Re: Subnetting


Doug_Nelson@um.cc.umich.edu
Mon, 9 May 88 12:32:08 EDT


BAD MSG:
perry
CSC.ARPA
pete
nssdca.gsfc.nasa.gov
peters
oly.acs.washington.edu
peterson%uwchem
CCQ.BBN.COM
pogran
CCA.CCA.COM.#Internet
post-tcp-ip
LANL.GOV.#Internet
post-tcp-ip
NRL-CSS.ARPA
post-tcp-ip
MIT-GOLDILOCKS.ARPA
Qux
cs.washington.edu
randy
ARDEC.ARPA
rhartman
NSWC2-G.ARPA
rhott
PARK-STREET.BBN.COM
robb
SEISMO.CSS.GOV
Romine
tcp-ip
NOSC.MIL
Ron
h.gp.cs.cmu.edu.#Internet
rudy.nedved
NYU-CMCL1.ARPA
RUSSELL
CSAB.LARC.NASA.GOV.#Internet
sdo
LOGICON.ARPA
sig-tcp
ECLC.USC.EDU
Smith
CS.WISC.EDU
song
tasman
SPAR-20.SPAR.SLB.COM
spar-tcp-ip
BEAST.DDN.MIL
STJOHNS
CCT.BBN.COM
streckfuss
nswc-g.arpa
surf-tcp-ip
gold.bacs.indiana.edu
sweeny
DMC-CRC.ARPA
symchych
ALMSA-1.ARPA
TC-LISTS
uunet.uu.net
tcp-ip%flora.wustl.edu
VB.CC.CMU.EDU.#Internet
tcp-ip%gold.scribe.com
BCO-MULTICS.ARPA
TCP-IP%LADC
TCP-IP-Meeting%pco
EDDIE.MIT.EDU.#Internet
TCP-IP-BBOARD%MIT-EECS
ADS.COM
tcp-ip-bboard
TE.CC.CMU.EDU.#Internet
TCP-IP-CMU
PROTEON.COM
tcp-ip-dist
um.cc.umich.edu
tcp-ip-dist
WHEATIES.AI.MIT.EDU
tcp-ip-dist
HPLABS.HP.COM
tcp-ip-hp
MCC.COM
TCP-IP-INBOX
ti.com
tcp-ip-incoming%csc.ti.com
AMES-NAS.ARPA
tcp-ip-list
AMES.ARC.NASA.GOV.#Internet
tcp-ip-local
ultra!bob
ultra!tcp-ip
PURDUE.EDU.#Internet
tcp-ip-local
EDN-VAX.ARPA
tcp-ip-local
nisc.nyser.net
tcp-ip-local
vax.ftp.com.#Internet
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DEVVAX.TN.CORNELL.EDU
tcp-ip-localdist
TRANTOR.UMD.EDU
tcp-ip-people
WARBUCKS.AI.SRI.COM
TCP-IP-POST
rand-unix.arpa
tcp-ip-rand
CS.UTAH.EDU.#Internet
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uc.msc.umn.edu.#Internet
tcp-ip-relay
HAMLET.CALTECH.EDU
tcp-ip-users
LBL.GOV
tcp-ip-users
anl-mcs.arpa
tcp-ip
BNLUX0.BNL.GOV
TCP-IP
BRAGGVAX.ARPA
tcp-ip
DREA-XX.ARPA
TCP-IP
GBA.NYU.EDU
TCP-IP
IFI.UIO.NO
TCP-IP
oliver.CS.McGill.CA.#Internet
tcp-ip
RADC-TOPS20.ARPA
TCP-IP
SEED.AMS.COM
TCP-IP
TIS.COM.#Internet
tcp-ip
TWG.COM
tcp-ip
USAFA.ARPA
tcp-ip
USNA.MIL
tcp-ip
wrath.cs.cornell.edu
tcp-ip
OSWEGO.OSWEGO.EDU.#Internet
tcp-ip-local
XEROX.COM
tcp-ip^.x
omnigate.clarkson.edu
tcpip-local
LBL-CSAM.ARPA
tcpip-news
van
cam.unisys.com
tcpip
CEEE-SED.ARPA
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NADC.ARPA
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Ted
venus.ycc.yale.edu.#Internet
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ccint1.rsre.mod.uk.#Internet
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tcpipskl
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tcpnews
etn-wlv.eaton.com.#Internet
teecp-ip
DECVAX.DEC.COM
templin
wilde
DEC-VAX-11-750.ARPA
terry
newton.ncsa.uiuc.edu
timk
DTIX.ARPA
Tinker
CCV.BBN.COM
tmallory
zopalka
tut.cis.ohio-state.edu.#Internet
tom
violet.berkeley.edu
ucdla
ICS.UCI.EDU
UCI-SRI-TCP-IP
ee.UCLA.EDU
ucla-an!stan
NARDACVA.ARPA
usergrp
yx0quinn
nrl3.arpa
userservices
gargoyle.uchicago.edu
vijit!tcplist
wsmr04.arpa
vstefane
ICST-ECF.ARPA
Walters
faline.bellcore.com.#Internet
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vlsi.cs.washington.edu
WHJ
csli.stanford.edu
whp4
LL-VLSI.ARPA
wjc

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Date: Tue, 10 May 88 08:25:13 CDT
From: Guy Almes <almes@rice.edu>
Message-Id: <8805101325.AA15092@iapetus>
To: pyramid!leadsv!laic!wilson@decwrl.dec.com
Subject: Re: Many things on ethernet together???
Cc: tcp-ip@sri-nic.arpa

RD:
  The key point here is that ethernet is a ``local area network'' technology,
and that its designers *never* intended it to be a wide area network. This is
not to say that long-distance bridging is never the right thing to do, but
only that you should not be surprised when it exhibits limits.
  This idea of `local' suggests, not only physically proximity, but also
adminstrative unity. In your case, it wasn't the physical distance, but
the administrative distance that caused the problems. If you stay with the
single pseudo-ethernet bridged approach, then you will need to have admini-
strative structures that treat it as a single ethernet.
        -- Guy



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