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Variable Message Format (VMF) Training

Variable Message Format (VMF) Training

Variable Message Format (VMF) Training:

Variable Message Format (VMF) Training Course Hands-on (Online, Onsite and Classroom Live!)

Currently used mainly by the US, this TDL is emerging as the fastest growing system in today’s modern armed forces.

The Variable Message Format (VMF) Training course familiarises the delegate with all aspects of current VMF operations. Our highly knowledgeable instructors have based this course around the latest versions of US MIL-STD-188-220, MIL-STD-2045-47001 and MIL-STD-6017 (differences between the different versions will be discussed during the course). The transmission protocols are considered in detail, as are the message headers, structure, and use of the K-Series VMF messages.  Considerations of interoperability are an important feature.

Variable Message Format (VMF) Training covers the following topics:

  • Variable Message Format (VMF): Introduction
  • Variable Message Format (VMF): MIL-STD-188-220 Frames
  • Variable Message Format (VMF): Network Access Control
  • Variable Message Format (VMF): Net Joining Procedures
  • Variable Message Format (VMF): Functional Area Designators (FADs) & K-Series Messages

And More…

What’s Included?
  • 3 Days of Variable Message Format (VMF) Training with an Authorized Instructor
  • All students receive a copy of our Variable Message Format (VMF) manual.
  • Certificate of Completion
  • 100% Satisfaction Guarantee
Related Courses
Customize It:
  • We can adapt this Variable Message Format (VMF) course to your group’s background and work requirements at little to no added cost.
  • If you are familiar with some aspects of this Variable Message Format (VMF) course, we can omit or shorten their discussion.
  • We can adjust the emphasis placed on the various topics or build the Variable Message Format (VMF) course around the mix of technologies of interest to you (including technologies other than those included in this outline).
  • If your background is nontechnical, we can exclude the more technical topics, include the topics that may be of special interest to you (e.g., as a manager or policy-maker), and present the Variable Message Format (VMF) course in manner understandable to lay audiences.
Audience/Target Group

The target audience for this Variable Message Format (VMF) course:

  • TDL operators
  • TDL certification and testing professionals
  • Engineers and technicians
  • Analysts
  • Other military and defense professionals
Variable Message Format (VMF) Training – Course Outlines:

VMF Introduction

  • A Short History of VMF
  • System Overview
  • Documents
  • Current and Planned Users

VMF Open Systems Interconnection (OSI) 7 Layer Model

  • 7 Layer Model Composition
  • Data Frame Compilation
  • Ethernet Principles
  • System Performance

MIL-STD-188-220 Frames

  • Frame Content
  • Types of Frame
  • Frame Elements

VMF Types of Service

  • Types of Service Description
  • Data Link Acknowledgements
  • Duplicate Detection
  • Window Method
  • Station Classes

VMF Network Access Control

  • Network Access Delay (NAD)
  • Probabilistic & Deterministic NAD
  • NAD Types
  • Frequency of Access Ranking

VMF Net Joining Procedures

  • Exchange Network Parameters (XNP)
  • XNP Messages
  • Network Controller
  • Static & Dynamic Stations

VMF Message & Header Syntax

  • Message Numbering
  • Cases & Conditions
  • Data Field Classification
  • Presence & Recurrence Indicators

VMF Application Header (MIL-STD-2045-47001)

  • Application Header Fields
  • Future Use Groups
  • Receipt / Compliance
  • Segmentation Reassembly
  • Interoperability

VMF Functional Area Designators (FADs) & K-Series Messages

  • Functional Area Designators
  • VMF K-Series Messages
  • Message Use Scenario

VMF Unit & Entity Reporting

  • Unit Reference Number (URN)
  • Unit Name (UN)
  • URN Look-Up Table
  • Entity Identity Serial Number (EISN)
  • Entity Identity Reference Number (EIRN)

VMF Radios & Modems

  •  VMF Capable Radios & Modems
  • Compliance

Inter / Intranet Protocols

  • Internet Protocol (IP)
  • IP Addresses
  • Transmission Control Protocol (TCP)
  • User Data Protocol (UDP)
  • N-Layer Pass-Through
  • Topology Update
  • Intranet Relay

VMF Data Forwarding

  •  Message Translation
  • Forwarding – TDL Differences
  • Gateways

VMF Network Management (NM)

  •  NM Responsibility
  • Initialization Data
  • VMF NM
  • Management & Test Tools

Interoperability (IO)

  • Interoperability Issues
  • DoD Standard Profile Implementation Conformance Statements (DSPICS)
  • Possible Solutions


  • XML Usage
  • XML Schemas

VMF Close Air Support

  • CAS Definition
  • Message Implementation
  • CAS Procedures

Variable Message Format (VMF) Training Variable Message Format (VMF) Training Course Wrap-up

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