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Started by Piers Lauder
Mon, 13 Jul 1992 05:53
Unequal link paramameters
Author: Piers Lauder
Date: Mon, 13 Jul 1992 05:53
Date: Mon, 13 Jul 1992 05:53
154 lines
7512 bytes
7512 bytes
The latest version of MHSnet (1.3) has some optional extra checks for the toplogy, and these show the following irregularities, (sorted by site). These differences between link costs in opposite directions can leed to unintended loops. If you own any of the sites mentioned, please check the output and fix the parameters if necessary. unequal link costs: bunyip.cc.uq.oz.au to qdpii.comp.qdpi.oz.au => 0 qdpii.comp.qdpi.oz.au to bunyip.cc.uq.oz.au => 1 unequal link costs: chook.ua.oz.au to sirius.ua.oz.au => 100 sirius.ua.oz.au to chook.ua.oz.au => 0 unequal link costs: diemen.cc.utas.oz.au to sol.cc.deakin.oz.au => 100000 sol.cc.deakin.oz.au to diemen.cc.utas.oz.au => 0 unequal link costs: madvax.maths.uwa.oz.au to uniwa.cc.uwa.oz.au => 500 uniwa.cc.uwa.oz.au to madvax.maths.uwa.oz.au => 0 unequal link costs: necisa.ho.necisa.oz.au to pdqld.pd.necisa.oz.au => 1000 pdqld.pd.necisa.oz.au to necisa.ho.necisa.oz.au => 0 unequal link delays: action.admin.mayne.oz.au to mayne.admin.mayne.oz.au => 0 mayne.admin.mayne.oz.au to action.admin.mayne.oz.au => 24h00m unequal link delays: action.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to action.admin.mayne.oz.au => 24h00m unequal link delays: aecseq.co.aec.oz.au to swift.sw.oz.au => 24h00m swift.sw.oz.au to aecseq.co.aec.oz.au => 0 unequal link delays: aic.act.crime.oz.au to necisa.ho.necisa.oz.au => 0 necisa.ho.necisa.oz.au to aic.act.crime.oz.au => 24h00m unequal link delays: aic.act.crime.oz.au to sserve.cc.adfa.oz.au => 0 sserve.cc.adfa.oz.au to aic.act.crime.oz.au => 24h00m unequal link delays: allied.admin.mayne.oz.au to mayne.admin.mayne.oz.au => 0 mayne.admin.mayne.oz.au to allied.admin.mayne.oz.au => 24h00m unequal link delays: alpha.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to alpha.admin.mayne.oz.au => 24h00m unequal link delays: anu.anu.oz.au to sserve.cc.adfa.oz.au => 24h00m sserve.cc.adfa.oz.au to anu.anu.oz.au => 0 unequal link delays: arlunya.arl.oz.au to escargot.xx.rmit.oz.au => 24h00m escargot.xx.rmit.oz.au to arlunya.arl.oz.au => 12h00m unequal link delays: biobris.oz.au to bunyip.cc.uq.oz.au => 23h59m bunyip.cc.uq.oz.au to biobris.oz.au => 24h00m unequal link delays: braggs.admin.mayne.oz.au to mayne.admin.mayne.oz.au => 0 mayne.admin.mayne.oz.au to braggs.admin.mayne.oz.au => 24h00m unequal link delays: braggs.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to braggs.admin.mayne.oz.au => 24h00m unequal link delays: bruce.cs.monash.oz.au to trlluna.trl.oz.au => 24h00m trlluna.trl.oz.au to bruce.cs.monash.oz.au => 0 unequal link delays: bunyip.cc.uq.oz.au to cheops.qld.tne.oz.au => 0 cheops.qld.tne.oz.au to bunyip.cc.uq.oz.au => 24h00m unequal link delays: bunyip.cc.uq.oz.au to lance.hss.bu.oz.au => 0 lance.hss.bu.oz.au to bunyip.cc.uq.oz.au => 24h00m unequal link delays: bunyip.cc.uq.oz.au to metro.ucc.su.oz.au => 0 metro.ucc.su.oz.au to bunyip.cc.uq.oz.au => 3s unequal link delays: bunyip.cc.uq.oz.au to psych.psy.uq.oz.au => 0 psych.psy.uq.oz.au to bunyip.cc.uq.oz.au => 1s unequal link delays: coastal.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to coastal.admin.mayne.oz.au => 24h00m unequal link delays: diemen.cc.utas.oz.au to sol.cc.deakin.oz.au => 24h00m sol.cc.deakin.oz.au to diemen.cc.utas.oz.au => 7d00h unequal link delays: ditmela.oz.au to sunvic.oz.au => 0 sunvic.oz.au to ditmela.oz.au => 24h00m unequal link delays: dmssyd.dms.oz.au to metro.ucc.su.oz.au => 0 metro.ucc.su.oz.au to dmssyd.dms.oz.au => 24h00m unequal link delays: dtm.admin.mayne.oz.au to mayne.admin.mayne.oz.au => 0 mayne.admin.mayne.oz.au to dtm.admin.mayne.oz.au => 24h00m unequal link delays: dtm.