Re: Problem on return value of netsnmp python bindings

On 17 May 2012 03:16, 胡小根 <[email protected]> wrote:
> I am now using net-snmp python bindings. There comes a problem that the
> function netsnmp.snmpwalk() returns only oid values, but do not return index.

No - the function snmpwalk returns a set of 4-tuples:
   var.tag  (the object OID)
   var.iid   (the index)
   var.val  (the value)
   var.type (the type)

Have a look at 'python/netsnmp/tests/test.py' for examples.


> For example, if I want to poll ifDescr(1.3.6.1.2.1.2.2.1.2),
> netsnmp.snmpwalk() only return a tuple containing values but not ifIndex.

Try the following:

    import netsnmp

    vars =  netsnmp.VarList( netsnmp.Varbind('ifDescr'))
    res  = netsnmp.snmpwalk( vars, Version = 1, DestHost =
'localhost', Community = 'public' )
    for var in vars:
        print "ifIndex value = ", var.iid, "\tifDescr value =", var.val


> I'm wondering whether I didn't get netsnmp work well or it's the bindings' problem.

It's not the bindings' problem.

Dave

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