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.

Comm Profile: I-F: SNMPv3/TLS

Standards in Profile:

Level	Doc #	Standard	Description
Access		Field SubNet Alternatives	A set of alternative standards that defines various SubNet Layer alternatives for use in center-to-field and field-to-field connections.
Facilities	ISO 15784-2	Bundle: ISO 15784-2	ISO 15784-2 specifies the standards that provide a mechanism to exchange data and messages in the following cases: a) between a traffic management center(s) and roadside modules for traffic management; and b) between roadside modules used for traffic management.
Mgmt		Bundle: SNMPv3 MIB	A bundle of standards (RFCs) that groups the common management information bases (MIBs) used to manage IP networks at the transport layer and below using SNMPv3.
Security	IETF RFC 6353	IETF RFC 6353 TLS for SNMP	This standard (RFC) defines how to use the TLS authentication service to provide authentication within the access control mechanism of SNMP.
TransNet		Internet Transport Alternatives	A set of alternative standards that identifies the two major options for the transport layer for mainstream IP-based deployments.
TransNet		IP Alternatives	A set of alternative standards that allows for the selection of IPv4 or IPv6.

Data Profile: US: NTCIP Message Sign

Standards in Profile:

Level	Doc #	Standard	Description
Facilities	NTCIP 1203	NTCIP Message Sign Objects	This standard defines SNMP objects (data elements) for monitoring and controlling dynamic message signs (such as variable message signs).
ITS Application Entity	NTCIP 1203	NTCIP Message Sign Objects	This standard defines SNMP objects (data elements) for monitoring and controlling dynamic message signs (such as variable message signs).
Mgmt	NTCIP 1201	NTCIP Global Objects	This standard defines SNMP objects (data elements) used by a wide range of field devices like time and versioning information.

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.

Last Updated: 2/7/2024