IMHW400@INDYVAX.BITNET (06/06/88)
Ruth Milner (SYSRUTH@utorphys.bitnet) writes: > ...though with V5 DECnet I think >they can go higher than the current 63. She is correct. Here is the address layout that I got at the DECUS Symposium: 11 bytes Initial Domain Part. This will be something like a telephone number, an ISDN address, an X.121 network number etc; it tells which network you are in. 2 bytes Area number. 65536 areas within a network within an internet. ----- 6 bytes Node number. Note that it is big enough for an Ethernet address. 1 byte Protocol type. I don't know what this will do for us. The presenter at the Phase V session stated that Phase V would "realistically" support "million-node" networks. (It was also stated that DEC expects to run out of Phase IV address space on their internal network by the time Phase V ships, if not before, so as usual they are driven both externally and internally to deliver this phase soon!) A hierarchial namespace will be supported by the Distributed Naming Service to help us name all these nodes, and an alias database will preserve backward-compatibility with the present 6-byte flat namespace. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Mark H. Wood IMHW400@INDYVAX.BITNET (317)274-0749 III U U PPPP U U III Indiana University - Purdue University at Indianapolis I U U P P U U I 799 West Michigan Street, ET 1023 I U U PPPP U U I Indianapolis, IN 46202 USA I U U P U U I [@disclaimer@] III UUU P UUU III