Re: [AFMUG] Best Way to implement dual stack IPv4/6

Yep, that is the recommended way to do things .. for good reasons ... http://mum.mikrotik.com/presentations/PL12/maia.pdf Another great presentation, enven though it is Mikrotik Centric.. but the core issues apply across the board. Regards Faisal Imtiaz Snappy Internet & Telecom 7266 SW

Re: [AFMUG] 24V PoE WiFi router?

You can turn pretty much any router into POE. You just need an adapter that splits out the 24 VDC, and feeds straight ethernet to the router. We did this for a couple of years with a vanilla Linksys WRT54G. bp On 1/15/2017 9:38 PM, Jeremy Grip wrote: For an

Re: [AFMUG] 24V PoE WiFi router?

All of the AR-HP we have are POE powered. Maybe someone else can chime in, we haven't ordered any recently as we have more than we can use still. We are mainly deploying AirGatway pro's for small apartments. I really wish they made them with an external antenna! On Sun, Jan 15, 2017 at 9:21 PM,

Re: [AFMUG] 24V PoE WiFi router?

Wait a minute-looks like only the Argentinian AR-HP is 24V, otherwise it's 5V, no? Sent from my iPhone > On Jan 16, 2017, at 1:21 AM, Jeremy Grip wrote: > > Thought the earlier AirRouter APs came with the PoE variant, and later ones > with the power brick and barrel

Re: [AFMUG] 24V PoE WiFi router?

Thought the earlier AirRouter APs came with the PoE variant, and later ones with the power brick and barrel connector. Or is it the other way around? Sent from my iPhone > On Jan 16, 2017, at 1:06 AM, David wrote: > > How about a AirGateway-LR, a air router, or a mikrotik

Re: [AFMUG] 24V PoE WiFi router?

How about a AirGateway-LR, a air router, or a mikrotik WAP? All of these can be powered by 24V POE. https://dl.ubnt.com/datasheets/airgateway/airGateway_DS.pdf https://dl.ubnt.com/datasheets/airrouter/airRouter_Datasheet.pdf https://routerboard.com/RB952Ui-5ac2nD

[AFMUG] 24V PoE WiFi router?

For an off-grid hybrid residential customer and relay micro-POP, looking for a good WiFi router (min. b/g/n) that accepts 24V PoE in, max .75amp, to be fed by Netonix switch. Also 4 or 5 port gigabit switch to take same power--I think the Mikrotik RB260GS or GSP would work for this. Anybody

Re: [AFMUG] Best Way to implement dual stack IPv4/6

We "allocate" a /64 to each PtP link, but actually use a /126 (or /127) mask so packets addressed to the remainder of the /64 simply get dropped because there is no route in the table.

Re: [AFMUG] Best Way to implement dual stack IPv4/6

Going through this myself. Will post results when it's finished if I'm not dust by then. AT taking 6 months just to get THEIR end together. Chris Wright Network Administrator From: Af on behalf of Chuck McCown

Re: [AFMUG] Direct attach sfp cables?

The ones I've used are thinner than ToughCable, probably thinner than the cat6 I used in my house. Maybe not much thicker than a sturdy USB cord. - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From:

Re: [AFMUG] Direct attach sfp cables?

They are also thicker than the cat6a I had, with less flexibility :( On Jan 15, 2017 8:00 PM, "Josh Baird" wrote: > Maybe you need better cable management or you are using super thick DACs? > They are obviously going to be thicker than individual strands of fiber. > > We

Re: [AFMUG] Direct attach sfp cables?

Maybe you need better cable management or you are using super thick DACs? They are obviously going to be thicker than individual strands of fiber. We regularly terminate 2 racks of dual homed servers in one cabinet using nothing but DACs. > On Jan 15, 2017, at 8:48 PM, Josh Reynolds

Re: [AFMUG] Direct attach sfp cables?

Most inter and intra rack environments don't care about electrical isolation. I haven't installed hundreds in one spot, so I can't comment on that. However, where we have a few, they don't seem significantly different than fiber to manage. - Mike Hammett Intelligent Computing

Re: [AFMUG] Direct attach sfp cables?

Yes they are cheap, but they have less of a bend radius than modern fiber, they don't provide electrical isolation, and they are an absolute bitch when it comes to cable management. I thought it would be a great idea to put a couple hundred DAC'd ports in a rack. Terrible idea. Never again. DACs

Re: [AFMUG] Direct attach sfp cables?

On 1/15/17 5:02 PM, Jason McKemie wrote: What's the purpose? Seems like it would pretty much always be better to just use fiber... Super cost effective way to connect a rack full of servers to a TOR 10G switch. ~Seth

Re: [AFMUG] Direct attach sfp cables?

They are great for intra/inter rack connectivity as well for cabling servers to 10Gbps TOR switches (which is what we mainly use them for, having 500+ in service for this purpose). Out of the 500+ we have in our datacenters, we have seen a very small number of failures that I am aware of. The

Re: [AFMUG] Direct attach sfp cables?

