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Hey! New message, please read <http://125sms.com/just.php?0> Alex Rubenstein

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Hey! New message, please read <http://singdanceplaylearn.com/miss.php?6uxv> Alex Rubenstein

Re: Ear protection

Why not just build a Datacenter that is quiet? On Sep 23, 2015 05:34, Nick Hilliard wrote: What are people using for ear protection for datacenters these days? I'm down to my last couple of corded 3M 1110: http://www.shop3m.com/3m-corded-earplugs-hearing-conservation-1110.html

RE: optical gear cooling requirements

It is interesting where this conversation turned. But for history's sake... NAC started on PM2e with Microcom's, and then USR Sportster. I remember USR sending us PROM chips to change from 28.8 to 33.6. After that, PM3's. We were early PM3 users, working with Megazone on an almost continuous

optical gear cooling requirements

The rock has turned over for a moment and I have crawled out. It is good to see the sunlight from time to time. Those who know me know my life has gotten away from networking and that sort of thing, and I am fully immersed in datacenter design and construction for IT type loads (blades,

gmail spam help

Is there anyone on-list that can help me with a world - gmail email issue, where email is being considering spam by gmail erroneously? Thanks.

RE: gmail spam help

that there is no spamming going on from here. So, it’s not a question of adding a filter or not using gmail; it is not me who is using gmail in this problem. From: Josh Luthman [mailto:j...@imaginenetworksllc.com] Sent: Thursday, February 12, 2015 9:32 AM To: Alex Rubenstein Cc: NANOG list Subject: Re: gmail

RE: gmail spam help

Mainly because I own it, and the people who use it. The server has been around 10+ years and has tight oversight. SPF is proper. This is a recent issue. From: Scott Helms [mailto:khe...@zcorum.com] Sent: Thursday, February 12, 2015 10:51 AM To: Alex Rubenstein Cc: Josh Luthman; NANOG list

RE: OT - Verizon/ATT Cell/4G Signal Booster/Repeater

Correct. I've used T-Mo WiFi calling in numerous countries on three continents, and they are all treated as is you are in your 'home' country. That is my understanding. Wifi calling is treated as on-net home calling. Just a question on T-Mobile and wifi. If you are traveling to a roaming

RE: OT - Verizon/ATT Cell/4G Signal Booster/Repeater

These work well, I have an ATT in my house. However, in a broad deployment (like in a datacenter with lots of discreet visitors) it is pointless, because ATT requires registration of any phone connected and it is limited to 10. I just with Wifi calling was ubiquitous. Assuming you have good

RE: OT - Verizon/ATT Cell/4G Signal Booster/Repeater

On Tue, Dec 16, 2014 at 12:32 PM, Alex Rubenstein a...@corp.nac.net javascript:; wrote: I just with Wifi calling was ubiquitous. isn't it in every android phone since ~1yr ago? Perhaps they are, but ATT and Verizon don't allow it, because they are terrible.

RE: Muni Fiber and Politics

What timing. I live in 07874. Out here, only 50 miles from New York City, we have a problem. Verizon's network in this area is older than most people who are subscribed to this list. The copper is literally falling off the telephone poles, and in conversations with linemen, they are instructed

North NJ LATA 224

Anyone selling IP over ATM / Frame Relay in North NJ Verizon LATA 224 that could carve a PVC real fast?

RE: L6-20P - L6-30R

Go look at any standard household lamp. It has a 5-15P on the end of it, which could be plugged into an outlet rated for 20 amps (5-20R), with 16 gauge lamp cord rated for 10 amps or less. Mine all seem to be NEMA 1-15P, some (most?) with 18 AWG wire. Have I been shortchanged? :) I

RE: L6-20P - L6-30R

Just because you say the debate should be ended doesn't mean it's true, or that you are even correct. To end the debate, my staff master electrician says just replace the breaker. Your staff electrician missed half the answer, which would be to replace the breaker AND the receptacle. But you

RE: L6-20P - L6-30R

Strictly speaking, no, you cannot do this. The diameter of the pattern of the pins are different 20 to 30 amps. If no electrical inspectors are looking, yes, you can bend the pins and make it work. I've done it, others have done it, but you shouldn't do it and it is a clear electrical code

RE: L6-20P - L6-30R

Go look at any standard household lamp. It has a 5-15P on the end of it, which could be plugged into an outlet rated for 20 amps (5-20R), with 16 gauge lamp cord rated for 10 amps or less. It all depends on the connected load. * w...@typo.org (Wayne E Bouchard) [Tue 18 Mar 2014, 23:53 CET]:

RE: do ISPs keep track of end-user IP changes within thier network?

