SG15 update – October 2018 Media architecture Stephen Shew SG15 liaison rapporteur to ONF on SDN Architecture 2018-10-23

SG15 Plenary#3 – 08-19 October 2018 SG15 had its 3rd plenary meeting 08-19 October 2018 Three liaisons were written to ONF Update on media architecture and management Updates to Element Management Modeling Coordination of Ethernet information and data modelling work This presentation focuses on the 1st liaison out of Q12/15 & Q14/15 G.807 (ex G.media) Architecture of optical media, progressed at this meeting G.876 (ex G.media-mgmt.) Management Requirement and Information Model for Media also progressed

Architectural additions and conclusions Liaison points 1 2 3 4 Nomenclature – Signals vs media Generalization of optical parameter monitor symbol Input to the Modulation function Signal with multiple information streams

Nomenclature – Signals vs media Existing SG15 architectural Recommendations have not specified the media. G.872 (2017) started to illustrate the OTSi with a thick blue line, but also labelled them with media names in some figures (e.g., fibre, free space) Illustrating a signal traversing multiple media has not been possible New nomenclature adopted for G.807 is: Signal Guided media (e.g., fibre, copper wire) Unguided media (e.g., free space) Example of signal in guided media

Generalization of optical parameter monitor symbol Have used the “home plate” symbol for optical power monitor, and optical parameter monitor functions. The general characteristic of such functions is that they operate on a signal, but do not observe nor alter, any information that may be in the signal. Could consider other functions such as high speed quantization (analogue to digital sampling) for this symbol. signal (analogue) Function label digital information stream

Example of nomenclature and function on signal A modulation operates on incoming data and outputs a wireless signal that propagates in free space. A function that operates on this wave is high speed sampling (the “A/D”). It outputs a stream of digital information which are the samples in numerical representation. The digital wireless information is shown crossing a metallic media such as a backplane, in an EM signal. This is then carried in an optical client such as OTN, over an OTSi. The digital wireless information is reconstituted as the radio wave in a D/A function before being demodulated to recover the original digital information. ModulationX Free space ModulationNRZ Fibre “Wireless TSi” OTSi Media port signal/wave Digital data Digital wireless OIF CEI-04.0 signal metal Demod NRZ ModulationY Demod Y digital data Digital-lane Demod X A/D on Wave Digital-lane/digital-client D/A on Wave

Input to the modulation function ONF liaison “It would be useful to have a generic label/name for the electrical AI entering the optical modulator/demodulator” Q12 & Q14 agree to use a shaded adaptation symbol It was agreed that when exposed, the information stream input to a modulation should be identified Single digital information stream digital-lane/digital-client Multiple digital information streams Modulation Modulation

Example of identified information stream to modulation G.709.3 “Flexible OTN long-reach interfaces” identifies the FOICx.k (FlexO Interface of order Cx with k lanes, see G.Sup58) lane as input to OTSi. Note: SOTU and MOTU terminology will be retired.

Signal with multiple information streams In G.698.4, a message channel is a 2nd information stream added to a common signal using another modulation. It is not two signals. Management implications have not been explored. Fibre OTSi Modulation X&Y Demod X&Y Message channel information Client information stream