SNMP MIB Visualizer recommendations?

Question

Are there any free visualization tools for MIBs? I've been assigned some SNMP trap normalization/enrichment work and been given Cisco ONS 15454s to start with. The MIBs seem more complex than others I have seen. Lots of object cross-references, including some to objects that are defined in other MIBs and exported. A quick example of trying to trace down the port number of an alarm:

Alarm definition:

Cerent454AlarmEntry ::= SEQUENCE {
    cerent454AlarmIndex          INTEGER,
    cerent454AlarmObjectType     Cerent454EntityClass,
    cerent454AlarmSlotNumber     INTEGER,
    cerent454AlarmPortNumber     CerentPortNumber,
    cerent454AlarmLineNumber     INTEGER,
    cerent454AlarmObjectIndex    INTEGER,
    cerent454AlarmType           Cerent454AlarmType,
    cerent454AlarmState          CerentNotificationClass,
    cerent454AlarmTimeStamp      TimeStamp,
    cerent454AlarmObjectName     DisplayString,
    cerent454AlarmAdditionalInfo DisplayString
}

CerentPortNumber references from the same file (CERENT-454.mib):

IMPORTS
    (...)
    CerentPortNumber
        FROM CERENT-TC

(...)
cerent454AlarmPortNumber OBJECT-TYPE
    SYNTAX      CerentPortNumber
    ACCESS      read-only
    STATUS      mandatory
    DESCRIPTION 
        "This will indicate what is the port
         of the object which raised this alarm."
    ::= { cerent454AlarmEntry 40 }

The actual syntax for CerentPortNumber, from CERENT-TC.mib:

CerentPortNumber ::=
      INTEGER
      {        unknown   (1),
               port0     (5),
               port1    (10),
               port2    (20),
               (...)
               port62  (620),
               port63  (630),
               port64  (640),
               portAll (10240)
             }

Maybe this isn't as complex as it feels, but this is just one small example. It feels like there should be a GUI-based "explorer" type app that would allow me to see these references easily without a lot of back and forth between files and locations in files. Any recommendations?

Answer 1

The one I used to use was MIB Browser.

But looking for MIB viewer on google gives you lots of other solutions.

Answer 2

I expect you can use Mgsoft-MIB Browser trail version for some extent.

Regards Haranadh

Answer 3

I use iReasoning's MIB Browser.