Chapter 1:
Introduction
Page 1-6
Fast Network 100 MIB Reference Guide
1.6 USER FUNCTIONS
The SNMP primitives may be used to accomplish the following functions:
•
Obtain the FN100’s current value of certain parameters - the NMS uses the
GetRequest or GetNextRequest PDU, and the FN100 responds with a
GetResponse PDU. If the NMS issues a GetRequest for an unsupported
parameter, the FN100 sends a GetResponse with a noSuchName
ErrorStatus
1
. If the NMS issues a GetNextRequest for an unsupported
parameter, the FN100 skips to the next object.
•
Change the FN100’s value of certain parameters - the NMS uses the
SetRequest PDU, and the FN100 responds with a GetResponse PDU. The
FN100 will change both its current value and its local default to be used when
the FN100 reboots, unless noted otherwise.
•
Obtain the current value of certain parameters and simultaneously change the
value of other parameters - the NMS uses the SetRequest PDU, and the
FN100 responds with a GetResponse PDU. For the parameters which are
being obtained rather than changed, the NMS must use the ASN.1 NULL
value with the SetRequest PDU.
•
Provide notification of significant events - the FN100 uses the Trap PDU.
The FN100 implements two non-standard features with respect to the SNMP
SetRequest:
•
The variable bindings within a SetRequest are sometimes processed
sequentially rather than simultaneously. For example, if a SetRequest
contains two parameters with an incorrect value specified for the second
parameter, the FN100 returns a badValue error to the NMS; however, the
FN100 may have updated its value for the first parameter.
1.
If implementing the parameter is required, it might seem more reasonable to
return a GetResponse with no error and the ASN.1 NULL value as the
parameter’s value; however, leading authorities such as Marshall T. Rose (author
of
The Simple Book
) suggest that noSuchName be returned, because many
existing SNMP management stations do not handle NULL values correctly.
Summary of Contents for FN100
Page 1: ...FAST NETWORK 100 MIB REFERENCE GUIDE 9031869 01...
Page 2: ......
Page 44: ...Chapter 3 Ethernet MIB Page 3 6 Fast Network 100 MIB Reference Guide...
Page 56: ...Chapter 4 Bridge MIB Page 4 12 Fast Network 100 MIB Reference Guide...
Page 106: ...Chapter 6 Cabletron MIB Page 6 40 Fast Network 100 MIB Reference Guide...
