Configuring Ingress Hierarchical CoS on MIC and MPC Interfaces
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You can configure ingress CoS parameters, including hierarchical schedulers, on supported interfaces. In general, the supported configuration statements apply to per-unit schedulers or to hierarchical schedulers.
Junos OS does not support ingress queuing and ingress hierarchical CoS on AE interfaces. You can, however, configure standard CoS classification and rewrite rules on AE interfaces.
To configure ingress CoS for per-unit schedulers, include the following statements at
the [edit class-of-service interfaces
interface-name] hierarchy level:
[edit class-of-service interfaces interface-name] input-excess-bandwidth-share (proportional value | equal); input-scheduler-map map-name; input-shaping-rate rate; input-traffic-control-profile profile-name; unit logical-unit-number; input-scheduler-map map-name; input-shaping-rate (percent percentage | rate); input-traffic-control-profile profile-name;
To configure ingress CoS for hierarchical schedulers, include the
interface-set interface-set-name statement
at the [edit class-of-service interfaces] hierarchy level:
[edit class-of-service interfaces] interface-set interface-set-name { input-traffic-control-profile profile-name; input-traffic-control-profile-remaining profile-name; interface interface-name { input-excess-bandwidth-share (proportional value | equal); input-traffic-control-profile profile-name; input-traffic-control-profile-remaining profile-name; unit logical-unit-number; } }
By default, ingress CoS features are disabled interfaces. To enable ingress CoS on an
interface, configure the traffic-manager statement with
ingress-and-egress mode as shown in the following example:
chassis {
fpc 7 {
pic 0 {
traffic-manager {
mode ingress-and-egress;
}
}
}
}
Configured CoS features on the ingress are independent of CoS features on the egress.
HQoS MPC cards installed in MX240, MX480, MX960, MX2008, MX2010, and MX2020 routers have a hardware limitation with an ingress queuing CoS "ingress-and-egress" configuration.
Ingress queuing can be enabled for a maximum of 10 ports per MIC Slot, resulting in 20 ports per MPC2E-3D-NG HQoS and MPC3E-3D-NG HQoS line card with 10 ports per MIC slot. In the XM chip there are 16 loopback streams allocated per port group for PG0 and PG1, where PG0 is mapped to MIC slot 0 and PG1 is mapped to MIC slot 1. On enabling ingress queuing on a PIC slot, one loopback stream from the XM chip is allocated per interface from the respective port group. Because there are only 16 loopback streams, out of which 2 are used by default and 4 are used for tunnel interfaces and inline services, 10 streams are left for ingress CoS.
Change History Table
Feature support is determined by the platform and release you are using. Use Feature Explorer to determine if a feature is supported on your platform.
traffic-manager at the port level.