This solution is used within Australia, Canada, the E.U. and the U.S.. It combines standards associated with NTP with those for I–I: UDP/IP. The NTP standards include standards required to reliably set time information in a subsystem. The I–I: UDP/IP standards include lower–layer standards that support the Network Time Protocol that allows NTP servers to provide time synchronization services to other NTP servers and clients.
| 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 | IETF RFC 5905 | Network Time Protocol Version 4: Protocol and Algorithms Specification | This standard (RFC) defines the protocol used to synchronize computer clocks via the Internet. |
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| Mgmt | IETF RFC 7384 | Security Requirements of Time Protocols in Packet Switched Networks | This document defines a set of security requirements for time protocols, focusing on the Precision Time Protocol (PTP) and the Network Time Protocol (NTP). This document also discusses the security impacts of time protocol practices, the performance implications of external security practices on time protocols, and the dependencies between other security services and time synchronization. |
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| Security | | Services not defined | The services related to this portion of the stack are relevant, but the solution does not offer these services and no development efforts are expected to address this omission. |
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| ITS Application Entity | No Standard Needed | No Standard Needed | The services related to this portion of the stack are not critical within the scope of this solution. |
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| Facilities | No Standard Needed | No Standard Needed | The services related to this portion of the stack are not critical within the scope of this solution. |
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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 768 | User Datagram Protocol | This standard (RFC) defines a connectionless, low bandwidth Transport Layer that is typically used with IP. |
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| Access | | Internet Subnet Alternatives | A set of alternative standards that includes any Subnet Layer method of connecting to the Internet. |
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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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| Akron–Canton Airport CV Service Monitoring Systems | Akron–Canton Airport | time local form |
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| Akron–Canton Airport CV Service Monitoring Systems | Akron–Canton Airport Connected Vehicle Roadside Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Akron Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Akron Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Barberton Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Barberton Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Cuyahoga Falls Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Cuyahoga Falls Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Green Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Green Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Hudson Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Hudson Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Kent Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Kent Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Stow Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Stow Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | City of Twinsburg Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | City of Twinsburg Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | County and City Connected Vehicles Roadside Equipment | time local form |
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| County and City CV Service Monitoring Systems | Other Municipalities Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | Other Municipalities Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | Portage County Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | Portage County Traffic Signal Roadway Equipment | time local form |
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| County and City CV Service Monitoring Systems | Summit County Maintenance Dispatch | time local form |
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| County and City CV Service Monitoring Systems | Summit County Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Akron Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Barberton Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Cuyahoga Falls Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Green Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Hudson Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Kent Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Stow Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | City of Twinsburg Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | ODOT ATMS | time local form |
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| Ohio CV Service Monitor System | ODOT Connected Vehicles Roadside Equipment | time local form |
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| Ohio CV Service Monitor System | ODOT Traffic Signal Control System | time local form |
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| Ohio CV Service Monitor System | Other Municipalities Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | Portage County Traffic Signal Roadway Equipment | time local form |
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| Ohio CV Service Monitor System | Summit County Traffic Signal Roadway Equipment | time local form |
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| OTIC CV Service Monitoring System | OTIC Central Dispatch | time local form |
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| OTIC CV Service Monitoring System | OTIC Connected Vehicles Roadside Equipment | time local form |
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