Toledo Regional ITS Architecture (2021)

US: NTCIP Message Sign - SNMPv3/TLS

Description

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.

Includes Standards

Level	DocNum	FullName	Description
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.
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.
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.
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.
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.
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.
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.
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.
Mgmt	IETF RFC 4293	Management Information Base for the Internet Protocol (IP)	This standard (RFC) defines the MIB that manages an IP entity.
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.
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).
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
TransNet	IETF RFC 793	Transmission Control Protocol	This standard (RFC) defines the main connection–oriented Transport Layer protocol used on Internet–based networks.
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.

Readiness: High–Moderate

Readiness Description

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.

Issues

Issue	Severity	Description	Associated Standard	Associated Triple
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)
Update data to SNMPv3	Low	Data has been defined for SNMPv1, but needs to be updated to SNMPv3 format.	(None)	(All)
Use case not considered in design (minor)	Low	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	MDOT Statewide TMC=>lane management control=>MDOT ITS Field Equipment
Use case not considered in design (minor)	Low	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	ODOT ATMS=>lane management control=>ODOT District 2 Lane Control Devices
Use case not considered in design (minor)	Low	While the indicated standards nominally address the information flow, the design may not meet practical constraints because this particular use case was not the focus of the design effort.	(None)	ODOT ATMS=>lane management control=>ODOT District 2 DMS
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)

