1979-07-19 /BB-H240B-BM/01/uetp/decnet/brief.txt 1979-07-19 /BB-H241B-BM/01/uetp/decnet/brief.txt 1979-07-19 /DECNET-20_V2.1_2020_7-20-82/01/uetp/decnet/brief.txt