Queue groups are objects created on the access or network Ethernet port or ingress forwarding plane of an IOM/IMM/XMA that allow SAP or IP interface forwarding classes to be redirected from the normal type of queue mapping to a shared queue. Queue groups may contain queues, policers, or a combination of the two depending on the type of queue group. The following types of queue groups are supported:
Access ingress supports a single queue group instance per ingress port, or multiple queue groups created at the ingress forwarding plane level of the IOM/IMM/XMA. Access ingress port queue groups may only contain queues, whereas access ingress forwarding plane queue groups may only contain policers.
Access egress supports the creation of multiple queue groups per egress port. These queue groups may only contain queues.
Network ingress supports the creation of multiple queue groups at the ingress forwarding plane level of the IOM/IMM/XMA. These queue groups may only contain policers.
Network egress supports the creation of multiple queue groups per egress port. These queue groups may contain queues only, or queues and policers.