August 2013 - Test - lists.nanog.org

Verizon So Cal issues?
by James Laszko 28 Aug '13

28 Aug '13

We are seeing huge latency and packet loss issues with Verizon (DSL/FIOS) in Southern California. Does anyone have any insight? Issues started around 8:10AM Pacific. Regards, James Laszko Mythos Technology Inc jamesl(a)mythostech.com<mailto:jamesl@mythostech.com>

4 3

looking for hostname geographic hint validation
by Bradley Huffaker 28 Aug '13

28 Aug '13

We are currently working on an algorithm that automatically detects geographic hints inside of hostnames. At this point we are seeking operators who can validate some of our inferences. Please contact me if you can valid one of the inferences below or can provide us with one we have missed. ########################################### # Inferences ########################################### <iata> (International Air Transport Association airport code) http://en.wikipedia.org/wiki/International_Air_Transport_Association_airpor… <iaco> International Civil Aviation Organization airport code http://en.wikipedia.org/wiki/International_Civil_Aviation_Organization_airp… <clli> COMMON LANGUAGE Location Identifier Code http://en.wikipedia.org/wiki/CLLI <city name> largest populated city with the given name for example "sandiego" is "San Diego, CA, US" <iata>[^a-z]+[a-z]+\d*.0rbitel.net <iata>([^a-z]+[a-z]+\d*){2}.360.net <iata>[^a-z]+[a-z]+\d*.NULL <iata>[^a-z]+[a-z]+\d*.aaanet.ru <iata>-vis\d*.aapt.net.au <iata>.aarnet.net.au <city name>[^a-z]+[a-z]+\d*.above.net <iata>[^a-z]+[a-z]+\d*.above.net <city name>.ac-net.net <iata>.accretive-networks.net <iata>\d*.acens.net <iata>.acesso10.net.br <city name>\d*.aco.net <iata>.acsalaska.net <iata>[^a-z]+[a-z]+\d*.acsalaska.net <iata>.wholesale.adamo.es <iata>\d*.adaptplc.com <iata>.par.adenis.fr <iata>-esr\d*.edc\d*.adhost.com <iata>-...\d*....\d*.adhost.net <city name>([^a-z]+[a-z]+\d*){2}.adnettelecom.ro <city name>-noc.affrc.go.jp <iata>([^a-z]+[a-z]+\d*){5}.africainx.net <iata>-........-....africainx.net <iata>\d*....afrisp.net <city name>\d*.afsnetworks.com <city name>.ahrt.hu <iata>.rev.hu.ahrt.hu <iata>([^a-z]+[a-z]+\d*){2}.ainaip.net <iata>([^a-z]+[a-z]+\d*){4}.ainaip.net <iata>.airband.net <city name>([^a-z]+[a-z]+\d*){2}.airexpress.net.ua <city name>([^a-z]+[a-z]+\d*){3}.airexpress.net.ua <iata>([^a-z]+[a-z]+\d*){2}.airtelbroadband.in <iata>\d*.netarch.akamai.com <city name>[^a-z]+[a-z]+\d*.akquinet.de <iata>\d*.alestra.net.mx <city name>\d*-...alkar.net <iata>.se.alltele.net <iata>([^a-z]+[a-z]+\d*){3}.alog.com.br <iata>.altecom.net <iata>([^a-z]+[a-z]+\d*){2}.alter.net <iata>\d*.alter.net <iata>\d*.amcbb.net <clli>.ameritech.net <city name>[^a-z]+[a-z]+\d*.amis.net <city name>\d*.amis.net <iata>([^a-z]+[a-z]+\d*){2}.amobia.com <city name>.amplivia.fr <iata>-..\d*-....\d*.anittel.net <iata>1.antel.net.uy <iata>\d*bras\d*-bb\d*.antel.net.uy <iata>01a-ra1.aorta.net <iata>01b-rd1-ae12.aorta.net <iata>[^a-z]+[a-z]+\d*.apexn.com.au <iata>([^a-z]+[a-z]+\d*){2}.arbinet.net <iata>\d*.arbinet.net <iata>[^a-z]+[a-z]+\d*.arianrp.ir <iata>.as12703.net <iata>\d*....as13237.net <iata>.as13285.net <city name>([^a-z]+[a-z]+\d*){2}.as2116.net <city name>([^a-z]+[a-z]+\d*){3}.as2116.net <iata>1.as24557.net.au <iata>.ip.as29154.net <iata>\d*.as39506.net <iata>.at.as39912.net <iata>[^a-z]+[a-z]+\d*.as42689.net <iata>1.as4851.net <city name>([^a-z]+[a-z]+\d*){3}.as5580.net <iata>[^a-z]+[a-z]+\d*.as5580.net <iata>.as5587.net <city name>\d*.as6453.net <iata>.as8218.eu <iata>([^a-z]+[a-z]+\d*){4}.as9143.net <city name>\d*.ascotlc.net <iata>\d*.asianetcom.net <iata>-xmr.ask4.net <iata>0.bran.asnet.am <city name>.astral.ro <iata>\d*.-..\d*-.....astral.ro <iata>([^a-z]+[a-z]+\d*){2}.atcsp.co.za <iata>-sw0.atdn.net <iata>.atman.pl <city name>\d*....