From: vilaltar Date: Mon, 18 Jun 2018 13:26:33 +0000 (+0100) Subject: New feature request: Network Slicing X-Git-Url: https://osm.etsi.org/gitweb/?a=commitdiff_plain;h=refs%2Fchanges%2F83%2F6283%2F4;p=osm%2FFeatures.git New feature request: Network Slicing Change-Id: I9785aae402ed70c8fb3222d696145177db3881c5 --- diff --git a/Release6/NetworkSlicing.md b/Release6/NetworkSlicing.md new file mode 100644 index 0000000..562219e --- /dev/null +++ b/Release6/NetworkSlicing.md @@ -0,0 +1,41 @@ +# Manage network slices # + +## Proposer ## +- Diego López (Telefonica) +- Josep Martrat (ATOS) +- Ricard Vilalta (CTTC) + +## Type ## +**Feature** + +## Target MDG/TF ## +IM-NBI, SO/LCM, RO + +## Description ## +A Network Slice Instance (NSI) is defined in NGMN white paper as a set of network functions and the resources for these network functions +which are arranged and configured, forming a complete logical network, which meets certain characteristics in terms of available bandwidth, +latency, or QoS, among others described in 5QI (5G QoS Indicator). + +3GPP has proposed a data model in Release 15, which consists of a list of Network Slice Subnetworks instances (NSSI). Each NSSI contains a +set of network functions and the resources for these network functions that are arranged and configured to form a logical network. ETSI NFV +and 5G Americas are the entities that directly map a NSI with NSs saying basically that the sub-network instances are the same as NSs. + +The NSI contains NSSI, which in turn contain Network Functions (NFs) (e.g., belonging to Access Network (AN) and Core Network (CN)) as well +as all information relevant to the interconnections between these NFs like topology of connections and individual link requirements (e.g. +QoS attributes). The NSI is created by using a Network Slice Template (NST). + +ETSI ISG NFV is actually highlighting the relationship between NSs and Slices / SubnetSlices in ETSI NFV EVE 012. This is important since +the NFV MANO is familiar and supports the NS (and VNF) constructions. + +Our Slice Manager is an internal OSM component, which exposes an API aligned with 3GPP data model, and internally handles the slice +lifecycle. Usage of one level of network service recursiveness is expected, as well as relationship with PNF will be required. + +The feature thus encompases: +- Ofering a Network Slice Manager API +- Identifying in which parts of OSM the concept of service recursiveness is required. +- The lifecycle management of a slice including several NS that include VNFs and PNFs. + +## Demo or definition of done ## +- Define a Network Slice Template +- Instantiate a network slice with a couple of network services (including VNF and PNF). +- NSI deployment uses recursivity.