Memphis ITS Architecture

US: NTCIP Signal System Masters - SNMPv3/TLS

Description

This solution is used within the U.S.. It combines standards associated with US: NTCIP Signal System Masters with those for I–F: SNMPv3/TLS. The US: NTCIP Signal System Masters standards include upper–layer standards required to implement center–to–field signal–system master 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 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 1210	NTCIP Objects for Signal System Masters	This standard defines SNMP objects (data elements) for monitoring and controlling signal system master 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 1210	NTCIP Objects for Signal System Masters	This standard defines SNMP objects (data elements) for monitoring and controlling signal system master 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 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 8200	Internet Protocol, Version 6	This document specifies version 6 of the Internet Protocol (IPv6).
TransNet	IETF RFC 9293	Transmission Control Protocol	This document specifies the Transmission Control Protocol (TCP). TCP is an important transport–layer protocol in the Internet protocol stack, and it has continuously evolved over decades of use and growth of the Internet. Over this time, a number of changes have been made to TCP as it was specified in RFC 793, though these have only been documented in a piecemeal fashion. This document collects and brings those changes together with the protocol specification from RFC 793. This document obsoletes RFC 793, as well as RFCs 879, 2873, 6093, 6429, 6528, and 6691 that updated parts of RFC 793. It updates RFCs 1011 and 1122, and it should be considered as a replacement for the portions of those documents dealing with TCP requirements. It also updates RFC 5961 by adding a small clarification in reset handling while in the SYN–RECEIVED state. The TCP header control bits from RFC 793 have also been updated based on RFC 3168.
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 Bartlett TOC	City of Bartlett Traffic Signals	signal control commands
City of Bartlett TOC	City of Bartlett Traffic Signals	signal control device configuration
City of Bartlett TOC	City of Bartlett Traffic Signals	signal control plans
City of Bartlett TOC	City of Bartlett Traffic Signals	signal system configuration
City of Bartlett TOC	City of Memphis Traffic Signals	signal control commands
City of Bartlett Traffic Signals	City of Bartlett Rail Notification System	signal control coordination
City of Bartlett Traffic Signals	City of Bartlett TOC	signal fault data
City of Bartlett Traffic Signals	City of Memphis TOC	signal fault data
City of Germantown TOC	City of Germantown Traffic Signals	signal control commands
City of Germantown TOC	City of Germantown Traffic Signals	signal control device configuration
City of Germantown TOC	City of Germantown Traffic Signals	signal control plans
City of Germantown TOC	City of Germantown Traffic Signals	signal system configuration
City of Germantown Traffic Signals	City of Germantown Rail Notification System	signal control coordination
City of Germantown Traffic Signals	City of Germantown TOC	signal fault data
City of Germantown Traffic Signals	City of Memphis TOC	signal fault data
City of Horn Lake TOC	City of Horn Lake Traffic Signals	signal control commands
City of Horn Lake TOC	City of Horn Lake Traffic Signals	signal control device configuration
City of Horn Lake TOC	City of Horn Lake Traffic Signals	signal control plans
City of Horn Lake TOC	City of Horn Lake Traffic Signals	signal system configuration
City of Horn Lake Traffic Signals	City of Horn Lake Rail Notification System	signal control coordination
City of Horn Lake Traffic Signals	City of Horn Lake TOC	signal fault data
City of Memphis TOC	City of Bartlett Traffic Signals	signal control commands
City of Memphis TOC	City of Bartlett Traffic Signals	signal control device configuration
City of Memphis TOC	City of Bartlett Traffic Signals	signal control plans
City of Memphis TOC	City of Bartlett Traffic Signals	signal system configuration
City of Memphis TOC	City of Germantown Traffic Signals	signal control commands
City of Memphis TOC	City of Germantown Traffic Signals	signal control device configuration
City of Memphis TOC	City of Germantown Traffic Signals	signal control plans
City of Memphis TOC	City of Germantown Traffic Signals	signal system configuration
City of Memphis TOC	City of Memphis Traffic Signals	signal control commands
City of Memphis TOC	City of Memphis Traffic Signals	signal control device configuration
City of Memphis TOC	City of Memphis Traffic Signals	signal control plans
City of Memphis TOC	City of Memphis Traffic Signals	signal system configuration
City of Memphis TOC	City of Millington Traffic Signals	signal control commands
City of Memphis TOC	City of Millington Traffic Signals	signal control device configuration
City of Memphis TOC	City of Millington Traffic Signals	signal control plans
City of Memphis TOC	City of Millington Traffic Signals	signal system configuration
City of Memphis TOC	Shelby County Health Department Emissions Sensors	signal control commands
City of Memphis TOC	Shelby County Health Department Emissions Sensors	signal control device configuration
City of Memphis TOC	Shelby County Health Department Emissions Sensors	signal control plans
City of Memphis TOC	Shelby County Health Department Emissions Sensors	signal system configuration
City of Memphis TOC	Shelby County Traffic Signals	signal control commands
City of Memphis TOC	Shelby County Traffic Signals	signal control device configuration
City of Memphis TOC	Shelby County Traffic Signals	signal control plans
City of Memphis TOC	Shelby County Traffic Signals	signal system configuration
