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# Quick Start: Add a network and associate it with an existing server

This quick start describes how to add a network to the appliance and enable existing servers to access that network.

Prerequisites

- Required privileges: Infrastructure administrator or Network administrator for adding the network.

- Required privileges: Infrastructure administrator or Server administrator for changing the configurations of the server profiles.

- The enclosures and server hardware are added to the appliance.

- All data center switch ports that connect to the Virtual Connect interconnects are configured as described in Data center switch port requirements.

## Adding a network and associating it with an existing server

When you add a network to the appliance, you might need to make configuration changes to the following resources:

| NOTE: You can create active/active configurations without having to create two networks with the same VLAN ID. See Quick Start: Add an active/active network configuration for single or multiple logical interconnect groups for more information.

Resource | Task | Description
--- | --- | ---
Networks | Add the network. | Adding a network does not require that you take resources offline.
Logical Interconnect Groups | Add the network to an uplink set or internal networks. | You can either add the network to an existing uplink set or create an uplink set for the network. Changing the configuration of an uplink set does not require that you take resources offline. Configuration changes made to a logical interconnect group are not automatically propagated to the member logical interconnects. However, by changing the logical interconnect group, you can update each logical interconnect with a single action. For more information, see Logical Interconnect Groups, or see the REST API scripting help for logical interconnects and the REST API for the `uplink-sets` resource.
Logical Interconnects (one or more) | Do one of the following: Add the network to an uplink set or internal networks. Update the logical interconnect from the logical interconnect group. | Changing the configuration of an uplink set does not require that you take resources offline. Configuration changes made to a logical interconnect group are not automatically propagated to the member logical interconnects. To update a logical interconnect with changes made to its logical interconnect group, do one of the following: Select Logical Interconnects→Actions→Update from group. Use the REST APIs to reapply the logical interconnect group. When adding a network, updating a logical interconnect from its group does not require that you take resources offline. You can make changes to a logical interconnect without also changing the logical interconnect group. In this case, you add the network to an uplink set on the logical interconnect. However, the appliance labels the logical interconnect as being inconsistent with its group. For more information, see Logical Interconnects, or see the REST API scripting help for logical interconnects.
Network Sets | (Optional) Add the network to a network set. | Applies to Ethernet networks only. Adding a network to a network set does not require that you take resources offline. You do not need to update server profiles that have connections to the network set. For more information about network sets, see Network Sets, or see the REST API scripting help for networks and network sets.
Server Profiles and Server Hardware | Power off the server before you edit the server profile. Edit the server profile to add a connection to the network. Power on the server after you apply the server profile. | For a server to connect to the network, the server profile for the server hardware must include a connection to either the network or a network set that includes the network. If you add the network to a network set, server profiles that have connections to the network set automatically have access to the added network. You do not have to edit these server profiles. If the network is not added to a network set, you must add a connection to the network in the server profiles that you want to connect to that network. Power off the server hardware before adding the connection to a server profile. For more information about server profiles, see Server Profiles, or see the REST API scripting help for server profiles.

See also

- Networks

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