RFC 1575 · DRAFT STANDARD · 1994
SUN · 14 JUN 2026
An Echo Function for CLNP
Overview
RFC 1575, “An Echo Function for CLNP”, is a Draft Standard document published in February 1994 by S. Hares, C. Wittbrodt. It obsoletes RFC 1139. The canonical text is published by the RFC Editor.
Abstract
This memo defines an echo function for the connection-less network layer protocol. The mechanism that is mandated here is in the final process of being standardized by ISO as "Amendment X: Addition of an Echo function to ISO 8473" an integral part of Version 2 of ISO 8473. [STANDARDS-TRACK]
What “Draft Standard” means
A historical maturity level (retired in 2011) that sat between Proposed Standard and Internet Standard and required multiple interoperable implementations.
Read this RFC
The canonical text of RFC 1575 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1994
- RFC 1574 Essential Tools for the OSI Internet
- RFC 1576 TN3270 Current Practices
- RFC 1573 Evolution of the Interfaces Group of MIB-II
- RFC 1577 Classical IP and ARP over ATM
- RFC 1572 Telnet Environment Option
- RFC 1578 FYI on Questions and Answers - Answers to Commonly Asked "Primary and Secondary School Internet User" Questions
- RFC 1571 Telnet Environment Option Interoperability Issues
- RFC 1579 Firewall-Friendly FTP