The state of this community entry. Enable (1) defines an entry
that is valid. Disable (2) defines an entry that is valid but
not enabled. Delete (3) removes an entry from the table.
Invalid (4) defines an entry that is no longer valid (e.g., an
entry that was deleted) and should be ignored. An attempt to set
a value of invalid (4) causes the agent to return SNMP_BADVALUE.