Major and minor error codes and SNMP value types

This section describes the possible major and minor error codes and variable value types that can be returned in a NetView® SNMP response or trap.

• The major error code can have one of the following values:

  Value	Major error code
  0	No error detected
  1	SNMP agent reported error
  2	Internally detected error

• The minor error code can have one of the following values when the major error code indicates that an SNMP agent detected an error (1):

  Value	SNMP Agent detected minor error code
  0	No error
  1	Too big
  2	No such name
  3	Incorrect value
  4	Read only
  5	General error

• The minor error code can have one of the following values when the major error code indicates that an internal error was detected (2):

  Value	Internal minor error code
  0	No error
  1	Protocol error
  2	Out of memory
  3	No response–all retries failed
  4	Some I/O error occurred
  5	Illegal request
  6	Unknown host specified
  7	Unknown MIB variable
  8	No such filter
  9	Too many variables specified

• If the major error code indicates that an SNMP agent detected the error (1), the error index indicates the position of the first variable in error.
• The variable value type is one of the following, as specified in RFC 1155 (Structure and Identification of Management Information for TCP/IP-Based Internets) and RFC 1156 (Management Information Base for Network Management of TCP/IP-Based Internets):

  Value	Value type
  0	Text representation
  1	Number (integer, signed)
  2	Binary data string
  3	Object identifier
  4	Empty (no value)
  5	IP address
  6	Counter (unsigned)
  7	Gauge (unsigned)
  8	Time ticks (1/100ths seconds)
  9	Display string

  Note: The binary data string is displayed in the NetView program as a contiguous string of hexadecimal characters (for example, X'0123' is displayed as 0123).