A Multicast Scheduling Method Based on EVPN-VXLAN Extension in Data Center Networks
Nan Wu, Guozhen Dong, Wenjuan Xing, Shizhong Nie, Yaobo Xie · 2023
Data center networks need to provide various cloud services to a large number of users, which requires efficient and flexible management of network resources. However, the existing EVPN-VXLAN (Ethernet Virtual Private Network - Virtual Extensible Local Area Network) technology, which is widely used for network virtualization, cannot support multicast resource scheduling in the overlay network. Multicast service can save network bandwidth and reduce latency for high-demand applications, but it faces challenges of end-to-end delivery, path selection, and resource allocation in the data center EVPN-VXLAN network. This paper proposes a novel multicast scheduling method based on EVPN-VXLAN, which defines a new EVPN routing type to deliver multicast resource information and uses it for multicast routing selection and forwarding. The proposed method can improve the performance and efficiency of multicast service in the data center EVPN-VXLAN network at the overlay layer, and is compatible with the existing EVPN-VXLAN technology.