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E. SNMP MIB Objects
3160-A2-GB21-90 February 2001
E-21
General Port Table – “rs232PortType” Object (rs232PortEntry 2)
This object is used to identify the port’s hardware type. Only the following values
are supported by the DSU/CSU.
rs232(2) – Used to identify the MODEM, AUX, and COM ports.
rs422(3) – Used to identify synchronous data ports that are configured as
EIA-530A or RS-449.
V35(5) – Used to identify synchronous data ports that are configured as V.35.
General Port Table – “rs232PortInSigNumber” Object (rs232PortEntry 3)
This object contains the number of input signals contained in the input signal table.
This is the number of signals that can be detected. This number is 2 for the
synchronous data ports and 0 for the MODEM, AUX, and COM ports.
General Port Table – “rs232PortOutSigNumber” Object (rs232PortEntry 4)
This object contains the number of output signals contained in the output signal
table. This is the number of signals that can be asserted. This number is 2 for the
synchronous data ports and 0 for the MODEM, AUX, and COM ports.
General Port Table – “rs232PortInSpeed” Object (rs232PortEntry 5)
This object contains the port’s input speed in bits per second. For the DSU/CSU,
the rs232PortInSpeed object has the same value as the rs232PortOutSpeed
object. The input speed of a synchronous data port is determined by the channel
configuration and cannot be changed through this object. Thus, for the
synchronous data ports, this object is read-only. The input speed of the MODEM,
AUX, or COM port is the currently configured speed. Setting of this value for the
MODEM, AUX, or COM port causes the configured port speed to be changed.
General Port Table – “rs232PortOutSpeed” Object (rs232PortEntry 6)
This object contains the port’s output speed in bits per second. For the DSU/CSU,
the rs232PortInSpeed object has the same value as the rs232PortOutSpeed
object. The input speed of a synchronous data port is determined by the channel
configuration and cannot be changed through this object. Thus, for the
synchronous data ports, this object is read-only. The input speed of the MODEM,
AUX, or COM port is the currently configured speed. Setting of this value for the
MODEM, AUX, or COM port causes the configured port speed to be changed.