Re: Service Provider NetFlow Collectors

I’m still using nfsen/nfdump Been looking at manageengine netflow analyzer lately and liking it, we might be buying some time on Calix flowanalyze which might be an improved version of xangati Aaron > On Dec 30, 2018, at 10:44 PM, Michael Gehrmann > wrote: > > > Add Flowtraq to your list.

Re: Service Provider NetFlow Collectors

Add Flowtraq to your list. Cheers Mike On Mon, 31 Dec 2018 at 14:30, Erik Sundberg wrote: > Hi Nanog…. > > > > We are looking at replacing our Netflow collector. I am wonder what other > service providers are using to collect netflow data off their Core and Edge > Routers. Pros/Cons… What to w

Service Provider NetFlow Collectors

Hi Nanog We are looking at replacing our Netflow collector. I am wonder what other service providers are using to collect netflow data off their Core and Edge Routers. Pros/Cons... What to watch out for any info would help. We are mainly looking to analyze the netflow data. Bonus if it does

Re: CenturyLink

Yo Saku! On Sun, 30 Dec 2018 19:29:37 +0200 Saku Ytti wrote: > I've always wondered what > niche rubidium covers that isn't handled by much cheaper crystal ovens > or actually precise oscillators. The Rb frequency reference will be two or three orders of magnitude more stable than an expensive

Re: CenturyLink

On Sun, 30 Dec 2018 at 20:04, Matthew Huff wrote: > Regulatory. > If we were to lose the GPS signal (antenna failure, etc...) then our stratum > 1 time sources wouldn't drift as much and as quickly. For telco and general > usage, the cost may not be worthwhile, but when you have auditors looki

RE: CenturyLink

Regulatory. If we were to lose the GPS signal (antenna failure, etc...) then our stratum 1 time sources wouldn't drift as much and as quickly. For telco and general usage, the cost may not be worthwhile, but when you have auditors looking over your shoulder Matthew Huff |

Re: CenturyLink

We have a few s600’s deployed as well, rock solid and van handle 10k+ queries a second. ns Sent from my iPhone On Dec 30, 2018, at 11:22 AM, Matthew Huff mailto:mh...@ox.com>> wrote: We use an older model of https://www.microsemi.com/product-directory/enterprise-network-time-servers/4117-

Re: CenturyLink

Hey Matthew, > We use an older model of > https://www.microsemi.com/product-directory/enterprise-network-time-servers/4117-syncserver-s600 > with rubidium oscillator. Not cheap, but hardened and extremely accurate. Out of interest why rubidium? For short term stability oscillator choice isn't m

RE: CenturyLink

We use an older model of https://www.microsemi.com/product-directory/enterprise-network-time-servers/4117-syncserver-s600 with rubidium oscillator. Not cheap, but hardened and extremely accurate. Matthew Huff | 1 Manhattanville Rd Director of Operations | Purchase, NY 10577 OT

Re: CenturyLink RCA?

Hey John, Your criticism is warranted, but would also be addressed by explanation DCN/OOB being the source of the problem. At any rate, I am looking forward to stop speculating and start reading post-mortem written by someone who knows how networks work. On Sun, 30 Dec 2018 at 18:28, John Von Es

Re: CenturyLink

We have had great success with the TimeMachines TM1001A. Simple, robust, and over several years we’ve had zero outages on more than 40 installations. And unlike most of the competition, not ridiculously overpriced. https://timemachinescorp.com/product/gps-time-server-tm1000a

Re: CenturyLink RCA?

One thing that is troubling when reading that URL is that it appears several steps of restoration required teams to go onsite for local login, etc.,. Granted, to troubleshoot hardware you need to be physically present to pop a line card in and out, but CTL/LVL3 should have full out-of-band cons

Re: CenturyLink RCA?

It's technical enough so that laypeople immediately lose interest, yet completely useless to anyone that works with this stuff. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "Saku Ytti"

Re: CenturyLink

Speaking of GPS-enabled NTP appliances, etc. wondering what hardware people are using for this. thanks -Original Message- From: "Raymond Burkholder" Sent: Saturday, December 29, 2018 12:01pm To: "Matthew Huff" , "l...@satchell.net" , "nanog@nanog.org" Subject: Re: CenturyLink O

CenturyLink RCA?

Apologies for the URL, I do not know official source and I do not share the URLs sentiment. https://fuckingcenturylink.com/ Can someone translate this to IP engineer? What did actually happen? >From my own history, I rarely recognise the problem I fixed from reading the public RCA. I hope CenturyL

RE: CenturyLink

Actually, on all our trading systems, our times are synced via PTP instead of ntpd for at least 50 microsecond accuracy. The stratum 1 clocks as well as NIST time are only used as comparison to verify compliance and reality. We use ntpq to determine the offset from NIST for reporting. Mat