Diameter Group Signaling
draft-ietf-dime-group-signaling-10
Diameter Maintenance and Extensions (DIME) M. Jones
Internet-Draft
Intended status: Standards Track M. Liebsch
Expires: July 12, 2018
L. Morand
January 8, 2018
Diameter Group Signaling
draft-ietf-dime-group-signaling-10.txt
Abstract
In large network deployments, a single Diameter node can support over
a million concurrent Diameter sessions. Recent use cases have
revealed the need for Diameter nodes to apply the same operation to a
large group of Diameter sessions concurrently. The Diameter base
protocol commands operate on a single session so these use cases
could result in many thousands of command exchanges to enforce the
same operation on each session in the group. In order to reduce
signaling, it would be desirable to enable bulk operations on all (or
part of) the sessions managed by a Diameter node using a single or a
few command exchanges. This document specifies the Diameter protocol
extensions to achieve this signaling optimization.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on July 12, 2018.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
Jones, et al. Expires July 12, 2018 [Page 1]
Internet-Draft Diameter Group Signaling January 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 4
3.1. Building and Modifying Session Groups . . . . . . . . . . 4
3.2. Issuing Group Commands . . . . . . . . . . . . . . . . . 4
3.3. Permission Considerations . . . . . . . . . . . . . . . . 4
4. Protocol Description . . . . . . . . . . . . . . . . . . . . 6
4.1. Session Grouping Capability Discovery . . . . . . . . . . 7
4.1.1. Explicit Capability Discovery . . . . . . . . . . . . 7
4.1.2. Implicit Capability Discovery . . . . . . . . . . . . 7
4.2. Session Grouping . . . . . . . . . . . . . . . . . . . . 7
4.2.1. Group assignment at session initiation . . . . . . . 8
4.2.2. Removing a session from a session group . . . . . . . 11
4.2.3. Mid-session group assignment modifications . . . . . 12
4.3. Deleting a Session Group . . . . . . . . . . . . . . . . 13
4.4. Performing Group Operations . . . . . . . . . . . . . . . 13
4.4.1. Sending Group Commands . . . . . . . . . . . . . . . 13
4.4.2. Receiving Group Commands . . . . . . . . . . . . . . 14
4.4.3. Error Handling for Group Commands . . . . . . . . . . 14
4.4.4. Single-Session Fallback . . . . . . . . . . . . . . . 15
5. Operation with Proxy Agents . . . . . . . . . . . . . . . . . 15
6. Commands Formatting . . . . . . . . . . . . . . . . . . . . . 16
6.1. Formatting Example: Group Re-Auth-Request . . . . . . . . 16
7. Attribute-Value-Pairs (AVP) . . . . . . . . . . . . . . . . . 17
7.1. Session-Group-Info AVP . . . . . . . . . . . . . . . . . 17
7.2. Session-Group-Control-Vector AVP . . . . . . . . . . . . 18
7.3. Session-Group-Id AVP . . . . . . . . . . . . . . . . . . 18
7.4. Group-Response-Action AVP . . . . . . . . . . . . . . . . 19
7.5. Session-Group-Capability-Vector AVP . . . . . . . . . . . 19
8. Result-Code AVP Values . . . . . . . . . . . . . . . . . . . 19
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
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