Ingress forwarding plane queue groups allow groups of SAPs on one or more ports, or on a LAG on the IOM, IMM, or XMA, to be bundled together from a QoS enforcement perspective with an aggregate rate limit to be enforced across all SAPs of a bundle. Multiple queue groups are supported per IOM/IMM/XMA or port on access ingress. These are implemented at the forwarding plane level on the ingress IOM so that SAPs residing on different ingress ports or SAPs on a LAG spread across ports on a specific IOM can be redirected to the same queue group.
When an ingress queue group template is defined, a forwarding plane queue group with the same name may be created on an ingress forwarding plane of an IOM, IMM, or XMA. Forwarding plane queue groups are named objects that act as a container for a group of policers. Queues are not supported in forwarding plane queue groups. Only hierarchical policers are supported in the forwarding plane queue group, instead of queues. These policers may be configured to use profile-aware behavior. The policers are created based on the defined policer IDs within the associated queue group template. Multiple forwarding plane queue groups of the same template name may be created on ingress if they have a different instance identifier. These are termed queue group instances. Each instance of a named queue group created on a forwarding plane is an independent set of policers structured as per the queue group template. Forwarding plane queue groups are only supported with Ethernet ports and may be created on IOMs, IMMs, or XMAs with ports in a LAG.