Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: Notesfiles $Revision: 1.7.0.10 $; site uiucdcs Path: utzoo!watmath!clyde!cbosgd!ihnp4!inuxc!pur-ee!uiucdcs!irwin From: irwin@uiucdcs.CS.UIUC.EDU Newsgroups: net.dcom Subject: Re: What is TCP/IP Subnetting? Message-ID: <8900008@uiucdcs> Date: Fri, 17-Jan-86 13:32:00 EST Article-I.D.: uiucdcs.8900008 Posted: Fri Jan 17 13:32:00 1986 Date-Received: Tue, 21-Jan-86 07:05:37 EST References: <904@rlgvax.UUCP> Lines: 49 Nf-ID: #R:rlgvax.UUCP:904:uiucdcs:8900008:000:1577 Nf-From: uiucdcs.CS.UIUC.EDU!irwin Jan 17 12:32:00 1986 Laser Printer | Main Ethernet T-------O-------O-------O-------O-------O-------O-------T | | | | | Main Main Main Server Server Frame Frame Frame One Two Three | Subnet One T-------O-------O-------O-------O-------O-------T | | | | | Sun Sun Sun Sun Sun 170 170 170 120 120 #01 #02 #03 #01 #02 w/disk w/disk w/disk diskless diskless | Subnet Two T-------O-------O-------O-------O-------O-------T | | | | | Work Work Work Work Work Station Station Station Station Station In the above map: T is a terminator at coax end. O is the trancievers. | is the drop cables, transceiver to machine. Main Frame One is gateway to Subnet One. Sun 170 #01 is gateway to Subnet Two. Sun 120 #01 and #02 run diskless, using one of the 170s disks over ethernet. The advantage of the subnet, it keeps the diskless Suns traffic and work stations off of the main net, except when grabbing a file from a server or sending output to the printer, etc. Also, if one of the subnets fail, open coax, bad transceiver, etc., it will not hang the other nets at a different gateway level. All levels can access the printer, rlogins can get the work stations to main frame to check mail, etc. Note that the gateway machines require two ethernet interfaces each in the above illustration. Hope this helps. I think this is the application of the term as you are using it.