The fifth case is analysis the callloss, analysis the value of the various reasons for the failure, find out which is user behavior reason and which is the network problems.
第五个例子是呼损分析，分析各个失败的原因值，找出用户行为、网络问题等。
2
Though we've never had a catastrophic loss such as that, Gibbs and I did have a close call shortly before we decided to simplify.