Indianapolis ITS Architecture
| Level | Doc # | Standard | Description |
|---|---|---|---|
| Access | Internet Subnet Alternatives | A set of alternative standards that includes any Subnet Layer method of connecting to the Internet. | |
| 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 | Secure Session Alternatives | A set of alternative standards that identifies standards that are used to establish and maintain secure Internet sessions. If an information exchange does not require encryption, the (D)TLS session can negotiate NULL encryption. NOTE: If TCP is selected in the TransNet Layer, one of the TLS alternatives must be selected from this alternative set; if UDP is selected in the TransNet Layer, one of the DTLS alternatives must be selected from this alternative set. | |
| TransNet | IETF RFC 9293 | IETF RFC 9293 TCP | 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. |
| TransNet | IP Alternatives | A set of alternative standards that allows for the selection of IPv4 or IPv6. |
| Level | Doc # | Standard | Description |
|---|---|---|---|
| Facilities | IETF RFC 4180 | IETF RFC 4180 CSV Files | This standard (RFC) documents the format used for Comma-Separated Values (CSV) files and registers the associated MIME type "text/csv". |
| Facilities | IETF RFC 7159 | IETF RFC 7159 JSON | The JavaScript Object Notation (JSON), a lightweight, text-based, language-independent data interchange format. It was derived from the ECMAScript Programming Language Standard. JSON defines a small set of formatting rules for the portable representation of structured data. This document removes inconsistencies with other specifications of JSON, repairs specification errors, and offers experience-based interoperability guidance. |
| Facilities | IETF RFC 9110 | IETF RFC 9110 HTTP Semantics | The Hypertext Transfer Protocol (HTTP) is a stateless application-level protocol for distributed, collaborative, hypertext information systems. This document describes the overall architecture of HTTP, establishes common terminology, and defines aspects of the protocol that are shared by all versions. In this definition are core protocol elements, extensibility mechanisms, and the "http" and "https" Uniform Resource Identifier (URI) schemes. |
| Facilities | IETF RFC 9112 | IETF RFC 9112 HTTP/1.1 | The Hypertext Transfer Protocol (HTTP) is a stateless application-level protocol for distributed, collaborative, hypertext information systems. This document specifies the HTTP/1.1 message syntax, message parsing, connection management, and related security concerns. |
| Facilities | ISO 21320-1 | ISO 21320-1 ZIP | ISO/IEC 21320-1 specifies the core requirements for 1) document container files, and 2) implementations that produce and/or consume document container files. It normatively references the Zip File Format Specification version 6.3.3 of PKWARE(R) Inc. Document container files are conforming Zip files as specified by that document. |
| ITS Application Entity | GTFS Realtime | GTFS Realtime | This document defines a feed specification that allows public transportation agencies to provide real-time updates about their fleet to application developers. It is an extension to GTFS (General Transit Feed Specification), an open data format for public transportation schedules and associated geographic information. GTFS Realtime was designed around ease of implementation, good GTFS interoperability and a focus on passenger information. |
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: 1/8/2024