Oh, right. I wouldn't really use them at a tower site where you want electrical isolation. Within a rack or two is great, though. - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From: "George Skorup"

Re: [AFMUG] Direct attach sfp cables?

I haven't used DACs, but just looking at the cost seems logical for intra or inter-rack x-connect. 10G-SR modules from FiberStore run $16/ea. Or if you want to stay single-mode, a 2km 10G module is $34. All the while, 0.5-3m 10G DACs are $10-15 and that's all you need to link up two SFP+ slots

Re: [AFMUG] Direct attach sfp cables?

That sounds like a particularly bad application for them. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Jon Langeler Sent: Sunday, January 15, 2017 7:21 PM To: af@afmug.com Subject: Re: [AFMUG] Direct attach sfp cables? Planning on fiber. Was just curious if it would work on an FM

Re: [AFMUG] Direct attach sfp cables?

Absolutely. Zero interference. From: Jon Langeler Sent: Sunday, January 15, 2017 6:20 PM To: af@afmug.com Subject: Re: [AFMUG] Direct attach sfp cables? Planning on fiber. Was just curious if it would work on an FM tower. Jon Langeler Michwave Technologies, Inc. On Jan 15, 2017, at 8:02

Re: [AFMUG] Direct attach sfp cables?

Planning on fiber. Was just curious if it would work on an FM tower. Jon Langeler Michwave Technologies, Inc. > On Jan 15, 2017, at 8:02 PM, Jason McKemie > wrote: > > What's the purpose? Seems like it would pretty much always be better to just > use

Re: [AFMUG] Direct attach sfp cables?

Much cheaper. - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From: "Jason McKemie" To: af@afmug.com Sent: Sunday, January 15, 2017 7:02:15 PM Subject: Re: [AFMUG]

Re: [AFMUG] Direct attach sfp cables?

Well, it is essentially a NRZ on off keying of the shower (1 Gbps) speeds. I presume Gig is the slowest they go. -Original Message- From: Jon Langeler Sent: Sunday, January 15, 2017 3:59 PM To: af@afmug.com Subject: [AFMUG] Direct attach sfp cables? What frequency do these cables

Re: [AFMUG] Direct attach sfp cables?

What's the purpose? Seems like it would pretty much always be better to just use fiber... On Sunday, January 15, 2017, Josh Reynolds wrote: > Fuck DACs. Snake oil bullshit. > > /end rant > > 10GHz 100ohm > > On Jan 15, 2017 4:59 PM, "Jon Langeler"

Re: [AFMUG] Direct attach sfp cables?

I take that as...fiber sfp work a lot better? Jon Langeler Michwave Technologies, Inc. > On Jan 15, 2017, at 7:18 PM, Mike Hammett wrote: > > The hate is strong with this one... > > > > - > Mike Hammett > Intelligent Computing Solutions > > Midwest Internet Exchange

Re: [AFMUG] Direct attach sfp cables?

The hate is strong with this one... - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From: "Josh Reynolds" To: af@afmug.com Sent: Sunday, January 15, 2017 6:04:59 PM Subject: Re:

Re: [AFMUG] Direct attach sfp cables?

Fuck DACs. Snake oil bullshit. /end rant 10GHz 100ohm On Jan 15, 2017 4:59 PM, "Jon Langeler" wrote: What frequency do these cables operate at? Same as Ethernet? Jon Langeler Michwave Technologies, Inc.

[AFMUG] Direct attach sfp cables?

What frequency do these cables operate at? Same as Ethernet? Jon Langeler Michwave Technologies, Inc.

Re: [AFMUG] Best Way to implement dual stack IPv4/6

What I need (and have mentioned before) is CGNAT or DSLite in a box solution for the whole company. Someone to sell the the hardware, software and customized configuration so I never have to obtain IPV4 again. There is money to be made here folks and I am not willing ( too lazy) to learn

Re: [AFMUG] Best Way to implement dual stack IPv4/6

That actually makes sense and is useful. Much more so than "Wrong!" or "The RFC says". Which yes are basically pissing contests, but thanks to Buzzfeed, I hesitate to use that term. -Original Message- From: Af [mailto:af-boun...@afmug.com] On Behalf Of Faisal Imtiaz Sent: Sunday,

Re: [AFMUG] Best Way to implement dual stack IPv4/6

So discarding the discussions which can possible be classified as 'pissing contest' replies without any reasoning.. The difference in opinion is most of the IPV6 customer allocation size discussion revolves around a particular view of the end-user site size and the perceived potential

Re: [AFMUG] Best Way to implement dual stack IPv4/6

But still, I remember coming back from a WISPA show where I attended a session on IPv6 implementation and best practices. Upon returning, people on the lists said those best practices were dead wrong. So while I may be naive wanting someone to say here's a universal template, it seems no

Re: [AFMUG] Best Way to implement dual stack IPv4/6

*nods* I'm about to roll out IPv6 on my WISP, but I've done it on my IX (which was really no different than anything else). For the WISP, I heard how we should be laying them out and I likely have parts of this off by a magnitude, but I'd say: /64 per individual in-home subnet, but that's

