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Essential SNMP, 2nd Edition
book

Essential SNMP, 2nd Edition

by Douglas Mauro, Kevin Schmidt
September 2005
Beginner
462 pages
12h 56m
English
O'Reilly Media, Inc.
Content preview from Essential SNMP, 2nd Edition

Error Responses

Table 7-2 shows the error responses that a device might return while executing the commands presented in this chapter. Consult your local documentation if these explanations do not cover your exact problem.

Table 7-2. Error responses

Server responded with

Explanation

Contained under subtree

snmpwalk returns this error if you have tried going down a MIB tree and are already at the end, or if the tree doesn't exist on the client.

No response arrived before timeout

Possible causes include an invalid community name, an agent that is not running, or an inaccessible node.

Agent reported error with variable

You are trying to set to an object with a datatype that is not the same as (or close to) the variable's specified type. For example, if the variable wants a DisplayString, you'll get this error if you send it an INTEGER. Read through the MIB to see what SYNTAX type the variable needs.

Missing instance value for...

When you are setting a value, you must supply the entire OID and instance. A scalar object will end with zero (0) and a tabular object will end with the instance number of the object in a table. Verify that the instance number you're using with snmpget is correct and retry your set.

Access is denied for variable

This may happen if you are trying to set a value on a read-only object. Review the MIB to see what the object's ACCESS setting is.

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Publisher Resources

ISBN: 0596008406Errata Page