A comprehensive analysis on control plane deployment in SDN: In-band versus out-of-band solutions

Jalili, Ahmad; Nazari, Hamed; Namvarasl, Sahar; Keshtgari, Manijeh

doi:10.1109/kbei.2017.8324949

Cited by 25 publications

(27 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…After implementing the proposed protocol, the total time for updating the topology was about 10 ms for the testbed system described in the paper. However, Jalili et al [36] used out-of-band management, which might not be possible to deploy in some real, largescale scenarios.…”

Section: B Non-openflow Approachesmentioning

confidence: 99%

eTDP: Enhanced Topology Discovery Protocol for Software-Defined Networks

2019

View full text Add to dashboard Cite

Discovering network elements in a dynamic and optimized manner and being able to contend with ever-growing traffic is a key requirement for current networking environments. In software-defined networks (SDNs), the controller collects the topology information from the data plane and maintains an abstract view of the entire network, which is crucial for the proper functioning of applications and network services. However, there is still the need for an enhanced protocol for automatic discovery and mechanisms of autoconfiguration of network elements according to new policies and business requirements. To overcome this challenge, this paper presents a novel protocol that, unlike existing approaches, enables a distributed layer-2 discovery without the need for previous network configurations or controller knowledge of the network. By using this mechanism, the SDN controller can discover the network view without incurring scalability issues, while taking advantage of the shortest control paths toward each switch. The obtained results show that our enhanced protocol is efficient in terms of time and message load over a wide range of generated networks and outperforms the state-of-the-art techniques. INDEX TERMS Network management, protocols, software-defined networks, topology discovery. CRISTINA CERVELLÓ-PASTOR received the M.Sc. and Ph.D. degrees in telecommunication engineering from the Barcelona School of Telecommunications Engineering, Politècnica de Catalunya, Barcelona, Spain, where she is currently an Associate Professor and the Head of the Department of Network Engineering. Being part of the BAMPLA Research Group, she is responsible and actively participated in diverse national and European competitive projects (NOVI, FEDER-ICA, ATDMA, A@DAN, Euro-NGI, Euro-FGI, and EURONF) and private funding research and development projects. She has published diverse papers in national and international journals and conferences. She is supervising dissertation in the field of management, optimal resource allocation, topology discovery, and routing in software-defined networks/NFV and 5G.

show abstract

Section: B Non-openflow Approachesmentioning

confidence: 99%

eTDP: Enhanced Topology Discovery Protocol for Software-Defined Networks

2019

View full text Add to dashboard Cite

show abstract

“…As it can be seen in Figure 3, there are APIs (Application Programmable Interface) Southbound, such as the OpenFlow protocol, which allow a controller like Opendaylight or NSX to send the set of policies and configurations to all the devices that make up the data plane. These APIs are of crucial importance for the strict separation of the functions of the data and control planes [12], [13]. There are also Northbound APIs such as Restful API [14] or SDMN API [15], which define a central place in the infrastructure to mediate between global application policies and network policies, allowing the application layer to communicate with the control layer [16]…”

Section: Control Planementioning

confidence: 99%

State of the art in software defined networking (SDN)

Pérez¹,

Losada²,

Rojas³

et al. 2019

Vis. Electron.

View full text Add to dashboard Cite

The growth of networks at a global level is inevitable due to the increase of users, devices and applications, such as: Internet of Things (IoT), processing and analysis of large amounts of information (Big Data), or streaming audio and video, which has demanded from the systems, greater storage resources and bandwidth. To this purpose, diverse paradigms have emerged for the centralized management of all the components of a network through fully administrable, centralized and dynamic technological platforms; among these is SDN (Software-Defined Networks). This document, consequently, establishes the state-of-art from a documentary research of a categorical type to be used as a frame of reference for research in the area of SDN by the Research Group of New Technologies of Social Application GIDENUTAS ascribed to the University Francisco Jose de Caldas. This is chronologically limited to a review, from 2007 until today, focused on the countries that have promoted the development and implementation of this new paradigm, using databases such as IEEE Xplore, Google Scholar, as well as documents from standardization organizations such as ONF and ITU.

show abstract

“…The key to in-band connection is how to forward control traffic in the data plane. In existing implementations, the forwarding of in-band control traffic in the data plane depends on Layer 2 switching and learning operations in every data plane switch [6]. Layer 2 switching is a periodic refreshing mechanism and learns the mapping of MAC (Media Access Control) addresses of received packets and their in-ports.…”

Section: Introductionmentioning

confidence: 99%

Centralized Trust-Based In-Band Control for SDN Control Channel

Fan

Yang

2020

IEEE Access

View full text Add to dashboard Cite

In SDN architecture, the control channel between the control and data planes is extremely significant, which has two connection modes: out-of-band mode and in-band mode. For in-band mode, the key to the establishment of SDN control channel is how to forward in-band control traffic in the data plane (control traffic: traffic between controllers and switches). In almost all the existing implementation of the in-band SDN networks, the forwarding of in-band control traffic in the data plane depends on distributed Layer 2 switching that cannot respond to the network state change immediately. In this article, we propose a Centralized Trust-based In-Band (CTIB) control mechanism for SDN in-band control channel. Then based on CTIB control mechanism, we design CTIB routing algorithm to select the most trusted control path for each data plane switch in order to improve the QoS (Quality of Service) of in-band control traffic. Furthermore, we implement CTIB control mechanism in an in-band SDN network and carry out several experiments to test the QoS of the in-band control traffic. The results indicate that there is a huge improvement of in-band control traffic QoS when using CTIB control mechanism compared to the distributed Layer 2 switching. INDEX TERMS SDN, centralized in-band controlling, QoS of in-band control traffic, trust-based routing.

show abstract

A comprehensive analysis on control plane deployment in SDN: In-band versus out-of-band solutions

Cited by 25 publications

References 18 publications

eTDP: Enhanced Topology Discovery Protocol for Software-Defined Networks

eTDP: Enhanced Topology Discovery Protocol for Software-Defined Networks

State of the art in software defined networking (SDN)

Centralized Trust-Based In-Band Control for SDN Control Channel

Contact Info

Product

Resources

About