Exploring source routed forwarding in SDN-based WANs

Soliman, Mourad; Nandy, Biswajit; Lambadaris, Ioannis; Ashwood-Smith, Peter

doi:10.1109/icc.2014.6883792

Cited by 33 publications

(17 citation statements)

References 9 publications

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“…Source Routing: Source routing is considered an inefficient and expensive networking technology. However, with SDN technology development, the source routing approaches utilizing the controller network topology knowledge has gained attention thanks to its ability to better scale the traditional hop-by-hop routing approach [38]. The source routing component consists of three sub-components: forwarding sub-component is used to forward packets from VMs; path selection sub-component consults the SDN controller and then makes a source routing choice; and encapsulation sub-component principally refers to Netlord [27], combining with Portland, the second and third layer (L2 and L3), which are virtualized efficiently and completely, allowing tenants to benefit from a simple and flexible network abstractions, eventually providing tenants simple and flexible network abstractions.…”

Section: Gana-vdc System Architecturementioning

confidence: 99%

GANA-VDC: Application-Aware with Bandwidth Guarantee in Cloud Datacenters

et al. 2019

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Allocating bandwidth guarantees to applications in the cloud has become increasingly demanding and essential as applications compete to share cloud network resources. However, cloud-computing providers offer no network bandwidth guarantees in a cloud environment, predictably preventing tenants from running their applications. Existing schemes offer tenants practical cluster abstraction solutions emulating underlying physical network resources, proving impractical; however, providing virtual network abstractions has remained an essential step in the right direction. In this paper, we consider the requirements for enabling the application-aware network with bandwidth guarantees in a Virtual Data Center (VDC). We design GANA-VDC, a network virtualization framework supporting VDC application-aware networking with bandwidth guarantees in a cloud datacenter. GANA-VDC achieves scalability using an interceptor to translate OpenFlow features to prompt fine-grained Quality of Service (QoS). Facilitating the expression of diverse network resource demands, we also propose a new Virtual Network (VN) to Physical Network (PN) mapping approach, Graph Abstraction Network Architecture (GANA), which we innovatively introduce in this paper, allowing tenants to provide applications with cloud networking environment, thereby increasing the preservation performance. Our results show GANA-VDC can provide bandwidth guarantee and achieve low time complexity, yielding higher network utility.

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Section: Gana-vdc System Architecturementioning

confidence: 99%

GANA-VDC: Application-Aware with Bandwidth Guarantee in Cloud Datacenters

et al. 2019

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“…Hop encapsulation is inefficient. It is based on strict SR by inserting labels for the entire path into the packet header at the ingress node ( [14]- [16]) or the host side ( [13]); each label value indicates the outgoing port number at a hop switch. Since the network diameter is always large in the networks like public WANs or carrier networks, the label overhead of the packet header would be heavy if adopted this technique.…”

Section: A Previous Implementations Have Limitationsmentioning

confidence: 99%

Scalable explicit path control in software-defined networks

Luo

et al. 2019

Journal of Network and Computer Applications

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“…Recent years, source routing SDN has attracted some attention as it can reduce the number of entries used in SDN without losing the programmability of flows at the same time [24][25] [26]. However, source routing is not yet supported in the latest Openflow.…”

Section: Packet Header Encodingmentioning

confidence: 99%

Congestion Aware Fast Link Failure Recovery of SDN Network Based on Source Routing

2017

KSII TIIS

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The separation of control plane and data plane in Software Defined Network (SDN) makes it flexible to control the network behavior, while also causes some inconveniences to the link failure recovery due to the delay between fail point and the controller. To avoid delay and packet loss, pre-defined backup paths are used to reroute the disrupted flows when failure occurs. However, it may introduce large overhead to build and maintain these backup paths and is hard to dynamically construct backup paths according to the network status so as to avoid congestion during rerouting process. In order to realize congestion aware fast link failure recovery, this paper proposes a novel method which installs multi backup paths for every link via source routing and per-hop-tags and spread flows into different paths at fail point to avoid congestion. We carry out experiments and simulations to evaluate the performance of the method and the results demonstrate that our method can achieve congestion aware fast link failure recovery in SDN with a very low overhead.

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Exploring source routed forwarding in SDN-based WANs

Cited by 33 publications

References 9 publications

GANA-VDC: Application-Aware with Bandwidth Guarantee in Cloud Datacenters

GANA-VDC: Application-Aware with Bandwidth Guarantee in Cloud Datacenters

Scalable explicit path control in software-defined networks

Congestion Aware Fast Link Failure Recovery of SDN Network Based on Source Routing

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