Diameter Load Information Conveyance
RFC 8583
| Document | Type |
RFC - Proposed Standard
(August 2019; No errata)
Was draft-ietf-dime-load (dime WG)
|
|
|---|---|---|---|
| Last updated | 2019-08-15 | ||
| Stream | IETF | ||
| Formats | plain text pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Jouni Korhonen | ||
| Shepherd write-up | Show (last changed 2016-12-06) | ||
| IESG | IESG state | RFC 8583 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Ignas Bagdonas | ||
| Send notices to | "Jouni Korhonen" <jouni.nospam@gmail.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) B. Campbell
Request for Comments: 8583 S. Donovan, Ed.
Category: Standards Track Oracle
ISSN: 2070-1721 JJ. Trottin
Nokia
August 2019
Diameter Load Information Conveyance
Abstract
RFC 7068 describes requirements for Overload Control in Diameter.
This includes a requirement to allow Diameter nodes to send "load"
information, even when the node is not overloaded. The base solution
defined in RFC 7683 (Diameter Overload Information Conveyance (DOIC))
describes a mechanism meeting most of the requirements but does not
currently include the ability to send load information. This
document defines a mechanism for the conveying of Diameter load
information.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8583.
Campbell, et al. Standards Track [Page 1]
RFC 8583 Diameter Load August 2019
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Campbell, et al. Standards Track [Page 2]
RFC 8583 Diameter Load August 2019
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology and Abbreviations . . . . . . . . . . . . . . . . 4
3. Conventions Used in This Document . . . . . . . . . . . . . . 5
4. Background . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1. Differences between Load and Overload Information . . . . 5
4.2. How Is Load Information Used? . . . . . . . . . . . . . . 6
5. Solution Overview . . . . . . . . . . . . . . . . . . . . . . 7
5.1. Theory of Operation . . . . . . . . . . . . . . . . . . . 9
6. Load-Mechanism Procedures . . . . . . . . . . . . . . . . . . 11
6.1. Reporting-Node Behavior . . . . . . . . . . . . . . . . . 11
6.1.1. Endpoint Reporting-Node Behavior . . . . . . . . . . 11
6.1.2. Agent Reporting-Node Behavior . . . . . . . . . . . . 12
6.2. Reacting-Node Behavior . . . . . . . . . . . . . . . . . 13
6.3. Extensibility . . . . . . . . . . . . . . . . . . . . . . 14
6.4. Addition and Removal of Nodes . . . . . . . . . . . . . . 14
7. Attribute-Value Pairs . . . . . . . . . . . . . . . . . . . . 15
7.1. Load AVP . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2. Load-Type AVP . . . . . . . . . . . . . . . . . . . . . . 15
7.3. Load-Value AVP . . . . . . . . . . . . . . . . . . . . . 15
7.4. SourceID AVP . . . . . . . . . . . . . . . . . . . . . . 15
7.5. Attribute-Value Pair Flag Rules . . . . . . . . . . . . . 16
8. Security Considerations . . . . . . . . . . . . . . . . . . . 16
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 17
10.1. Normative References . . . . . . . . . . . . . . . . . . 17
10.2. Informative References . . . . . . . . . . . . . . . . . 17
Appendix A. Topology Scenarios . . . . . . . . . . . . . . . . . 18
A.1. No Agent . . . . . . . . . . . . . . . . . . . . . . . . 18
A.2. Single Agent . . . . . . . . . . . . . . . . . . . . . . 18
A.3. Multiple Agents . . . . . . . . . . . . . . . . . . . . . 19
A.4. Linked Agents . . . . . . . . . . . . . . . . . . . . . . 19
A.5. Shared Server Pools . . . . . . . . . . . . . . . . . . . 21
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