Accounting for Shared Regenerators in GMPLS-Controlled Translucent Optical Networks

In translucent optical networks, the usage of sparse opto-electronic regenerators permits to overcome optical signal quality degradations. In dynamic translucent optical networks, where lightpaths are established upon request, regenerators can be effectively time shared. However, the current generalized multiprotocol label switching (GMPLS) protocol suite does not consider how to dynamically reserve and release shared regenerators and how to distribute regenerator availability information to network nodes. In this paper, four Translucent Lightpath Dynamic Provisioning (TLDP) schemes are proposed to establish lightpaths in dynamic distributed translucent optical networks. TLDP schemes differently combine the utilization of specific open shortest path first-traffic engineering (OSPF-TE) or resource reservation protocol-traffic engineering (RSVP-TE) extensions and shared regenerator availability information. Simulation results show that TLDP scheme based on OSPF-TE extensions obtains lower lightpath setup time, but higher control plane load than TLDP schemes based on RSVP-TE extensions. Moreover, schemes based on RSVP-TE extensions or on OSPF-TE extensions obtain the same lowest blocking probability.

[1]  Luca Valcarenghi,et al.  GMPLS extensions to Encompass Shared Regenerators in Transparent Optical Networks , 2007 .

[2]  P. Castoldi,et al.  Enhancing GMPLS Signaling Protocol for Encompassing Quality of Transmission (QoT) in All-Optical Networks , 2008, Journal of Lightwave Technology.

[3]  Nada Golmie,et al.  Performance comparison of agile optical network architectures with static vs. dynamic regenerator assignment , 2005, 2nd International Conference on Broadband Networks, 2005..

[4]  Giovanni Martinelli,et al.  GMPLS Signaling Extensions for Optical Impairment Aware Lightpath Setup , 2010 .

[5]  P. Castoldi,et al.  Lightweight RSVP-TE extensions to account for Shared Regenerators in Translucent Optical Networks , 2007, 2007 Photonics in Switching.

[6]  Ezhan Karasan,et al.  Regenerator Placement and Traffic Engineering with Restoration in GMPLS Networks , 2004, Photonic Network Communications.

[7]  Wataru Imajuku,et al.  Framework for GMPLS and PCE Control of Wavelength Switched Optical Networks (WSON) , 2011 .

[8]  Elio Salvadori,et al.  Signalling-Based Architectures for Impairment-Aware Lightpath Set-Up in GMPLS Networks , 2007, IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference.

[9]  Luca Valcarenghi,et al.  Challenges and requirements for introducing impairment-awareness into the management and control planes of ASON/GMPLS WDM networks , 2006, IEEE Communications Magazine.

[10]  Xi Yang,et al.  Dynamic routing in translucent WDM optical networks: the intradomain case , 2005, Journal of Lightwave Technology.

[11]  Angela Chiu,et al.  Issues for routing in the optical layer , 2001, IEEE Commun. Mag..

[12]  P. Castoldi,et al.  Probe-based schemes to guarantee lightpath quality of transmission (QoT) in transparent optical networks , 2008, 2008 34th European Conference on Optical Communication.

[13]  Rodney S. Tucker,et al.  Translucent optical networks: the way forward [Topics in Optical Communications] , 2007, IEEE Communications Magazine.

[14]  Byrav Ramamurthy,et al.  Sparse Regeneration in Translucent Wavelength-Routed Optical Networks: Architecture, Network Design and Wavelength Routing , 2005, Photonic Network Communications.

[15]  P. Castoldi,et al.  Label Preference Schemes for Lightpath Provisioning and Restoration in Distributed GMPLS Networks , 2009, Journal of Lightwave Technology.

[16]  Maher Ali,et al.  Enhancements to multi-protocol lambda switching (MP/spl lambda/S) to accommodate transmission impairments , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[17]  Luca Valcarenghi,et al.  Distributing Shared Regenerator Information in GMPLS-Controlled Translucent Networks , 2008, IEEE Communications Letters.

[18]  Atsushi Iwata,et al.  Crankback Signaling Extensions for MPLS and GMPLS RSVP-TE , 2007, RFC.

[19]  Gangxiang Shen,et al.  Segment-based approaches to survivable translucent network design under various ultra-long-haul system reach capabilities (Invited) , 2003 .

[20]  Andrea Fumagalli,et al.  Regenerator Placement with Guaranteed Connectivity in Optical Networks , 2007, ONDM.

[21]  Ioannis Tomkos,et al.  Technological challenges on the road toward transparent networking , 2008 .

[22]  Rodney S. Tucker,et al.  Translucent Optical Networks: The Way Forward , 2007 .