When you bring up the Linux image on a LPAR, you may find that the network service does not behave as expected; in spite of allocating the IP address, the network can be unreachable.

在LPAR上启动Linux映像时，您可能会发现网络服务不能按预期工作；尽管分配了IP地址，网络仍然不能访问。

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This works for smaller clusters, but it can take a long time to return for a larger cluster where nodes might be unreachable for various reasons, such as network issues.

这对于小型集群来说可以正常工作，但是对于大型集群来说，可能会需要花费很长一段时间来返回，在大型集群中，可能有些节点会由于各种原因而变得不可访问，例如网络问题。

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Starting with Firefox 3, this property is now also updated when the browser automatically detects that the network is unreachable.

从Firefox 3开始，当浏览器自动检测到网络不可用时，这个属性也会更新。

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About 70 percent of ZDNet's Internet content, including ZD Network News and ZDNet Product Reviews, was unreachable to users for two hours during the attack on its ZDNet.com address.

CNN: hacking