Re: [AFMUG] Best Way to implement dual stack IPv4/6

On 1/15/17 9:43 AM, Faisal Imtiaz wrote: With IPv6, due to how the protocol is designed, for proper understanding, one needs to look at it from bottom up... and instead of counting qty of IP addresses needs to count the amount of subs-nets that can be carved out of the allocation. Which is

Re: [AFMUG] Best Way to implement dual stack IPv4/6

I respectfully disagree with the analogy... In case of religion opinions are based on beliefs. In case of IPv6 there are underlying technical reasons of why the larger prefix... it is impossible to do a one-size that fits all... and some of those reasons may not be apparent or visible

Re: [AFMUG] Best Way to implement dual stack IPv4/6

On 1/15/17 8:55 AM, Justin Wilson wrote: Anything longer than a /64 will break SLAAC, neighbor discovery, and other v6 “stuff”. If you don’t need these then a /127 is for you. Just know the downsides of a /64 vs a /127. The RFC says you can do it, but it conflicts with the before mentioned V6

Re: [AFMUG] OT In search of 400/201 volts

I lived in Argentina (suburb of Buenos Aires) from 1965-1967, and many of the utilities were old and overtaxed, including the electric power distribution. The voltage would drop in the evening, and most people had step-up transformers with a knob and several taps to compensate. The power on

Re: [AFMUG] OT In search of 400/201 volts

Mm MX2010s... On Sun, Jan 15, 2017 at 6:58 AM, Paul Stewart wrote: > Very interesting….. I’m far from a power expert - actually never been my > thing … > > But when we first ordered Juniper MX2010 we ordered them with WYE power as we > thought we could make it work in

Re: [AFMUG] Best Way to implement dual stack IPv4/6

The section on “reasons for using longer prefixes”, specifically: 5.2 . Neighbor Cache Exhaustion Issue Intrigues me. How someone could exhaust my neighbor cache by targeting every address in my PTP /64 :) I dont think you really need SLAAC

Re: [AFMUG] Best Way to implement dual stack IPv4/6

But, as with anything, you have tradeoffs. Routers MUST support the assignment of /127 prefixes on point-to- point inter-router links. Routers MUST disable Subnet-Router anycast for the prefix when /127 prefixes are used. Anything longer than a /64 will break SLAAC, neighbor discovery,

Re: [AFMUG] Best Way to implement dual stack IPv4/6

So like religion, whatever you do, someone will fervently claim you are dead wrong and will burn in hell. -Original Message- From: Af [mailto:af-boun...@afmug.com] On Behalf Of Faisal Imtiaz Sent: Sunday, January 15, 2017 10:32 AM To: af@afmug.com Subject: Re: [AFMUG] Best Way to

Re: [AFMUG] Best Way to implement dual stack IPv4/6

You might want to review some of those recommendations... They don't fall into best practicesand can be problematic. There are many discussions and docs on this topic...A while ago I had a discussion on this topic on Nanog list.. There was a 'key' item pointed out to me and I had to grasp

Re: [AFMUG] Best Way to implement dual stack IPv4/6

On 1/15/17 8:08 AM, Justin Wilson wrote: -assign a /64 for point to point links (aka the equivalent of /30s). Again, don’t think in terms of host count. anything smaller than /64’s breaks things. Some providers out there assign smaller blocks, but it breaks things and isn’t RFC. Using a /128

Re: [AFMUG] Best Way to implement dual stack IPv4/6

Yes, Customers should get /56s. The accepted rule was customers should get /48s, but in an ISP environment the “customer” is the POP. Some other things. -Don’t worry about host count. It’s ipv6. Throw the numbers out the window. Think in terms of subnets and proper boundaries. Count

Re: [AFMUG] Best Way to implement dual stack IPv4/6

Customers should get /56s. - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From: "Lewis Bergman" To: "Animal Farm" Sent: Sunday, January 15, 2017 6:28:09 AM

Re: [AFMUG] Best Way to implement dual stack IPv4/6

Ok .. lots of folks here can probably help but you’ll need to be a bit more specific :) Advise on planning for it? Implementing it on specific gear? last mile to customer? … over entire deployment? Here’s some info that may help (from network perspective): Full dual stack deployment across

Re: [AFMUG] OT In search of 400/201 volts

Very interesting….. I’m far from a power expert - actually never been my thing … But when we first ordered Juniper MX2010 we ordered them with WYE power as we thought we could make it work in a datacenter environment - never got it working because the ordered rail system was only 400V (if I got

Re: [AFMUG] OT Slightly, Cost of Living

LOL .. so did I in my former employer where we had for example a contract to put fiber into a doctors office. We did an aerial drop and installed it - it was never used for over 2 years (but they paid for it) and decided they weren’t going to use it. It was on a 7 year contract (to avoid

Re: [AFMUG] Best Way to implement dual stack IPv4/6

Butch has a practical class on IPV6 which included, years ago, a template for this. It isn't as challenging as you might think. We did it about 5 years ago. If I remember right, we assigned a /48 to our server network, another /48 for our backbone, every tower got a /48, and every customer