We had gear in the MFS Colo in Whippany, NJ. We had a couple routers (2501's and a 4700M), a couple PM3's, and some other crap. Near us were TNT's and Total Controls from ANS (remember them??). Yeah, it got warm in there, especially when the single 10 ton AC unit failed (about every other

RE: Reverse DNS RFCs and Recommendations

Not necessarily. When the CPE is configured through DHCP (or PPP?), the ISP can send the secret. Which can be seen, in many cases, by other parties Who can see the packets sent from the local ISP to the CPE directly connected to the ISP? The NSA, FBI, CIA, DHS. Or, the ISP, the ISP's

RE: Reverse DNS RFCs and Recommendations

we cannot assume that the connection between isp and cpe is a single entity. a typical example will be the guy who run the dslam and the guy who run the bras belong to two different companies in market which mandate open access. ... which is very, very common.

RE: nanog.org website - restored

I have, and would. -Original Message- From: Phil Bedard [mailto:bedard.p...@gmail.com] Sent: Monday, October 07, 2013 8:50 PM To: Michael Thomas; nanog@nanog.org Subject: RE: nanog.org website - restored Yeah isn't there some cloud provider like Amazon, Rackspace, or MS willing

RE: The US government has betrayed the Internet. We need to take it back

From: Sam Moats [mailto:s...@circlenet.us] I give up trying to resist, I am now firmly in the tin foil hat club. And therein lies the problem.

RE: ARIN WHOIS for leads

Case in point.. And I'm going to name drop, but do not consider this a shame. I have been looking at various filtering technologies, and was looking at Barracudas site. I went on with my day, but noticed that filtering vendors start showing up on random websites. Fast forward 24 hours later..

RE: Friday Hosing

Ohh we had some of those at JVNCNet, a real piece of crap. Wow. JVNCnet. Haven't heard that name in a long, long time.

RE: One of our own in the Guardian.

Yet, here, where I live, only 47 road miles from New York City, I have a cable company who sells me metered (yes, METERED) DOCSIS, for nearly $100/month, 35/3. The limitation is like 100 GB/month or something (the equivalent of the amount of Netflix or AppleTV my kids watch in a weekend) No

RE: Mechanics of CALEA taps

Honestly, I expect replies to this question to range between zero and none, but I have to ask it. Surprise! I understand the CALEA tap mechanism for most ISPs, generally, works like this: * we outsource our CALEA management to company X * we don't even know there's been a request

RE: PRISM: NSA/FBI Internet data mining project

Approaches like http://www.wired.com/science/discoveries/news/2006/04/70619 obviously don't scale to small time operators. But if you can vaccuum up close to the core at full wire speed (and there is no reason to think you can't, since there are switches which deal with that) you don't have

RE: PRISM: NSA/FBI Internet data mining project

So, you are comfortable just giving up your right to privacy? It's just the way it is? If you want to exercise your right to privacy, use end to end encryption and onion remixing networks to hamper traffic analysis. Whoa. These are two completely separate issues. I concur with you

RE: PRISM: NSA/FBI Internet data mining project

Has fingers directly in servers of top Internet content companies, dates to 2007. Happily, none of the companies listed are transport networks: I've always just assumed that if it's in electronic form, someone else is either reading it now, has already read it, or will read it as soon

RE: Level3 worldwide emergency upgrade?

Would you rather your ISP not maintain their devices? Are the consequences so bad of a 30 minute outage that your business is severely impacted? - Jared You had me up until that line. That should be expanded a little ... First, I'd say, yes - many businesses would be severely impacted

RE: Level3 worldwide emergency upgrade?

