Survivability Mechanisms of Generalized Multiprotocol Label Switching

Author(s):  
M. C.R. Medeiros ◽  
N. S.C. Correia

Internet protocol (IP) over optical (IP-over-optical) networks is the widely accepted solution to meet the ever increasing demands of IP traffic. In an IP-over-optical network, the IP routers are attached to an optical core network, composed by optical cross-connects (OXC) that are interconnected by dynamically established optical wavelength channels called lighpaths (Rajagopalan, Pendarakis, Saha, Ramamoorthy, & Bala, 2000). To control such lightpaths in a dynamic, efficient, and realtime manner, generalized multiprotocol label switching (GMPLS) based control plane has been proposed by the Internet engineering task force (IETF) in the RFC 3945 edited by Mannie (2003).

2021 ◽  
pp. 457-490
Author(s):  
Debasish Datta

The task of network control and management is generally realized in two logical planes – control and management – which collaboratively operate to ensure smooth, secure, and survivable traffic flow in the data plane of the network. Some of the functionalities are realized in the control plane, needing real-time execution, such as recovery from network failures, and network reconfiguration due to traffic variation. Other functionalities deal with performance monitoring, configuration management, network security, accounting and billing etc., which are less time-sensitive and are addressed by the management plane. We first discuss the philosophy of multiple-layer abstraction of telecommunication networks, including control, management, and data planes, and then describe various network control and management techniques used in optical networks: operation, administration, and management (OAM) in SONET, generalized multiprotocol label switching (GMPLS), automatically switched optical network (ASON), and software-defined optical networking (SDON) in WDM networks. (141 words)


Author(s):  
Weiqiang Sun ◽  
Wei Guo ◽  
Yaohui Jin ◽  
Lilin Yi ◽  
Weisheng Hu

Generalized Multiprotocol Label Switching, or GMPLS, is a suite of protocols to enable automated resource discovery, automated service provisioning and automated failure recovery. In recent years, a considerable number of efforts have been seen in the area of putting GMPLS into advanced networking/service environments. This is exemplified by the various research programs in the US, Europe, and Asia. In such programs, GMPLS has not only been used as a way to reduce management complexity and increase reliability, like the industry is doing right now, but also it is used as a new way for service provisioning. In this chapter, the authors first review activities in using GMPLS controlled optical networks in high performance computing environments. They try to identify the benefits, as well as the limitations in such networking practices. Then they introduce the past and on-going standardization work in the Internet Engineering Task Force (IETF) about GMPLS network performance characterization and measurement. Finally, the authors present the performance measurement results from a number of deployed GMPLS networks.


2001 ◽  
Vol 39 (7) ◽  
pp. 144-151 ◽  
Author(s):  
A. Banerjee ◽  
L. Drake ◽  
L. Lang ◽  
B. Turner ◽  
D. Awduche ◽  
...  

2011 ◽  
Vol 474-476 ◽  
pp. 1483-1486
Author(s):  
Ning Zhang ◽  
Mao Chang Ge

With the rapid development of optical network technology, a thing worth noting is the generalized multi-protocol label switching (GMPLS) technology in optical network has been more used, mainly in auto-switching transmission network. GMPLS is an advanced protocol which is essential for managing a diverse and complex networks, GMPLS has caused technical challenges in its deployment in optical networks. In this paper, we analyze the evolution to optical network, and discuss the GMPLS technology and its applications. GMPLS will become the important protocol in future optical network.


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