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华为交换机环检测问题

2008-07-13 12:45:49| 分类：网管 | 标签： |举报 |字号大中小订阅

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故障现象：华为2126交换机所有业务中断。

检测过程：在交换机中使用“display logbuffer”后显示其中一个VLAN在上行口有环。在上级交换机中去除此VLAN后2126恢复正常，在上行端口使用“undo loopback-detection enable”去除环检测后，上级交换机再加上此VLAN，2126业务也不会中断。

注：交换机上行端口应去除环检测，否则一但检测到有环，则会对端口进行阻断，从而会中断所有业务。

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