This solution is used within the U.S.. It combines standards associated with US: NTCIP Message Sign with those for I–F: SNMPv3/TLS. The US: NTCIP Message Sign standards include upper–layer standards required to implement center–to–field message sign communications. The I–F: SNMPv3/TLS standards include lower–layer standards that support secure center–to–field and field–to–field communications using simple network management protocol (SNMPv3); implementations are strongly encouraged to use the TLS for SNMP security option for this solution to ensure adequate security.
| Level | DocNum | FullName | Description |
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| Mgmt | NTCIP 1201 | NTCIP Global Object (GO) Definitions | This standard defines SNMP objects (data elements) used by a wide range of field devices like time and versioning information. |
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| Mgmt | IETF RFC 3411 | An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks | This standard (RFC) defines the basic architecture for SNMPv3 and includes the definition of information objects for managing the SNMP entity's architecture. |
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| Mgmt | IETF RFC 3412 | Message Processing and Dispatching for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that assists in managing the message processing and dispatching subsystem of an SNMP entity. |
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| Mgmt | IETF RFC 3413 | Simple Network Management Protocol (SNMP) Applications | This standard (RFC) includes MIBs that allow for the configuration and management of remote Targets, Notifications, and Proxys. |
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| Mgmt | IETF RFC 3414 | User–based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3) | This standard (RFC) contains a MIB that assists in configuring and managing the user–based security model. |
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| Mgmt | IETF RFC 3415 | View–based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that supports the configuration and management of the View–based access control model of SNMP. |
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| Mgmt | IETF RFC 3416 | Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the message structure and protocol operations used by SNMPv3. |
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| Mgmt | IETF RFC 3418 | Management Information Base (MIB) for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the MIB to configure and manage an SNMP entity. |
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| Mgmt | IETF RFC 4293 | Management Information Base for the Internet Protocol (IP) | This standard (RFC) defines the MIB that manages an IP entity. |
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| Security | IETF RFC 6353 | Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines how to use the TLS authentication service to provide authentication within the access control mechanism of SNMP. |
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| ITS Application Entity | NTCIP 1203 | NTCIP Object Definitions for Dynamic Message Signs (DMS) | This standard defines SNMP objects (data elements) for monitoring and controlling dynamic message signs (such as variable message signs). |
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| Facilities | IETF RFC 3411 | An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks | This standard (RFC) defines the basic architecture for SNMPv3 and includes the definition of information objects for managing the SNMP entity's architecture. |
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| Facilities | IETF RFC 3412 | Message Processing and Dispatching for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that assists in managing the message processing and dispatching subsystem of an SNMP entity. |
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| Facilities | IETF RFC 3413 | Simple Network Management Protocol (SNMP) Applications | This standard (RFC) includes MIBs that allow for the configuration and management of remote Targets, Notifications, and Proxys. |
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| Facilities | IETF RFC 3414 | User–based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3) | This standard (RFC) contains a MIB that assists in configuring and managing the user–based security model. |
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| Facilities | IETF RFC 3415 | View–based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP) | This standard (RFC) contains a MIB that supports the configuration and management of the View–based access control model of SNMP. |
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| Facilities | IETF RFC 3416 | Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP) | This standard (RFC) defines the message structure and protocol operations used by SNMPv3. |
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| Facilities | NTCIP 1203 | NTCIP Object Definitions for Dynamic Message Signs (DMS) | This standard defines SNMP objects (data elements) for monitoring and controlling dynamic message signs (such as variable message signs). |
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| TransNet | IETF RFC 2460 | Internet Protocol, Version 6 (IPv6) Specification | This standard (RFC) specifies version 6 of the Internet Protocol (IPv6), also sometimes referred to as IP Next Generation or IPng. |
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| TransNet | IETF RFC 4291 | IP Version 6 Addressing Architecture | This standard (RFC) defines the addressing architecture of the IP Version 6 (IPv6) protocol. It includes the IPv6 addressing model, text representations of IPv6 addresses, definition of IPv6 unicast addresses, anycast addresses, and multicast addresses, and an IPv6 node's required addresses. |
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| TransNet | IETF RFC 4443 | Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification | This standard (RFC) defines the control messages to manage IPv6. |
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| TransNet | IETF RFC 793 | Transmission Control Protocol | This standard (RFC) defines the main connection–oriented Transport Layer protocol used on Internet–based networks. |
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| Access | NTCIP 2104 | NTCIP SP–Ethernet | This standard defines the Access Layer for center–to–field communications where the local connection is some variant of Ethernet. |
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One significant or possibly a couple minor issues. For existing deployments, the chosen solution likely has identified security or management issues not addressed by the communications solution. Deployers should consider additional security measures, such as communications link and physical security as part of these solutions. They should also review the management issues to see if they are relevant to their deployment and would require mitigation. For new deployments, the deployment efforts should consider a path to addressing these issues as a part of their design activities. The solution does not by itself provide a fully secure implementation without additional work.
