Dynamic service flows are enabled in cable convergence networks which can include a
cable modem device, a
cable modem termination
system (CMTS), and an access gateway function (AGF) device. An access gateway function (AGF) device receives, from an access and
mobility management function (AMF) device of a
core network,
quality of service (QoS) information associated with a packet data unit (PDU) session of a
cable modem device. The AGF device determines, based on the QoS information, QoS match criteria information. The AGF device sends, to a
cable modem termination system (CMTS) associated with the cable
modem device and via an interface, such as a common open policy service (COPS) interface, between the AGF device and the CMTS, a
service flow creation message that includes the QoS match criteria information. Sending the
service flow creation message enables the CMTS to create a first
service flow between the CMTS and the cable
modem device, and the cable
modem device to create a second service flow between the cable modem device and the CMTS.