\d*....atrato.net <iata>\d*....atrato.net <iata>\d*.attens.net <iata>.at.atusmedia.net <city name>.avantel.ru <iata>[^a-z]+[a-z]+\d*.avonet.cz <iata>49-02.bcb.axione.fr <iata>([^a-z]+[a-z]+\d*){2}.axtel.net <iata>.bahnhof.net <iata>[^a-z]+[a-z]+\d*.bahnhof.net <iata>.basefarm.net <iata>([^a-z]+[a-z]+\d*){3}.bboi.net <iata>-agg.bboi.net <iata>.bboi.net <iata>\d*-h\d*.dslam.bbox.fr <iata>.nl.bcc-ip.net <city name>([^a-z]+[a-z]+\d*){2}.bell.ca <city name>([^a-z]+[a-z]+\d*){3}.bell.ca <city name>([^a-z]+[a-z]+\d*){4}.bell.ca <city name>[^a-z]+[a-z]+\d*.bell.ca <iata>.bellsouth.net <iata>[^a-z]+[a-z]+\d*.bellsouth.net <city name>\d*.belwue.de <city name>([^a-z]+[a-z]+\d*){2}.belwue.net <city name>[^a-z]+[a-z]+\d*.belwue.net <iata>[^a-z]+[a-z]+\d*.binc.net <iata>\d*.binc.net <city name>([^a-z]+[a-z]+\d*){2}.bit.nl <iata>4.network.bit.nl <iata>\d*.blatzheim.com <iata>.blix.com <city name>.se.borderlight.net <iata>.borealisbroadband.net <iata>([^a-z]+[a-z]+\d*){2}.borwood.net <iata>[^a-z]+[a-z]+\d*.borwood.net <city name>[^a-z]+[a-z]+\d*.brasiltelecom.net.br <iata>([^a-z]+[a-z]+\d*){3}.brcentral.net.br <iata>([^a-z]+[a-z]+\d*){2}.bredband2.net <iata>-wy.client.bresnan.net <iata>([^a-z]+[a-z]+\d*){2}.broadviewnet.net <iata>.broadviewnet.net <iata>[^a-z]+[a-z]+\d*.broadviewnet.net <iata>.bt.net <iata>[^a-z]+[a-z]+\d*.bt.net <iata>-gw01-tu1.bu.edu <iata>.businessit.ro <iata>.bytemark.co.uk <city name>[^a-z]+[a-z]+\d*.c2internet.net <city name>([^a-z]+[a-z]+\d*){2}.cablelynx.com <city name>([^a-z]+[a-z]+\d*){3}.cablenet-as.net <iata>-vpls\d*.caribsurf.com <iata>\d*.caribsurf.com <city name>[^a-z]+[a-z]+\d*.carnet.hr <iata>([^a-z]+[a-z]+\d*){3}.carnet.hr <city name>.id.cebridge.net <iata>([^a-z]+[a-z]+\d*){2}.cenic.net <iata>([^a-z]+[a-z]+\d*){3}.cenic.net <iata>[^a-z]+[a-z]+\d*.cenic.net <iata>([^a-z]+[a-z]+\d*){4}.century.net.br <city name>.centurytel.net <clli>([^a-z]+[a-z]+\d*){3}.centurytel.net <iata>\d*.cernet.net <iata>\d*.cesnet.cz <city name>.la.charter.com <clli>([^a-z]+[a-z]+\d*){3}.charter.com <city name>([^a-z]+[a-z]+\d*){2}.cica.es <city name>\d*.red.cica.es <city name>2.cifnet.net <iata>([^a-z]+[a-z]+\d*){3}.cisco.com <city name>.clix.net.nz <city name>([^a-z]+[a-z]+\d*){2}.cloud-ix.net <iata>\d*-\d*.dslam.club-internet.fr <iata>\d*.club-internet.fr <iata>([^a-z]+[a-z]+\d*){3}.cmcnetworks.net <iata>-.......cnc.net <iata>.he.cns-internet.com <iata>\d*.cns-internet.com <city name>[^a-z]+[a-z]+\d*.cogentco.com <iata>[^a-z]+[a-z]+\d*.cogentco.com <iata>.colocrossing.com <iata>[^a-z]+[a-z]+\d*.colt.net <iata>[^a-z]+[a-z]+\d*.columbus-networks.com <city name>([^a-z]+[a-z]+\d*){2}.comcast.net <city name>[^a-z]+[a-z]+\d*.comcastbusiness.net <iata>([^a-z]+[a-z]+\d*){2}.comhem.se <iata>.comindico.com.au <city name>.commcorp.net.br <city name>.comstar-r.ru <city name>.comstar.ru <city name>[^a-z]+[a-z]+\d*.comstar.ru <city name>([^a-z]+[a-z]+\d*){2}.convergenze.it <city name>\d*.convergenze.it <iata>.copel.net <city name>([^a-z]+[a-z]+\d*){2}.corbina.net <city name>([^a-z]+[a-z]+\d*){3}.corbina.net <city name>[^a-z]+[a-z]+\d*.corbina.net <iata>([^a-z]+[a-z]+\d*){4}.corbina.net <iata>\d*.core-backbone.com <city name>([^a-z]+[a-z]+\d*){2}.coreix.net <iata>([^a-z]+[a-z]+\d*){2}.corenap.com <iata>([^a-z]+[a-z]+\d*){3}.corenap.com <iata>-\d*-\d*.meq.corenap.com <clli>\d*.corexchange.com <city name>.covad.com <iata>.ok.cox.net <iata>\d*-cr\d*-be\d*.cprm.net <iata>([^a-z]+[a-z]+\d*){6}.csc.com <iata>.csolutions.net <city name>([^a-z]+[a-z]+\d*){2}.ct.gov <iata>([^a-z]+[a-z]+\d*){2}.cutcom.net <city name>-.......cw.net <iata>.cw.net <iata>[^a-z]+[a-z]+\d*.cw.net <city name>\d*.cwpanama.net <iata>.cyber.net.pk <iata>([^a-z]+[a-z]+\d*){2}.cypresscom.net <city name>\d*....cyta-ip.net <iata>\d*.cytanet.com.cy <city name>\d*-loc-cr\d*.damamax.net <city name>\d*-loc.damamax.net <iata>.danaher.net <iata>\d*.datafoundry.net <iata>[^a-z]+[a-z]+\d*.dataline.net.ua <iata>([^a-z]+[a-z]+\d*){2}.dataphone.net <iata>[^a-z]+[a-z]+\d*.dbd-breitband.de <iata>\d*.dbnet.dk <iata>.dellservices.net <iata>([^a-z]+[a-z]+\d*){3}.demon.net <city name>[^a-z]+[a-z]+\d*.demos.net <city