This object stores the near end and far end location of all inter terminal spans that were added to/deleted from the UMC system when umc1TrapTerminalSpanTableChange trap was emitted by the agent with umc1TerminalSpanTableChangeHistoryIndex sequence number. The umc1TerminalSpanTableChangeHistoryData contains multiple terminal span entries corresponding to the all inter terminal spans that were added to/deleted from the UMC system. Each entry in the umc1TerminalSpanTableChangeHistoryData consisting of action byte followed by packed terminal span record. For initial implementation the OCTET representation will be as follows: Octet[0] Version number (currently 0x01) For version 0x01 octet[1] Holds the number of spans in this history record. octets[2] through [11] hold the packed record for the 1st Terminal Span being reported and are defined as follows. Octet[2] Length of record. Octet[3] Action octet which specifies that the record attached after the action object has been added to/deleted from the umc1TerminalSpanTable. See DbActionType for valid values and meaning of this octet. Octet[4] Near End Terminal Id Octet[5] Near End Shelf Id Octet[6] Near End Slot Id Octet[7-8] Near End plug-in type Octet[9] Far End Terminal Id Octet[10] Far End Shelf Id Octet[11] Far End Slot Id octets[12] through [20] hold the packed record for the next Terminal and so forth, until up to octet[1] number of spans have been defined.