Model navigation between inventory and topology

[italobusi]

Hardware inventory is concern only with the physical ports (entities where the fibers are plugged-in) and not with logical ports (e.g., VLANs, LAGs)

Need to clarify the relationship between logical port and physical port

See https://github.com/italobusi/ietf-network-inventory/issues/32#issuecomment-1041621665

[italobusi]

Slides from @YuChaode : Solution of inventory and topology travelling.pptx

[italobusi]

See also: https://github.com/italobusi/ietf-network-inventory/issues/31#issue-1068161227

[italobusi]

Updated slides from @YuChaode : Solution of inventory and topology travelling.pptx

[italobusi]

2022-11-16 Network Inventory call

Reviewed the slides prepared by Chaode: https://github.com/italobusi/ietf-network-inventory/files/10028873/Solution.of.inventory.and.topology.travelling.pptx

The relationship between an inventory element (e.g., a NE) and a topological element (e.g., a node) is 1:n, with n>=1. A NE can be associated with only one node, in case:

• the NE is a single-layer NE (e.g., a ROADM NE associated with a node within a L0 topology instance)
• the NE is a multi-layer NE associated with a multi-layer node (e.g., an OTN+WDM NE associated with a node within a multi-layer L0+OTN topology instance) A NE can be associated with more than one node in case the NE is a multi-layer associated with multiple single-layer nodes (e.g., an OTN+WDM NE associated with a node within a L0 topology instance and with another node within the OTN topology instance)

Option 1 seems the preferred option among the participants.

The topology-id reference applies only to physical nodes, links and LTPs. When it is needed to know the NEs associated with an abstract node, the topology-id of the physical nodes in the underlay topology should be used instead.

The discussion will continue next week.

[italobusi]

2022-11-23 Network Inventory weekly call

Jeff: For solution3, i remembered that Huawei didn't provide UUID format in 2019 POC test.

Chaode: Yes, the version we used in 2019 POC test is a test version. Our developers prefer uuid format right now, because it is easier to be unique.

Jeff: OK, but I cannot confirm which solution is the best solution for the navigation.

Chaode: Maybe we can share this slide with Anton, he can help to make a judge from orchestrator’s perspective.

[italobusi]

Closed with PR #72