March 2016 - Test - lists.nanog.org

Re: Why the US Government has so many data centers
by Scott Weeks 22 Mar '16

22 Mar '16

I finally looked at the Data Center Optimization Initiative (DCOI) at https://datacenters.cio.gov. If you're planning to provide feedback I would just about assure you that this will not be looked at by anyone that will be able to do anything. Likely, there'll be containers for expected/wanted responses and the rest will goto the bit bucket. It's a pressure release valve. (Let `em get it off their chests and then we'll do what we normally do: create confusion and chaos, so no one notices what's actually being done) The politics of gov't folks will over run everything reasonable put forth by non-gov't folks like a stampede of bison. scott

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Citrix Sales Reps?
by Scott Fisher 22 Mar '16

22 Mar '16

I have sent 4 requests to Citrix for pricing questions on XenServer support options and have gotten not a single call back. (Requested via email, form, and calls). Can someone from Citrix please hit me up offlist or can someone direct me to an actual person I can hit up? -- Scott

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So Cal Verizon Business FIOS to Frontier cutover
by Paul B. Henson 22 Mar '16

22 Mar '16

So the transition from Verizon to Frontier is coming up, and I recently got a notice from Verizon pointing me to the following website: http://meetfrontier.com/ Evidently one of the things Verizon did not sell to Frontier is their IP address space, as it seems customers with static IP addresses are going to have to change their allocations :(. I have five statics, and while it is not the end of the world, it will certainly be annoying to have to reconfigure not only my equipment but also update the configurations of my clients that access it and the other service providers I access who restrict based on it <sigh>. I was hoping to get some simple additional information regarding this migration, such as: * How far in advance of the cutover will we be notified? * How far in advance of the cutover will we be supplied with the new static IP addresses? * How big will the cutover window be, and will it be attended or unattended? * How will reverse DNS resolution be handled? So I called the phone number on the website that was provided for questions or additional information. I'm not quite sure why they provided it, as the person who answered it had absolutely no information to provide other than that that was already on the website, and said they were unable to direct me to anyone who could provide any further information; I guess it was for people who needed the website read to them? Any chance there is a Frontier engineer on the list who might be able to provide this information, anonymously if necessary :)? Or someone who has gone through a Verizon to Frontier FIOS static IP address transition in another location who might describe their experience with the assumption it will be similar in California? As far as reverse DNS, the only thing I can seem to find is this: http://hostmaster.frontier.com/reverse.html Which talks about "Business Class DSL and Dedicated Internet" customers, not sure if it applies to FIOS? What I'd really like is to get my PTR entries delegated to me via CNAMEs so I could control the TTLs and update them whenever I wanted to without having to hassle the provider (one of my colleagues has this arrangement with charter business cable), Verizon was never willing to do that. On another note, does anybody have any idea regarding Frontier's position on rolling out IPv6 for business FIOS :)? Hopefully they won't be quite as archaic and stuck in the mud as Verizon has been on that topic :(. Thanks much for any info.

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DataCenter color-coding cabling schema
by Yardiel Fuentes 22 Mar '16

22 Mar '16

Hello Nanog-ers, Have any of you had the option or; conversely, do you know of “best practices" or “common standards”, to color code physical cabling for your connections in DataCenters for Base-T and FX connections? If so, Could you share any ttype of color-coding schema you are aware of ?…. Yes, this is actually considering paying for customized color-coded cabling in a Data Center... Mr. Google did not really provide me with relevant answers on the above… beyond the typical (Orange is for MMF, yellow for SMF, etc)… Any reasons for or against it welcome too... -- Yardiel Fuentes

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Charter DDOS scrubbing.
by Ethan E. Dee 21 Mar '16

21 Mar '16

Globalvision is an ISP in greenville sc. We are currently peering with two other ISP's we have a gig link with charter and are getting hammered quite hard with a full gig and more of DDoS on SIP, DNS, NTP, and other random UDP traffic. Alot of folks have said that charter will do DDoS scrubbing. Charter however is telling me they absolutely cannot offer this service. Does anyone have any info on contacting charter or who to bug about this to get it in the works? Or does any know for certain that there's no reason to even ask? -- Ethan Dee Network Admin Globalvision 864 704 3600 edee(a)globalvision.net Gv-support(a)globalvision.net 864 467 1333 -- This message has been scanned by E.F.A. Project and is believed to be clean.

