Azure服务总线配对命名空间-模拟故障转移

我正在使用azure服务总线配对的命名空间，需要能够模拟故障转移到辅助命名空间。我为主命名空间输入了一个错误的连接字符串，并看到它失败了，并将消息发送到辅助命名空间。这似乎不再奏效了。我无法通过azure管理门户或其他任何地方找到使名称空间脱机的方法。有人知道怎么做吗?

这是我的代码供参考

var pairedNamespaceConfiguration = this.pairedNamespaceConfigurationDictionary[configurationKey];
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(pairedNamespaceConfiguration.PrimaryNamespace.ConnectionString);
MessagingFactory secondaryMessagingFactory = MessagingFactory.CreateFromConnectionString(pairedNamespaceConfiguration.SecondaryNamespace.ConnectionString);
NamespaceManager secondaryNamespaceManager = NamespaceManager.CreateFromConnectionString(pairedNamespaceConfiguration.SecondaryNamespace.ConnectionString);
SendAvailabilityPairedNamespaceOptions sendAvailabilityOptions = new SendAvailabilityPairedNamespaceOptions(secondaryNamespaceManager, secondaryMessagingFactory, pairedNamespaceConfiguration.BacklogQueueCount, TimeSpan.FromSeconds(pairedNamespaceConfiguration.FailoverIntervalSeconds), false);
factory.PairNamespaceAsync(sendAvailabilityOptions).Wait();
MessageSender messageSender = factory.CreateMessageSender(pairedNamespaceConfiguration.PathName);
string messageContent = JsonConvert.SerializeObject(message);
using(BrokeredMessage brokeredMessage = new BrokeredMessage(messageContent))
{
    messageSender.Send(brokeredMessage);
}