nanog mailing list archives
DECNet Good Old Days (spun from ...network boundaries...)
From: "James R. Cutler" <james.cutler () consultant com>
Date: Sun, 26 Aug 2007 19:19:41 -0400
Just for the record about DECNet:At the peak of population, I managed naming and addressing assignments for a DECNet network with just over 8000 nodes. Local routers were mostly Digital Equipment, some wide area used Cisco. After a major split in the network, the remaining 3500 or so Phase IV nodes coexisted happily with AppleTalk, IPX, and IP hosts on a Cisco backbone. My multiprotocol workstation was an Apple Macintosh IIci. Of course, by now the routing network is all IP based with several tens of thousands of routes in the default-free internal network.
Cutler When I switch, it is from Windows to Mac OS X At 8/26/2007 11:06 AM +0200, Peter Dambier wrote: John Osmon wrote:
I<snip> Years ago, I worked on a academic network where we had a mix of IPX, DECnet, Appletalk, and IP(v4). Not all of the routers actually routed each protocol -- DECnet wasn't routable, and I recall some routers that routed IPX, while bridging IP...
<Snip> I remember old DECNET, DDCMP, IPX and NetBios days. I used to have a couple of 19.2 kilobaud async lines, 2 arcnets and an ethernet (thinwire technology but on RG13U cables, almost yellow wire and UHF connectors - PL-259 like CB-radio). DDCMP could route, IPX could and NetBios was riding on either IPX or DDCMP so it did not matter. <snip/> In its best times the network was seeing some 1000 hosts. Everything was running 10 MBit ethernet. there were 9 segments and no routers. I have seen you could put some 30 NetBios PCs into a single segment or more than 200 DECNET hosts if they were connected via switches and thinwire transceivers. Today without thinwire or yellow cable and with switches that can do 1 Gbit between switches and 100 Mbit to devices you should be able to keep some 1000 hosts within a single switched network. <snip/> -- Peter and Karin Dambier Cesidian Root - Radice Cesidiana Rimbacher Strasse 16 D-69509 Moerlenbach-Bonsweiher +49(6209)795-816 (Telekom) +49(6252)750-308 (VoIP: sipgate.de) mail: peter () peter-dambier de mail: peter () echnaton arl.pirates http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/ http://www.cesidianroot.com/ - James R. Cutler james.cutler () consultant com
Current thread:
- IPv6 network boundaries vs. IPv4 John Osmon (Aug 25)
- Re: IPv6 network boundaries vs. IPv4 Peter Dambier (Aug 26)
- DECNet Good Old Days (spun from ...network boundaries...) James R. Cutler (Aug 26)
- Re: IPv6 network boundaries vs. IPv4 Kevin Oberman (Aug 26)
- Re: IPv6 network boundaries vs. IPv4 Jason LeBlanc (Aug 27)
- Re: IPv6 network boundaries vs. IPv4 John Osmon (Aug 27)
- Re: IPv6 network boundaries vs. IPv4 Jason LeBlanc (Aug 27)
- Re: IPv6 network boundaries vs. IPv4 Iljitsch van Beijnum (Aug 27)
- Re: IPv6 network boundaries vs. IPv4 Valdis . Kletnieks (Aug 27)
- <Possible follow-ups>
- RE: IPv6 network boundaries vs. IPv4 John van Oppen (Aug 27)
- Any MSN/Live Mail Admin Contacts? Raymond L. Corbin (Aug 27)
- Re: Any MSN/Live Mail Admin Contacts? Martin Hannigan (Aug 27)
- Any MSN/Live Mail Admin Contacts? Raymond L. Corbin (Aug 27)
- Re: IPv6 network boundaries vs. IPv4 Peter Dambier (Aug 26)