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.

Relevant Regions:

• United States

Comm Profile: I-F: SNMPv3/TLS

Comm Class: MAN - Metropolitan Area Network

Level	Standard
Access	Field SubNet Alternatives
Facilities	Bundle: ISO 15784-2
Mgmt	Bundle: SNMPv3 MIB
Security	IETF RFC 6353 TLS for SNMP
TransNet	Internet Transport Alternatives
TransNet	IP Alternatives

Data Profile: US: NTCIP Message Sign

Level	Standard
Facilities	NTCIP Message Sign Objects
ITS Application Entity	NTCIP Message Sign Objects
Mgmt	NTCIP Global Objects

Solution Issues Severity: 5

Solution Issues:

Default	Severity	Name	Type	Description
True	Low	Update data to SNMPv3	Standardization Gap	Data has been defined for SNMPv1, but needs to be updated to SNMPv3 format.
True	Low	Use TLS for SNMP Option	Security Gap	The standard allows for multiple security mechanisms. The only defined mechanism that meets the requirements for C-ITS is the one based on TLS.
True	Medium	Out of date (medium)	Standardization Gap	The standard includes normative references to other standards that have been subject to significant changes that can impact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.

Solution to Triples

Source	Flow	Destination
Border Inspection System	vehicle signage local data	Connected Vehicle Roadside Equipment
Connected Vehicle Roadside Equipment	roadway dynamic signage data	ITS Roadway Equipment
ITS Roadway Equipment	roadway dynamic signage status	Connected Vehicle Roadside Equipment
ITS Roadway Equipment	vehicle signage local data	Connected Vehicle Roadside Equipment
ITS Roadway Equipment	roadway dynamic signage status	Maint and Constr Management Center
ITS Roadway Equipment	dynamic sign coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	lane management coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	variable speed limit coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	roadway dynamic signage status	Traffic Management Center
ITS Roadway Equipment	variable speed limit status	Traffic Management Center
Maint and Constr Management Center	roadway dynamic signage data	ITS Roadway Equipment
Other ITS Roadway Equipment	dynamic sign coordination	ITS Roadway Equipment
Other ITS Roadway Equipment	lane management coordination	ITS Roadway Equipment
Other ITS Roadway Equipment	variable speed limit coordination	ITS Roadway Equipment
Parking Area Equipment	vehicle signage local data	Connected Vehicle Roadside Equipment
Parking Area Equipment	vehicle signage local data	Connected Vehicle Roadside Equipment
Traffic Management Center	lane management control	ITS Roadway Equipment
Traffic Management Center	roadway dynamic signage data	ITS Roadway Equipment
Traffic Management Center	variable speed limit control	ITS Roadway Equipment