name>([^a-z]+[a-z]+\d*){2}.dfn.de <iata>([^a-z]+[a-z]+\d*){3}.dfn.de <iata>.dft.com.au <city name>.dialog.net.pl <city name>.digi.pl <city name>.za.digi.pl <iata>([^a-z]+[a-z]+\d*){3}.digica.com <iata>([^a-z]+[a-z]+\d*){2}.digitalcable.ro <iata>1.digitalwest.net <iata>.....digitelitalia.com <city name>[^a-z]+[a-z]+\d*.digsys.bg <city name>\d*.digsys.bg <iata>[^a-z]+[a-z]+\d*.direct.net.in <iata>([^a-z]+[a-z]+\d*){3}.diveo.net.br <iata>.dls.net <iata>([^a-z]+[a-z]+\d*){2}.dnaip.fi <iata>[^a-z]+[a-z]+\d*.dnaip.fi <iata>([^a-z]+[a-z]+\d*){2}.doruk.net.tr <iata>([^a-z]+[a-z]+\d*){3}.doruk.net.tr <iata>.doruk.net.tr <iata>[^a-z]+[a-z]+\d*.doruk.net.tr <city name>.dren.net <iata>[^a-z]+[a-z]+\d*.dren.net <clli>[^a-z]+[a-z]+\d*.dsl.net <iata>........dtag.de <city name>.dts.mg <iata>([^a-z]+[a-z]+\d*){3}.duke.edu <clli>.e-xpedient.com <city name>[^a-z]+[a-z]+\d*.eastman.net.uk <iata>\d*.ixmad.es.easynet.net <city name>.edgetelecom.net.uk <city name>.eircom.net <iata>.electro-com.ru <iata>.elisa.ee <city name>.elte.hu <city name>([^a-z]+[a-z]+\d*){3}.embratel.net.br <iata>.embratel.net.br <iata>([^a-z]+[a-z]+\d*){2}.emman.net <iata>.ensite.com.br <city name>([^a-z]+[a-z]+\d*){2}.enta.net <iata>[^a-z]+[a-z]+\d*.enta.net <iata>-\d*.bb.entelchile.net <iata>.entelchile.net <iata>[^a-z]+[a-z]+\d*.entelnet.bo <iata>.enventis.net <iata>.epikip.net <iata>-e100.cust.gw.epoch.net <iata>([^a-z]+[a-z]+\d*){2}.ercbroadband.org <iata>([^a-z]+[a-z]+\d*){3}.ercbroadband.org <iata>([^a-z]+[a-z]+\d*){2}.ernet.in <iata>-backbone.ernet.in <city name>.ertelecom.ru <iata>.esc.net.au <iata>.estpak.ee <city name>-bg-\d*-ae\d*.eunet.rs <city name>[^a-z]+[a-z]+\d*.eunet.rs <iata>[^a-z]+[a-z]+\d*.eunetip.net <iata>[^a-z]+[a-z]+\d*.eunx.net <iata>([^a-z]+[a-z]+\d*){3}.eut.ru <iata>\d*.evolink.net <iata>.ew.ro <iata>[^a-z]+[a-z]+\d*.ewe-ip-backbone.de <iata>([^a-z]+[a-z]+\d*){2}.fasttelco.net <iata>\d*.fasttelco.net <city name>.fcc.ad.jp <city name>1gai.fcc.ad.jp <iata>.fcibroadband.com <city name>-cmts\d*.fibernet.hu <iata>.fiberpipe.net <city name>.fidnet.com <city name>[^a-z]+[a-z]+\d*.fidnet.com <city name>([^a-z]+[a-z]+\d*){4}.fiord.ru <iata>01.us.firehost.com <iata>-dc3.firenet.net.au <iata>\d*.flagtel.com <iata>([^a-z]+[a-z]+\d*){4}.flrnet.org <iata>-..-.\d*.....flrnet.org <iata>.forthnet.gr <iata>[^a-z]+[a-z]+\d*.fplfn.net <city name>.fraunhofer.de <city name>([^a-z]+[a-z]+\d*){2}.free.net <iata>([^a-z]+[a-z]+\d*){3}.fregat.net <iata>([^a-z]+[a-z]+\d*){2}.frogfoot.net <city name>.in.frontiernet.net <iata>([^a-z]+[a-z]+\d*){2}.frontiernet.net <city name>-gw.fsknet.dk <iata>.dk.ip.fullrate.dk <city name>\d*.funet.fi <city name>([^a-z]+[a-z]+\d*){2}.fuse.net <iata>.g8.net.br <city name>([^a-z]+[a-z]+\d*){2}.garr.net <city name>([^a-z]+[a-z]+\d*){3}.gblnet.ru <iata>\d*.gblx.net <iata>\d*-...-..gbonline.com.br <iata>\d*.uk.gbxs.net <iata>[^a-z]+[a-z]+\d*.geant.net <iata>....geant2.net <iata>.gibtelecom.net <city name>.gldn.net <city name>.globalcom.lv <iata>.glowpoint.net <city name>.golden.ru <iata>([^a-z]+[a-z]+\d*){2}.golden.ru <clli>.grandecom.net <city name>\d*-\d*-\d*.ip.granderiver.com <city name>([^a-z]+[a-z]+\d*){2}.grnet.gr <iata>\d*.ptp.gru.net <city name>.........gts.sk <iata>.gvt.net.br <iata>.de.hansenet.net <city name>.hbone.hu <city name>[^a-z]+[a-z]+\d*.hbone.hu <iata>([^a-z]+[a-z]+\d*){2}.hbone.hu <iata>\d*.he.net <iata>\d*.hopone.net <iata>\d*.host-h.net <iata>.host.net <iata>.hostedsolutions.com <iata>\d*.hosting.com <iata>([^a-z]+[a-z]+\d*){3}.hotnet.net.il <iata>.hotze.com <city name>.hp.com <city name>.hypnet.pl <city name>\d*.colo\d*.dus.iacd.net <iata>.core\d*.ibtelecom.net.br <iata>.ibtelecom.net.br <iata>([^a-z]+[a-z]+\d*){3}.ic.ac.uk <city name>.ielo.net <iata>0.ifb.net <city name>.th2.ifl.net <iata>([^a-z]+[a-z]+\d*){3}.ii.net <iata>\d*.on.ii.net <clli>\d*.iinet.com <iata>([^a-z]+[a-z]+\d*){2}.iinet.net.au <iata>([^a-z]+[a-z]+\d*){3}.imp.ch <iata>[^a-z]+[a-z]+\d*.in.ua <iata>([^a-z]+[a-z]+\d*){4}.indosat.com <iata>([^a-z]+[a-z]+\d*){5}.indosat.com <iata>.inet.de <iata>\d*.de.inetbone.net <city name>[^a-z]+[a-z]+\d*.inetia.pl <city name>.infolink.ru <iata>-\d*.net.infomaniak.ch <iata>1.inforelay.net <iata>[^a-z]+[a-z]+\d*.init7.net <clli>.inoc.net <iata>-pol43.cr.inotel.net <clli>01.integra.net <iata>01.intelepeer.net <iata>([^a-z]+[a-z]+\d*){2}.intelsatone.net <iata>.interhost.com <iata>([^a-z]+[a-z]+\d*){3}.interop.net <iata>.enet.interop.net <iata>([^a-z]+[a-z]+\d*){2}.interoute.net <iata>-...