Re: DataCenter color-coding cabling schema

> On Mar 18, 2016, at 18:42 , Jay Hennigan wrote: > > On 3/12/16 12:15 PM, Joe Hamelin wrote: >> I know at Clearwire data centers we used gray for network, blue for >> management and orange for RS-232 console. At least for the initial build. >> Later re-work or additions were

www.cisco.com no resolve?

dig www.cisco.com @8.8.8.8 ; <<>> DiG 9.8.3-P1 <<>> www.cisco.com @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 60416 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.cisco.com.

Re: Internet Exchanges supporting jumbo frames?

What's driving the desire for larger packets? A single bit error will drop a whole packet. Larger packets will cause more loss. Cables will need to be shorter or bitrates lower to compensate. Byte overhead of packet headers? Are we seeing degradation of packets per second in forwarding due to

Re: Cogent - Google - HE Fun

On 16/Mar/16 17:41, Christopher Morrow wrote: > my guess is the same as Owen's ... 'your rfq don't mean squat'. > honestly it's not like people don't ask their cogent sales folk for > this sort of thing, it's just not cogent's (clearly, given how long > the HE/Cogent thing along has persisted)

Re: CALEA Requirements

Kevin, That's largely true, but keep in mind that it's normal for people who have had to fulfill a request to be disallowed from talking about it which makes them seem even more rare than they actually are. I'm also not familiar with any laws that prevent state or local agencies from leveraging

Re: Internet Exchanges supporting jumbo frames?

I think that’s the problem in a nutshell…until every vendor agrees on the size of a “jumbo” packet/frame (and as such, allows that size to be set with a non-numerical configuration flag). As is, every vendor has a default that results in 1500-byte IP MTU, but changing that requires entering a

[NANOG-announce] NANOG On The Road Comes to Raleigh!

We are very excited to be holding the next NOTR event in Raleigh/Durham Research Triangle on April 12, 2016, and we invite you to join us! Are you interested in Internet networking/peering? Do you work at a colocation, hosting or data center facility? Are you a provider of hardware/software

Re: Why the US Government has so many data centers

So... Before I go on, I have not been in Todd's shoes, either serving nor directly supporting an org like that. However, I have indirectly supported orgs like that and consulted at or supported literally hundreds of commercial and a few educational and nonprofit orgs over the last 30 years.

Re: Cogent - Google - HE Fun

On 16 March 2016 at 14:56, Dennis Bohn wrote: > So if someone (say an eyeball network) was putting out a RFQ for a gig say > of upstream cxn and wanted to spec full reachability to the full V6 net, > what would the wording for that spec look like? > Would that get $provider's

RE: So Cal Verizon Business FIOS to Frontier cutover

Hi Paul I will email you privately to address your concerns. Regards Marla Azinger Supervisor Network ENG IP Address Management -Original Message- From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Paul B. Henson Sent: Wednesday, March 16, 2016 5:27 PM To: nanog@nanog.org

Re: Craiglist blocked

I know someone (not ops but ha can forward internally); forwarding to him. George William Herbert Sent from my iPhone > On Mar 16, 2016, at 2:18 PM, Christopher Tyler > wrote: > > Does anyone have a contact at Craigslist? > Some of our IP addresses got blocked and

Re: Craiglist blocked

> >> I know someone (not ops but ha can forward internally); forwarding to >> him. > > If George's contact doesn't pan out, I have a name that I can forward your > concern to. > Ping me at work (address in the Cc:) with details if there's no response? /facepalm Let's try that again, once more

Re: CALEA Requirements

I believe Scott, just hit the nail on the head... "but keep in mind that it's normal for people who have had to fulfill a request *to be disallowed from talking about it* which makes them seem even more rare than they actually are." On Fri, Mar 18, 2016 at 4:28 PM, Scott Helms

Re: collectd as alternative to RTG for high-resolution polling and long term storage?

Be aware that collectd itself is a collection agent. It doesn't include (last I checked) a grapher. There are however a number of graphers out there to work with those RRD files, if you use that to store the data. I personally have been using collectd across hundreds of Linux systems, using

collectd as alternative to RTG for high-resolution polling and long term storage?

