2022/12/24 by Carmine Scarpitta, Giulio Sidoretti, Scarpitta, Carmine +9 · 1 voice
Computer Science · Engineering · #FOS: Computer and information sciences #IPv6, Mobility, Handover, Networks, Security #Networking and Internet Architecture (cs.NI) #Software-Defined Networks and 5G #Wireless Networks and Protocols #cs.NI
paper · pdf · doi:10.48550/arxiv.2212.12627
openalex publication_date 2022/12/24 · arxiv published 2022/12/24 · arxiv updated 2022/12/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Software-Defined Wide Area Networks (SD-WANs) are used to provide services to enterprises with geographically dispersed locations in a flexible and efficient way. We focus on SD-WAN services based on the Segment Routing over IPv6 (SRv6) technology. Performance Monitoring solutions are needed in SD-WANs to detect performance degradation and outages, and optimize network operations. In this paper, we describe a high performance solution for end-to-end delay monitoring for SRv6 based SD-WAN services. The proposed solution leverages the Simple Two-way Active Measurement Protocol (STAMP) to monitor the delay of an SRv6 path between two nodes called STAMP Session-Sender and Session-Reflector. We describe three implementations of the STAMP Session-Sender and Session-Reflector for a Linux software router and compare their performance. In particular, two implementations are based on user space processing and one is based on eBPF. The results show that the eBPF-based implementation outperforms the user space implementations and has a negligible impact on the forwarding capacity of the Linux software router.