This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular@ it defines a minimal set of managed objects for SNMPbased management of ISDN terminal interfaces. ISDN interfaces are supported on a variety of equipment (for data and voice) including terminal adapters@ bridges@ hosts@ and routers. This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular@ it defines a minimal set of managed objects for SNMPbased management of ISDN terminal interfaces. ISDN interfaces are supported on a variety of equipment (for data and voice) including terminal adapters@ bridges@ hosts@ and routers. This document is a product of the ISDN MIB working group within the Internet Engineering Task Force. Comments are solicited and should be addressed to the working group's mailing list at isdnmib@ cisco.com and/or the author. The current version of this document reflects changes made during the last call period and the IESG review.