The definition of the ifNumber object was incorrect, as it required all interfaces to support IP. (For example, devices without IP, such as MAC-layer bridges, could not be managed if this definition was strictly followed.) The description of the ifNumber object is changed accordingly.
The ifTable object was mistaken marked as read-write, it has been (correctly) re-designated as not-accessible. In addition, several new values have been added to the ifType column in the ifTable object:
ppp(23) softwareLoopback(24) eon(25) ethernet-3Mbit(26) nsip(27) slip(28) ultra(29) ds3(30) sip(31) frame-relay(32)
Finally, a new column has been added to the ifTable object:
which provides information about information specific to the media being used to realize the interface.