-.....-\d*-..\d*.interoute.net <iata>-...\d*.....intrinsec.net <city name>-pe\d*.invitel.net <iata>-....-..iovation.com <city name>[^a-z]+[a-z]+\d*.iowatelecom.net <iata>\d*.ip-max.net <iata>-.-\d*-...\d*-\d*....ip-plus.net <city name>([^a-z]+[a-z]+\d*){3}.ipartners.pl <city name>[^a-z]+[a-z]+\d*.ipartners.pl <city name>([^a-z]+[a-z]+\d*){2}.ipb.na <iata>.iprimus.net.au <iata>.iptransit.com <iata>.iquest.net <city name>([^a-z]+[a-z]+\d*){2}.irtel.ru <city name>-3-l0.irtel.ru <iata>1.isc.org <iata>([^a-z]+[a-z]+\d*){3}.iseek.com.au <iata>[^a-z]+[a-z]+\d*.iseek.com.au <iata>([^a-z]+[a-z]+\d*){2}.isnet.net <iata>([^a-z]+[a-z]+\d*){3}.isnet.net <iata>[^a-z]+[a-z]+\d*.isomedia.com <iata>.itgate.net <city name>([^a-z]+[a-z]+\d*){2}.ja.net <city name>([^a-z]+[a-z]+\d*){3}.ja.net <city name>([^a-z]+[a-z]+\d*){5}.ja.net <iata>\d*.jaring.my <iata>\d*.jmfnetworks.net <city name>.jussieu.fr <iata>-co.k12.ca.us <iata>\d*.......\d*.kaiaglobal.com <city name>.net.kanren.net <city name>\d*ml\d*.bb.kddi.ne.jp <iata>\d*.kems.net <city name>.kent.edu <city name>([^a-z]+[a-z]+\d*){2}.kis.ru <iata>.kpnqwest.it <city name>.....ktk.de <iata>([^a-z]+[a-z]+\d*){2}.la.net <iata>([^a-z]+[a-z]+\d*){3}.la.net <iata>[^a-z]+[a-z]+\d*.la.net <iata>.net.lagis.at <iata>[^a-z]+[a-z]+\d*.lambdanet.net <iata>([^a-z]+[a-z]+\d*){4}.latisys.net <iata>-..latisys.net <city name>\d*.level3.net <city name>......liazo.net <iata>[^a-z]+[a-z]+\d*.lightpath.net <city name>.lincon.net <iata>([^a-z]+[a-z]+\d*){2}.link.net.pk <iata>([^a-z]+[a-z]+\d*){3}.link.net.pk <iata>.link.net.pk <city name>\d*.linnea.net <iata>([^a-z]+[a-z]+\d*){2}.linxtelecom.net <iata>[^a-z]+[a-z]+\d*.liquidtelecom.net <iata>\d*.liquidtelecom.net <iata>\d*.llnw.net <iata>([^a-z]+[a-z]+\d*){3}.logic.bm <iata>\d*.logic.bm <iata>[^a-z]+[a-z]+\d*.m247.com <iata>([^a-z]+[a-z]+\d*){4}.malagasy.com <iata>-e1.malagasy.com <iata>01-core01.agg01.mango.com.bd <city name>.maxnet.ir <city name>.maxnet.ru <iata>.infra.mcs.de <city name>([^a-z]+[a-z]+\d*){3}.mediaways.net <clli>\d*-...\d*....megapath.net <iata>.bb.megapath.net <iata>.megapath.net <iata>.megared.net.mx 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<iata>([^a-z]+[a-z]+\d*){2}.voxility.net <iata>\d*.vrsn.net <city name>.vsnl.net.in <city name>[^a-z]+[a-z]+\d*.vsnl.net.in <iata>([^a-z]+[a-z]+\d*){2}.vsnl.net.in <city name>.vt.ru <city name>[^a-z]+[a-z]+\d*.vt.ru <city name>([^a-z]+[a-z]+\d*){2}.wa-k20.net <city name>\d*.....waycom.net <iata>([^a-z]+[a-z]+\d*){2}.wayport.net <iata>([^a-z]+[a-z]+\d*){3}.wayport.net <iata>.wbs.co.za <clli>([^a-z]+[a-z]+\d*){2}.wcg.net <clli>([^a-z]+[a-z]+\d*){3}.wcg.net <iata>[^a-z]+[a-z]+\d*.wcom.net <icao>([^a-z]+[a-z]+\d*){2}.wctc.net <icao>-\d*..wctc.net <iata>.wildcard.net.uk <city name>-hub-eth0.wiscnet.net <iata>[^a-z]+[a-z]+\d*.wispnet.net <iata>([^a-z]+[a-z]+\d*){4}.wm.edu <iata>([^a-z]+[a-z]+\d*){5}.wm.edu <iata>-..\d*.wolcomm.net <iata>[^a-z]+[a-z]+\d*.worldspice.net <city name>([^a-z]+[a-z]+\d*){2}.xo.net <city name>\d*.xs4all.net <city name>\d*.xtraordinary.net.uk <iata>.yahoo.com <iata>.ygnition.net <iata>[^a-z]+[a-z]+\d*.yipes.com <iata>\d*.youbroadband.in <iata>([^a-z]+[a-z]+\d*){4}.zenon.net <city name>.zitomedia.net <iata>([^a-z]+[a-z]+\d*){2}.zonedata.net <iata>([^a-z]+[a-z]+\d*){4}.zsttk.ru <iata>.zsttk.ru <iata>.zumpatelecom.com.br -- the value of a world model is not how accurately it captures reality but how often it leads us to take appropriate action