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Re: Internet Exchanges supporting jumbo frames?
by Jakob Heitz (jheitz) 21 Mar '16

21 Mar '16

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 the increase in IPv6? Are we seeing IPv6 packets with hop-by hop extension headers (which forward on the slow path)? Increasing the packet size will reduce the number of TCP packets as well as the number of TCP ack packets. TCP ACK packets are significantly larger in IPv6 than IPv4. TCP slow start is faster with large MTU. Is this an issue? Are IPv6 packets with extension headers causing performance degradation in firewalls? Thanks, Jakob.

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Re: 10G tester recommendation
by Eric Litvin 21 Mar '16

21 Mar '16

Yes Darrell We have a 19" rackmount 1U optical channel monitoring. Unit plugs into the monitor port of the Mux and enables DWDM Channel Monitoring - i.e power levels and OSNR. It can be accessed remotely over SNMP. Regards, Eric Litvin 650 996 7270 Eric(a)lumaoptics.net PROGRAMMABLE SFP XFP QSFP CFP > On Mar 21, 2016, at 8:04 AM, Darrell Budic <budic(a)onholyground.com> wrote: > > Eric, saw this on the NANOG lists, figured I’d ask. I’m looking for a device to set on the monitor port of a DWDM mux and provide statistics over an attached network interface via SNMP or cli. Do you have such a product, or know of one? > > Thanks! > > -Darrell > > >> On Mar 20, 2016, at 3:38 PM, Eric Litvin <eric(a)lumaoptics.net> wrote: >> >> Manuel- my company, luma optics, has a handheld to offer at a very affordable price relative to the big brands. It would be my pleasure to follow up with you to discuss further. >> >> Regards >> >> Eric Litvin >> 650 996 7270 >> Eric(a)lumaoptics.net >> PROGRAMMABLE SFP XFP QSFP CFP & Optical Test Equipment >> >> >> >>> On Mar 20, 2016, at 11:58 AM, Manuel Marín <mmg(a)transtelco.net> wrote: >>> >>> Hi Nanog community >>> >>> >>> We are looking 10G testers for BER and RFC2544 tests and I was wondering if >>> additional to the JDSU/Viavi, is there something else that you can >>> recommend like Exfo, Fluke, etc? >>> >>> Your input will be appreciate it >>> >>> Thank you and have a great day >

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Wireless (WiFi) MOS equivalent?
by Jim Wininger 21 Mar '16

21 Mar '16

Hello all, Is there a WiFi equivalent to the VoIP MOS score? We are looking for a way to measure performance of a fairly large WiFi deployment. We have 8000+ access points (All Cisco). WE have the standard Cisco tools for managing the wireless network (ISE, Prime etc). But we are coming up short with a way to “score” the network. Does anyone have experience with this that might be able to help? How do large conferences “measure” wireless service quality etc? We are already doing end user surveys etc. We have “soft date”, we really need data points. —Jim

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10G tester recommendation
by Manuel Marín 20 Mar '16

20 Mar '16

Hi Nanog community We are looking 10G testers for BER and RFC2544 tests and I was wondering if additional to the JDSU/Viavi, is there something else that you can recommend like Exfo, Fluke, etc? Your input will be appreciate it Thank you and have a great day

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Reminder of the L-Root IPv6 address renumbering
by David Soltero 20 Mar '16

20 Mar '16

This is reminder that there is a scheduled change to the IPv6 addresses for the L-Root server, that will take effect on March 23, 2016. The new IP addresses for the L.ROOT-SERVERS.NET will be: 199.7.83.42 2001:500:9f::42 Please remember to update your root “hints” files on your DNS infrastructure.

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