serialPortNum

This object identifies the serial port number.
              
The value 1 is used for Console Port.
The Console Port is also known as control port(CP).
              
The value 2 is used for Maintenance Port
and this can be used as SLIP
(Serial Line Internet Protocol) interface.
The Maintenance Port is also known as 
Modem Port(MP).

MIB

BASIS-SERIAL-MIB

OID

.1.3.6.1.4.1.351.110.4.1.1.1.1

Type

column

Access

readonly

Status

current

Parent

serialInterfaceEntry