4 5

Fwd: [newtech-1] Barclays wifi
by Joly MacFie 28 Aug '13

28 Aug '13

>From the NY tech meetup list. Any one here care to comment, off or on list? j ---------- Forwarded message ---------- From: Dean Collins Anyone know more about Barclay Wifi - http://www.fastcompany.com/3007452/innovation-agents/brooklyn-nets-barclays… **** ** ** Can they really stream hidef video to 19,000 devices simultaneously in hd via wifi? Surely they are hitting some spatial limits…..? (eg I know when my old company sold a DECT platform to the ASX we ran into bandwidth limits for the number of base stations in a single room)**** ** ** ** ** ** ** Cheers,**** Dean**** ** ** -- --------------------------------------------------------------- Joly MacFie 218 565 9365 Skype:punkcast WWWhatsup NYC - http://wwwhatsup.com http://pinstand.com - http://punkcast.com VP (Admin) - ISOC-NY - http://isoc-ny.org -------------------------------------------------------------- -

3 3

Hello, Atlantic.net?
by Drew Linsalata 28 Aug '13

28 Aug '13

Sorry to use the list for this, but if anyone from Atlantic.net is listening that has any idea of what the status of your cloud situation is, it would be most appreciated. Usual support channels are resulting in dead air. Thanks.

