Remote Control for ROADMs in IP-over-CWDM Networks

Koyama, Osanori; Hashimoto, M.; Ueno, Akira; Katsuyama, Yutaka

doi:10.1093/ietcom/e91-b.9.2991

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…The type of the OTRs was standard 1000Base‐ZX, providing a bit rate of 1 Gbps. To control the ROADMs, a control system (CS) was connected to the L3SW in Node 1 to send control packets [12] to each ROADM via the L3SW. A LAN analyzer (LA) was also connected to the L3SW in Node 1 to monitor packets when the lightpaths are reconfigured, and a personal computer (PC) was connected to each node to send the packets among the nodes.…”

Section: Reconfiguration Performance Of Stackable Roadmmentioning

confidence: 99%

Wavelength‐transparent IP‐over‐CWDM network with stackable ROADMs for best effort performance

Nooruzzaman

Kawai

Thủy

et al. 2012

IEEJ Transactions Elec Engng

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Stackable reconfigurable optical add/drop multiplexers (S‐ROADMs) have been proposed for use in IP over coarse wavelength‐division multiplexing (CWDM) networks so as to provide capabilities of remote lightpath reconfiguration and manual ROADM reconfiguration under the best effort transmission specified by the service level agreement. The S‐ROADM can be constructed by connecting modules with different wavelengths required in the node. The experimental results clarify that the S‐ROADM can add/drop or pass through the wavelengths successfully, providing no limit to the passing‐through (PT) wavelengths, that is, ensuring the wavelength transparency in the network. The S‐ROADMs could remove congestions by adding a lightpath remotely within a recovery time with degraded SLA. The transmission break time was also within the recovery time when adding a module manually to the in‐service S‐ROADM to increase bandwidth to be provided to new users. As a result, the S‐ROADMs provide more flexible CWDM networks in terms of scalability and reconfigurability. © 2012 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Reconfiguration Performance Of Stackable Roadmmentioning

confidence: 99%

Wavelength‐transparent IP‐over‐CWDM network with stackable ROADMs for best effort performance

Nooruzzaman

Kawai

Thủy

et al. 2012

IEEJ Transactions Elec Engng

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“…The CMS sends a control packet to each S‐ROADM in the network. In fact, the routing of the control packets for the lightpath reconfiguration was designed such that the packets are transferred via a network interface (IF) [10]. The network IF is an electrical control data IF of the S‐ROADM.…”

Section: Basic Design Of Stackable Module With An Optical Amplifiermentioning

confidence: 99%

Stackable ROADM with optical amplifier for use in IP‐Over‐CWDM ring networks

Koyama

Nooruzzaman

Thủy

et al. 2012

IEEJ Transactions Elec Engng

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A stackable module with a bidirectional coarse wavelength division multiplexing (CWDM) amplifier is proposed to introduce the optical amplifier into an stackable-reconfigurable optical add/drop multiplexers (S-ROADM) for use in an IP-over-CWDM ring network, and the performance is evaluated experimentally. Packet transfer changes are monitored during the lightpath reconfiguration, which needs optical amplification. The result clarify that the lightpaths are reconfigured successfully, including the remote activation of the amplifiers. As a result, the stackable feature of the amplifier module enables us to provide a costeffective introduction into the network on an implement-it-when-necessary base in a fully compatible way with the existing S-ROADM modules when constructing the S-ROADM with an amplifier. Therefore, the amplifier module can be used in the same way as the ROADM modules to construct the S-ROADM, providing manually adding capability of the amplifier to inservice networks. Thus, the amplifier module has a big advantage to use it flexibly and economically in the IP-over-CWDM ring networks.

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