Yeah, perhaps not as elegantly worded as I would have hoped, but there are many reasons things go down. Just one of those elements is the internet part, there's also transport, power, and other elements that combine to make this complex system called the internet. If you N+N or N+1 your

RE: Online/double-conversion UPS economy/high efficiency modes?

level. I know GE's smallest unit is 300 kva for eBoost. Question everything, assume nothing, discuss all, and resolve quickly. -- Alex Rubenstein, AR97, K2AHR, a...@nac.net, latency, Al Reuben -- --Net Access Corporation, 800-NET-ME-36, http://www.nac.net --

RE: Online/double-conversion UPS economy/high efficiency modes?

I have a 700VA 9130 rackmount that I recently bought to give it an eval run (although the first was a dud). There is a 3kVA model. For my small load it reports a PF of 0.91 online. PF, as in power factor? That has nothing to do with UPS efficiency.

RE: Eaton 9130 UPS feedback

Just go -48vdc. None of these pesky UPS problems :) Well, you still have 1/2 the UPS - the inverter section. It's not a silver bullet.

Re: Sandy seen costing telco, cable hundreds of millions of dollars

Probably ATT. Many areas of NJ had zero service from them for days. - Original Message - From: Jima na...@jima.tk To: nanog nanog@nanog.org Sent: Wed Nov 07 09:32:25 2012 Subject: RE: Sandy seen costing telco, cable hundreds of millions of dollars On Tuesday, 2012-11-06, Frank Bulk

RE: NJ impact

I would be interested to know how the power outages due to the storm have negatively affected air pollution and the smog problem in the area. Due to generators burning huge amounts of diesel, generators which undoubtedly have no meaningful air pollution control to speak of. Well, that isn't

RE: Flood affecting US east coast communication facilities?

If anyone is in need of emergency connectivity, VM's, colo, showers, whatever, please contact me. All of our offices in Northern NJ are accessible and online and can support any sort of emergency need. -Original Message- From: Emily Ozols [mailto:win...@team-metro.net] Sent: Tuesday,

NJ impact

I had to summarize this recently for a news article I was interviewed for, so I figured I forward: -- Of our three datacenters, this is what we saw: Parsippany 1 (OCT) - The worst we saw here was several sub-second power hits. UPS's held without problem, and we did not transfer to generator

RE: Data Center Flooring

We have operated with several types of floor in four locations over the last 15 years (Raised, VCT, painted, and polished concrete). Personally, I like the look of the polished concrete the best. It's relatively cheap and easy to do. Epoxy and VCT tend to get hurt over time and require

RE: The Department of Work and Pensions, UK has an entire /8

The only slight snag in his argument is that the addresses are not unused. Not announced != Not used. And for the definitive answer on this block, the official response is: http://www.whatdotheyknow.com/request/internet_protocol_ipv4_address_a and

Re: CDNs should pay eyeball networks, too.

I can't agree with this. You are assuming a cost-plus model. Many things are market-priced. If you are the only game in town, and you have a great product, you sell it for the most you can. You aren't a charity. The customer always has the option to not buy your product. -

Re: Colocation in New York for a POP

25 B'way is in the process of being shuttered. - Original Message - From: Pierce Lynch p.ly...@netappliant.com To: Abdelkader Chikh Daho achikhd...@iweb.com Cc: nanog@nanog.org nanog@nanog.org Sent: Thu Apr 19 11:22:17 2012 Subject: RE: Colocation in New York for a POP Abdelkader, I

Re: Global Naps?

Bankruptcy liquidation. - Original Message - From: Mark Stevens mana...@monmouth.com To: nanog@nanog.org nanog@nanog.org Sent: Mon Mar 05 13:46:15 2012 Subject: Global Naps? Global NAPs seemingly shutdown all tandem services last week and it is causing major congestion issues with

RE: meeting network

Years ago, on my own, when I used to attend, I used to call the venue about a month in advance and explain to them what was about to happen. Sort of a warning, per say. I explained, in detail, who NANOG was comprised of (I often would use the term operators of the internet). I explained even if

Steve Jobs has died

Not entirely on-list-topic, but still relevant. http://news.cnet.com/8301-13579_3-20116336-37/apple-co-founder-chairman-steve-jobs-dies/?tag=cnetRiver

RE: Mailing list/group for datacenter facilities folks

Perhaps there should be a DC track at NANOG? One of the reasons I have not gone in years. I have much knowledge and experience to share, but no one to share it with. I would love to be a part of this list if there is one!!! Cooling is not as easy as just pumping cold air into a room.

