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Nexus 5548UP to give away
by Michael Righter 19 Nov '15

19 Nov '15

Hi there Is someone interested in Cisco Nexus 5548UP (We have 4 used pieces)?? Plz send me an offer PN. thanks

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VoIP quality monitoring
by Stanislav Sinyagin 18 Nov '15

18 Nov '15

Greetings, Here's a short follow-up to yesterday's presentation of Zebbra guys. What Markus and Roland have presented, is an approach to monitoring the quality inside the box (CUCM in their case). But there are actually ways to monitor the quality outside of the box, and they have been around for a while. For example, I've seen a demonstration of Malden MultiDSLA tool over 10 years ago. At that time they only had the analog interface that emulated a handset, and two Malden boxes were sending an audio sample to each other and assessing the quality of received audio. The tool is quite expensive though. There are currently several commercial solutions for audio quality analysis: POLQA (expensive), recommended by ITU-T: it compares two audio files and produces the quality assessment score. Sevana AQuA (less expensive): it also compares two audio files and produces several quality metrics. I compared it with PESQ (predecessor of POLQA), and AQuA works significantly faster. It was very helpful in detecting lost RTP packets in the tests where I could not place a packet sniffer wherever I wanted. There are also various approaches to passive quality analysis, and some are documented in ITU-T P.563 and G.107. Sevana is also offering its PVQA tool that tries to detect packet loss and audio distortions by analyzing the input audio. I could not find any open-source tools which would help in quality analysis at the audio level. But there's plain old tshark which produces the loss and jitter statistics for RTP streams, and it's pretty efficient if you are able to capture the traffic at the receiving end. Also VoIP monitor provides the ability of G.107 analysis on captured data packets. Here's my detailed article on using Sevana AQuA: https://txlab.wordpress.com/2015/06/02/quality-assurance-for-voip-calls-2/ And here's my demo lab, and you have a possibility to send an audio recording for Sevana PVQA analysis: http://voxserv.ch/demolab.html cheers, -- Stanislav Sinyagin Senior Consultant, CCIE #5478 ssinyagin(a)k-open.com +41 79 407 0224

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Mikrotik SFP no link
by Andre Timmermann 17 Nov '15

17 Nov '15

Hello, I recently bought a Mikrotik CR1009-8G-1S-1S+. I added a Mikrotik S -31DLC20D SFP module to connect my internet uplink. The uplink provider confirmed that the uplink should be working with wavelength 1310 nm, single mode, 1GBit, no auto negotiation. Unfortunately the webinterface shows "no link". Firmware is 6.33 and I rebooted the device - still no link. Please note that I do NOT get a value for sfp-rx-power in the webinterface or the following dump. Is that a hint that the fiber is not OK or is that conclusion invalid? /interface ethernet monitor 9 name: sfp1 status: no-link auto-negotiation: disabled sfp-module-present: yes sfp-rx-lose: yes sfp-tx-fault: no sfp-type: SFP-or-SFP+ sfp-connector-type: LC sfp-link-length-9um: 20000m sfp-link-length-50um: 550m sfp-link-length-62um: 550m sfp-vendor-name: Mikrotik sfp-vendor-part-number: S-31DLC20D sfp-vendor-revision: A0 sfp-vendor-serial: MT50617H2074 sfp-manufacturing-date: 15-06-24 sfp-wavelength: 1310nm sfp-temperature: 50C sfp-supply-voltage: 3.237V sfp-tx-bias-current: 21mA sfp-tx-power: -7.055dBm Best regards, Andre

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SwiNOG-BE150 - (Fondue-)Beer Event 150 @ Walliser Keller / ZH
by Steven Glogger 11 Nov '15

11 Nov '15

Dear SwiNOGers, This is my last, regulary organized Beer Event :-/ But good news: Emanuel & Aarno will take over the organization of the 2016+ events ,-) Thank you! For my "last" event I've organized 20 places for Fondue/racelette. The menu will be fixed: Entry: Assiette Valaisanne Main Course: Fondue or Racelette Dessert: Sorbet of apricot Please indicate what you prefer (Fondue/Racelette). Be aware: 20 seats are fix reserved. First come first served. Details for the next event: ----------------------------------------------- Event: SwiNOG-BE150 - Beer Event 150 When? Monday, 14th December 2015 18:30 Where? Walliser Keller Zähringerstrasse 24, 8001 Zürich http://www.walliser-keller.ch/ (GoogleMaps Link: http://goo.gl/maps/kx3ad) Places avaiable? 20! !! Please sign up if you're really coming - because the seats are limited! !! ----------------------------------------------- Registration: Start: Wednesday, 11th November 2015 - 12:00 Stop: Wednesday, 9th December 2015 - 12:00 Reg-URL: http://swinog.be/ ----------------------------------------------- Since we have to make reservations, I need to know who's coming and who not. If you can't attend and you're registered please inform me ASAP (+41 79 277 92 35). greetings -steven

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looking for a sinmple telephony monitoring tool
by Amann Hans-Peter 06 Nov '15

