These are Frame Relay parameters (N391, N392, N393) used to manage error thresholds and status polling in network interfaces. Guide to Action:
Based on available technical and medical documentation, "N(393)rar" does not refer to a single standard software tool or file. Instead, it most likely appears in one of two contexts: codes used in healthcare billing or Cisco Prime Access Registrar (RAR) configurations . 1. Healthcare Billing: Remittance Advice Remark (RAR) Codes N(393)rar
Knowing the source (e.g., a medical bill or a server log) will help identify the exact meaning. These are Frame Relay parameters (N391, N392, N393)