CURRENT_MEETING_REPORT_ Reported by Ross Callon/ DEC Mintes of April 17th, 1990 The IS-IS working group met jointly with ANSI X3S3.3, April 17th and 18th, in Tucson Arizona. We considered two main sets of issues: (i) Possible technical changes and editorial clarifications to the IETF (integrated) IS-IS specification, based on comments received on the Internet Draft; (ii) Possible changes to the OSI IS-IS specification (for possible inclusion in the U.S. ballot comments on the ISO DP ballot). Based on our discussions, the editor of the IETF IS-IS specification was charged with producing an updated draft, which he promised to distribute to the IS-IS working group before submission as an RFC. The main technical changes include: (i) a generalization of the manner of dealing with IP External Reachability Information in level 2 LSPs; (ii) Further definition of the Authentication field; (iii) More complete definition of the Dijkstra algorithm; and (iv) More complete definition of encapsulation and decapsulation. A number of editorial clarifications were also proposed. In addition, our discussion resulted in one addition to the U.S. ballot comments on the ISO DP ballot. If accepted, this would allow more general treatment of external OSI reachability information, and would allow the integrated IS-IS specification to treat IP and OSI external reachable address information in the same manner. 1