Re: Is there such a thing as a 10GBase-T SFP+ transciever

2014-01-31 Thread Eric Clark
What I want to see is reasonably priced 40G single mode transceivers. I have no idea why 40G and now 100G wasn't rolled out with single mode as the preference. The argument that there's a large multimode install base doesn't hold water. For one thing, you're using enormous amounts of MM fiber

Why are we fixated on Multimode fiber for high bandwidth communication?

2013-12-31 Thread eric clark
I've been working with 40 gig for a few years. When I first ordered a switch, one of the first publicly available with full 40 gig, I was appalled that I was going to have to use 4 pair of multimode fiber for each of my connections. I had planned on using single mode because I can do that with 1

Re: The Making of a Router

2013-12-26 Thread Eric Clark
I also wonder about re-inventing the wheel. The router part is easy, you could even do that with a windows box (that's a joke). Obviously capital cost is part of it, but the man hours involved in doing what you're talking about, especially since you are talking about a telco whatever you

Re: Helix Solutions

2013-07-05 Thread eric clark
I've seen this sort of thing popping up before. Don't quite understand how its going to work. Leasing I understand. So long as you are willing to suffer the revocation of the IP space should the company that was actually ISSUED the IP space looses it for whatever reason... Buying I really don't

Re: PDU recommendations

2013-06-23 Thread Eric Clark
Raritan has a good line, the usual features, we use a lot of 2U, 208v,30A units with 20xc13 which is a good config these days Their central management software, while not perfect, is excellent for pdu control On Jun 23, 2013, at 8:37 AM, shawn wilson ag4ve...@gmail.com wrote: We currently use

10gig coast to coast

2013-06-17 Thread eric clark
Greetings I may be needing 10 gig from the West Coast to the East Coast some time in the next year. I've got my ideas on what that would cost, but I don't have anything that big. This could be a leased line, part of a cloud with Verizon, NTT, Sprint, or whoever as the provider, etc. I'm just

Re: 10gig coast to coast

2013-06-17 Thread eric clark
Fair enough Seattle to Boston is the general route, real close. On Monday, June 17, 2013, wrote: On Mon, 17 Jun 2013 12:51:28 -0700, eric clark said: I may be needing 10 gig from the West Coast to the East Coast Might want to be more specific. Catalina Island, CA to Buxton, NC (home

Re: 10gig coast to coast

2013-06-17 Thread Eric Clark
: +1 415 376 3314 / car...@race.com / http://www.race.com -Original Message- From: eric clark cabe...@gmail.com Date: Monday, June 17, 2013 3:22 PM To: valdis.kletni...@vt.edu valdis.kletni...@vt.edu Cc: nanog@nanog.org nanog@nanog.org Subject: Re: 10gig coast to coast Fair

Re: 10gig coast to coast

2013-06-17 Thread Eric Clark
I'm looking for options. With dark fiber, obviously, I have the ultimate in options. However, its the ultimate in cost as you say. The requirement we have is 10gig of actual throughput. Precisely what mechanism is used to transport it isn't all that important, though I'm certain that there

Re: APC In-row Units

2013-05-21 Thread eric clark
I'm turning up a facility With APC gear now. I'll let you Know. On Tuesday, May 21, 2013, Morgan Miskell wrote: I realize this topic is semi off point so feel free to reply to the list or to me personally. I am wondering if anyone has any experience using the APC In-row cooling units in

Re: why haven't ethernet connectors changed?

2012-12-21 Thread eric clark
You didn't include RJ11 in your question it goes back further. One reason is that as we push the limits of cable from CAT3 (10meg) to CAT5 (100meg) to 5E (gig) to 6 (not sure what that was for) to 7 (10gig), the cable doesn't get any smaller. We're dealing with higher and higher frequencies

Anyone seeing traffic flow problems in the SanFrancisco / San Jose areas?

2012-04-27 Thread eric clark
I was working with a vendor down there and couldn't get files in or out to save our lives. Additionally, he was having trouble locally. I didn't see anything on the pulse site.

Re: facebook spying on us?

2011-09-29 Thread Eric Clark
did you start your browser before looking at your connection list? However, you're on a window's box, so it wouldn't surprise me if they helpfully started ie for you If you didn't start the browser you use to go to facebook (and its not ie), its fairly interesting. On Sep 29, 2011, at

Re: Environmental monitoring options

2011-09-28 Thread eric clark
Thanks for all the replies everyone. Some good options, though I am surprised by how few options I'm finding that have a good centralized management system. I have to deploy monitoring to a bunch of sites spread around the world, centralized management is key. Thanks for all the suggestions.

Re: OOB

2011-07-26 Thread Eric Clark
As far as best practices, I'm not sure. I've generally built an out of band network for the express purpose of saving my behind in the event of an unanticipated traffic problem on the primary network. Secondarily it allows secured access to equipment, and you can monitor (which is often not

Multi Factor authentication options for wireless networks

2011-06-09 Thread eric clark
Wondering what people are using to provide security from their Wireless environments to their corporate networks? 2 or more factors seems to be the accepted standard and yet we're being told that Microsoft's equipment can't do it. Our system being a Microsoft Domain... seemed logical, but they can

Re: Multi Factor authentication options for wireless networks

2011-06-09 Thread eric clark
with LDAP that way,have to check that. On Thu, Jun 9, 2011 at 3:08 PM, John Adams j...@retina.net wrote: On Thu, Jun 9, 2011 at 3:02 PM, eric clark cabe...@gmail.com wrote: Wondering what people are using to provide security from their Wireless environments to their corporate networks? 2

Re: ARIN and IPv6 Requests

2011-02-10 Thread Eric Clark
Don't remember about the v4 part, but 3 years ago they issued me a /48, specifically for my first site and indicated that a block was reserved for additional sites. I can probably dig that up. Sent from my iPad On Feb 10, 2011, at 12:18 PM, Jason Iannone jason.iann...@gmail.com wrote: It

Re: Using IPv6 with prefixes shorter than a /64 on a LAN

2011-01-31 Thread eric clark
Figure I'll throw my 2 cents into this. The way I read the RFCs, IPv6 is not IP space. Its network space. Unless I missed it last time I read through them, the RFCs do not REQUIRE hardware/software manufacturers to support VLSM beyond /64. Autoconfigure the is the name of the game for the IPv6

Anyone observing latency and dropped packets at peering points in Seattle?

2010-04-02 Thread eric clark
I've been troubleshooting an issue all day. Traffic leaving our site, on Verizon public transport, destined for the Spokane area is routing to Qwest and hitting 400ms rapidly. The offending router seems to be a Verizon router (number 6 here). On top of that, we're seeing this via Level3 coming in

Re: ISP customer assignments

2009-10-13 Thread eric clark
and they forgot to mention it. I'll stick to /64, though it does seem a horrible waste of space. Someone else might have read the RFC differently though. Eric Clark

Re: BGP or MPLS issue ATT in New York?

2009-10-02 Thread eric clark
A friend of mine has services on through yieldbook (in new York) that he accesses from Santa Barbara. He noticed he couldn't get to them around 2pm via his Cox cable inet link, dieing after gar9.n54ny.ip.ATT.net (12.122.131.245), but from his Verizon link, he had no issues. The problem persists

Re: Data Center testing

2009-08-26 Thread eric clark
Most Provider type datacenters I've worked with get a lot of flak from customers when they announce they're doing network failover testing, because there's always going to be a certain amount of chance (at least) of disruption. Its the exception to find a provider that does it I think (or maybe