February 2022 - Network-metrics

Re: Outage during reroute in Nordunet on Feb 14 2022

by Carsten Pettersson

Hi Otto, I have tweaked a little on our ISIS links to/from our routers in ASIA. Hopefully it will help in future cases. I have a little problem understanding what other problems you have been observing and or what you would be expecting to see in case of errors in network and time for network to converge.. could you please help me understand your microdep graphs etc. Thanks.. -- Carsten Pettersson Senior IP Network Engineer carsten(a)nordu.net | mobile: +45 3118 7401 > On 15 Feb 2022, at 16.22, Otto J Wittner <otto.wittner(a)sikt.no> wrote: > > Hi, Nordunet NOC! > > While browsing yesterdays (2022-02-14) events discovered by our https://microdep.uninett.no end-to-end monitoring tool, we observe a collection of "routechange-events" with associated connection downtimes ("Lost") in Nordunet: > > ## trondheim-mp to adelaide-mp > https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/… > > Day Time Lost(s) Queue(ms) > 14 14:01 0.1 0.2 > 14 14:22 26.9 0.3 > 14 14:25 0.1 0.2 > > ## trondheim-mp to auckland-mp > https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/… > > Day Time Lost(s) Queue(ms) > 14 10:23 2.4 0.2 > > (Also observable on trondheim-mp to saopaulo-mp: https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/…) > > > ## trondheim-mp to zurich-mp > https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/… > > Day Time Lost(s) Queue(ms) > 14 17:27 0.6 0.1 > > > 26.9, 2.4 and 0.6 second outages... can something perhaps be further optimized? > > BR > O2 > > -- > Otto J Wittner tel +47 99550566 > Sikt http://sikt.no

3 years

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Outage during reroute in Nordunet on Feb 14 2022

by Otto Wittner (Uninett)

Hi, Nordunet NOC! While browsing yesterdays (2022-02-14) events discovered by our https://microdep.uninett.no end-to-end monitoring tool, we observe a collection of "routechange-events" with associated connection downtimes ("Lost") in Nordunet: ## trondheim-mp to adelaide-mp https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/… Day Time Lost(s) Queue(ms) 14 14:01 0.1 0.2 14 14:22 26.9 0.3 14 14:25 0.1 0.2 ## trondheim-mp to auckland-mp https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/… Day Time Lost(s) Queue(ms) 14 10:23 2.4 0.2 (Also observable on trondheim-mp to saopaulo-mp: https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/…) ## trondheim-mp to zurich-mp https://microdep.uninett.no/tracetree.html?topo=/dragonlab/mp/trondheim-mp/… Day Time Lost(s) Queue(ms) 14 17:27 0.6 0.1 26.9, 2.4 and 0.6 second outages... can something perhaps be further optimized? BR O2 -- Otto J Wittner tel +47 99550566 Sikt http://sikt.no -- Otto J Wittner tel +47 99550566 Uninett AS http://uninett.no (Uninett AS er under avvikling, og 1. januar 2022 blir vi en del av Sikt - Kunnskapssektorens tjenesteleverandør.)

3 years

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Fwd: Microdep - weekly reports

by Otto Wittner (Uninett)

Hi, all, The message below seem to have gotten stuck due to my new email-address. O2 -------- Forwarded Message -------- Subject: Microdep - weekly reports Date: Fri, 4 Feb 2022 17:37:53 +0100 From: Otto J Wittner <otto.wittner(a)sikt.no> To: network-metrics(a)lists.nordu.net Dear all, Sikt (Uninett's new name) have now improved the Microdep system somewhat and will try to provide some weekly reports with example observations made with the system. Attached is a first example for week 4. All feedbacked is welcome. Have a wonderful weekend. BR O2 -- Otto J Wittner, Senioringeniør (PhD) https://sikt.no mob: +47 99550566

3 years, 1 month

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Network-metrics February 2022