A novel end-to-end fault detection and localization protocol for wavelength-routed WDM networks

Hongqing Zeng; Alex Vukovic; Changcheng Huang

doi:10.1117/12.628194

13 October 2005 A novel end-to-end fault detection and localization protocol for wavelength-routed WDM networks

Hongqing Zeng, Alex Vukovic, Changcheng Huang

Proceedings Volume 5970, Photonic Applications in Devices and Communication Systems; 59702D (2005) https://doi.org/10.1117/12.628194
Event: Photonics North, 2005, Toronto, Canada

Abstract

Recently the wavelength division multiplexing (WDM) networks are becoming prevalent for telecommunication networks. However, even a very short disruption of service caused by network faults may lead to high data loss in such networks due to the high date rates, increased wavelength numbers and density. Therefore, the network survivability is critical and has been intensively studied, where fault detection and localization is the vital part but has received disproportional attentions. In this paper we describe and analyze an end-to-end lightpath fault detection scheme in data plane with the fault notification in control plane. The endeavor is focused on reducing the fault detection time. In this protocol, the source node of each lightpath keeps sending hello packets to the destination node exactly following the path for data traffic. The destination node generates an alarm once a certain number of consecutive hello packets are missed within a given time period. Then the network management unit collects all alarms and locates the faulty source based on the network topology, as well as sends fault notification messages via control plane to either the source node or all upstream nodes along the lightpath. The performance evaluation shows such a protocol can achieve fast fault detection, and at the same time, the overhead brought to the user data by hello packets is negligible.

Citation Download Citation

Hongqing Zeng, Alex Vukovic, and Changcheng Huang "A novel end-to-end fault detection and localization protocol for wavelength-routed WDM networks", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 59702D (13 October 2005); https://doi.org/10.1117/12.628194

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