Re: iCloud - Is it going to hurt access providers?

I think is would be short term. The home user is not going to continuously upload data. They will do an initial sync, then incrementals. People are doing this today with success. This is not a new thing. Sent via Blackberry while presumably driving with one hand - Original Message

RE: New Natural Disaster! 8/27/2011 Hurricane Irene

Yeah, I was going to respond to the original post but can't find it. The statement made by Mr. Wallace borders on insulting. The devastation in my county alone is something I have never seen. Thousands of houses destroyed, tens of thousands displaced. Businesses completely wiped out. A major

Re: East Coast Earthquake 8-23-2011

Switch las vegas makes the same claim. KY is def prone to the affects of a hurricane. But if you have a roof and reasonable drainage, you will be ok. Sent via Blackberry while presumably driving with one hand - Original Message - From: Jay Ashworth j...@baylink.com To: NANOG

Re: East Coast Earthquake 8-23-2011

I don't know that is true. I believe voice network was overwhelmed. Wireless data and sms had no issue or interruption whatsoever. Sent via Blackberry while presumably driving with one hand - Original Message - From: chris tknch...@gmail.com To: Sule, Mohammed mohammed.s...@nbhn.net

RE: NANOGers home data centers - What's in your closet?

All the actual EE's I know are most impressed with the PowerWare (now Eaton Power) designs. For insance their 5110 is a line-interactive design built with quality components. The last I looked APC did not have a line-interactive design in this price range; they were all the standby design.

RE: personal backup

My home backups are somewhat large and not yet offsite due to their size. (~4.7TB). We (NAC) run a rather large ZFS thing to sell cheap 'scratch space.' When I say large, I think it surpasses well over 100 TB at this point. So for me, it was easy. At home, my stuff spins on disk (nice

RE: NANOGers home data centers - What's in your closet?

Of course, if he had local AC power available, it would kinda defeat one of the points of having PoE, which is to be able to put switches where there isn't a convenient AC drop to begin with. But wait, there is more... Maybe you want your POE devices (like phones) to stay alive during a power

RE: Home computer rooms

I am in the process of building a house. I designed a room that can accommodate three 24 x 36 inch cabinets or four post racks. I will likely install a APC 2200 watt UPS in the bottom of two of the racks, and the third will be a cross-connect field, patch panels, etc. The room will have a

RE: NANOG Digest, Vol 43, Issue 53

Damn, and people claim I'm nuts! I know I am, thanks. You know, you could go whole hog and multihome. Trust me, if I could, I would certainly do dark to my house. I've got 1 cabinet and 1 two-post rack in the basement. I'm also building out a small patch panel in a closet on the second

Re: 3Com Total Control documentation

We recently dumped about 40 into a dumpster. I shed a tear. Sent via Blackberry while presumably driving with one hand - Original Message - From: Matthew Black bl...@csulb.edu To: hect...@pobox.com hect...@pobox.com; NANOG list nanog@nanog.org Sent: Thu Jul 28 11:19:11 2011 Subject:

Re: 3Com Total Control documentation

Yeah, you are correct. But it was still a dumpster. We recycle a lot of metal around here :) Sent via Blackberry while presumably driving with one hand From: Matt Taber matt.taber.na...@gmail.com To: Alex Rubenstein Cc: 'bl...@csulb.edu' bl...@csulb.edu; 'hect

RE: Wacky Weekend: NERC to relax power grid frequency strictures

More to the point, as I note in another reply, you don't want to be *the lineman down the road with his hands on a dead wire*. Pretty much the *first paragraph* in NEC 700 (700.6) says this: Transfer equipment shall be designed and installed to prevent the inadvertent interconnection

RE: Wacky Weekend: NERC to relax power grid frequency strictures

It makes little sense to sync to the grid when the generator is only used when the grid is down - and unless you run your generators 24/7 your UPS will have to make up for the comparatively long time it takes for the generator to start, so it's rather useless to sync the generator when the

RE: Wacky Weekend: NERC to relax power grid frequency strictures

I think we're missing something, which is where these ATS's are installed. I don't think most utilities allow (largeish) ATS's to do a closed transition from a genset to the utility grid, but I may be wrong. There may be other ATS's in your facility that do a closed transition though. For

RE: Wacky Weekend: NERC to relax power grid frequency strictures

It ismy understanding also that most commercial grade gensets have built into the ATS logic that when utility power comesback online, that the transfer back to utility power is coordinated with the ATS driving the generator until both frequency and phases are within a user specified range?

