This solution is used within the U.S.. It combines standards associated with US: NTCIP Environmental Sensors with those for I–M: Wireless SNMPv3/TLS. The US: NTCIP Environmental Sensors standards include upper–layer standards required to implement center–to–field weather and environmental sensor communications. The I–M: Wireless SNMPv3/TLS standards include lower–layer standards that support secure infrastructure–to–mobile communications using simple network management protocol (SNMPv3).
| Level | DocNum | FullName | Description |
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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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| 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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| 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 1204 | NTCIP Environmental Sensor Station Interface Standard | This standard defines SNMP objects (data elements) for monitoring and controlling environmental sensor stations (especially road weather stations). |
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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 1204 | NTCIP Environmental Sensor Station Interface Standard | This standard defines SNMP objects (data elements) for monitoring and controlling environmental sensor stations (especially road weather stations). |
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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 | 3GPP Network | 3GPP Cellular Communications Network | This proxy standard represents a variety of 3GPP releases and underlying standards and technologies that rely upon cellular base stations for connectivity, including 3G, 4G, and the emerging 5G technologies. |
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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.
| Issue | Severity | Description | Associated Standard | Associated Triple |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Trumbull County Maintenance Dispatch=>maint and constr vehicle system control=>Trumbull County Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | ODOT District 4 Maintenance Garages=>maint and constr vehicle system control=>ODOT District 4 Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | ODOT District 4 Maintenance Vehicles=>maint and constr vehicle operational data=>ODOT District 4 Maintenance Garages |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Youngstown Maintenance Dispatch=>maint and constr vehicle system control=>City of Youngstown Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Other Municipality or Township Maintenance Garages=>maint and constr vehicle system control=>Other Municipality or Township Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | ODOT District 4 Office=>maint and constr vehicle system control=>ODOT District 4 Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Warren Maintenance Dispatch=>maint and constr vehicle system control=>Other Municipality or Township Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Warren Maintenance Dispatch=>maint and constr vehicle system control=>City of Warren Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Mahoning County Maintenance Vehicles=>maint and constr vehicle operational data=>Mahoning County Maintenance Dispatch |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Mahoning County Maintenance Dispatch=>maint and constr vehicle system control=>Mahoning County Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Other Municipality or Township Maintenance Vehicles=>maint and constr vehicle operational data=>Other Municipality or Township Maintenance Garages |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Other Municipality or Township Maintenance Vehicles=>maint and constr vehicle operational data=>City of Niles Maintenance Dispatch |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Niles Maintenance Dispatch=>maint and constr vehicle system control=>Other Municipality or Township Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Niles Maintenance Dispatch=>maint and constr vehicle system control=>City of Niles Maintenance Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Youngstown Maintenance Vehicles=>maint and constr vehicle operational data=>City of Youngstown Maintenance Dispatch |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Trumbull County Maintenance Vehicles=>maint and constr vehicle operational data=>Trumbull County Maintenance Dispatch |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Niles Maintenance Vehicles=>maint and constr vehicle operational data=>City of Niles Maintenance Dispatch |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | City of Warren Maintenance Vehicles=>maint and constr vehicle operational data=>City of Warren Maintenance Dispatch |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | OTIC Maintenance Dispatch Offices=>maint and constr vehicle system control=>OTIC Maintenance and Construction Vehicles |
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| Data not fully defined (medium) | Medium | Some of the data elements for this information flow are not fully defined. | (None) | Other Municipality or Township Maintenance Vehicles=>maint and constr vehicle operational data=>City of Warren Maintenance Dispatch |
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| Out of date (medium) | Medium | The standard includes normative references to other standards that have been subject to significant changes that can impact interoperability or security of systems and the industry has not specified if and how these updates should be implemented for deployments of this standard. | IETF RFC 6353 TLS for SNMP | (All) |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | ODOT District 4 Maintenance Vehicles=>environmental sensor data=>ODOT District 4 Maintenance Garages |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | ODOT District 4 Maintenance Vehicles=>environmental sensor data=>ODOT District 4 Office |
