As is customary, I have done my AD review of draft-ietf-nvo3-use-case-14. First, I would like to thank the authors - Lucy, Linda, Mehmet, Aldrin, & Vishwas - for their work on this document. It has noticeably improved since the last time I reviewed it.
As part of my review, I do have a few minor comments below that I would like to see addressed. I am going to assume that the authors will be responsive and request an IETF Last Call now - and schedule this document for the Jan 19 IESG telechat. I have also requested a Routing Directorate review. Minor: 1) Sec 1: "Independent address spaces in individual NVO3 networks such as MAC, IP, TCP/UDP etc." I have no idea what you mean by TCP/UDP being an independent address space. Please either clarify or remove it. 2) Sec 2:"It also means that the nodes in the infrastructure network (except tunnel end point nodes) carry encapsulated NVO3 traffic but not aware of the existence of NVO3 networks." From discussions on the NVO3 encapsulation, there seem to be some perspectives that nodes in the infrastructure network may have reasons (OAM, etc) to be aware of the NVO3 networks. Can you tone this down to the following? "It also means that the nodes in the infrastructure network (except tunnel end point nodes) carry encapsulated NVO3 traffic but are not responsible for decapsulating or encapsulating NVO3 traffic." 3) Sec 4.1:"For the servers equipped with Hypervisor-based virtual switches, some may support VxLAN [RFC7348] encapsulation, some may support NVGRE encapsulation [RFC7637], and some may not support any encapsulation." This should at least mention the existence of the NVO3 encapsulation and indicate that VxLAN and NVGRE are not standards. For instance: "For the servers equipped with Hypervisor-based virtual switches, some may support the standardized NVO3 encapsulation, some may not support any encapsulation, and some may support documented (e.g. VxLAN [RFC7348], NVGRE [RFC7637], etc.) or proprietary encapsulations." Nits: i) Sec 2: "It also means that the nodes in the infrastructure network (except tunnel end point nodes) carry encapsulated NVO3 traffic but not aware of the existence of NVO3 networks." Should be "...but are not aware..." Thanks, Alia
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