25 January 2018
Hing-Kam Lam (E)
Chris Hartley (D)
Bernd Zeuner (D, E)
Yuji Tochio (E)
Chris talked through the rationale. The critical value is in constraining the system instance structure formed by the instantia of a number of interrelated classes.
Malcolm agreed that this is important and relates to work in G.800.
Chris moved on to the case where a class loops must not form an instance loops.
There was a brief discussion about more complex foldback spirals etc.
Chris then moved on to constraints on constraints and multi-loop constraints.
Need to not try to boil the ocean, but need to explore.
This is a vital capability to enable true automation and zero touch.
Malcolm asked for the contribution to be posted.
Chris will post with the original number with CH in the number as per the new scheme.
Chris noted that OMG may have done some work on this.
Nigel noted that Chris Lauwers is using Papyrus IML to capture the TOSCA metamodel and that he may want to leverage our work.
Action: Nigel: Contact Chris Lauwers regarding Tosca work in this area.
Packet layer example (TR-512.A.6)
Nigel noted that some of the figures in .A.5 needed to be adjusted during the final editing cycle so taht they aligned with the key in TR-512.1. Nigel suggested that Xiang take a look at the formal 1.3.1 release at https://www.opennetworking.org/projects/open-information-model-tooling/.
Looked at the figure showing STM-1 circuit emulation over Ethernet.
There were several concerns with the figure.
Action: Malcolm & Xiang: Meet during ITU-T meeting, face to face, to discuss and construct two figures, one for Ethernet over SDH and the other for SDH over Ethernet.
Topology example usage (not covered in the meeting)
TR-512 v1.3.1-info Publication
1.4 moving to oxygen Papyrus 3.2.0 RC4
LS to ITU-T and MEF
UML-OpenAPI Mapping status
March 2018 London Meeting
v1.4 work item status