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| Accuracy of data | Low | The standard is missing accuracy requirements for some of its data, which may result in anomalous behavior. | (None) | OTIC Maintenance and Construction Vehicles=>environmental sensor data=>OTIC Maintenance Dispatch Offices |
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| Update data to SNMPv3 | Low | Data has been defined for SNMPv1, but needs to be updated to SNMPv3 format. | (None) | (All) |
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| Use TLS for SNMP Option | Low | The standard allows for multiple security mechanisms. The only defined mechanism that meets the requirements for C–ITS is the one based on TLS. | (None) | (All) |
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| Source | Destination | Flow |
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| City of Niles Maintenance Dispatch | City of Niles Maintenance Vehicles | maint and constr vehicle system control |
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| City of Niles Maintenance Dispatch | Other Municipality or Township Maintenance Vehicles | maint and constr vehicle system control |
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| City of Niles Maintenance Vehicles | City of Niles Maintenance Dispatch | maint and constr vehicle operational data |
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| City of Warren Maintenance Dispatch | City of Warren Maintenance Vehicles | maint and constr vehicle system control |
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| City of Warren Maintenance Dispatch | Other Municipality or Township Maintenance Vehicles | maint and constr vehicle system control |
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| City of Warren Maintenance Vehicles | City of Warren Maintenance Dispatch | maint and constr vehicle operational data |
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| City of Youngstown Maintenance Dispatch | City of Youngstown Maintenance Vehicles | maint and constr vehicle system control |
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| City of Youngstown Maintenance Vehicles | City of Youngstown Maintenance Dispatch | maint and constr vehicle operational data |
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| Mahoning County Maintenance Dispatch | Mahoning County Maintenance Vehicles | maint and constr vehicle system control |
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| Mahoning County Maintenance Vehicles | Mahoning County Maintenance Dispatch | maint and constr vehicle operational data |
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| ODOT District 4 Maintenance Garages | ODOT District 4 Maintenance Vehicles | environmental sensors control |
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| ODOT District 4 Maintenance Garages | ODOT District 4 Maintenance Vehicles | maint and constr vehicle system control |
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| ODOT District 4 Maintenance Vehicles | ODOT District 4 Maintenance Garages | environmental sensor data |
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| ODOT District 4 Maintenance Vehicles | ODOT District 4 Maintenance Garages | maint and constr vehicle operational data |
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| ODOT District 4 Maintenance Vehicles | ODOT District 4 Office | environmental sensor data |
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| ODOT District 4 Office | ODOT District 4 Maintenance Vehicles | environmental sensors control |
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| ODOT District 4 Office | ODOT District 4 Maintenance Vehicles | maint and constr vehicle system control |
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| Other Municipality or Township Maintenance Garages | Other Municipality or Township Maintenance Vehicles | maint and constr vehicle system control |
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| Other Municipality or Township Maintenance Vehicles | City of Niles Maintenance Dispatch | maint and constr vehicle operational data |
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| Other Municipality or Township Maintenance Vehicles | City of Warren Maintenance Dispatch | maint and constr vehicle operational data |
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| Other Municipality or Township Maintenance Vehicles | Other Municipality or Township Maintenance Garages | maint and constr vehicle operational data |
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| OTIC Maintenance and Construction Vehicles | OTIC Maintenance Dispatch Offices | environmental sensor data |
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| OTIC Maintenance Dispatch Offices | OTIC Maintenance and Construction Vehicles | environmental sensors control |
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| OTIC Maintenance Dispatch Offices | OTIC Maintenance and Construction Vehicles | maint and constr vehicle system control |
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| Trumbull County Maintenance Dispatch | Trumbull County Maintenance Vehicles | maint and constr vehicle system control |
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| Trumbull County Maintenance Vehicles | Trumbull County Maintenance Dispatch | maint and constr vehicle operational data |
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