Re: How do you handle ghost resources?

Anil Rijsinghani <anil@levers.enet.dec.com> Sat, 23 January 1993 15:35 UTC

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From: Anil Rijsinghani <anil@levers.enet.dec.com>
To: dsi4!rem@uunet.uu.net
Cc: fddi-mib@cs.utk.edu
Apparently-To: fddi-mib@cs.utk.edu, dsi4!rem@uunet.uu.net
Subject: Re: How do you handle ghost resources?

    Ron,

> 2.  Let SNMP return "no such name" for any variable not physically
>     present.  This would destroy the usefulness of the (powerful) 
>     get-next operator.

    I think this is the preferred way of reporting ghosts.  And no,
    you would not have destroyed the usefulness of the get-next
    operator.  NMS's are supposed to deal with missing variables
    (this could happen routinely in the case that a community
    name was not allowed access to certain variables).  In fact
    this is one of the advantages of GET-NEXT; it returns the
    next available object.  noSuch is returned only when a GET
    is performed on an unavailable object.

    As long as you implement all objects when the MAC *is* present,
    then you would be compliant to the MIB (in my opinion).

    Anil