Distributed resilient architecture for ethernet networks

Farkas, János; Antal, Csaba; Tóth, Gyula; Westberg, Lars

doi:10.1109/drcn.2005.1563919

Cited by 17 publications

(9 citation statements)

References 6 publications

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“…The trees should satisfy the condition to handle a link failure: For each link, there is at least one spanning tree that does not include that particular link [7]. Commonly, more spanning trees should be generated to utilize network resources efficiently.…”

Section: Multiple Spanning Trees Generationmentioning

confidence: 99%

Local Restoration in Metro Ethernet Networks for Multiple Link Failures

Shibu¹,

K²,

V.T³

2014

IJCATR

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Ethernet a popular choice for metropolitan-area networks (MAN) due to simplicity, cost effectiveness and scalability. The Spanning-Tree based switching mechanism, which is considered to be very efficient at avoiding switching loops in LAN environment, is a performance bottleneck in Metro network context. Handling of link failure is an important issue in metro Ethernet networks. A link failure may result in serious service disruptions. A local restoration method for metro Ethernet with multiple spanning trees, which aims at fast handling of single link failures in a distributed manner, have been proposed in the literature. In this paper, we propose a local restoration mechanism that uses MULTILINK algorithm for solving multiple link failures

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Section: Multiple Spanning Trees Generationmentioning

confidence: 99%

Local Restoration in Metro Ethernet Networks for Multiple Link Failures

Shibu¹,

K²,

V.T³

2014

IJCATR

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“…The main draw back of STP is its slow convergence. The failover time is in order of ten seconds, typically from 30 to 60 seconds, and depends on the number of network devices [6].…”

Section: Existing Resiliency Techniques In Ethernetmentioning

confidence: 99%

Architecture design of realtime dual-ring optical industrial Ethernet and its FPGA implementation

2006

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Ethernet has been a hotspot in industrial communication. Its intrinsic non-determinism and slow failure recovery mechanism are two major obstacles of Ethernet's application in the industrial environment. To address these two problems, this paper proposes a novel fast recovery and real-time optical industrial Ethernet architecture based on dual-ring topology, and presents some test results from our partly implementation of the architecture. First, resource utlilization of the FPGA implementation shows that the proposed architecture is cost effective. Second, it is seen that recovering from a single failure costs no more than 30 ms, far less than traditional resilience techniques in Ethernet. Besides, end to end delay with no background traffic, which is instructive to the future design of the scheduling algorithms, is also presented.

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“…The whole network can be used by means of the Multiple Spanning Tree Protocol, which opens the possibility of configuration of multiple instances of traffic engineered spanning trees. Another possibility is to turn off spanning tree protocols and configure loop free VLANs designed by a traffic engineering method as proposed in [3]. A further option is to configure directly the Address Forwarding Tables (AFT) of bridges and turn off both address leaning and spanning tree protocols as discussed in PBB-TE [4].…”

Section: Introductionmentioning

confidence: 99%

Automatic Discovery of Physical Topology in Ethernet Networks

Farkas

Oliveira

Salvador

et al. 2008

22nd International Conference on Advanced Information Networking and Applications (Aina 2008)

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Ethernet is becoming increasingly popular in metro and access networks due to the high bandwidth available at low cost. Nonetheless, native Ethernet lacks some features that are important for sophisticated network management; providing accurate knowledge on the physical topology is one of them. Therefore, automatic physical topology discovery in support of network management is essential in Ethernet networks. Former work either focused on Layer-3 topology discovery or only provided the active topology excluding the physical links inactivated by Rapid Spanning Tree Protocol [1]. This paper introduces a novel mechanism capable of automatically discovering the entire physical topology of Ethernet networks. Our algorithm collects information available even in low-cost offthe-shelf Ethernet switches and then calculates the physical topology of the entire network. This paper describes the method and its implementation in a testbed network for assessing the performance and the robustness of the mechanism.

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Distributed resilient architecture for ethernet networks

Cited by 17 publications

References 6 publications

Local Restoration in Metro Ethernet Networks for Multiple Link Failures

Local Restoration in Metro Ethernet Networks for Multiple Link Failures

Architecture design of realtime dual-ring optical industrial Ethernet and its FPGA implementation

Automatic Discovery of Physical Topology in Ethernet Networks

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