University of California, Los Angeles (UCLA) This note is a revision of NWG/RFC 10 and 16,. The Network Working Group consists of interested people from existing or potential ARPA network sites. Membership is not closed. The Network Working Group (NWG) is concerned with the HOST software, the strategies for using the network, and initial experience with the network. Documentation of the NWG's effort is through notes such as this. Notes may be produced at any site by and included in this series.