| Source | Destination | Flow |
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| Fargo PW Operations Center | MnDOT D4 Traffic Signals | roadway dynamic signage data |
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| Fargo TOC | Fargo TOC DMS | roadway dynamic signage data |
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| Fargo TOC DMS | Fargo TOC | roadway dynamic signage status |
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| Fargo TOC DMS | MnDOT D4 DMS | dynamic sign coordination |
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| Fargo TOC DMS | NDDOT DMS | dynamic sign coordination |
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| Fargo TOC DMS | Other Roadway | dynamic sign coordination |
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| Fargo Traffic Signals | Moorhead PW Operations Center | roadway dynamic signage status |
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| FM Cameras | FM DMS | vehicle signage local data |
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| FM DMS | FM Maintenance and Construction Management | roadway dynamic signage status |
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| FM DMS | FM TOC | roadway dynamic signage status |
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| FM DMS | FM Traffic Operations | roadway dynamic signage status |
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| FM FAST Anti–icing Systems | MnDOT D4 Maintenance | roadway dynamic signage status |
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| FM FAST Anti–icing Systems | NDDOT Fargo Maintenance | roadway dynamic signage status |
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| FM Maintenance and Construction Management | FM DMS | roadway dynamic signage data |
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| FM TOC | FM DMS | roadway dynamic signage data |
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| FM TOC | MnDOT D4 DMS | roadway dynamic signage data |
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| FM TOC | NDDOT DMS | roadway dynamic signage data |
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| FM TOC | NDDOT Ramp Meters | roadway dynamic signage data |
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| FM Traffic Operations | FM DMS | roadway dynamic signage data |
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| MnDOT D4 DMS | Fargo TOC DMS | dynamic sign coordination |
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| MnDOT D4 DMS | FM TOC | roadway dynamic signage status |
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| MnDOT D4 DMS | MnDOT D4 TOC | roadway dynamic signage status |
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| MnDOT D4 DMS | MnTOC | roadway dynamic signage status |
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| MnDOT D4 DMS | Moorhead DMS | dynamic sign coordination |
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| MnDOT D4 DMS | Other Roadway | dynamic sign coordination |
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| MnDOT D4 Maintenance | FM FAST Anti–icing Systems | roadway dynamic signage data |
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| MnDOT D4 TOC | MnDOT D4 DMS | roadway dynamic signage data |
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| MnDOT D4 TOC | MnDOT D4 Traffic Signals | roadway dynamic signage data |
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| MnDOT D4 Traffic Signals | Fargo PW Operations Center | roadway dynamic signage status |
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| MnDOT D4 Traffic Signals | MnDOT D4 TOC | roadway dynamic signage status |
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| MnDOT D4 Traffic Signals | Moorhead PW Operations Center | roadway dynamic signage status |
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| MnTOC | MnDOT D4 DMS | roadway dynamic signage data |
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| MnTOC | Moorhead DMS | roadway dynamic signage data |
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| Moorhead DMS | MnDOT D4 DMS | dynamic sign coordination |
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| Moorhead DMS | MnTOC | roadway dynamic signage status |
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| Moorhead PW Operations Center | Fargo Traffic Signals | roadway dynamic signage data |
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| Moorhead PW Operations Center | MnDOT D4 Traffic Signals | roadway dynamic signage data |
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| Moorhead TOC | Moorhead Traffic Signals | roadway dynamic signage data |
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| Moorhead Traffic Signals | Moorhead TOC | roadway dynamic signage status |
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| NDDOT DMS | Fargo TOC DMS | dynamic sign coordination |
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| NDDOT DMS | FM TOC | roadway dynamic signage status |
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| NDDOT DMS | NDDOT TOC | roadway dynamic signage status |
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| NDDOT DMS | Other Roadway | dynamic sign coordination |
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| NDDOT Fargo Maintenance | FM FAST Anti–icing Systems | roadway dynamic signage data |
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| NDDOT Ramp Meters | FM TOC | roadway dynamic signage status |
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| NDDOT Ramp Meters | NDDOT TOC | roadway dynamic signage status |
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| NDDOT Ramp Meters | Other Roadway | dynamic sign coordination |
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| NDDOT TOC | NDDOT DMS | roadway dynamic signage data |
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| NDDOT TOC | NDDOT Ramp Meters | roadway dynamic signage data |
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| NDDOT TOC | NDDOT Traffic Signals | roadway dynamic signage data |
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| NDDOT Traffic Signals | NDDOT TOC | roadway dynamic signage status |
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| Other Roadway | Fargo TOC DMS | dynamic sign coordination |
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| Other Roadway | MnDOT D4 DMS | dynamic sign coordination |
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| Other Roadway | NDDOT DMS | dynamic sign coordination |
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| Other Roadway | NDDOT Ramp Meters | dynamic sign coordination |
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| West Fargo TOC | West Fargo TOC Signals | roadway dynamic signage data |
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| West Fargo TOC Signals | West Fargo TOC | roadway dynamic signage status |
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