RE: Server Cabinet

Or: This content is currently unavailable The page you requested cannot be displayed right now. It may be temporarily unavailable, the link you clicked on may have expired, or you may not have permission to view this page. -Original Message- From: D'Arcy J.M. Cain

RE: And so it ends...

And we have yet to see what happens with backend transactions between private institutions that have large blocks laying around, and them realizing that they have a marketable and valuable thing. We may all say it won't happen, we may even say we don't want it to happen, or that it shouldn't be

RE: How are you aggregating WAN customers these days?

Cheap and reliable. Cisco 7507, RSP4 or RSP8 or whatever, with ChanDS3 cards, running 12.0S. -Original Message- From: Chris [mailto:behrnetwo...@gmail.com] Sent: Monday, January 10, 2011 9:52 AM To: nanog@nanog.org Subject: How are you aggregating WAN customers these days?

RE: Some truth about Comcast - WikiLeaks style

I just see this as a natural progression of what happens of a single player with a captive audience due to mergers and attrition. They know their customers aren't going anywhere. The only way to fix it would be to go back to the days when there were a bunch of competing local providers. Wait

RE: Want to move to all 208V for server racks

Also note that *your* electrical engineer may de-rate the circuits capacity due to the fact that switching power supplies generate numerous artifacts on the lines. These are all advanced (electrical) engineering topics. From a practical, real-world standpoint, these are not concerns today.

RE: Want to move to all 208V for server racks

GFCI breakers are often required on large services, most large (new) 480v services I have seen (1000A and larger) a have Ground fault breakers, Actually, my recollection is that large new services include arc suppression rather than ground fault (480V service may be floating in any case,

RE: Want to move to all 208V for server racks

btw, one thing I do not recall seeing on this thread is that 208v avoids one of the common problems with 120v, which is the third harmonic issue. With the cheaper switching power supplies, one will often see significant 3rd harmonics in the waveforms(*). The 3rd harmonic, across a 3 phase

RE: Want to move to all 208V for server racks

I really want to move all newly installed internal and customer racks over to all 208v power instead of 120v. As far as I can remember, I can't remember any server/switch/router or any other equipment that didn't run on 208v AC. (Other than you may need a different cable) Anyone have any

RE: Want to move to all 208V for server racks

you mean 240V AC 50HZ and move from 120V 60Hz? (or also 50Hz) In US, I think everything is 60Hz. But I mean 208v single phase. (Which is what you get when you combine two 120v single phase legs out of three phase, I believe. I am not an expert on AC...) That would be considered a 2 pole,

RE: Want to move to all 208V for server racks

On 12/2/10 9:20 AM, Mark Kent wrote: Why do we install 120v instead of 208v? was asked over a year ago either here or on cisco-nsp. It generated a long discussion, but it should have been cut short as early in the thread someone said all that had to be said: because we are idiots.

RE: The scale of streaming video on the Internet.

*Way* more power than the equivalent transmitters and TV sets. Even if you add in the cable headends, I suspect. Yeah, but... This is really not comparable. Transmitters and TV sets require that everyone watch what is being transmitted. People (myself included) don't like, or don't want

RE: Want to move to all 208V for server racks

GFCI breakers are very common, the slightly less common version are arc fault breakers which are starting to show up more as well. Partly because of a code requirement. Houses burning down, etc. Somehow, we all survived for a long time without them, but now there is a huge requirement.

RE: wikileaks unreachable

Uh... huh? Just so we are all straight and clear - wikileaks hit is not a 'Distributed' DoS, its a simple DoS - I dont use intermediaries or botnets. Sun Nov 16 - 15:28 EST That would be just about 2 weeks ago.

