From cb970c08ec05a749ba1490ea78d95b488584bd72 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Francisco-Javier=20Ram=C3=B3n=20Salguero?= Date: Mon, 4 Feb 2019 04:00:10 +0100 Subject: [PATCH] Instantiation in VIMs with more than one physnet MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Change-Id: I873a34765878b42f1f932a82945227d80d6512f0 Signed-off-by: Francisco-Javier Ramón Salguero --- ...tion in VIMs with more than one physnet.md | 45 +++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Release6/Instantiation in VIMs with more than one physnet.md diff --git a/Release6/Instantiation in VIMs with more than one physnet.md b/Release6/Instantiation in VIMs with more than one physnet.md new file mode 100644 index 0000000..7cf8264 --- /dev/null +++ b/Release6/Instantiation in VIMs with more than one physnet.md @@ -0,0 +1,45 @@ +# Instantiation in VIMs with more than one physnet + +## Proposer + +- Gerardo Garcia (Telefonica) +- Alfonso Tierno (Telefonica) +- Francisco Javier Ramon (Telefonica) + +## Type + +**Feature** + +## Target MDG/TF + +RO, CLI (optional) + +## Description + +In environments where some physical redundancy is required in terms of +networking, it is common the use of schemas with more than one switch upstream, +dividing the physical medium in groups of physical interfaces depending of the +upstream switch they are attached. In order to facilitate a sensible management +of these physical interfaces belonging to different "redundancy groups" by the +VIM, there is the possibility to classify them into the so-called 'physnets', +so that the VIM can leverage on that physical redundacy if needed. + +While this feature should not create a fundamental change in OSM operation or +the way its modelling works, and it is a fact that OSM can work with these +environments, it is also true that it works today with some limitations when +SDN Assist is in place. Thus, in a VIM with multiple physnets, only one can be +registered today when configuring a VIM target in OSM, leading to potential +underuse of resources (usually, by one half). Furthermore, when those physnets +obbey to some kind of physical active-active scheme, OSM cannot leverage on +this information to make NS/NSI deployments more reliable. + +This feature intends to solve the limitations described above. + +## Demo or definition of done + +With a VIM with multiple physnets, check that it is possible: + +- Register the VIM with all its physnets when defining a VIM target in OSM with +SDN Assist. +- Deploy a large NS requiring SDN Assist in such a VIM so that no interfaces +are excluded because of the physnet they belong. -- 2.25.1