---
_id: '19607'
abstract:
- lang: eng
  text: "Modern services consist of modular, interconnected\r\ncomponents, e.g., microservices
    forming a service mesh. To\r\ndynamically adjust to ever-changing service demands,
    service\r\ncomponents have to be instantiated on nodes across the network.\r\nIncoming
    flows requesting a service then need to be routed\r\nthrough the deployed instances
    while considering node and link\r\ncapacities. Ultimately, the goal is to maximize
    the successfully\r\nserved flows and Quality of Service (QoS) through online service\r\ncoordination.
    Current approaches for service coordination are\r\nusually centralized, assuming
    up-to-date global knowledge and\r\nmaking global decisions for all nodes in the
    network. Such global\r\nknowledge and centralized decisions are not realistic
    in practical\r\nlarge-scale networks.\r\n\r\nTo solve this problem, we propose
    two algorithms for fully\r\ndistributed service coordination. The proposed algorithms
    can be\r\nexecuted individually at each node in parallel and require only\r\nvery
    limited global knowledge. We compare and evaluate both\r\nalgorithms with a state-of-the-art
    centralized approach in extensive\r\nsimulations on a large-scale, real-world
    network topology.\r\nOur results indicate that the two algorithms can compete
    with\r\ncentralized approaches in terms of solution quality but require\r\nless
    global knowledge and are magnitudes faster (more than\r\n100x)."
author:
- first_name: Stefan Balthasar
  full_name: Schneider, Stefan Balthasar
  id: '35343'
  last_name: Schneider
  orcid: 0000-0001-8210-4011
- first_name: Lars Dietrich
  full_name: Klenner, Lars Dietrich
  last_name: Klenner
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
citation:
  ama: 'Schneider SB, Klenner LD, Karl H. Every Node for Itself: Fully Distributed
    Service Coordination. In: <i>IEEE International Conference on Network and Service
    Management (CNSM)</i>. IEEE; 2020.'
  apa: 'Schneider, S. B., Klenner, L. D., &#38; Karl, H. (2020). Every Node for Itself:
    Fully Distributed Service Coordination. In <i>IEEE International Conference on
    Network and Service Management (CNSM)</i>. IEEE.'
  bibtex: '@inproceedings{Schneider_Klenner_Karl_2020, title={Every Node for Itself:
    Fully Distributed Service Coordination}, booktitle={IEEE International Conference
    on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider,
    Stefan Balthasar and Klenner, Lars Dietrich and Karl, Holger}, year={2020} }'
  chicago: 'Schneider, Stefan Balthasar, Lars Dietrich Klenner, and Holger Karl. “Every
    Node for Itself: Fully Distributed Service Coordination.” In <i>IEEE International
    Conference on Network and Service Management (CNSM)</i>. IEEE, 2020.'
  ieee: 'S. B. Schneider, L. D. Klenner, and H. Karl, “Every Node for Itself: Fully
    Distributed Service Coordination,” in <i>IEEE International Conference on Network
    and Service Management (CNSM)</i>, 2020.'
  mla: 'Schneider, Stefan Balthasar, et al. “Every Node for Itself: Fully Distributed
    Service Coordination.” <i>IEEE International Conference on Network and Service
    Management (CNSM)</i>, IEEE, 2020.'
  short: 'S.B. Schneider, L.D. Klenner, H. Karl, in: IEEE International Conference
    on Network and Service Management (CNSM), IEEE, 2020.'
date_created: 2020-09-22T06:23:40Z
date_updated: 2022-01-06T06:54:08Z
ddc:
- '006'
department:
- _id: '75'
file:
- access_level: open_access
  content_type: application/pdf
  creator: stschn
  date_created: 2020-09-22T06:25:57Z
  date_updated: 2020-09-22T06:36:25Z
  file_id: '19608'
  file_name: ris_with_copyright.pdf
  file_size: 500948
  relation: main_file
file_date_updated: 2020-09-22T06:36:25Z
has_accepted_license: '1'
keyword:
- distributed management
- service coordination
- network coordination
- nfv
- softwarization
- orchestration
language:
- iso: eng
oa: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '16'
  name: SFB 901 - Subproject C4
publication: IEEE International Conference on Network and Service Management (CNSM)
publisher: IEEE
status: public
title: 'Every Node for Itself: Fully Distributed Service Coordination'
type: conference
user_id: '35343'
year: '2020'
...