User's Manual

7. DIAGNOSIS
7 Diagnosis
7.1 Management Information Database
The Management Information Database (MIB) describes the managed objects that can be retrieved via
SNMP Version 1 on UDP port 161. Make sure to use the correct IP address according to your loaded
configuration.
NOTE
In your preferred SNMP client, make sure to choose SNMPv1 and disable all the other versions of the
SNMP protocol.
The MIB files listed below can be loaded into any SNMPv1-compliant SNMP client. The MIB files contain
the following diagnostic information about the switch status:
TTE-SMC2-MIB: Contains information about firmware, configuration, temperatures, voltages, and built-
in self-tests (BISTs) (see Section 7.2 on the current page).
TTE-SWE-TT-MIB: Contains all relevant status information and error counters of the switch engine. For
details about the switch engine, see the TTEthernet Switch Interface Control Document [9].
TTE-ES-1-8-MIB: Contains all relevant status information and error counters of the switch end-system.
For more detailed information about the switch end-system, see the Pegasus End System Core
Interface Control Document [10].
TT-MIB: Contains definitions.
7.2 Built-In Self-Tests (BISTs)
The TTE-Switch A664 Lab v2.0 implements three kinds of BISTs, power-up (PBISTs), continuous (CBISTs),
and initiated (IBISTs).
The PBISTs are executed at startup only.
The CBISTs are executed continuously, i.e., when Grnd-Mode is ON and when Grnd-Mode is OFF.
The IBISTs are only executed when initiated manually.
The following BIST types determine how the results of a BIST are interpreted:
bitvector (BITVEC)
counter (COUNT)
CRC (CRC)
temperature (TEMP)
voltage (VOLT)
The BIST results, which can be retrieved via SNMPv1, are stored in non-volatile memory for ad-hoc or
later analysis.
The timestamp of the BIST result is reported in seconds. This timestamp is absolute. It increases while
the switch is operational and not in SHOP mode.
A BIST result consists of the following items:
An index
The latest value measured
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Document Number:
D-A664Lab-G-05-001