<PackageReference Include="System.ServiceModel.Http" Version="6.0.0-preview1.23060.3" />

System.ServiceModel.Channels.WebSocketDefaults

static class WebSocketDefaults
public const int BufferSize = 16384

public const bool CreateNotificationOnConnection = false

public static readonly TimeSpan DefaultKeepAliveInterval

public const string DefaultKeepAliveIntervalString = "00:00:00"

public const int MinReceiveBufferSize = 256

public const int MinSendBufferSize = 16

public const string SubProtocol = null

public const WebSocketTransportUsage TransportUsage = 2

public const string WebSocketConnectionHeaderValue = "Upgrade"

public const string WebSocketUpgradeHeaderValue = "websocket"