1 0

RE: TCP Performance
by Nick Olsen 27 Aug '13

27 Aug '13

I do indeed have stats for "TX Pause Frames" And they do increment. However, Our router is ignoring them since it doesn't support flow control. I guess my next question would be. In the scenario where we insert a switch between the radio and the router that does support flow control. Are we not only moving where the overflow is going to occur? Will we not see the router still burst traffic at line rate toward the switch, Which then buffer overflows sending to the radio on account of it receiving pause frames? Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Tim Warnock" <timoid(a)timoid.org> Sent: Tuesday, August 27, 2013 1:08 PM To: "Blake Dunlap" <ikiris(a)gmail.com>, "nick(a)flhsi.com" <nick(a)flhsi.com> Cc: "nanog(a)nanog.org" <nanog(a)nanog.org> Subject: RE: TCP Performance > Regardless, your problem looks like either tail drops or packet loss, which > you showed originally. The task is to find out where this is occurring, and > which of the two it is. If you want to confirm what is going on, there are > some great bandwidth calculators on the internet which will show you what > bandwidth you can get with a given ms delay and % packet loss. > > As far as flow control, its really outside the scope. If you ever need flow > control, there is usually a specific reason like FCoE, and if not, it's > generally better to just fix the backplane congestion issue if you can, > than ever worry about using FC. The problem with FC isn't node to node, its > when you have node to node to node with additional devices, it isn't smart > enough to discriminate, and can crater your network 3 devices over when it > would be much better to just lose a few packets. > > -Blake In my experience - if you're traversing licenced microwave links as indicated flow control will definitely need to be ON. Check the radio modem stats to confirm but - if you're seeing lots of drops there you're overflowing the buffers on the radio modem.

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Re: TCP Performance
by Nick Olsen 27 Aug '13

27 Aug '13

Duplex mismatch has been checked across the board. On every device. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Chad Dailey" <nanog(a)thedaileyplanet.com> Sent: Tuesday, August 27, 2013 10:48 AM To: nick(a)flhsi.com Subject: Re: TCP Performance Check for duplex mismatch at the server. On Mon, Aug 26, 2013 at 2:07 PM, Nick Olsen <nick(a)flhsi.com> wrote: Greetings all, I've got an issue I was hoping to put a few more eyes on. Here's the scenario. Downloading a file at our Border is multiple orders of magnitude faster then a few hops out. Using the same 128MB test file, I tested at two different locations. As well as between them. Using multiple connections improves throughput, However it's the single stream issue we're looking at right now. All testing servers in question are Centos Linux. Orlando Datapath: Cogent>Orlando Border Router (Mikrotik)>HP Procurve Switch> Server Results: 2013-08-29 05:04:09 (52.6 MB/s) - `128mbfile.tgz' saved [127926272/127926272] Cocoa NOC Datapath: Cogent>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router (Mikrotik)>HP Procurve Switch>Server Results: 2013-08-26 13:42:25 (398 KB/s) - `128mbfile.tgz' saved [127926272/127926272] Orlando-Cocoa NOC Datapath: Orlando Server>HP Procurve Switch>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router(Mikrotik)>HP Procurve Switch>ServerResults: 2013-08-26 13:56:25 (3.31 MB/s) - `128mbfile.tgz' saved [134217728/134217728] Now, For the fun of it. I ran Iperf single TCP between our Cocoa and Orlando POP's. Just like the HTTP test above. (Server has a 100Mb/s port). It maxes out the port, Unlike the HTTP test. [root@ded01 ~]# iperf -c 208.90.219.18------------------------------------------------------------Cli ent connecting to 208.90.219.18, TCP port 5001TCP window size: 16.0 KByte (default)------------------------------------------------------------[ 3] local 206.208.56.130 port 47281 connected with 208.90.219.18 port 5001[ ID] Interval Transfer Bandwidth[ 3] 0.0-10.0 sec 114 MBytes 95.7 Mbits/sec Here's associated packet captures for each transfer. As well as full wget output and traceroutes for each test. As you can see, The tests crossing the wireless links show about 3x more TCP re-transmits/dup ACK's. But I'm not sure I'm sold this could show such a huge drop in throughput. Other then that, nothing really stands out to me as to why these transfers are so much slower. Intra-network iperf testing shows full throughput the whole way with single connection. As well as UDP testing. One thing to note is the Iperf testing has far less TCP re-transmit/dup acks then any of the HTTP testing, Crossing the same Microwave Links and routers. http://cdn.141networks.com/files/captures.zip I appreciate any insight anyone might have. Thanks! Nick Olsen Network Operations (855) FLSPEED x106

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Re: TCP Performance
by Nick Olsen 27 Aug '13

