TY - GEN
T1 - BFD-based link latency measurement in software defined networking
AU - Kim, Seong Mun
AU - Yang, Gyeongsik
AU - Yoo, Chuck
AU - Min, Sung Gi
N1 - Funding Information:
This research was supported by the MIST(Ministry of Science and ICT), Korea, under the National Program for Excel-
Publisher Copyright:
© 2017 IFIP.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - 5G networks offer various network services based on software defined networking and network function virtualization. However, certain services are sensitive to link latency which is why it is consistently observed to provide high quality services. Previous studies have proposed two approaches to this task: measuring the latency by probe packets and link-layer discovery protocol (LLDP) packets. However, they have several limitations like flow rule preconfiguration, influence of the control plane traffic, and necessity of calibration. In this paper, Bidirectional forwarding detection (BFD) based approach is proposed. The approach measures latency at the data plane with simply implemented echo mode in Open vSwitch. We evaluates and compare the proposed approach to LLDP-based one in terms of single link latency and path latency, and error rate. In addition, we verify that the control plane throughput affects link latency according to the increased number of switches. As a result, the proposed approach can resolve the limitations and provides accuracy link latency.
AB - 5G networks offer various network services based on software defined networking and network function virtualization. However, certain services are sensitive to link latency which is why it is consistently observed to provide high quality services. Previous studies have proposed two approaches to this task: measuring the latency by probe packets and link-layer discovery protocol (LLDP) packets. However, they have several limitations like flow rule preconfiguration, influence of the control plane traffic, and necessity of calibration. In this paper, Bidirectional forwarding detection (BFD) based approach is proposed. The approach measures latency at the data plane with simply implemented echo mode in Open vSwitch. We evaluates and compare the proposed approach to LLDP-based one in terms of single link latency and path latency, and error rate. In addition, we verify that the control plane throughput affects link latency according to the increased number of switches. As a result, the proposed approach can resolve the limitations and provides accuracy link latency.
UR - http://www.scopus.com/inward/record.url?scp=85046642123&partnerID=8YFLogxK
U2 - 10.23919/CNSM.2017.8256023
DO - 10.23919/CNSM.2017.8256023
M3 - Conference contribution
AN - SCOPUS:85046642123
T3 - 2017 13th International Conference on Network and Service Management, CNSM 2017
SP - 1
EP - 6
BT - 2017 13th International Conference on Network and Service Management, CNSM 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th International Conference on Network and Service Management, CNSM 2017
Y2 - 26 November 2017 through 30 November 2017
ER -