Create minutes-2022-02-08.md

minutes/minutes-2022-02-08.md

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+# YANG model for Optical Impairment aware Topology weekly (February 8th,2022)
+
+
+****Attendees****
+- [x] Dieter Beller
+- [x] Aihua Guo
+- [x] Esther Lerouzic
+- [x] Julien Meuric
+- [x] Italo Busi
+- [x] Gert Grammel
+- [x] Gabriele Galimberti 
+- [] Yuji Tochio
+- []Enrico Griseri
+- [x] Sergio Belotti
+- [] Victor Lopez
+- [] Haomian Zheng
+- [] Igor Bryskin
+- [] Brent Foster
+- [] Jiang Sun (CMCC)
+- []Jan Kundrat
+
+
+
+## Discussion
+
+
+### Review APs (action point) 
+
+#### AP OTSi global unique identification: Dieter to propose text
+##### status: ON GOING
+##### issue #88 https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/88
+
+To be addressed in the new version update for IETF 113. 
+
+#### AP on discovery: AP @Italo  to add specific issue to clarify how the link between external shelf and ROADM is discovered
+##### status: ON GOING
+
+Italo said he will add the issue by this week.
+
+### issues on agenda
+
+#### issue#69 : Draft text clean-up for "channel" vs. "media-channel"
+https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/69
+
+AP Dieter/Sergio: to introduce a text to highlight that media channel is not related to end to end path while the OTSi/OTSiG represents E2E.
+
+#### issue#92 :oms-element-uid should be mandatory
+https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/92
+
+The issue has been closed with comment (seehttps://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/92#issuecomment-1031492947)
+
+#### issue#101 :Replace OMS/OTS link with OMS/OTS Media Channel Group (see: ITU-T Recommendations G.872 and G.807
+https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/101
+
+Reated to this issue, Dieter shown the text he prepared to be added in the draft.
+There were some comments in the github.
+In particular the figure 2 of the draft was analyzed.
+Gert asked where the LTP should be put, between ROADM and PA or where.
+Aihua:suggested that OMS-MCG should be represented as TE-link 
+There was a general agreement to refine a bit the picture to be more aligned with the new terminology introduced (WDT-TE-node etc.) and 
+the proposed text about OMS/OTS-MCG
+
+Post-meeting notes: short meeting among Dieter, Sergio and Italo to check figure 2 and agree on the modifications based on comments received during the call
+AP: Dieter to refine the text and figure 2 of the draft based on received comments.
+
+#### issue#102 : copropagating raman
+https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/102
+
+There is agreement to introduce also co-propagating option. The model as it is can support the feature using type-variety.
+Only one point has to be verified: if in the case of co-propagation is is enough to report the gain.The power pump can be part of specification in the type-variety.
+It is needed to check this point, verifying that with TIP people.
+AP: @Esther to check that.
+
+The text in the draft has to be updated without the limitation of counter-propagating RAMAN.
+
+#### issue#95 : Boundary between Layer 0 and Layer 1
+https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang/issues/95
+
+The issue is on github for a while. 
+There is material already uploaded. 
+It seems that the picture 1 of the package well represent the different part of the process depending of layer.
+But still questions need to be investigated :
+Is inverse-multiplexing the input signal of OTSiG ?
+The basic problem to be solved is which are the parameters our model need to provide to support e.g.the setup of an ODU link?
+
+The time was over when discussion is still on going.
+
+
+## next meeting: February 15th 2022