OperationalStatus Enumeration
Specifies the operational state of a network interface.
Assembly: System (in System.dll)
| Member name | Description | |
|---|---|---|
| Dormant | The network interface is not in a condition to transmit data packets; it is waiting for an external event. | |
| Down | The network interface is unable to transmit data packets. | |
| LowerLayerDown | The network interface is unable to transmit data packets because it runs on top of one or more other interfaces, and at least one of these "lower layer" interfaces is down. | |
| NotPresent | The network interface is unable to transmit data packets because of a missing component, typically a hardware component. | |
| Testing | The network interface is running tests. | |
| Unknown | The network interface status is not known. | |
| Up | The network interface is up; it can transmit data packets. |
This enumeration defines valid values for the OperationalStatus property.
The following code example displays a summary for all interfaces on the local computer.
void ShowInterfaceSummary() { array<NetworkInterface^>^interfaces = NetworkInterface::GetAllNetworkInterfaces(); System::Collections::IEnumerator^ myEnum5 = interfaces->GetEnumerator(); while ( myEnum5->MoveNext() ) { NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum5->Current); Console::WriteLine( "Name: {0}", adapter->Name ); Console::WriteLine( adapter->Description ); Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) ); Console::WriteLine( " Interface type .......................... : {0}", adapter->NetworkInterfaceType ); Console::WriteLine( " Operational status ...................... : {0}", adapter->OperationalStatus ); String^ versions = ""; // Create a display string for the supported IP versions. if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) ) { versions = "IPv4"; } if ( adapter->Supports( NetworkInterfaceComponent::IPv6 ) ) { if ( versions->Length > 0 ) { versions = String::Concat( versions, " " ); } versions = String::Concat( versions, "IPv6" ); } Console::WriteLine( " IP version .............................. : {0}", versions ); Console::WriteLine(); } Console::WriteLine(); }
Available since 2.0