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533elZnx5nUe55tSL4OKiUS78Hj2XQjIRc64gz0H7m3eWtV4MPBrcUCFhSi50HDZUk0FJVuMHo7m IIN7XhpmcaxUY4jxLC2t/uhrguh/P061rLDCtjSrcY3z/+SufyGPCcbcC1HcFpaQVS3R9QaMC7Wl ihZ/9rWY0JoKD2bXNwMNigRKyfCs4TMIAz7hHIvaxfe+XXjz2WHg== X-QQ-XMRINFO: M/715EihBoGSf6IYSX1iLFg= Date: Thu, 19 Oct 2023 11:09:03 +0800 From: "Xueting Li" To: icnrg References: <2A5DD9FE-85F7-4871-904B-9351395E69C2@orandom.net> X-Priority: 3 X-GUID: F09AA2CE-3536-4EBA-BE77-761A65F22766 X-Has-Attach: no X-Mailer: Foxmail 7.2.25.213[cn] Mime-Version: 1.0 X-OQ-MSGID: <2023101911090266041029@foxmail.com> Content-Type: multipart/alternative; boundary="----=_001_NextPart717863223860_=----" Archived-At: Subject: [icnrg] New Version Notification for draft-li-icnrg-damc-02.txt X-BeenThere: icnrg@irtf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: Information-Centric Networking research group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Oct 2023 03:09:20 -0000 This 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Dear all,<= /div>

A new version of Internet-Draft draft-li-icnrg-damc-02.txt has been
successfully su= bmitted by Xueting Li and posted to the
IETF repository.
 
Name:     draft-li-icnrg-damc
Revision: 02
Title:    Distributed architec= ture for microservices communication based on Information-Centric Networki= ng (ICN)
Date:     2023-10-18
Grou= p:    Individual Submission
Pages:  &nb= sp; 20
URL:      https://www.ietf.org/a= rchive/id/draft-li-icnrg-damc-02.txt
Status:   https:/= /datatracker.ietf.org/doc/draft-li-icnrg-damc/
HTMLized: https:/= /datatracker.ietf.org/doc/html/draft-li-icnrg-damc
Diff: &n= bsp;   https://author-tools.ietf.org/iddiff?url2=3Ddraft-li-icnr= g-damc-02
 
Abstract:
 
=    This draft defines a new communication architecture, called
   Distributed Architecture for Microservices Communica= tion (DAMC).  It
   includes multiple aspects of = microservice communication, such as
   service registr= ation, service discovery, service routing, service
   = scheduling, and more , Which to achieve all the essential
 =   functionalities provided by current centralized service networks.
   The purpose of this draft is to combine the Informat= ion-Centric
   Networking (ICN) concept to enhance the= overall performance,
   scalability and reliability o= f microservices communication.  The DAMC
   archi= tecture provides a powerful framework for managing the complex
&= nbsp;  communication requirements of distributed microservices, ensur= ing
   integrity, security and efficient resource util= ization.

Summa= ry of the changes made in this version&= nbsp;compared to the previous versions:

Introduction

  • Based on valuable&nb= sp;advice from David R. Oran, we have m= ade modifications in the introduction section&nbs= p;to provide 
    a more accurate cit= ation of references and adjusted relevant co= ntent to better reflect our architectural de= sign principles and objectives.
  • Termin= ology
    • In&nb= sp;the terminology section, we have also pro= vided explanations for the terms used in&nbs= p;the document to enhance clarity.

      • Key process / distributed servic= e mesh architecture


      • We have made some wording adjustment= s. For instance, we replaced "owned" with&nb= sp;"service located"         to align with the = ;concept of sharing network namespaces and storag= e in a "Pod." Regarding the complexity of&nb= sp;prefix identity authentication, we have = opted not to delve into detailed explanation= s in this document, as we plan to = offer comprehensive insights in subsequent files&= nbsp;to ensure a thorough understanding. 