Would anyone care to share their experience using collectd as an alternative to rtg for high-resolution polling of interface traffic and long term storage? I am investigating the various options for large data set size, lossless long term traffic charting (not RRAs which lose precision over

Re: Cogent - Google - HE Fun

On 16/Mar/16 21:23, Owen DeLong wrote: > Please confirm that you in fact are receiving 174 * 6939 IPv6 paths from them? > > Seems unlikely to me. Nope (neither IPv4 nor IPv6) - they are about 1,500 IPv6 routes short from what we see from the others. You're welcome to poke if you want to test

Re: Internet Exchanges supporting jumbo frames?

You would hardly notice it. Helium is 4 times as heavy as hydrogen, but only marginally less buoyant. Header overhead: Ethernet=38 IPv4=20 TCP=20 Total=78 Protocol efficiency: 1500: 1500/1578 = 95% 9000: 9000/9078 = 99% That's 4% better for a TCP packet, not 600%. Thanks, Jakob. > On Mar 18,

Re: Internet Exchanges supporting jumbo frames?

Thus spake Jakob Heitz (jheitz) (jhe...@cisco.com) on Fri, Mar 18, 2016 at 09:29:44PM +: > What's driving the desire for larger packets? In our little corner of the internet, it is to increase the performance of a low number of high-bdp flows which are typically dataset transfers. All of our

Re: Why the US Government has so many data centers

I was trying to resist the urge to chime in on this one, but this discussion has continued for much longer than I had anticipated... So here it goes I spent 5 years in the Marines (out now) in which one of my MANY duties was to manage these "data centers" (a part of me just died as I used that

Re: Cogent - Google - HE Fun

On Wed, Mar 16, 2016 at 11:22 AM, Dennis Bohn wrote: > > On Mar 16, 2016 10:06 AM, "Christopher Morrow" > wrote: >> >> On Wed, Mar 16, 2016 at 9:56 AM, Dennis Bohn wrote: >> > So if someone (say an eyeball network) was putting out a

Re: Cogent - Google - HE Fun

So if someone (say an eyeball network) was putting out a RFQ for a gig say of upstream cxn and wanted to spec full reachability to the full V6 net, what would the wording for that spec look like? Would that get $provider's attention? On Mar 15, 2016 12:50 AM, "Todd Crane"

RE: CALEA Requirements

Ignore it until you get the paperwork. The local law enforcement can not get a warrant for the real time, full data capture. Only FBI or other national agencies can get those subpeona's. We went through this with our local police department. They wanted to make sure we were prepared and

Re: DataCenter color-coding cabling schema

On 3/12/16 12:15 PM, Joe Hamelin wrote: I know at Clearwire data centers we used gray for network, blue for management and orange for RS-232 console. At least for the initial build. Later re-work or additions were whatever the tech had on hand ;) They also had labels on each end of each wire

Re: Cogent - Google - HE Fun

On 3/11/16 7:18 AM, Robert Jacobs wrote: Till we have exclusive content on IPV6 or it is a shorter, faster, bigger, better path then we are still fighting this uphill battle to get more adoption of IPV6 and it will not matter to the majority of Cogent customers that they can't get full IPV6

Re: Why the US Government has so many data centers

On 3/11/16 9:03 AM, Sean Donelan wrote: https://datacenters.cio.gov/optimization/ "For the purposes of this memorandum, rooms with at least one server, providing services (whether in a production, test, stage, development, or any other environment), are considered data centers. However, rooms

Re: transferring [legacy] address space from arin to ripe

On 2016-03-17 00:41, Randy Bush wrote: i have just finished $subject. arin and ripe host and admin folk were cooperative and helpful to the point of being embarrassing; dealing with me when the moon is in klutz has to be a major pita. but inter-rir transfer works, works well, and works for

RE: Internet Exchanges supporting jumbo frames?

Then it's mainly TCP slowstart that you're trying to improve? Thanks, Jakob. > -Original Message- > From: Dale W. Carder [mailto:dwcar...@wisc.edu] > Sent: Friday, March 18, 2016 3:03 PM > To: Jakob Heitz (jheitz) > Cc: nanog@nanog.org > Subject: Re: Internet Exchanges