ALTO extension: Entity Property Maps
draft-ietf-alto-unified-props-new-15
ALTO WG W. Roome
Internet-Draft S. Randriamasy
Intended status: Standards Track Nokia Bell Labs
Expires: 31 May 2021 Y. Yang
Yale University
J. Zhang
Tongji University
K. Gao
Sichuan University
27 November 2020
ALTO extension: Entity Property Maps
draft-ietf-alto-unified-props-new-15
Abstract
This document extends the base Application-Layer Traffic Optimization
(ALTO) Protocol by generalizing the concept of "endpoint properties"
to generic types of entities, and by presenting those properties as
maps, similar to the network and cost maps in the base ALTO protocol.
The protocol is extended in two major directions. First, from
endpoints restricted to IP addresses to entities covering a wider and
extensible set of objects; second, from properties on specific
endpoints to entire entity property maps. These extensions introduce
additional features allowing entities and property values to be
specific to a given information resource. This is made possible by a
generic and flexible design of entity and property types.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 31 May 2021.
Roome, et al. Expires 31 May 2021 [Page 1]
Internet-Draft Entity Property Maps November 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 7
3. Basic Features of the Entity Property Map Extension . . . . . 7
3.1. Entity . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2. Entity Domain . . . . . . . . . . . . . . . . . . . . . . 8
3.2.1. Entity Domain Type . . . . . . . . . . . . . . . . . 8
3.2.2. Entity Domain Name . . . . . . . . . . . . . . . . . 9
3.3. Entity Property Type . . . . . . . . . . . . . . . . . . 9
3.4. New information resource and media type: ALTO Property
Map . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Advanced Features of the Entity Property Map Extension . . . 11
4.1. Entity Identifier and Entity Domain Name . . . . . . . . 11
4.2. Resource-Specific Entity Domain Name . . . . . . . . . . 11
4.3. Resource-Specific Entity Property Value . . . . . . . . . 12
4.4. Entity Hierarchy and Property Inheritance . . . . . . . . 13
4.4.1. Entity Hierarchy . . . . . . . . . . . . . . . . . . 13
4.4.2. Property Inheritance . . . . . . . . . . . . . . . . 14
4.4.3. Property Value Unicity . . . . . . . . . . . . . . . 14
4.5. Supported Properties on Entity Domains in Property Map
Capabilities . . . . . . . . . . . . . . . . . . . . . . 15
4.6. Defining Information Resource for Resource-Specific Entity
Domains . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.6.1. Defining Information Resource and Media Type . . . . 16
4.6.2. Examples of defining information resources
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