From: garciadeblas Date: Tue, 8 Nov 2016 18:14:37 +0000 (+0100) Subject: euag_alternatives_for_underlay_network_management_from_OSM.md X-Git-Url: https://osm.etsi.org/gitweb/?a=commitdiff_plain;h=refs%2Fchanges%2F28%2F628%2F3;p=osm%2FFeatures.git euag_alternatives_for_underlay_network_management_from_OSM.md Change-Id: I5d1c6bbec83df5196c142034aabaab3e29d819b5 --- diff --git a/Release2/euag_alternatives_for_underlay_network_management_from_OSM.md b/Release2/euag_alternatives_for_underlay_network_management_from_OSM.md new file mode 100644 index 0000000..3cca783 --- /dev/null +++ b/Release2/euag_alternatives_for_underlay_network_management_from_OSM.md @@ -0,0 +1,37 @@ +# Alternatives for underlay network management from OSM # + +## Proposer ## +**EUAG** + +## Type ## +**Feature** + +## Target MDG/TF ## +RO, UI + +## Description ## +Most common VIMs (Openstack, VMware, AWS) do not provide management of native L2 +underlay connections (E-Line, E-LAN) suitable for EPA. In the case of Openstack, +there are proprietary solutions based on neutron ML2 plugins for the +connectivity of SR-IOV interfaces. However, those solutions are not suitable for +all use cases: + +* It is not possible to connect PT (pass-through) NIC interfaces (there are no +neutron ports associated to PT interfaces). +* It is also impossible to connect multitenant VNFs (using VLAN tags per tenant) +with single tenant VNFs, where the VLAN tag must be automatically removed/added +by the network. + +The proposal is to enable OSM to manage underlay networks directly through an +SDN controller (SDNC) whenever that feature is not provided by the VIM. In those +cases, the VIM would only in charge of the creation of VM instances and the +creation of overlay networks, while the SDNC, governed by OSM (the RO, in this +case), would be in charge of the creation and deletion of underlay networks. + +It is devised that OSM should get from the VIM the physical allocation of the +interfaces (SRIOV, PT) once the VM is deployed, and it will command the SDNC to +connect these interfaces in E-Line or E-LAN networks. Common SDNCs that are +expected to be supported should be ODL and ONOS. + +## Demo or definition of done ## +N/A