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to dtm.admin.mayne.oz.au => 24h00m unequal link delays: durian.citr.uq.oz.au to bunyip.cc.uq.oz.au => 1s bunyip.cc.uq.oz.au to durian.citr.uq.oz.au => 0 unequal link delays: foetus.syd.sgi.oz.au to metro.ucc.su.oz.au => 24h00m metro.ucc.su.oz.au to foetus.syd.sgi.oz.au => 0 unequal link delays: kwik.admin.mayne.oz.au to mayne.admin.mayne.oz.au => 0 mayne.admin.mayne.oz.au to kwik.admin.mayne.oz.au => 24h00m unequal link delays: kwik.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to kwik.admin.mayne.oz.au => 24h00m unequal link delays: mayne.admin.mayne.oz.au to travcour.admin.mayne.oz.au => 24h00m travcour.admin.mayne.oz.au to mayne.admin.mayne.oz.au => 0 unequal link delays: necisa.ho.necisa.oz.au to metro.ucc.su.oz.au => 24h00m metro.ucc.su.oz.au to necisa.ho.necisa.oz.au => 0 unequal link delays: necisa.ho.necisa.oz.au to pdnsw.pd.necisa.oz.au => 24h00m pdnsw.pd.necisa.oz.au to necisa.ho.necisa.oz.au => 0 unequal link delays: necisa.ho.necisa.oz.au to pdqld.pd.necisa.oz.au => 24h00m pdqld.pd.necisa.oz.au to necisa.ho.necisa.oz.au => 0 unequal link delays: olympic.oz.au to monu6.cc.monash.oz.au => 24h00m monu6.cc.monash.oz.au to olympic.oz.au => 0 unequal link delays: otc.otca.oz.au to metro.ucc.su.oz.au => 24h00m metro.ucc.su.oz.au to otc.otca.oz.au => 0 unequal link delays: otc.otca.oz.au to swift.sw.oz.au => 24h00m swift.sw.oz.au to otc.otca.oz.au => 0 unequal link delays: pace.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to pace.admin.mayne.oz.au => 24h00m unequal link delays: pdact.pd.necisa.oz.au to pdqld.pd.necisa.oz.au => 24h00m pdqld.pd.necisa.oz.au to pdact.pd.necisa.oz.au => 0 unequal link delays: pdact.pd.necisa.oz.au to sserve.cc.adfa.oz.au => 24h00m sserve.cc.adfa.oz.au to pdact.pd.necisa.oz.au => 0 unequal link delays: peking.gdwb.oz.au to bruce.cs.monash.oz.au => 24h00m bruce.cs.monash.oz.au to peking.gdwb.oz.au => 0 unequal link delays: ptcburp.ptcbu.oz.au to lance.hss.bu.oz.au => 10m00s lance.hss.bu.oz.au to ptcburp.ptcbu.oz.au => 5m00s unequal link delays: regal.admin.mayne.oz.au to nickless.admin.mayne.oz.au => 0 nickless.admin.mayne.oz.au to regal.admin.mayne.oz.au => 24h00m unequal link delays: s1.elec.uq.oz.au to bunyip.cc.uq.oz.au => 1s bunyip.cc.uq.oz.au to s1.elec.uq.oz.au => 24h00m unequal link delays: sulaw.law.su.oz.au to metro.ucc.su.oz.au => 0 metro.ucc.su.oz.au to sulaw.law.su.oz.au => 24h00m unequal link delays: tplrd.tpl.oz.au to metro.ucc.su.oz.au => 24h00m metro.ucc.su.oz.au to tplrd.tpl.oz.au => 0 -- Computer Science, Sydney University, Madsen Bldg F09, Sydney NSW 2006 Phone: +61 2 692 3423 Fax: +61 2 692 3838
Re: Unequal link paramameters
Author: George Michaelson
Date: Mon, 13 Jul 1992 06:20
Date: Mon, 13 Jul 1992 06:20
39 lines
2233 bytes
2233 bytes
piers@joyce.cs.su.oz.au (Piers Lauder) writes:
>The latest version of MHSnet (1.3) has some optional extra checks
>for the toplogy, and these show the following irregularities,
>(sorted by site). These differences between link costs in opposite
>directions can leed to unintended loops. If you own any of the sites
>mentioned, please check the output and fix the parameters if necessary.
Dear Piers. please save myself and other sysops a lot of trouble by
explaining by example how we do this. The values shown by your automatically
generated table do not equate to values present in my commandsfile and I
am unwilling to stir the entrails without a better understanding of whats
required.
Take
bunyip<->qdpii as an instance.
you state:
unequal link costs:
bunyip.cc.uq.oz.au to qdpii.comp.qdpi.oz.au => 0
qdpii.comp.qdpi.oz.au to bunyip.cc.uq.oz.au => 1
I have this in commandsfile:
delay bunyip.D=cc.O=uq.oz.au,
N=stallion.D=sw.O=stallion.oz.au 86400
delay N=stallion.D=sw.O=stallion.oz.au,
bunyip.D=cc.O=uq.oz.au 86400
Now tell me what I should have.
-George
--
George Michaelson
G.Michaelson@cc.uq.oz.au The Prentice Centre | There's no market for
University of Queensland | hippos in Philadelphia
Phone: +61 7 365 4079 QLD Australia 4072 | -Bertold Brecht
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