RE: Routers in Data Centers

I'm not saying the problems are the same, but I am saying that a backplane making cooling hard is not a good excuse, especially when the small empty chassis costs $10K+. And, not to mention that some vendors do it sometimes. The 9-slot Cisco Catalyst 6509 Enhanced Vertical Switch

RE: Metering power in data center

We use products from Veris. If you could be more specific as to what you want to meter (and where, and types / brands of panels), I could point you further. I am looking for suggestions on devices that can monitor(A)/meter(kw/h) power usage in a data center. Getting a metered PDU everywhere

RE: Cogent input

I'm aware of some (regular?) depeering issues. The NANOG archives have AFAIR, there has never been a black-holing, just disappearance of routes. If you are properly multihomed, this is irrelevant and you continue to eat your ice cream and chuckle while they fight it out. It's amusing, really.

RE: Why choose 120 volts?

I have a pure curiosity question for the NANOG crowd here. If you run your facility/datacenter/cage/rack on 120 volts, why? Because we are stupid. I've been running my facility at 208 for years because I can get away with lower amperage circuits. I'm curious about the reasons for using

RE: Why choose 120 volts?

Even better would be all two pole 2 pole 480's or 2 pole 600's, then we wouldn't need neutrals. Oh, yeah! Nothing sounds like more fun than working in a room full of 480 or 600 delta. I LIKE neutrals. (Sort of like I like continuing to have a functioning heart.) Nobody said delta.

RE: Slightly OT: Calculating HVAC requirements for server rooms

something and don't, is in a much better position to talk about this than a PE who designs comfort cooling systems. Question everything, assume nothing, discuss all, and resolve quickly. -- Alex Rubenstein, AR97, K2AHR, a...@nac.net, latency, Al Reuben -- --Net Access Corporation, 800-NET-ME

RE: ARCOS Outage

I wonder if having a spare card there would have been cheaper than this outage and resulting flights and labour? Yup, there is a defective card in the Bahamas. They should be flying in this morning to have it replaced. It's been out since yesterday evening.

RE: Telecom Collapse?

The ATT (BellSouth) remotes around here installed in the last 10 years or so typically have natural gas generators installed, and the COs have a pair of generators for redundancy. Even many of the cell towers have generators. The telco infrastructure is pretty well backed up (I don't know

RE: Telecom Collapse?

And it gets better: ATT to reduce workforce by 12,000 - ATT Inc. will layoff 12,000 of its employees, or 4 percent of its total workforce, in response to recent economic pressures. Sprint/Nextel has had negative net income of $326mm, $829mm, and $505mm for the last three quarters. Verizon

RE: Telecom Collapse?

I deliberated for a while on whether to send this, or not, but I figure it might be of interest to this community: http://techliberation.com/2008/12/04/telecom-collapse/ Good god. If there is even the mention of a LEC bailout, I am going to go insane and probably shoot someone (those who

RE: Google's PUE

I only quickly read this, but have the following question, should google like to answer it... Of the six datacenters, where are they all physically located? Someone should get on the bandwagon of having a PUE standard that is climate based. A PUE of 1.3 in the Caribbean is way impressive than

RE: Google's PUE

Google not counting electricity losses from power cords etc gives the image that it doesn't really want to account everything and want to skew the numbers as much as possible. I don't agree with this. It is commonly accepted that when computing DCIE/PUE, the point of demarcation (used that

RE: Is Usenet actually dead?

We operate a transit box, and there are still quite a few of them out there. Pushing hundreds and hundreds of megs. http://news.anthologeek.net/ -Original Message- From: Edward B. DREGER [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 06, 2008 2:48 PM To: Robert E. Seastrom Cc:

RE: Hauling gear around a NANOG meeting

I hate to break the news to the New York bashers, but New York is one of the safest American cities. This is not a controversial statement. While I generally agree with what Rod is saying, saying NYC is safe is like saying all routers are cisco There are safe areas, and there are not safe

RE: Hauling gear around a NANOG meeting

I hate to break the news to the New York bashers, but New York is one of the safest American cities. This is not a controversial statement. While I generally agree with what Rod is saying, saying NYC is safe is like saying all routers are cisco There are safe areas, and there are not safe