City of Memphis TOC	Town of Collierville Traffic Signals	signal control commands
City of Memphis TOC	Town of Collierville Traffic Signals	signal control device configuration
City of Memphis TOC	Town of Collierville Traffic Signals	signal control plans
City of Memphis TOC	Town of Collierville Traffic Signals	signal system configuration
City of Memphis Traffic Signals	City of Memphis Rail Notification System	signal control coordination
City of Memphis Traffic Signals	City of Memphis TOC	signal fault data
City of Millington TOC	City of Millington Traffic Signals	signal control commands
City of Millington TOC	City of Millington Traffic Signals	signal control device configuration
City of Millington TOC	City of Millington Traffic Signals	signal control plans
City of Millington TOC	City of Millington Traffic Signals	signal system configuration
City of Millington Traffic Signals	City of Memphis TOC	signal fault data
City of Millington Traffic Signals	City of Millington Rail Notification System	signal control coordination
City of Millington Traffic Signals	City of Millington TOC	signal fault data
City of Olive Branch TOC	City of Olive Branch Traffic Signals	signal control commands
City of Olive Branch TOC	City of Olive Branch Traffic Signals	signal control device configuration
City of Olive Branch TOC	City of Olive Branch Traffic Signals	signal control plans
City of Olive Branch TOC	City of Olive Branch Traffic Signals	signal system configuration
City of Olive Branch Traffic Signals	City of Olive Branch Rail Notification System	signal control coordination
City of Olive Branch Traffic Signals	City of Olive Branch TOC	signal fault data
CIty of Southaven TOC	City of Southaven Traffic Signals	signal control commands
CIty of Southaven TOC	City of Southaven Traffic Signals	signal control device configuration
CIty of Southaven TOC	City of Southaven Traffic Signals	signal control plans
CIty of Southaven TOC	City of Southaven Traffic Signals	signal system configuration
City of Southaven Traffic Signals	City of Southaven Rail Notification System	signal control coordination
City of Southaven Traffic Signals	CIty of Southaven TOC	signal fault data
City of Southaven Traffic Signals	MDOT Northwest Regional TMC	signal fault data
MDOT CCTV Cameras	MDOT Field Sensors	signal control coordination
MDOT DMS	MDOT Field Sensors	signal control coordination
MDOT Dynamic Lane Assignment Sign	MDOT Field Sensors	signal control coordination
MDOT Field Sensors	MDOT CCTV Cameras	signal control coordination
MDOT Field Sensors	MDOT DMS	signal control coordination
MDOT Field Sensors	MDOT Lane Control DMS	signal control coordination
MDOT Lane Control DMS	MDOT Field Sensors	signal control coordination
MDOT Northwest Regional TMC	City of Southaven Traffic Signals	signal control commands
MDOT Northwest Regional TMC	City of Southaven Traffic Signals	signal control device configuration
MDOT Northwest Regional TMC	City of Southaven Traffic Signals	signal control plans
MDOT Northwest Regional TMC	City of Southaven Traffic Signals	signal system configuration
MDOT Northwest Regional TMC	MDOT Field Sensors	signal control commands
MDOT Northwest Regional TMC	MDOT Traffic Signals	signal control commands
MDOT Northwest Regional TMC	MDOT Traffic Signals	signal control device configuration
MDOT Northwest Regional TMC	MDOT Traffic Signals	signal control plans
MDOT Northwest Regional TMC	MDOT Traffic Signals	signal system configuration
MDOT Traffic Signals	City of Southaven Rail Notification System	signal control coordination
MDOT Traffic Signals	MDOT Northwest Regional TMC	signal fault data
Municipal TOC	Municipal Traffic Signals	signal control commands
Municipal TOC	Municipal Traffic Signals	signal control device configuration
Municipal TOC	Municipal Traffic Signals	signal control plans
Municipal TOC	Municipal Traffic Signals	signal system configuration
Municipal Traffic Signals	Municipal Rail Notification System	signal control coordination
Municipal Traffic Signals	Municipal TOC	signal fault data
Shelby County Health Department Emissions Sensors	City of Memphis TOC	signal fault data
Shelby County TOC	Shelby County Traffic Signals	signal control commands
Shelby County TOC	Shelby County Traffic Signals	signal control device configuration
Shelby County TOC	Shelby County Traffic Signals	signal control plans
Shelby County TOC	Shelby County Traffic Signals	signal system configuration
Shelby County Traffic Signals	City of Memphis TOC	signal fault data
Shelby County Traffic Signals	Shelby County TOC	signal fault data
TDOT CCTV Cameras	TDOT Field Sensors	signal control coordination
TDOT DMS	TDOT Field Sensors	signal control coordination
TDOT Dynamic Lane Assignment Sign	TDOT Field Sensors	signal control coordination
TDOT Field Sensors	TDOT CCTV Cameras	signal control coordination
TDOT Field Sensors	TDOT DMS	signal control coordination
TDOT Field Sensors	TDOT Dynamic Lane Assignment Sign	signal control coordination
TDOT Field Sensors	TDOT Lane Control DMS	signal control coordination
TDOT Lane Control DMS	TDOT Field Sensors	signal control coordination
TDOT Region 4 TMC – Memphis	TDOT Field Sensors	signal control commands
Town of Collierville TOC	Town of Collierville Traffic Signals	signal control commands
Town of Collierville TOC	Town of Collierville Traffic Signals	signal control device configuration
Town of Collierville TOC	Town of Collierville Traffic Signals	signal control plans
Town of Collierville TOC	Town of Collierville Traffic Signals	signal system configuration
Town of Collierville Traffic Signals	City of Memphis TOC	signal fault data
Town of Collierville Traffic Signals	Town of Collierville Rail Notification System	signal control coordination
Town of Collierville Traffic Signals	Town of Collierville TOC	signal fault data