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SNMPWALK的死循环
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sky
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Oct 19, 2009, 10:38:58 PM
10/19/09
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SNMPWALK是常用的一个操作。最近遇见了一个问题就是因为SNMPWALK死循环导致的。到了表的末尾不返回NO SUCH
INSTANCE这类终结信号。不停的返回同一个叶子节点,导致任务停在了哪里。
SNMP的操作中这个WALK是是比较危险的,最好做一个叶子判断的好,虽然理论上EMS不需要去假设SNMP有很多问题,但是实际产品需要很好的
容错性,这点也是必要的。
一个稳定的系统,常常30%-50%的代码都是做容错。
sky
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Oct 24, 2009, 2:21:48 AM
10/24/09
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说道WALK,对于大一点的数据,WALK常常超时。这个也是做AGENT的人的一个苦恼。
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