27 Aug '13

No QoS is in use anywhere.. To the best of my ability I've eliminated Packet loss. However, I've not found a way any better than ICMP/MTR/Ping -f..etc. The reason flow control has been mentioned is to correct buffer overflow at the Microwave links. Where they physically link at GigFDX. But the radio interface is only capable of ~360Mb/s, It's possible for the sending device to overflow the buffer between the fiber/ethernet and the radio interface.I can say we've had an issue like this in the past, Which forcing 100Mb/s FDX on a licensed radio fixed the problem. Being that, The ethernet was now slower then the radio interface. However, The down fall of this is that it limits the link to 100Mb/s which isn't sufficient anymore. In terms of congestion, There is not from my point of view. Every link in questions runs =>30% utilization. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Blake Dunlap" <ikiris(a)gmail.com> Sent: Tuesday, August 27, 2013 11:42 AM To: nick(a)flhsi.com Cc: nanog(a)thedaileyplanet.com, "nanog(a)nanog.org" <nanog(a)nanog.org> Subject: Re: TCP Performance This really sounds like you aren't testing the correct flow type in i/jperf, or you have some QoS queues for http traffic but not the perf traffic that are filled. Regardless, your problem looks like either tail drops or packet loss, which you showed originally. The task is to find out where this is occurring, and which of the two it is. If you want to confirm what is going on, there are some great bandwidth calculators on the internet which will show you what bandwidth you can get with a given ms delay and % packet loss. As far as flow control, its really outside the scope. If you ever need flow control, there is usually a specific reason like FCoE, and if not, it's generally better to just fix the backplane congestion issue if you can, than ever worry about using FC. The problem with FC isn't node to node, its when you have node to node to node with additional devices, it isn't smart enough to discriminate, and can crater your network 3 devices over when it would be much better to just lose a few packets. -Blake On Tue, Aug 27, 2013 at 9:49 AM, Nick Olsen <nick(a)flhsi.com> wrote: Duplex mismatch has been checked across the board. On every device. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Chad Dailey" <nanog(a)thedaileyplanet.com> Sent: Tuesday, August 27, 2013 10:48 AM To: nick(a)flhsi.com Subject: Re: TCP Performance Check for duplex mismatch at the server. On Mon, Aug 26, 2013 at 2:07 PM, Nick Olsen <nick(a)flhsi.com> wrote: Greetings all, I've got an issue I was hoping to put a few more eyes on. Here's the scenario. Downloading a file at our Border is multiple orders of magnitude faster then a few hops out. Using the same 128MB test file, I tested at two different locations. As well as between them. Using multiple connections improves throughput, However it's the single stream issue we're looking at right now. All testing servers in question are Centos Linux. Orlando Datapath: Cogent>Orlando Border Router (Mikrotik)>HP Procurve Switch> Server Results: 2013-08-29 05:04:09 (52.6 MB/s) - `128mbfile.tgz' saved [127926272/127926272] Cocoa NOC Datapath: Cogent>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router (Mikrotik)>HP Procurve Switch>Server Results: 2013-08-26 13:42:25 (398 KB/s) - `128mbfile.tgz' saved [127926272/127926272] Orlando-Cocoa NOC Datapath: Orlando Server>HP Procurve Switch>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router(Mikrotik)>HP Procurve Switch>ServerResults: 2013-08-26 13:56:25 (3.31 MB/s) - `128mbfile.tgz' saved [134217728/134217728] Now, For the fun of it. I ran Iperf single TCP between our Cocoa and Orlando POP's. Just like the HTTP test above. (Server has a 100Mb/s port). It maxes out the port, Unlike the HTTP test. [root@ded01 ~]# iperf -c 208.90.219.18------------------------------------------------------------Cli ent connecting to 208.90.219.18, TCP port 5001TCP window size: 16.0 KByte (default)------------------------------------------------------------[ 3] local 206.208.56.130 port 47281 connected with 208.90.219.18 port 5001[ ID] Interval Transfer Bandwidth[ 3] 0.0-10.0 sec 114 MBytes 95.7 Mbits/sec Here's associated packet captures for each transfer. As well as full wget output and traceroutes for each test. As you can see, The tests crossing the wireless links show about 3x more TCP re-transmits/dup ACK's. But I'm not sure I'm sold this could show such a huge drop in throughput. Other then that, nothing really stands out to me as to why these transfers are so much slower. Intra-network iperf testing shows full throughput the whole way with single connection. As well as UDP testing. One thing to note is the Iperf testing has far less TCP re-transmit/dup acks then any of the HTTP testing, Crossing the same Microwave Links and routers. http://cdn.141networks.com/files/captures.zip I appreciate any insight anyone might have. Thanks! Nick Olsen Network Operations (855) FLSPEED x106

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Anyone from Bluehost?
by Robert Glover 27 Aug '13

27 Aug '13

Hello, Can someone from Bluehost please contact me? Email blacklist issue. We have gone through the normal support channels, but have come up with the support staff @ Bluehost not understanding the nature of our request. Thanks, -Bobby

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Re: TCP Performance
by Nick Olsen 27 Aug '13

