Device View
SNMP
The MTM400 Simple Network Management Protocol (SNMP) agent is a software process that responds to queries using the SNMP to provide status and statistics about the MTM400. This enables management applications to be developed that can access MTM400 units remotely across a network using SNMP.
Each of the events available from the MTM400 is kept in a database described by a Management Information Base (MIB). The various values that can be retrieved from the MIB are called MIB variables. These variables are defined in the MIB for the MTM400. Each MIB variable is named by an Object Identifier (OID).
The MTM400 MIB is documented in the MTM400 MPEG Transport Stream
Monitor Programmer Manual, Tektronix part number
The MTM400 MIB definition files can be downloaded from the MTM400 using
http://address/mib/adsys.mib and http://address/mib/admpeg.mib.
Communities
An SNMP Community String is like a password. It is sent along with each SNMP request and allows (or denies) access to the MTM400. Most agents accept a default password of “public”. Alternative community strings can also be used to enhance security. The MTM400 uses the standard community string “public”. However, it allows a secondary community string to accommodate older systems that use different values and cannot be changed. Even if these values are changed, the “public” community string can still be used. Read and Write community strings can be set in the Network Settings dialog (see page
SNMP Traps
An SNMP Trap is an unsolicited message from an MTM400 to an SNMP agent that an event has occurred. Traps provide an immediate notification for an event that might only be discovered during occasional polling using normal SNMP techniques.
SNMP traps have a default community string of “public”. An alternative community string can be assigned in the Network Settings dialog (see page
MTM400 MPEG Transport Stream Monitor User Manual |