EVPN Virtual Private Wire Service Flexible Cross-Connect Service
RFC 9744, “EVPN Virtual Private Wire Service Flexible Cross-Connect Service”, is a Proposed Standard document published in March 2025 by A. Sajassi, P. Brissette, J. Uttaro, J. Drake, S. Boutros, J. Rabadan. The canonical text is published by the RFC Editor.
Abstract
This document describes a new EVPN Virtual Private Wire Service (VPWS) service type specifically for multiplexing multiple attachment circuits across different Ethernet Segments (ESs) and physical interfaces into a single EVPN-VPWS service tunnel and still providing Single-Active and All-Active multi-homing. This new service is referred to as the EVPN-VPWS Flexible Cross-Connect (FXC) service. This document specifies a solution based on extensions to EVPN-VPWS (RFC 8214), which in turn is based on extensions to EVPN (RFC 7432). Therefore, a thorough understanding of RFCs 7432 and 8214 are prerequisites for this document.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9744 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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