are allowed only at level 3; they are not allowed at level 2. In this case, if you configure a level 2 interface set, you generate Packet Forwarding Engine errors.
- If you do not include the maximum-hierarchy-levels option, interface sets can be at either level 2 or level 3, depending on whether the member logical interfaces within the interface set have a traffic control profile. If any member logical interface has a traffic control profile, then the interface set is a level 2 CoS scheduler node. If no member logical interface has a traffic control profile, the interface set is at level 3.
Required Privilege Level
view-level—To view this statement in the configuration.
control-level—To add this statement to the configuration.
Related Documentation
- MX Series
- Understanding Two-Level and Three-level Hierarchical CoS for Subscriber Interfaces on MX Series Routers
- Configuring Hierarchical CoS for a Subscriber Interface of Aggregated Ethernet Links
- Configuring Hierarchical Schedulers for CoS
- Hierarchical CoS on MPLS Pseudowire Subscriber Interfaces Overview
- Additional Information
- Junos OS Class of Service Library for Routing Devices
Published: 2013-08-01
Supported Platforms
Related Documentation
- MX Series
- Understanding Two-Level and Three-level Hierarchical CoS for Subscriber Interfaces on MX Series Routers
- Configuring Hierarchical CoS for a Subscriber Interface of Aggregated Ethernet Links
- Configuring Hierarchical Schedulers for CoS
- Hierarchical CoS on MPLS Pseudowire Subscriber Interfaces Overview
- Additional Information
- Junos OS Class of Service Library for Routing Devices
