Partially disaggregated with no express channel TRANSPONDER ROADM Allocated (Filtered) Actual Observed OTSiA/NMC Labels not fully updated ODU (ODUCn) 1 OTU (OTUCn) Allocated Filtered Observed 1..c OTSiA_MCA OTSi_MC 1..r r Only MCA Connections MC is just a list element Only MCA CEPs MC CEP is just a list element Add MCs by adding to list OAM can have explicit points OTSiA_MCA OTSi_MC OTSiA_ MCA r*N N r r` OTSiA-MCA N N` OTSiA-MCA r*N n` OMS(A) – OMSs over same single adjacency OTsiA-MCA 1:1 OTSiA OTSiA_MCA OMS(A) – OMSs over same OTSs 1 OMS(A) OMS 1 1 OMS(A) OMS(A) 1 OMS 1 OMS Link OMS Link Line Port Add/Drop Port OMS Link OMS Link OTS OTS Link Degree Port

Partially disaggregated one channel with no express channel TRANSPONDER ROADM Allocated (Filtered) Actual Observed ODU (ODUCn) 1 OTU (OTUCn) Allocated Filtered Observed 1..c OTSiA_MCA OTSi_MC 1 1 Only MCA Connections MC is just a list element Only MCA CEPs MC CEP is just a list element Add MCs by adding to list OAM can have explicit points OTSiA_MCA OTSi_MC OTSiA_ MCA N 1 1 OTSiA-MCA N N` OTSiA-MCA OMS(A) – OMSs over same single adjacency OTsiA-MCA 1:1 OTSiA OTSiA_MCA OMS(A) – OMSs over same OTSs 1 OMS(A) OMS 1 1 OMS(A) OMS(A) 1 OMS 1 OMS Link OMS Link Line Port Add/Drop Port OMS Link OMS Link OTS OTS Link Degree Port

Aggregated with no express channel TRANSPONDER ROADM Allocated Filtered Actual Observed ODU (ODUCn) 1 OTU (OTUCn) 1..c OTSiA_MCA OTSi_MC 1..r r s*n OTSiA_MCA N r` n` N` MCA OTsiA-MCA OMS(A) – OMSs over same OTSs 1 OMS(A) OMS Link OTS OTS Link Degree Port

Partially disaggregated and express channel TRANSPONDER ROADM Allocated (Filtered) Actual Observed ODU (ODUCn) 1 OTU (OTUCn) Allocated Observed 1..c OTSiA_MCA OTSi_MC 1..r r s*n OTSiA_MCA OTSi_MC OTSiA_ MCA N Filtered Observed r r` OTSiA-MCA N N n n n` n` N` N` OTsiA-MCA q q` 1:1 OMS(A) – OMSs over same single adjacency SMCA SMC 1:1 1:1 1:1 1:1 SMCA SMC SMCA S SMC s SMC s` S` SMCA 1:1 OTSiA OTSiA_MCA OMS(A) – OMSs over same OTSs 1 OMS(A) OMS 1 1 OMS(A) OMS(A) 1 OMS 1 OMS Link OMS Link Line Port Add/Drop Port OMS Link OMS Link OTS OTS Link Degree Port

Partially disaggregated with express but no allocation TRANSPONDER ROADM Allocated Filtered) Actual Observed ODU (ODUCn) 1 OTU (OTUCn) 1..c OTSiA_MCA OTSi_MC 1..r r s*N OTSiA_MCA N Filtered Observed (Expected) OMS(A) – OMSs over same single adjacency SMCA SMC 1:1 1:1 1:1 1:1 SMCA SMC SMCA S SMC s SMC SMCA s` S` 1:1 OTSiA OTSiA_MCA OMS(A) – OMSs over same OTSs 1 OMS(A) OMS 1 1 OMS(A) OMS(A) 1 OMS 1 OMS Link OMS Link Line Port Add/Drop Port OMS Link OMS Link OTS OTS Link Degree Port

TAPI 2.1 Photonic LTP Model (still under review for 2.2) TRANSPONDER ROADM Service Interface Point Node Edge Point ODU (ODUCn) 1 Node Edge Point Group Connection End Point (TTP only) OTU (OTUCn) c ~FlexO 1..c OTSi OTSiA Connection End Point (CTP only) 1..r Connection End Point (TTP + CTP) r OTSi s*n MC MCA OTSiA Connection End Point (Inverse mux CTP only) 1:1 1:1 1:1 Media Channel CEP {lowerFreq, upperFreq} OTSi MCA MC r r` MCA Media Channel Assembly [{lowerFreq, upperFreq}, {lowerFreq, upperFreq}, ..] N MC n n` MC N` MCA q q` SMCA SMC MIP Down MEP Up MEP OPM 1:1 1:1 1:1 1:1 SMCA SMC SMC Not explicitly represented Not explicitly modeled SMCA S SMC s SMC SMCA s` S` p p` 1:1 SMC Non Intrusive Monitoring No Specific OAM signaling Optical Power Monitoring 1 OMS OMS 1 OMS 1 OMS Link OMS Link C/L bands Line Port Add/Drop Port 1..2 OTS OTS Link Degree Port

Five concepts related to carrying signal end-to-end MC: The channel resultant from the configuration of one or more filter. This is the frequency slot of the filter in ITU-T. MC: The emergent transponder to transponder effect of the serial concatenation of filters, including any filters in the modulator and demodulator OTSi-AS: The spectrum allocated to carry an OTSi. OTSi-OS: The actual spectrum occupied by an OTSi signal ObS: The observation spectrum. This may be wider/narrower than the actual allocated spectrum.

Challenges OTSiA_MCA is a channel only when there is no express channel. Otherwise it is the allocation (read Kam’s notes to get the terms right). Usage Allocation Channel (with guards) Perhaps it is “imposed” v “freeform”… Or perhaps it is always separated between OTSiA_allocation_usage and channel (which is what ever it needs to be)

ROADM Core RDM1 RDM3 RDM4 RDM2 RDM5 Transponder Transponder