RE: B5-Lite

2016-05-13 Thread Eric C. Miller
B5c is the only product that I've had much success with from Mimosa. The B5Lite is a cheap plastic shell and, and it performs like it too. If you have UBNT gear now, Mimosa is a good next step, but I'd strongly recommend that you stear away from the lite and go with the B5c. We use them with

Re: B5-Lite

2016-05-13 Thread Faisal Imtiaz
Best place to ask this question would be the WISPA list (public one or Member's list). Plus you can ask ask this question on Facebook, WISPA Pictures or Mimosa Group ! Lots of good info there. Like all fixed wireless, in unlicensed freq...there are if's and's or but's Depending on your

B5-Lite

2016-05-13 Thread Jared Mauch
Anyone deployed this radio in production in the US? I’m curious to hear from people who are using it, looking at replacing some UBNT hardware with it on some PTP links, going from the M-series class devices to something more modern. Thanks, - Jared

Re: NIST NTP servers

2016-05-13 Thread Mel Beckman
"Either method needs the specs" should read "Either method meets the specs." -mel beckman > On May 13, 2016, at 1:39 PM, Mel Beckman wrote: > > Lamar, > > Because you need microsecond-level time accuracy (which is beyond NTP's > capabilities) you'll requires an adjunct

Re: Cost-effectivenesss of highly-accurate clocks for NTP

2016-05-13 Thread Baldur Norddahl
Den 13. maj 2016 21.40 skrev "Eric S. Raymond" : > Traditionally dedicated time-source hardware like rubidium-oscillator > GPSDOs is sold on accuracy, but for WAN time service their real draw > is long holdover time with lower frequency drift that you get from the > cheap,

Re: NIST NTP servers

2016-05-13 Thread Mel Beckman
Lamar, Because you need microsecond-level time accuracy (which is beyond NTP's capabilities) you'll requires an adjunct protocol, such as PPS, to get that. For continued NTP delivery despite periodic GPS signal loss, then you need an OCXO internal clock. But anyone satisfied with NTP's

Cost-effectivenesss of highly-accurate clocks for NTP

2016-05-13 Thread Eric S. Raymond
Mel Beckman : >Finally, do you want to weigh in on the necessity for highly accurate local RT >clocks in NTP servers? That seems to be the big bugaboo in cost limiting right >now. Yes, this is a topic on which I have some well-developed judgments due to having collected (and,

[NANOG-announce] NOTR - Thank you Denver, CO and Announcing NYC

2016-05-13 Thread Valerie Wittkop
We extend a very big Thank You to Denver, CO for such a successful NOTR event on Tuesday. Great presentations and a large crowd made the day great for everyone! We are very excited to be holding the next NOTR event in New York City NOTR event in N

Weekly Routing Table Report

2016-05-13 Thread Routing Analysis Role Account
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG. Daily listings are sent to

Re: A briefing on NTPsec

2016-05-13 Thread Eric S. Raymond
Mel Beckman : > Does your project have anything like a portable regression test > suite that the rest of us could use for NTP product evaluations? We do not, yet. Testing NTP at above the level of unit tests for individual functions is *quite* difficult - I say that as the

Re: NIST NTP servers

2016-05-13 Thread Lamar Owen
On 05/13/2016 10:38 AM, Mel Beckman wrote: You make it sound like TXCOs are rare, but they're actually quite common in most single board computers. True, you're probably not gonna find them in the $35 cellular-based SBCs, but since these temperature compensated oscillators cost less than a

Re: A briefing on NTPsec

2016-05-13 Thread Mel Beckman
Eric, Thanks for this really helpful insider look into NTPsec. Does your project have anything like a portable regression test suite that the rest of us could use for NTP product evaluations? And what I be correct in guessing that all of your work is foss? When you say that nothing has been

Re: NIST NTP servers

2016-05-13 Thread Sharon Goldberg
Since we are on the subject, I would strongly recommend that you don't run NTP on Linux 2.2.13, since its especially vulnerable to our IPv4 fragmentation attack. "SunOS" also seems vulnerable, but I am not 100% sure what systems that say they are "SunOS" actually are. These OS will fragment

Re: NIST NTP servers

2016-05-13 Thread Chuck Anderson
On Fri, May 13, 2016 at 10:12:49AM -0400, Lamar Owen wrote: > On 05/11/2016 09:46 PM, Josh Reynolds wrote: > >maybe try [setting up an NTP server] with an odroid? > > > ... > > I have several ODroid C2's, and the first thing to note about them > is that there is no RTC at all. Also, the

Re: NIST NTP servers

2016-05-13 Thread Laszlo Hanyecz
On 2016-05-13 14:12, Lamar Owen wrote: On 05/11/2016 09:46 PM, Josh Reynolds wrote: maybe try [setting up an NTP server] with an odroid? ... You really have to have at least a temperature compensated quartz crystal oscillator (TCXO) to even begin to think about an NTP server, for

Re: NIST NTP servers

2016-05-13 Thread Mel Beckman
Lamar, You make it sound like TXCOs are rare, but they're actually quite common in most single board computers. True, you're probably not gonna find them in the $35 cellular-based SBCs, but since these temperature compensated oscillators cost less than a dollar each in quantity, they're quite

Re: NIST NTP servers

2016-05-13 Thread Lamar Owen
On 05/11/2016 09:46 PM, Josh Reynolds wrote: maybe try [setting up an NTP server] with an odroid? ... I have several ODroid C2's, and the first thing to note about them is that there is no RTC at all. Also, the oscillator is just a garden-variety non-temperature-compensated quartz crystal,

Re: Internet DATA Center IP base utilization/Bandwidth Billing

2016-05-13 Thread Hari Haran
Hi Software name ntop On Thursday 12 May 2016, sathish kumar Ippani < sathish.kumar.ipp...@gmail.com> wrote: > Hello All, > > We are looking for software/hardware which can monitor bandwidth usage of > each IP address that enters Data center/Leave data center. > > Based on Bandwidth usage it

A briefing on NTPsec

2016-05-13 Thread Eric S. Raymond
Jay Ashworth informs me that NTP security and risks has recently been a hot topic on NANOG, and that NTPsec was mentioned. Therefore I've written a bit of a background briefing on the project, which follows. The NTPsec project was initially funded in late 2014 by NSF when authorities there

A briefing on NTPsec

2016-05-13 Thread Eric S. Raymond
Jay Ashworth informs me that NTP security and risks has recently been a hot topic on NANOG, and that NTPsec was mentioned. Therefore I've written a bit of a background briefing on the project, which follows. The NTPsec project was initially funded in late 2014 by NSF when authorities there

Re: Internet DATA Center IP base utilization/Bandwidth Billing

2016-05-13 Thread Dan White
We use Calix Flow Analyze. On 05/12/16 18:51 +0530, sathish kumar Ippani wrote: Hello All, We are looking for software/hardware which can monitor bandwidth usage of each IP address that enters Data center/Leave data center. Based on Bandwidth usage it will draw a graph or calculate Billing.

Re: NIST NTP servers

2016-05-13 Thread Tony Finch
Jean-Francois Mezei wrote: > > Today, if someone were to jam the GPS signal in an areas in USA, you'd > likely hear about large number of car accidents in the news before > noticing your systems canMt get time from the GPS-NTP and went to a > backup ip address (nist