Hi Sridhar [+tech discuss list]
From my knowledge, very few NFVi installers know how to configure the TOR(s) and instead just assume that some admin will go and configure the TORs in a way that is compatible with the installer’s own networking blueprint – this is one of the main areas were human errors occur during installation as there can be hundreds of cables to wire manually and as many ports to configure on the TORs. I know at least one (commercial) that does it but it only supports very specific model of TOR and very specific encaps/overlays. My comment to engage the installer team was more related to the wiring design between TOR(s) and servers that make up an openstack platform, which are of predominant importance when it comes to HW configuration. Any openstack installer will have to create a networking blueprint that will dictate how many TORs and how many physical interfaces are needed and what kind of traffic each will carry. Even with simpler VLAN deployment, there are multiple openstack networks to map on physical interfaces and/or VLANs with possibility of VLAN trunking and HA. It is clearly recommended to define the RI HW configuration with proper consultation with the installer team (this includes storage configuration as well as I mentioned in the wiki). As I did not follow on CNTT meetings, I’m not sure which OPNFV team is in charge of installing openstack on the RI and what kind of installer it is. Thanks Alec From: "Rao, Sridhar" <sridhar....@spirent.com> Date: Wednesday, November 13, 2019 at 6:51 PM To: "Alec Hothan (ahothan)" <ahot...@cisco.com> Subject: RI Lab Infra. Discussion Hello Alec, I was reading your points in https://wiki.opnfv.org/display/INF/CNTT+RI+Lab+Infrastructure+Discussion I fully agree with importance of TOR configurations – may I say, underlay network configuration. You mention in multiple places, that this should be done by Installers. Can you please point me to an installer that can do this today. It would be very helpful. Today, in Intel Pods – the underlay network (the type of networks, the IP plan, VLANs and switch configuration) -Ex: Pod 10 (https://wiki.opnfv.org/display/pharos/Intel+POD10) – is setup by Intel team itself. Installer comes into picture only after this is set. I have not seen any installers which can also perform thoses step that Intel team is doing. Cheers, Sridhar
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