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# Networks screen details

If no resources are listed, you must add a resource. See Create networks.

The details of your networks and any alerts associated with them appear on the Networks screen.

- General

- Create or Edit a network screen details

## General

For additional details, see Create or Edit a network screen details.

Screen component | Description
--- | ---
Type | Specifies the type of network: `Ethernet`, `Fibre Channel`, or `FCoE` For Fibre Channel, specifies the fabric type: `Fabric attach` or `Direct attach`
VLAN (Ethernet or FCoE networks only) | The VLAN ID for the Tagged Ethernet or FCoE network. For tunnel or untagged Ethernet networks, `Tunnel`or `Untagged` displays. For more information, see Ethernet network or FCoE network.
Associated with subnet ID (Ethernet networks only) | Displays the associated subnet and links to the IPv4 Subnets and Address Ranges panel of the Settings screen.
Purpose (Ethernet networks only) | A description to attach to a network to help categorize the purpose of the network: `General`, `Management`, `VM Migration`, `iSCSI`, and `Fault Tolerance`. The description does not affect the behavior of the network.
Associated with SAN | The managed fabric attach SANs associated with this network. The SAN names link to the details of the SAN.
SAN manager | The name of the SAN manager associated with this network. The name links to the SAN Manager screen where you can view additional details and edit information.
Preferred bandwidth | The preferred bandwidth for the network, in Gb/s, when the network is configured on a port in a server profile
Maximum bandwidth | The setting for the maximum bandwidth for a connection to this network, in Gb/s, when this network is configured on a port in a server profile.
Smart link (Ethernet networks only) | Indicates whether Smart link is enabled for the network: `Yes` or `No` Smart Link causes the operating system to detect a failure and direct traffic to an alternate path.
| NOTE: Smart link must be selected for active/active configurations.
Private network (Ethernet networks only) | Indicates whether Private network is enabled for the network: `Yes` or `No` The server ports in a private network cannot communicate with each other within the logical interconnect. All server packets are sent through the logical interconnect and out the uplink ports.
Uplink Set | Specifies the uplink set for the network and provides a hyperlink to the Logical Interconnects screen for additional details and editing of the uplink set.
Login redistribution (Fibre Channel, Fabric Attach networks only) | The Login redistribution type: `Auto` or `Manual`
Link stability interval (Fibre Channel, Fabric Attach networks only) | The time interval, in seconds, before Login redistribution occurs (when it is set to `Auto`)
Used by | Specifies the server profiles associated with the network, and provides a hyperlink to the Server Profiles screen where you can view additional details and edit the server profile. Specifies the storage systems associated with the network, and provides a hyperlink to the Storage Systems screen where you can view additional details and edit the ports.
Member of (Ethernet networks only) | Specifies the name of the network set to which the network belongs (if it belongs to only one), or specifies the total number of network sets to which it belongs. It also provides a hyperlink to the Network Sets screen where you can view additional details and edit the network sets.

