Separating Control Software from Routers

Ramjee, Ramachandran; Ansari, Farwa; Havemann, M.; Lakshman, T. V.; Nandagopal, Thyaga; Sabnani, Krishan K.; Woo, T.Y.C.

doi:10.1109/comswa.2006.1665183

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…Separation of control plane from forwarding elements (such as current IP router) has been proposed and analyzed in recent research work [3,4]. The IETF ForCES (forwarding and control element separation) working group is providing the framework and associated standardized protocol for information exchange between the control element and the forwarding element for open programmable networks [11].…”

Section: B Separation Of Control Plane and Forwarding Planementioning

confidence: 99%

“…The next generation IP routers are expected to be developed in (i) multi-layer structure with packet-optical convergence [1,2], (ii) control-forwarding separation [3,4], and (iii) network operating system that enhances programmability and flexibility [1]. Since fast fault restoration is essential in carrier grade transport network [5][6][7][8] for QoS-guaranteed service provisioning and efficient traffic engineering, the fault detection and protection switching functions in multi-layer transport network with control-forwarding separation should be optimally integrated.…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of multi-layered protection switching with control-forwarding separation

Jeong¹,

Lee

Kim

2012

2012 14th Asia-Pacific Network Operations and Management Symposium (APNOMS)

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Fast fault restoration is essential in carrier-grade transport network for QoS-guaranteed service provisioning and efficient traffic engineering. The performances of multi-layered protection switching with control-forwarding separation, however, have not been studied in detail. In this paper, we propose a fast fault restoration in multi-layered network with Control-Forwarding separation. The proposed scheme leverages the merits of each layer, such as fast fault detection in WDM Optical layer, traffic engineering in MPLS layer, and hierarchical priority-based resource sharing in IP layer. The performances of the proposed fast fault restoration with controlforwarding separation are analyzed with a series of systematic tests. From the experiments, we found that the fault restoration time in IP/MPLS network with control-forwarding separation is less than 10 msec in a network with 9 forwarding elements in 3 x 3 mesh topology, while it takes around 90ms in a network with 256 nodes (16 x 16) mesh network. These results show that the multi-layered network with control-forwarding separation has scalability for carrier-grade QoS-guaranteed service provisioning. 1

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Section: B Separation Of Control Plane and Forwarding Planementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance analysis of multi-layered protection switching with control-forwarding separation

Jeong¹,

Lee

Kim

2012

2012 14th Asia-Pacific Network Operations and Management Symposium (APNOMS)

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“…This helps to improve routers' resiliency at the time that it decreases its failure probability [1]. In the AGIR's case, not only the later is true but also introduces a new problem to its RS.…”

Section: Computing Aggregated Ip Routers Members Routesmentioning

confidence: 99%

Extending Routers Utilisability and Life Cycle through Automated Configuration Management

Rodríguez

Hoerdt

Mathy

2009

IP Operations and Management

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Abstract. We present the design of a distributed router platform aimed at consolidating multiple hardware routers. The goal of the approach is twofold: firstly decouple the logical routing and forwarding functionality from the limitations of the hardware that runs it, through automated configuration management only; and secondly, give component routers a longer lease of life, as constituting parts of a larger router system. We focus on the logical intra-domain routing function provided by routers, and show the need for a centralized intra-domain route server.

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“…There are several architectures that are being proposed to build programmable routers [16], [14], [7]. A common theme in all these architectures is the separation of the control and forwarding plane.…”

Section: Related Workmentioning

confidence: 99%

Latency equalization

Thottan²,

Li³

2008

Proceedings of the ACM Workshop on Programmable Routers for Extensible Services of Tomorrow

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Today the Internet is the primary medium for deploying new real time services such as gaming and distributed online live music concerts. Different network services have different expectations from the routing infrastructure. Some network services require conventional routing paths optimized for low latency or low congestion. However, real-time interactive services such as online gaming and distributed live music performance require more than just low latency. They require Latency EQualization (LEQ) among participating users. Although LEQ could be performed by the client or the server, end-system techniques for estimating network conditions are often inaccurate. Instead, we argue that the network should provide a LEQ service. We propose a LEQ routing architecture that can leverage programmable hub nodes. By deploying a few flexible, well-placed programmable nodes to redirect traffic, we can flexibly support both latency equalized and low latency routing services simultaneously. For LEQ routing, programmable hub nodes provide services such as application packet identification, application level packet processing and latency equalized routing paths. Extensive simulation studies on provider network topologies show that using just a few programmable nodes we can achieve an 80% improvement in LEQ over the conventional architecture that uses shortest path routing.

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Separating Control Software from Routers

Cited by 7 publications

References 14 publications

Performance analysis of multi-layered protection switching with control-forwarding separation

Performance analysis of multi-layered protection switching with control-forwarding separation

Extending Routers Utilisability and Life Cycle through Automated Configuration Management

Latency equalization

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