EXFO (www.exfo.com) and CENX (www.cenx.com) are teaming up to deploy off-net service-level agreement (SLA) monitoring for Carrier Ethernet services.With the integration of EXFO's scalable and flexible service assurance technology, the CENX System proactively monitors each Ethernet virtual connection (EVC) from the CENX exchange to the off-net ESLs. EXFO's BrixNGN Carrier Ethernet Service Assurance System utilizes a scalable vendor-agnostic methodology to monitor any EVC regardless of the type of vendor equipment at the demarcation points.