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OpenStack networking option

asked 2018-11-11 08:57:29 -0500

najeh gravatar image

updated 2018-11-11 08:58:39 -0500

What is the best network option to use in a manual installation of openstack:

Networking Option 1: Provider networks

Networking Option 2: Self-service networks

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answered 2018-11-11 09:20:18 -0500

yasin lachiny gravatar image

updated 2018-11-11 09:22:10 -0500

it is simpler to use network option 1

if you want a local network you can use option2

if you have a lot of traffic use option2

in option1 compute must have 2 interfaces beacause compute connect to internet directly but in option 2 compute first connect to router in controller and after that connect to internet

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najeh gravatar imagenajeh ( 2018-11-11 14:24:59 -0500 )edit

answered 2018-11-14 07:46:25 -0500

updated 2018-11-14 07:48:09 -0500

Although Option 1 is the least complex networking option, since all L3 (and above) services are outside the Openstack enviroment, Option 2 gives you the most flexibility since it augments Option 1 and allows both self-service and provider network creation. See the note given in the: (Openstack documentation (Queens)), which says "Option 2 also supports attaching instances to provider networks".

In terms of manually installation steps, there is not much difference in complexity in the two options. So I would recommend going for Option 2.

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answered 2018-11-14 08:07:32 -0500

updated 2018-11-14 23:00:57 -0500

Network option 1(Provider Network) The Provider networks are used as an external network for OpenStack.Floating IP was taken from the external network, it was used to access the external network. The flat networks are based on this, Typical external network. The scope is all tenants. Can only be created by administrators. Tenants connect their router for external access. Typically a ‘flat’ or ‘vlan’ network. provider networking" does not allow users to create new virtual networking components and allow them to use only the ones that are predefined by the provider. you cannot define your network topology.

Network option 2(Self-service network) By choosing this, the tenant network, the subnets and routers can be created internally and you can define your network topology in OpenStack

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Asked: 2018-11-11 08:57:29 -0500

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Last updated: Nov 14 '18