06 Nov '15

Hello, We are looking for a tool that permits to check the behavior of a telephony system at the level of the end user. The idea is to launch telephone calls at regular intervals one system, to pass through the public network and to check on the PABX system under test (Siemens HiPath 4000 with Trade-Boards) that the voice call arrives (signaling path) and can be established (voice path). Our problem today is that we can check plenty of internal interfaces and links, but we do not known if all the higher level protocols behave well. Thanks for your ideas ! Hans-Peter Amann Etat de Neuchâtel Hans-Peter.amann(a)ne.ch

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SwiNOG #29 is day after tomorrow
by Simon Ryf 03 Nov '15

03 Nov '15

Dear Participants and Speakers Please find general information about the SwiNOG #29 meeting below. Date: 05.11.2015 - Registration 08h15 - 09h15 Location: Gurtenpark, Bern. NEW Location: it's now closer to the station. Follow the signs. >From Bern main station you may take: - S-Bahn S3 Belp and exit at Wabern station - Tram 9 (Wabern) and exit at Gurtenbahn stop (http://www.bernmobil.ch/file/pdf_fahrplaene/141214/L9/ah_01009L_j15_B_00001 _3.pdf?_=1446578381) ==> Then take the Gurtenbahn to the Gurtenpark. You DO NOT have to pay a fee, just tell you attend to the SwiNOG event. Don't throw away the ticket - you'll need it to get down. Map (Ground Station of the cable rail): https://goo.gl/maps/5uSKtgbianM2 Suggested trains from Geneva: 06h14 Zurich: 07h02 WIRELESS ACCESS During the meeting you have access to free WLAN! - SSID: MOBILE - Credentials will be printed on your badge - YOU are responsible for the security of your data, this WLAN is not encrypted! Many thanks to our sponsors! Juniper, Brocade, Cisco See you at SwiNOG #29! Simon Ryf SwiNOG Organisation

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Bluewin MX Protocol Errors
by Daniel Kamm 03 Nov '15

03 Nov '15

Do any other also got troubles in messaging @bluewin.ch customers? Nov 2 14:32:54 postfix/smtp[8102]: <XXXX>: to=<XXXXX(a)bluewin.ch>, relay=mxbw.lb.bluewin.ch[195.186.99.50]:25, delay=0.07, delays=0/0/0.03/0.03, dsn=5.5.0, status=bounced (Protocol error: host mxbw.lb.bluewin.ch[195.186.99.50] said: 250 2.0.0 RCPT TO accepted (in reply to DATA command)) TIA - Dan

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SwiNOG-BE149 - Beer Event 149 @ Outback Lodge / ZH
by Steven Glogger 28 Oct '15

28 Oct '15

Dear SwiNOGers, So, 2nd last Beer event in Zurich ,-) Remember, that I will not organize any beer events anymore for 2016 - so any volunteers rise your hands ,-) Dezember will be the last one (fondue!) Details for the next event: ----------------------------------------------- Event: SwiNOG-BE149 - Beer Event 149 When? Monday, 2nd November 2015 18:30 Where? Outback Lodge Stadelhoferstrasse 18, 8001 Zürich  http://www.outback-lodge.ch/outback-lodge-z%C3%BCrich.html (GoogleMaps Link: http://goo.gl/maps/fGTpM) !! Please sign up if you're really coming - because the seats are limited! !! ----------------------------------------------- Registration: Start: Wednesday, 28th October 2015 - 13:25 Stop: Monday, 2nd November 2015 - 10:00 Reg-URL: http://swinog.be/ ----------------------------------------------- Since we have to make reservations, I need to know who's coming and who not. If you can't attend and you're registered please inform me ASAP (+41 79 277 92 35). greetings -steven

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REMINDER - SwiNOG #29 (Nov 5th) - Reg Open
by Roman Hochuli 26 Oct '15

26 Oct '15

Hello All Just a quick reminder: SwiNOG #29 will take place *next week* at Bern. If you did not yet registred it may be a good moment to go ahead and do so. Have a look our agenda here: http://www.swinog.ch/meetings/swinog29/agenda.asp All other details and registration can be found at the usual places here: http://www.swinog.ch/meetings/swinog29/index.asp -- SwiNOG Organisation Roman Hochuli Board Member

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Nexthink is looking for an IT Engineer
by Antoine Benkemoun-André 14 Oct '15

14 Oct '15

Hello, If one of you happens to be looking for a job or knows of someone looking for a job, my company is looking for an IT Engineer to be a part of the same team as I. You will find the job offer at the following URL : http://www-nexthink.s3.amazonaws.com/open_position/Nexthink-IT-Engineer-201… <http://www-nexthink.s3.amazonaws.com/open_position/Nexthink-IT-Engineer-201…> We’re basically looking for someone to be part of a multi-disciplinary IT team. The company is growing very fast and in consequence faces a number of quite exciting challenges. In the two years I’ve been around, our virtual infrastructure has doubled, the number of employees has doubled and our network has grown by around a factor of 10. We have a lot of work making everything work elegantly together while finding the most elegant ways of scaling. If you have any questions, don’t hesitate to contact me. Have a nice evening, Antoine

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