## Create or Edit a network screen details

Screen component | Description
--- | ---
Name | A unique name for the network. Follow best practices for network naming conventions, if you have them.
| NOTE: If you are creating multiple tagged networks at the same time (creating networks in bulk), this name is automatically appended with an underscore (_) and the `VLAN ID`. For example, `Dev_101`.
Data type: | A maximum of 255 alphanumeric characters, spaces, and special characters with no leading spaces
Examples: | `esx mgmt` `vm601` `SAN A` `SAN_B` `Dev_101`
Type (Create only) | Specifies the type of network you are creating.
`Ethernet` | An Ethernet network carries data traffic.
`Fibre Channel` | A Fibre Channel network carries storage traffic.
`FCoE` | An FCoE network carries storage traffic using a dedicated Ethernet VLAN.
VLAN (Ethernet networks only) (Create only) | The type of Ethernet network you are creating:
`Tagged` | A tagged Ethernet network contains multiple networks on a single uplink set which allows you to share uplinks with those networks. When editing a tagged network, the VLAN ID is shown.
`Untagged` | An untagged Ethernet network is a single network with a dedicated set of uplink ports used to pass traffic without VLAN tags.
`Tunnel` | A tunnel network is a single network with a dedicated set of uplink ports used to pass a group of VLANs without changing the VLAN tags.
| NOTE: These networks can be used in internal networks or in uplink sets.
VLAN ID (Tagged Ethernet or FCoE networks only) (Create only) | The Virtual LAN identification number assigned to a network, entered as a single value For tagged Ethernet networks, you can enter a combination of values or ranges to add networks in bulk, for example: `113, 114, 200-300`. When creating multiple tagged networks, the VLAN ID is appended to the `Name`. For example, if you entered `Dev` for the Name and `100–102` for the VLAN ID, the system creates networks `Dev_100`, `Dev_101`, and `Dev_102`. If you do not know which VLAN IDs have been assigned, contact your network administrator.
| NOTE: You cannot add FCoE networks in bulk.
Data type: | An integer greater than or equal to 2 and less than or equal to 4094
Associate with subnet ID (Ethernet networks only) | For both tagged and untagged Ethernet networks, lists all subnets not currently associated with any VLAN. If the selected VLAN ID is already used by another network and there is an associated subnet, it lists only the configured subnet. Subnet IDs cannot be assigned when a valid VLAN ID is not specified or when creating networks in bulk. When editing a network with an associated subnet, if the associated subnet is changed, validation will fail if any IP addresses are in use in the current subnet.
Purpose (Ethernet networks only) | A description to attach to a network to help categorize the purpose of the network: `General`, `Management`, `VM Migration`, `iSCSI`, and `Fault Tolerance`. The description does not affect the behavior of the network.
Fabric type (Fibre Channel networks only) (Create only) | The type of Fibre Channel connection the network uses to attach to external storage systems.
`Fabric attach` | Connects to external storage through SAN switches.
`Direct attach` | Connects directly to a 3PAR Storage system.
For more information about Fibre Channel connection types, see About Fibre Channel networks.
Associate with SAN (Fabric-attach and FCoE) | The managed SAN to associate with this network. If selected, automatic zoning occurs as well as end-to-end connectivity verification. Automatic zoning connects a server profile on this network to its storage. For more information about zoning, see About SAN zoning. If you edit the network and change the association to a different SAN, you must confirm the change.
Preferred bandwidth | The preferred bandwidth, in Gb/s, for the network when the preferred bandwidth is configured on a port in a server profile. You can override this setting in a server profile. This value cannot be greater than the maximum bandwidth. For Flex-10 or Flex-20 environments, up to four connections can share a single 10 or 20 Gb link. For Fibre Channel networks, this value is not applicable. The connection speed will default to `Auto`.
Data type: | A number between 0.1 Gb/s and 20 Gb/s; a decimal point is not required
Default value: | `2.5` If you create multiple networks in one session, the default value is set to the value used for the last network you created. For example, if you specify `5` for the preferred bandwidth, the default value for this session is `5`.
Examples: | `3.5` `5`
Maximum bandwidth | The maximum bandwidth for a connection to the selected network, in Gb/s, when the selected network is configured on a port in a server profile. The maximum bandwidth defines the upper limit for the requested bandwidth allocation setting when the network is associated with a server profile. This value cannot be less than the preferred bandwidth. The maximum bandwidth for a single physical port cannot exceed 10 Gb for 10-Gb adapters or 20 Gb for 20-Gb adapters. For Fibre Channel networks, the maximum bandwidth is not applicable.
Data type: | A number between 0.1 Gb/s and 20 Gb/s; a decimal point is not required If you create multiple networks in the same session, the default value is set to the value used for the last network that you created. For example, if you set a value of 9.5 for the maximum bandwidth, the default for this session is 9.5.
Examples: | `8.5` `9`
Smart link (Ethernet networks only) | Smart Link causes the operating system to detect a failure and direct traffic to an alternate path.
| NOTE: Smart link must be selected for active/active configurations.
Private network | This option provides additional networking security. When selected, all server ports connected to the network cannot communicate with each other within the logical interconnect. All server packets are sent through the logical interconnect and out the uplink ports.
Login redistribution (Fibre Channel, fabric-attach networks only) | Used for login balancing when logins are not distributed evenly over the Fibre Channel links (for example, when an uplink that was down becomes available).
`Auto` | Login redistribution is initiated automatically when the link stability time expires.
`Manual` | Login redistribution must be initiated manually.
Link stability interval (Fibre Channel, fabric-attach networks only) | This feature is enabled when Login redistribution is set to `Auto`. The time in seconds that the module waits before reconnecting to a link that was previously offline (login redistribution). This interval prevents connection loss due to reconnecting to a link that is unstable (going online and offline repeatedly). For Fibre Channel connections, this value is not applicable.
Data type: | A number from 1 to 1800, inclusive
Default value: | `30` seconds

See also

- About networks

- About Fibre Channel networks

- About Fibre Channel over Ethernet (FCoE) networks

- About Ethernet networks

- Create networks

- Labels screen details

- Map view screen details

- Activity screen details

- Standard UI buttons

- Networks

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