Im-OFDP: An Improved OpenFlow-based Topology Discovery Protocol for Software Defined Network
Yong-pu Gu, Dong Li, Junqing Yu · 2020 IFIP Networking Conference (Networking) · 2020
Current controllers use the OpenFlow Discovery Protocol(OFDP) to explore the underlying network topology. For improving the performance and safety of OFDP, an improved protocol Im-OFDP is proposed by taking advantage of minimum vertex cover algorithm. Experiments demonstrate that Im-OFDP outperforms OFDP and OFDPv2 in terms of LLDP packet number, controller CPU load and safety.