Hi, At the OGF meeting next Wednesday, I would like to have a discussion on "buckets" (or, since the meeting is in England, perhaps "baskets" would be a more proper wording). Buckets are meant to split the broad range of topics that NML is supposed to cover in smaller subtopics, were perhaps different subgroups can decide which properties should go in which schema. In the way I think about it, each bucket will be a separate schema or ontology. Ideally, there should only be a few dependencies between the different schemas/buckets. Below is a list of buckets I propose. This list is a bit broad. I hope that the NML-WG at the OGF in Manchester can decide which buckets are on-topic, and which are off-topic for the NML-WG, or if there is a better division in buckets. Note that because the charter specifically noted not to be technology specific, there are no technology specific buckets (e.g. there is no "Ethernet" bucket). Between brackets is an example list of the objects that could go in that bucket. That doesn't mean it should go in that bucket: what goes in is decided later, now is only the time to define the buckets. In fact, it would be great if the "bucket filling team" determines there is an existing bucket, erm, schema that can be re-used. - topology (single layer) e.g. (virtual) devices, (virtual) interfaces, links, network connections Re-use existing terminology? e.g. ITU-T G.805, Graph theory, GMPLS... - physical equipment e.g. physical devices, locations, geographic location - organizational boundaries e.g. domains, owner domain, administrative domain, organization/people - device/domain capabilities can switch (at which layer), interworking - device configuration (current configuration, available labels) - usage (path setup request, reservation ID, specific path) - technology characteristics Thus meta-data to describe a technology, not technologies itself. e.g. layer, technology, adaptation - circuit switched properties e.g. labels, channels, capacity - packet switched properties e.g. source & destination labels, buffers, packet size, bandwidth - Layer 1 specifics e.g. TDM, WDM, Fiber, UTP, wireless, Fiber bundles (ducts), OTN, ... - Layer 2 specifics e.g. Ethernet (MAC + VLAN), ATM, PPP, L2TP, Myrinet/Infiniband, ... - Layer 3+ specifics e.g. IP, TCP, ... Regards, Freek Dijkstra