Supports Interfaces

Source	Destination	Flow
City of Bowling Green Electric Division Dispatch	City of Bowling Green ITS Field Devices	roadway dynamic signage data
City of Bowling Green ITS Field Devices	City of Bowling Green Electric Division Dispatch	roadway dynamic signage status
City of Bowling Green ITS Field Devices	City of Bowling Green Maintenance Dispatch	roadway dynamic signage status
City of Bowling Green ITS Field Devices	City of Bowling Green Public Works Dispatch	roadway dynamic signage status
City of Bowling Green ITS Field Devices	City of Bowling Green Traffic Signal System	roadway dynamic signage status
City of Bowling Green ITS Field Devices	County and City Connected Vehicles Roadside Equipment	roadway dynamic signage status
City of Bowling Green ITS Field Devices	County and City Connected Vehicles Roadside Equipment	vehicle signage local data
City of Bowling Green Maintenance Dispatch	City of Bowling Green ITS Field Devices	roadway dynamic signage data
City of Bowling Green Public Works Dispatch	City of Bowling Green ITS Field Devices	roadway dynamic signage data
City of Bowling Green Traffic Signal System	City of Bowling Green ITS Field Devices	roadway dynamic signage data
City of Toledo ITS Field Devices	City of Toledo Maintenance Dispatch (CLIC)	roadway dynamic signage status
City of Toledo ITS Field Devices	City of Toledo Traffic Management System	roadway dynamic signage status
City of Toledo ITS Field Devices	County and City Connected Vehicles Roadside Equipment	roadway dynamic signage status
City of Toledo ITS Field Devices	County and City Connected Vehicles Roadside Equipment	vehicle signage local data
City of Toledo Maintenance Dispatch (CLIC)	City of Toledo ITS Field Devices	roadway dynamic signage data
City of Toledo Traffic Management System	City of Toledo ITS Field Devices	roadway dynamic signage data
County and City Connected Vehicles Roadside Equipment	City of Bowling Green ITS Field Devices	roadway dynamic signage data
County and City Connected Vehicles Roadside Equipment	City of Toledo ITS Field Devices	roadway dynamic signage data
County and City Connected Vehicles Roadside Equipment	Lucas County ITS Field Devices	roadway dynamic signage data
County and City Connected Vehicles Roadside Equipment	Municipal ITS Field Devices	roadway dynamic signage data
County and City Connected Vehicles Roadside Equipment	Wood County ITS Field Devices	roadway dynamic signage data
County and City Parking Management Systems	County and City Connected Vehicles Roadside Equipment	vehicle signage local data
Lucas County Engineer Dispatch	Lucas County ITS Field Devices	roadway dynamic signage data
Lucas County ITS Field Devices	County and City Connected Vehicles Roadside Equipment	roadway dynamic signage status
Lucas County ITS Field Devices	County and City Connected Vehicles Roadside Equipment	vehicle signage local data
Lucas County ITS Field Devices	Lucas County Engineer Dispatch	roadway dynamic signage status
Lucas County ITS Field Devices	Lucas County Traffic Signal System	roadway dynamic signage status
Lucas County ITS Field Devices	ODOT Traffic Signal Control System	roadway dynamic signage status
Lucas County Traffic Signal System	Lucas County ITS Field Devices	roadway dynamic signage data
MDOT ITS Field Equipment	MDOT Statewide TMC	roadway dynamic signage status
MDOT Statewide TMC	MDOT ITS Field Equipment	lane management control
MDOT Statewide TMC	MDOT ITS Field Equipment	roadway dynamic signage data
Monroe County ITS Field Equipment	Monroe County Maintenance Dispatch	roadway dynamic signage status
Monroe County ITS Field Equipment	Monroe County Road Commission Traffic Operations Center	roadway dynamic signage status
Monroe County Maintenance Dispatch	Monroe County ITS Field Equipment	roadway dynamic signage data
Monroe County Road Commission Traffic Operations Center	Monroe County ITS Field Equipment	roadway dynamic signage data
Municipal ITS Field Devices	County and City Connected Vehicles Roadside Equipment	roadway dynamic signage status
Municipal ITS Field Devices	County and City Connected Vehicles Roadside Equipment	vehicle signage local data
Municipal ITS Field Devices	Municipal Maintenance Dispatch	roadway dynamic signage status
Municipal ITS Field Devices	Municipal Traffic Signal Systems	roadway dynamic signage status
Municipal Maintenance Dispatch	Municipal ITS Field Devices	roadway dynamic signage data
Municipal Traffic Signal Systems	Municipal ITS Field Devices	roadway dynamic signage data
ODOT ATMS	ODOT District 2 DMS	lane management control
ODOT ATMS	ODOT District 2 DMS	roadway dynamic signage data
ODOT ATMS	ODOT District 2 DMS	variable speed limit control
ODOT ATMS	ODOT District 2 Lane Control Devices	lane management control
ODOT ATMS	ODOT District 2 Lane Control Devices	roadway dynamic signage data
ODOT ATMS	ODOT District 2 Speed Monitoring Roadside Equipment	roadway dynamic signage data
ODOT ATMS	ODOT District 2 Variable Speed Limit Signs	roadway dynamic signage data
ODOT ATMS	ODOT District 2 Variable Speed Limit Signs	variable speed limit control
ODOT ATMS	ODOT District 2 Wrong Way Vehicle Detection and Warning System	roadway dynamic signage data
ODOT Connected Vehicles Roadside Equipment	ODOT District 2 DMS	roadway dynamic signage data
ODOT District 2 Automated Roadway Treatment Systems	ODOT District 2 Maintenance Garages	roadway dynamic signage status
ODOT District 2 DMS	ODOT ATMS	roadway dynamic signage status
ODOT District 2 DMS	ODOT ATMS	variable speed limit status
ODOT District 2 DMS	ODOT Connected Vehicles Roadside Equipment	roadway dynamic signage status
ODOT District 2 DMS	ODOT Connected Vehicles Roadside Equipment	vehicle signage local data
ODOT District 2 DMS	ODOT District 2 Maintenance Garages	roadway dynamic signage status
ODOT District 2 DMS	ODOT District 2 Office	roadway dynamic signage status
ODOT District 2 Lane Control Devices	ODOT ATMS	roadway dynamic signage status
ODOT District 2 Lane Control Devices	ODOT Connected Vehicles Roadside Equipment	vehicle signage local data
ODOT District 2 Maintenance Garages	ODOT District 2 Automated Roadway Treatment Systems	roadway dynamic signage data
ODOT District 2 Maintenance Garages	ODOT District 2 DMS	roadway dynamic signage data
ODOT District 2 Maintenance Garages	ODOT District 2 Speed Monitoring Roadside Equipment	roadway dynamic signage data
ODOT District 2 Office	ODOT District 2 DMS	roadway dynamic signage data
ODOT District 2 Office	ODOT District 2 Speed Monitoring Roadside Equipment	roadway dynamic signage data
ODOT District 2 RWIS Stations	ODOT District 2 Variable Speed Limit Signs	dynamic sign coordination
ODOT District 2 RWIS Stations	ODOT District 2 Variable Speed Limit Signs	lane management coordination
ODOT District 2 RWIS Stations	ODOT District 2 Variable Speed Limit Signs	variable speed limit coordination
ODOT District 2 Speed Monitoring Roadside Equipment	ODOT ATMS	roadway dynamic signage status
ODOT District 2 Speed Monitoring Roadside Equipment	ODOT District 2 Maintenance Garages	roadway dynamic signage status
ODOT District 2 Speed Monitoring Roadside Equipment	ODOT District 2 Office	roadway dynamic signage status
ODOT District 2 Variable Speed Limit Signs	ODOT ATMS	roadway dynamic signage status
ODOT District 2 Variable Speed Limit Signs	ODOT ATMS	variable speed limit status
ODOT District 2 Variable Speed Limit Signs	ODOT Connected Vehicles Roadside Equipment	vehicle signage local data
ODOT District 2 Variable Speed Limit Signs	ODOT District 2 RWIS Stations	dynamic sign coordination
ODOT District 2 Variable Speed Limit Signs	ODOT District 2 RWIS Stations	lane management coordination
ODOT District 2 Variable Speed Limit Signs	ODOT District 2 RWIS Stations	variable speed limit coordination
ODOT District 2 Wrong Way Vehicle Detection and Warning System	ODOT ATMS	roadway dynamic signage status
ODOT Rest Area Truck Parking Availability System	ODOT Connected Vehicles Roadside Equipment	vehicle signage local data
ODOT Traffic Signal Control System	Lucas County ITS Field Devices	roadway dynamic signage data
OTIC Central Dispatch	OTIC Queue Warning Detection and Warning System	roadway dynamic signage data
OTIC Queue Warning Detection and Warning System	OTIC Central Dispatch	roadway dynamic signage status
OTIC Queue Warning Detection and Warning System	OTIC Connected Vehicles Roadside Equipment	vehicle signage local data
OTIC Service Plaza Truck Parking Management System	OTIC Connected Vehicles Roadside Equipment	vehicle signage local data
Toledo–Lucas County Port Authority Parking Management System	Toledo–Lucas County Port Authority Connected Vehicle Roadside Equipment	vehicle signage local data
Wood County ITS Field Devices	County and City Connected Vehicles Roadside Equipment	roadway dynamic signage status
Wood County ITS Field Devices	County and City Connected Vehicles Roadside Equipment	vehicle signage local data
Wood County ITS Field Devices	Wood County Maintenance Dispatch	roadway dynamic signage status
Wood County Maintenance Dispatch	Wood County ITS Field Devices	roadway dynamic signage data