        =

        The term "topology= link information" refers to the foundational data that contributes to the= subsequent creation of the Link State Database. This essential informatio= n is broadcast through the interfaces of the Service Gateway. It encompass= es the internal topology of pods, the topology between various Service Gat= eways and pods, and the topology information among pods, Service Gateways,= and Service Routers (to be elaborated).


        The computation of the Forwarding Information Base= (FIB) is a collaborative effort involving both the Service Gateway and th= e Service Router. In this context, we plan to leverage existing routing pr= otocols for computation, such as ISIS. Detailed documentation regarding th= is aspect is currently under development. 

        <= br>

        The term "detection" in this context refers t= o the process of ensuring the quality and reliability of communication bet= ween microservices. To achieve this, the Service Gateway needs to assess t= he health status and availability of each target microservice. In essence,= this "detection" mechanism allows the Service Gateway to monitor and ensu= re the overall robustness and seamless operation of communication between = microservices. A more precise term would be "service availabilit= y monitoring".


        This= monitoring of health status encompasses, but is not limited to, the follo= wing aspects:

        Service Liveliness: Verifying if th= e target microservice is operational and capable of processing requests.

        Resource Utilization: Monitoring the resource usag= e of microservices to ensure there is no resource depletion or excessive u= tilization.

        Latency and Response Time: Measuring = microservices' response time and latency to ensure there is no significant= performance degradation during communication.

        Er= ror Rate: Detecting the error rate of microservices, including request fai= lure rates, abnormal responses, etc., in order to make timely adjustments = or take necessary actions.


        The Service Gateway gathers this information through regular moni= toring mechanisms. This data is then utilized to dynamically distribute tr= affic and make routing decisions based on the health of microservices. Thi= s contributes to a stable service communication environment, ensuring high= availability and performance.

      Key communication message types & functions

      • In our document, different messages may correspond to diffe= rent protocols. We plan to continue using existing mature protocols, and s= pecific details will be provided in subsequent documents.


        Regarding failure detection, commun= ication, and recovery mechanisms for various components, these critical as= pects are part of our ongoing development. We are actively working to defi= ne robust processes that ensure timely detection of failures, seamless com= munication of these events to relevant components, and effective recovery = strategies.


        As for= the instantiation of the initial state defining the structure of a DAMC (= Distributed Application Microservices Communication) instance, this is ano= ther area of our ongoing refinement. We are carefully considering how to e= stablish the foundational configuration that governs the DAMC instance, in= corporating best practices and well-defined procedures.


        Regarding service measurement: In o= ur document, service measurement is implemented as follows:


        Service Gateway: The Service Gate= way assumes the role of traffic proxy within the service-oriented network.= Positioned at the forefront of service communication, it not only forward= s and processes traffic but also collects data pertaining to communication= between services. This encompasses crucial metrics such as traffic data, = latency, error rates, and other key indicators.

        <= br>

        Service Mesh Communication Scheduling Center:= Within the service-oriented network, the Service Mesh Communication Sched= uling Center component operates in a manner akin to Istio's Telemetry func= tion. Its responsibility lies in gathering, processing, and storing data g= enerated by the Service Gateway. This data includes access logs, metrics, = and information necessary for distributed tracing.


      Operation process=E2=80=A6

      • We have made adjustments to the wording= in this section, such as changing 'Podcast' to 'Pod' . The relevant conte= nt has also been modified, and specific details can be found in the draft.=


The above serves as a summary of the modifications made in t= his version. The primary focus of this draft is to introduce our overall a= rchitecture. Further refinements of certain theoretical details will be pr= ovided in subsequent drafts, and we will offer targeted explanations of ke= y processes in separate drafts. 

If you&= nbsp;have any comments or suggestions, please&nbs= p;feel free to reach out to us. Your&nb= sp;feedback is highly appreciated.
<= span style=3D"color: rgb(0, 0, 0); background-color: rgba(0, 0, 0, 0);">

Best regards,
Xueting Li


=
The IETF Secretariat                   =                     &nb= sp;               
Xueting Li
China Telecom
lixt2@foxmail.com

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