RFC 2745 (rfc2745) - Page 1 of 23
RSVP Diagnostic Messages
Alternative Format: Original Text Document
Network Working Group A. Terzis
Request for Comments: 2745 UCLA
Category: Standards Track B. Braden
ISI
S. Vincent
Cisco Systems
L. Zhang
UCLA
January 2000
RSVP Diagnostic Messages
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
This document specifies the RSVP diagnostic facility, which allows a
user to collect information about the RSVP state along a path. This
specification describes the functionality, diagnostic message
formats, and processing rules.
1. Introduction
In the basic RSVP protocol [RSVP], error messages are the only means
for an end host to receive feedback regarding a failure in setting up
either path state or reservation state. An error message carries
back only the information from the failed point, without any
information about the state at other hops before or after the
failure. In the absence of failures, a host receives no feedback
regarding the details of a reservation that has been put in place,
such as whether, or where, or how, its own reservation request is
being merged with that of others. Such missing information can be
highly desirable for debugging purposes, or for network resource
management in general.
Terzis, et al. Standards Track