27 Aug '13

I have done a decent amount of reading on both TCP windowing and Flow Control. But I've seen a lot of conflicting data. Some say flow control breaks more then it fixes. Where some say it's completely required. Currently we do not have Flow control enabled. Our routers do not support flow control currently (At least, Not at a configurable level, maybe at the NIC hardware wise). The only way we could currently implement flow control would be installing a manged switch (with flow control) between the router(s) and the Microwave links. Regarding packet loss. We once again have conflicting data. If you take a look at the packet captures. The file download in Orlando (Which rocks ~800Mb/) shows ~5K retransmits/Dup Acks. However the file download in Cocoa (Crossing the wireless) is about 3x that (~16K retransmits/dup acks). The same is shown on an intra-network test from server to server.. But only when HTTP. Iperf testing shows ~18 errors, Vs ~13K errors when HTTP based. Nick Olsen Network Operations (855) FLSPEED x106 ---------------------------------------- From: "Blake Dunlap" <ikiris(a)gmail.com> Sent: Tuesday, August 27, 2013 10:32 AM To: nick(a)flhsi.com Cc: "nanog(a)nanog.org" <nanog(a)nanog.org> Subject: Re: TCP Performance You didn't indicate this, but do you understand how TCP windowing works? This conversation can go two very different ways depending on the answer. To me, it looks like this is what you'd expect, and you need to fix your packet loss issues, which possibly might be QoS settings related (but it's hard to tell based on the information given). -Blake On Mon, Aug 26, 2013 at 2:07 PM, Nick Olsen <nick(a)flhsi.com> wrote: Greetings all, I've got an issue I was hoping to put a few more eyes on. Here's the scenario. Downloading a file at our Border is multiple orders of magnitude faster then a few hops out. Using the same 128MB test file, I tested at two different locations. As well as between them. Using multiple connections improves throughput, However it's the single stream issue we're looking at right now. All testing servers in question are Centos Linux. Orlando Datapath: Cogent>Orlando Border Router (Mikrotik)>HP Procurve Switch> Server Results: 2013-08-29 05:04:09 (52.6 MB/s) - `128mbfile.tgz' saved [127926272/127926272] Cocoa NOC Datapath: Cogent>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router (Mikrotik)>HP Procurve Switch>Server Results: 2013-08-26 13:42:25 (398 KB/s) - `128mbfile.tgz' saved [127926272/127926272] Orlando-Cocoa NOC Datapath: Orlando Server>HP Procurve Switch>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router(Mikrotik)>HP Procurve Switch>ServerResults: 2013-08-26 13:56:25 (3.31 MB/s) - `128mbfile.tgz' saved [134217728/134217728] Now, For the fun of it. I ran Iperf single TCP between our Cocoa and Orlando POP's. Just like the HTTP test above. (Server has a 100Mb/s port). It maxes out the port, Unlike the HTTP test. [root@ded01 ~]# iperf -c 208.90.219.18------------------------------------------------------------Cli ent connecting to 208.90.219.18, TCP port 5001TCP window size: 16.0 KByte (default)------------------------------------------------------------[ 3] local 206.208.56.130 port 47281 connected with 208.90.219.18 port 5001[ ID] Interval Transfer Bandwidth[ 3] 0.0-10.0 sec 114 MBytes 95.7 Mbits/sec Here's associated packet captures for each transfer. As well as full wget output and traceroutes for each test. As you can see, The tests crossing the wireless links show about 3x more TCP re-transmits/dup ACK's. But I'm not sure I'm sold this could show such a huge drop in throughput. Other then that, nothing really stands out to me as to why these transfers are so much slower. Intra-network iperf testing shows full throughput the whole way with single connection. As well as UDP testing. One thing to note is the Iperf testing has far less TCP re-transmit/dup acks then any of the HTTP testing, Crossing the same Microwave Links and routers. http://cdn.141networks.com/files/captures.zip I appreciate any insight anyone might have. Thanks! Nick Olsen Network Operations (855) FLSPEED x106

1 0

TCP Performance
by Nick Olsen 27 Aug '13

27 Aug '13

Greetings all, I've got an issue I was hoping to put a few more eyes on. Here's the scenario. Downloading a file at our Border is multiple orders of magnitude faster then a few hops out. Using the same 128MB test file, I tested at two different locations. As well as between them. Using multiple connections improves throughput, However it's the single stream issue we're looking at right now. All testing servers in question are Centos Linux. Orlando Datapath: Cogent>Orlando Border Router (Mikrotik)>HP Procurve Switch> Server Results: 2013-08-29 05:04:09 (52.6 MB/s) - `128mbfile.tgz' saved [127926272/127926272] Cocoa NOC Datapath: Cogent>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router (Mikrotik)>HP Procurve Switch>Server Results: 2013-08-26 13:42:25 (398 KB/s) - `128mbfile.tgz' saved [127926272/127926272] Orlando-Cocoa NOC Datapath: Orlando Server>HP Procurve Switch>Orlando Border Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>East Orange Router (Mikrotik)> Licensed Microwave Link (300+Mb/s Capacity)>Cocoa Router (Mikrotik)>Licensed Microwave Link (300+Mb/s Capacity)>Colo Router (Mikrotik)>NOC Router(Mikrotik)>HP Procurve Switch>ServerResults: 2013-08-26 13:56:25 (3.31 MB/s) - `128mbfile.tgz' saved [134217728/134217728] Now, For the fun of it. I ran Iperf single TCP between our Cocoa and Orlando POP's. Just like the HTTP test above. (Server has a 100Mb/s port). It maxes out the port, Unlike the HTTP test. [root@ded01 ~]# iperf -c 208.90.219.18------------------------------------------------------------Cli ent connecting to 208.90.219.18, TCP port 5001TCP window size: 16.0 KByte (default)------------------------------------------------------------[ 3] local 206.208.56.130 port 47281 connected with 208.90.219.18 port 5001[ ID] Interval Transfer Bandwidth[ 3] 0.0-10.0 sec 114 MBytes 95.7 Mbits/sec Here's associated packet captures for each transfer. As well as full wget output and traceroutes for each test. As you can see, The tests crossing the wireless links show about 3x more TCP re-transmits/dup ACK's. But I'm not sure I'm sold this could show such a huge drop in throughput. Other then that, nothing really stands out to me as to why these transfers are so much slower. Intra-network iperf testing shows full throughput the whole way with single connection. As well as UDP testing. One thing to note is the Iperf testing has far less TCP re-transmit/dup acks then any of the HTTP testing, Crossing the same Microwave Links and routers. http://cdn.141networks.com/files/captures.zip I appreciate any insight anyone might have. Thanks! Nick Olsen Network Operations (855) FLSPEED x106

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