如果网络接口失效，需要用替代路径进行路由。
If a network interface goes down, traffic needs to be routed over an alternate path.
可以用没有ip心跳来识别逻辑接口失效。
No IP heartbeat is available to identify logical interface failures.
AT M接口失效可以是物理的或者逻辑的。
当接口失效时，利用此接口的所有连接也都失效。
When the interface fails, all connections using the interface also fail.
就像a tm那样，当接口失效时，利用此接口的所有连接也都失效。
As with ATM, when the interface fails, all connections using the interface also fail.
Distributed map类是应用程序所使用的编程接口，该类允许应用程序从缓存实例获得对象和将对象放置到其中，并可以使其失效。
The DistributedMap interface is the programming interface that your applications work with, enabling the application to get and put objects into the cache instance, as well as invalidate them.
当接口在进行位错误测试或者网络设施没有正确配置时就会出现这种失效。
This failure occurs when the interface is undergoing bit-error testing or the network facility is not properly configured.
当接口在进行位错误测试或者网络设施没有正确配置时就会出现这种失效。
This failure occurs when the interface is undergoing bit-error testing or the network facility is not properly configured.
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