Discussion:
[alto] I-D Action: draft-ietf-alto-incr-update-sse-13.txt
i***@ietf.org
2018-07-23 12:46:24 UTC
Permalink
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Application-Layer Traffic Optimization WG of the IETF.

Title : ALTO Incremental Updates Using Server-Sent Events (SSE)
Authors : Wendy Roome
Y. Richard Yang
Shiwei Dawn Chen
Filename : draft-ietf-alto-incr-update-sse-13.txt
Pages : 50
Date : 2018-07-23

Abstract:
The Application-Layer Traffic Optimization (ALTO) [RFC7285] protocol
provides network related information, called network information
resources, to client applications so that clients can make informed
decisions in utilizing network resources. For example, an ALTO
server can provide network and cost maps so that an ALTO client can
use the maps to determine the costs between endpoints when choosing
communicating endpoints.

However, the ALTO protocol does not define a mechanism to allow an
ALTO client to obtain updates to the information resources, other
than by periodically re-fetching them. Because some information
resources (e.g., the aforementioned maps) may be large (potentially
tens of megabytes), and because only parts of the information
resources may change frequently (e.g., only some entries in a cost
map), complete re-fetching can be extremely inefficient.

This document presents a mechanism to allow an ALTO server to push
updates to ALTO clients, to achieve two benefits: (1) Updates can be
immediate, in that the ALTO server can send updates as soon as they
are available; and (2) updates can be incremental, in that if only a
small section of an information resource changes, the ALTO server can
send just the changes.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-alto-incr-update-sse/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-alto-incr-update-sse-13
https://datatracker.ietf.org/doc/html/draft-ietf-alto-incr-update-sse-13

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-alto-incr-update-sse-13


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
Dawn Chen
2018-08-01 07:19:02 UTC
Permalink
Hi Vijay and all,

A new version of SSE has been submitted to the WG by the authors. According to the IETF102 presentation of SSE, the changes are the following:

1. Update the format of control update message.
2. Propose a modular design of update stream service and stream control service.
3. Clarify the response of update stream service and stream control service.

Since the newly submitted version of SSE has not been reviewed by WG members, we may need someone in the WG to review the new version so that we can push SSE forward as soon as possible.

Thanks,
Dawn

________________________________________
From: alto <alto-***@ietf.org> on behalf of internet-***@ietf.org <internet-***@ietf.org>
Sent: Monday, July 23, 2018 8:46:24 PM
To: i-d-***@ietf.org
Cc: ***@ietf.org
Subject: [alto] I-D Action: draft-ietf-alto-incr-update-sse-13.txt


A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Application-Layer Traffic Optimization WG of the IETF.

Title : ALTO Incremental Updates Using Server-Sent Events (SSE)
Authors : Wendy Roome
Y. Richard Yang
Shiwei Dawn Chen
Filename : draft-ietf-alto-incr-update-sse-13.txt
Pages : 50
Date : 2018-07-23

Abstract:
The Application-Layer Traffic Optimization (ALTO) [RFC7285] protocol
provides network related information, called network information
resources, to client applications so that clients can make informed
decisions in utilizing network resources. For example, an ALTO
server can provide network and cost maps so that an ALTO client can
use the maps to determine the costs between endpoints when choosing
communicating endpoints.

However, the ALTO protocol does not define a mechanism to allow an
ALTO client to obtain updates to the information resources, other
than by periodically re-fetching them. Because some information
resources (e.g., the aforementioned maps) may be large (potentially
tens of megabytes), and because only parts of the information
resources may change frequently (e.g., only some entries in a cost
map), complete re-fetching can be extremely inefficient.

This document presents a mechanism to allow an ALTO server to push
updates to ALTO clients, to achieve two benefits: (1) Updates can be
immediate, in that the ALTO server can send updates as soon as they
are available; and (2) updates can be incremental, in that if only a
small section of an information resource changes, the ALTO server can
send just the changes.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-alto-incr-update-sse/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-alto-incr-update-sse-13
https://datatracker.ietf.org/doc/html/draft-ietf-alto-incr-update-sse-13

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-alto-incr-update-sse-13


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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