The University of Adelaide, School of Computer Science 22 February 2019 Optical Networks: A Practical Perspective, 3rd Edition Chapter 8 Control and Management Copyright © 2010, Elsevier Inc. All rights Reserved Chapter 2 — Instructions: Language of the Computer

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.1 Chapter 8 Figure 8.1 Overview of network management in a typical optical network, showing the network elements (OLTs, OADMs, OXCs, amplifiers), the management systems, and the associated interfaces. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.2 Chapter 8 Figure 8.2 Layers within OTN. The optical layers are the optical channel layer (OCh), optical multiplex section (OMS) layer, and the optical transmission section (OTS) layer. The electronic layers are the optical channel data unit (ODU) layer and the optical channel transport unit (OTU). Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.3 Chapter 8 Figure 8.3 Interoperability between WDM systems from different vendors, showing all-optical subnets from different vendors interconnected through transponder/ regenerators. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.4 Chapter 8 Figure 8.4 Forward and backward defect indicator signals and their use in a network. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.5 Chapter 8 Figure 8.5 Using hierarchical defect indicator signals in a network. Defect indicators are used at the OTS, OMS, OCh, and ODU sublayers. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.6 Chapter 8 Figure 8.6 Different types of optical layer overhead techniques. The OSC is used hop by hop. The pilot tone is inserted by a transmitter and can be monitored at elements in an all-optical subnet until it is terminated at a receiver. The rate-preserving overhead is used end to end across multiple subnets through intermediate regenerators. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.7 Chapter 8 Figure 8.7 The optical supervisory channel, which is terminated at each amplifier location. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.8 Chapter 8 Figure 8.8 Usage of wavelengths in the network. Traffic is carried on the O (original), S (short), C (conventional), or L (long) wavelength bands. Raman pumps, if used, are located about 80–100 nm below the signal. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.9 Chapter 8 Figure 8.9 Different control plane models for interconnecting client layers with the optical layer. (a) Overlay model, (b) overlay+ model, (c) peer model, and (d) augmented model. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.10 Chapter 8 Figure 8.10 Different types of interfaces between a WDM optical network and its clients. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.11 Chapter 8 Figure 8.11 Open fiber control protocol in the Fibre Channel standard. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.12 Chapter 8 Figure 8.12 State machine run by each node for the open fiber control protocol in the Fibre Channel standard. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.13 Chapter 8 Figure 8.13 A combined SONET/WDM optical network for Problem 8.2. Copyright © 2010, Elsevier Inc. All rights Reserved

Copyright © 2010, Elsevier Inc. All rights Reserved Figure 8.14 Chapter 8 Figure 8.14 Example for Problem 8.3. Copyright © 2010, Elsevier Inc. All rights Reserved