Article View: vmsnet.networks.misc
Article #12Re: Running DECnet over multiple Ethernet adapters
From: Aaron Leonard
Date: Sat, 07 Nov 1992 02:22
Date: Sat, 07 Nov 1992 02:22
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2162 bytes
In article <BxB1tq.FFw@micrognosis.co.uk>, nreadwin@micrognosis.co.uk (Neil Readwin) writes:
|
| Can you run DECnet over multiple Ethernet adapters? If so, under what
| conditions? Would it work with:
|
| 1) 2 adapters on the same piece of wire with every node in the
| same area?
No. A DECnet Phase IV node can't have two interfaces on the same Ethernet,
because DECnet embeds the node's network-layer address in the interface's
Ethernet "physical" address so that it doesn't have to use ARP or something
like it. So you would wind up with two interfaces on the same Ethernet
with the same Ethernet address which won't work.
| 2) 2 adapters on 2 networks with every node in the same area?
Sure, this would be the usual way to do it.
| 3) 2 adapters on 2 networks with a different area for each node?
This would work too (assuming that you made each node an area [level 2]
router), but it would be perverse.
| If anyone can point to a section of the Networking Manual that I have missed
| then please do so :-) Neil.
I'm afraid I don't know whether I've seen this stuff in any manual.
Might I ask why you would want to do this? Your ordinary DECnet guys
just buy bridges if they want to partition their network. (And a bridge
will pass traffic better than any VAX will, and reboot faster.)
Best,
Aaron
Aaron Leonard (AL104), <Leonard@Arizona.EDU>
University of Arizona Network Operations, Tucson AZ 85721
"It's not a bug, it's a form of flow control."
- Jerry Leichter on why crash-prone Unix is a suitable
platform for NSFNET core routers
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Path: arc1-ca.pugleaf.net!sparky!uunet!stanford.edu!agate!spool.mu.edu!news.cs.indiana.edu!arizona.edu!telcom.arizona.edu!leonard Newsgroups: vmsnet.networks.misc Subject: Re: Running DECnet over multiple Ethernet adapters Message-ID: <1992Nov6.192244.3956@arizona.edu> From: leonard@telcom.arizona.edu (Aaron Leonard) Date: 6 Nov 92 19:22:41 MST Reply-To: Leonard@Arizona.EDU References: <BxB1tq.FFw@micrognosis.co.uk> Distribution: world,local Organization: University of Arizona Telecommunications Nntp-Posting-Host: penny.telcom.arizona.edu Lines: 41