Akron Regional ITS Architecture (2022)

US: NTCIP Signal Priority - SNMPv3/TLS

Description

This solution is used within the U.S.. It combines standards associated with US: NTCIP Signal Priority with those for I–F: SNMPv3/TLS. The US: NTCIP Signal Priority standards include upper–layer standards required to implement center–to–field traffic signal control priority communications (e.g., for busses and emergency vehicles). 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 1202	NTCIP Object Definitions for ASC	This standard defines SNMP objects (data elements) for a center to control a traffic signal and its interface with connected vehicles.
ITS Application Entity	NTCIP 1211	NTCIP Objects for SCP	This standard defines SNMP objects (data elements) to monitor and control signal control priority systems for signal controllers.
Facilities	NTCIP 1202	NTCIP Object Definitions for ASC	This standard defines SNMP objects (data elements) for a center to control a traffic signal and its interface with connected vehicles.
Facilities	NTCIP 1211	NTCIP Objects for SCP	This standard defines SNMP objects (data elements) to monitor and control signal control priority systems for signal controllers.
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.
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 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 Akron Traffic Signal Roadway Equipment	City of Akron Traffic Operations Center	right–of–way request notification
City of Barberton Traffic Signal Roadway Equipment	City of Barberton Traffic Operations Center	right–of–way request notification
City of Cuyahoga Falls Traffic Signal Roadway Equipment	City of Cuyahoga Falls Traffic Operations Center	right–of–way request notification
City of Green Traffic Signal Roadway Equipment	City of Green Traffic Operations Center	right–of–way request notification
City of Hudson Traffic Signal Roadway Equipment	City of Hudson Traffic Operations Center	right–of–way request notification
City of Kent Traffic Signal Roadway Equipment	City of Kent Traffic Operations Center	right–of–way request notification
City of Stow Traffic Signal Roadway Equipment	City of Stow Traffic Operations Center	right–of–way request notification
City of Twinsburg Traffic Signal Roadway Equipment	City of Twinsburg Traffic Operations Center	right–of–way request notification
County and City Connected Vehicles Roadside Equipment	City of Akron Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Akron Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Akron Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Barberton Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Barberton Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Barberton Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Cuyahoga Falls Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Cuyahoga Falls Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Cuyahoga Falls Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Green Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Green Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Green Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Hudson Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Hudson Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Hudson Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Kent Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Kent Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Kent Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Stow Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Stow Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Stow Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	City of Twinsburg Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	City of Twinsburg Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	City of Twinsburg Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	Other Municipalities Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	Other Municipalities Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	Other Municipalities Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	Portage County Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	Portage County Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	Portage County Traffic Signal Roadway Equipment	signal service request
County and City Connected Vehicles Roadside Equipment	Summit County Traffic Signal Roadway Equipment	signal preemption request
County and City Connected Vehicles Roadside Equipment	Summit County Traffic Signal Roadway Equipment	signal priority service request
County and City Connected Vehicles Roadside Equipment	Summit County Traffic Signal Roadway Equipment	signal service request
ODOT Connected Vehicles Roadside Equipment	ODOT District 4 Traffic Signal Roadway Equipment	signal preemption request
ODOT Connected Vehicles Roadside Equipment	ODOT District 4 Traffic Signal Roadway Equipment	signal priority service request
ODOT Connected Vehicles Roadside Equipment	ODOT District 4 Traffic Signal Roadway Equipment	signal service request
ODOT District 4 Traffic Signal Roadway Equipment	ODOT Traffic Signal Control System	right–of–way request notification
Other Municipalities Traffic Signal Roadway Equipment	Other Municipalities Traffic Operations Centers	right–of–way request notification
Portage County Traffic Signal Roadway Equipment	Portage County Traffic Operations Center	right–of–way request notification
Summit County Traffic Signal Roadway Equipment	Summit County Traffic Operations Center	right–of–way request notification