This module defines a MIB for Round Trip Time
(RTT) monitoring of a list of targets, using a 
variety of protocols.
        
The table structure overview is a follows (t: 
 indicates a table, at:  indicates an augmented 
 table, and it:  indicates table with the same 
 indices/control as parent table):
        
RTTMON MIB
|--- Application Group
|    |--- Application Identity
|    |--- Application Capabilities
|    |--- Application Reset
|    |t-- Supported RTT Types
|         |--- Truth Value
|    |t-- Supported Protocols
|         |--- Truth Value
|    |t-- Application Preconfigured
|         |--- Script Names
|         |--- File Paths
|    |--- Responder control
|    |t-- Control Protocol Authentication
|
|--- Overall Control Group
|    |t-- Master Definitions Table
|    |    |--- Global Configuration Definitions
|    |         |--- Config for a single RTT Life
|    |    |it- Echo Specific Configuration
|    |    |it- Echo Path Hop Address Configuration
|    |    |it- File I/O Specific Configuration
|    |    |it- Script Specific Configuration
|    |    |at- Schedule Configuration
|    |    |at- Reaction Specific Config
|    |    |at- Statistics Capture Configuration
|    |    |at- History Collection Configuration
|    |    |at- Monitoring Operational State
|    |    |at- Last RTT operation
|    |
|    |t-- Reaction Trigger Table
|         |at- Reaction Trigger Operational State
|
|--- Statistics Collection Group
|    |t-- Statistics Capture Table
|         |--- Captured Statistics
|              |--- Path Information
|              |--- Distribution Capture 
|              |--- Mean and Deviation Capture
|         |it- Statistics Collection Table
|    |it- Statistics Totals Table
|    |t-- HTTP Stats Table
|    |t-- Jitter Stats Table
|
|--- History Collection Group
|    |t-- History Collection Table
|         |-- Path Information
|         |-- Completion Information per operation
|
|--- Latest Operation Group
|    |t-- Latest HTTP Oper Table
|    |t-- Latest Jitter Oper Table
        
DEFINITIONS:
  conceptual RTT control row - 
          This is a row in the 'Overall Control 
          Group'.  This row is indexed via the 
          rttMonCtrlAdminIndex object.  This row 
          is spread across multiple real tables 
          in the 'Overall Control Group'.
  probe -
          This is the entity that executes via a 
          conceptual RTT control row and populates
          a conceptual statistics row and a 
          conceptual history row.
  Rtt operation -
          This is a single operation performed by
          a probe.  This operation can be a single
          Rtt attempt/completion or a group of Rtt
          attempts/completions that produce one
          operation table entry.
        
ARR Protocol Definition:
        
The format of the RTT Asymmetric Request/Responses 
 (ARR) protocol is as follows:
        
  The ARR Header (total of 12 octets): 
        
  4 octet -> eyecatcher: 'WxYz'
  1 octet -> version   : 0x01 - protocol version
  1 octet -> command   : 0x01 - logoff request
                         0x02 - echo request
                         0x03 - echo response
                         0x04 - software version request
                         0x05 - software version response
  2 octet -> sequence number (Network Byte Order)
  4 octet -> response data size (Network Byte Order)
        
  The ARR Data:
        
  n octets -> request/response data
                        : 'AB..ZAB..ZAB..' 
        
  For software version request/response the 
   protocol version octet will contain the version
   number of the responder.  Thus the sequence 
   number, etc will not be included.
        
  For snaLU0EchoAppl and snaLU2EchoAppl all character 
   fields will be in EBCDIC.
        
  The response data should be appended to the 
   origin request data.  This allows data  
   verification to check the data that flows in 
   both directions.  If the response data size is
   smaller than the request data size the original
   request data will be truncated.  
        
  An example would be:
    Request:        /       Response:
    'WxYz'          /       'WxYz'
    0x01            /       0x01
    0x02            /       0x03
    0x0001          /       0x0001
    0x00000008      /       0x00000008
    'ABCDEF'        /       'ABCDEFGH'
        
  NOTE: We requested 8 bytes in the response and 
        the response had 8 bytes.  The size of the
        request data has no correlation to the
        size of the response data.
        
NOTE:  For native RTT request/response (i.e. 
       ipIcmpecho) operations both the 'Header' 
       and 'Data' will be included.  Only the 
       'sequence number' in the Header will be 
       valid.
        
NOTE:  For non-connection oriented protocol the 
       initial RTT request/response operation will
       be preceded with an RTT request/response 
       operation to the target address to force 
       path exploration and to prove 
       connectivity.  The History collection table
       will contain these responses, but the 
       Statistics capture table will omit them to
       prevent skewed results.