ifChassisLogicalUnit

The logical unit number of the specified interface.
It is the logical part of the interface that is 
configured on the physical or channel part if any.
              
Although the logical unit number is numbered from 0 and
up in the interface naming, the return value for this 
object always starts from 1 according to Network 
Management convention.  For the interface which is 
really a physical device, this value returns zero.

MIB

JUNIPER-IF-MIB

OID

.1.3.6.1.4.1.2636.3.3.2.1.5

Type

column

Access

readonly

Status

current

Parent

ifChassisEntry