September 2012 - Test - lists.nanog.org

SAVVIS IPv6 Status
by Christopher J. Pilkington 11 Sep '12

11 Sep '12

We're in SAVVIS DC3 and wondering what the status of IPv6 is there. We submitted a request for IPv6, and we were told SAVVIS does not assign address space. Later emails we were told they will route IPv6 however. I haven't yet contacted sales... I think we lost our rep in the CenturyLink merger. I did see some blurbs from last year saying they weren't ready at that time. Was hoping this changed. We're not multihomed there, (except indirectly via through SAVVIS' own upstreams), so I don't think I can justify an ARIN assignment for that site. Replies on or off list welcome. Thanks much! -cjp

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Traffic Burstiness Survey
by Monia Ghobadi 11 Sep '12

11 Sep '12

Dear Nanog members, I am a PhD student at University of Toronto and I am working on traffic burstiness in data centers. In the following I am asking two questions to raise motivation for my research. I appreciate if anyone could answer these questions to their best knowledge. *The questions are:* 1) ‘Bursty’ is a word with no agreed meaning. How do you define a bursty traffic? 2) If you are involved with a data center, is your data center traffic bursty? -- If yes, -- Do you think that it will be useful to supress the burstiness in your traffic? (For example by pacing the traffic into shorter bursts) -- If no: -- Are you already supressing the burstiness? How? -- Would you anticipate the traffic becoming burstier in the future? Thanks, Monia ------------------ Monia Ghobadi PhD Student University of Toronto http://www.cs.utoronto.ca/~monia/

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Are people still building SONET networks from scratch?
by Will Orton 11 Sep '12

11 Sep '12

We've run into an issue with a customer that has been confounding us for a few months as we try to design what they need. The customer has a location in the relative middle of nowhere that they are trying to build a protected OC3 to. Ultimately, their traffic on it will be packet data (IP/ethernet, not channelized/voice). But they seem to be absolutely 100% set on the idea that they build with Cisco ONS boxes and that they run and control the D1-D12 bytes in order to manage protection switching on the OC3 (and have their DCC channel for management). Since this is the middle of nowhere, we are having to piece it together from a few runs of dark fiber here and there and lit services from about 3 other providers to get from the desired point A to the desired point B. The issues we seem to be hitting are: -We seem to be unable to find anyone who sells lit OC3 with D1-D12 transparency for the client. Sometimes we can get D1-D3, but that's it. -lit OC3/12/48 is ridiculously expensive comapred to 1g ethernet waves or 10g waves (choice LAN/WAN ethernet or OC192) 10g waves are cheap enough that we have entertained the idea of buying them and putting OC-192/muxponders on the ends to provide the OC-3, but even then I'm having trouble finding boxes that will do D1-D12 transparency for client OC-3. Building the whole thing on dark fiber so that we could specify the exact equipment on every hop isn't going to happen, as the "protect" path is about 1000 miles and the geography is such that we don't really have a market for all the other wasted capacity there would be on that path. Having much more experience with ethernet/packet/MPLS setups, we are trying to get the client to admit that 1g/10g waves running ethernet with QoS would be as good as or better in terms of latency, jitter, and loss for their packet data. So far they will barely listen to the arguments. And then going the next leap and showing them that we could work towards <50ms protection switching with MPLS/BFD/etc packet-based protocols is another stretch. Am I missing something here that my customer isn't, or is it the other way around? -Will

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Level3 BGP Issue
by Dennis Burgess 10 Sep '12

10 Sep '12

I have a prefix that is having an issue with BGP, its all inside of L3.... If there is someone that would be willing to assist with L3, shoot me a e-mail offlist J Dennis Burgess,

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[NANOG-announce] Upcoming NANOG mail list maintenance notification - 13-Sept-2012
by Randy Epstein 10 Sep '12

10 Sep '12

On Thursday, September 13, 2012 beginning at 6 AM Eastern, the NANOG mail list service will be unavailable. Mailman will be upgraded and moved to a new location, and all lists will be synced, thus ensuring that no messages or archives are lost in the transition. We expect the outage to last no longer than 30 minutes. Regards, Randy Epstein NANOG CC Chair On behalf of the NANOG Communications Committee _______________________________________________ NANOG-announce mailing list NANOG-announce(a)nanog.org https://mailman.nanog.org/mailman/listinfo/nanog-announce

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Heads-Up: GoDaddy Broke the Interwebs...
by Aaron C. de Bruyn 10 Sep '12

10 Sep '12

For the last ~15 minutes I've been receiving complaints about DNS issues. GoDaddy DNS is apparently b0rked. I'm also seeing a lot of tweets about their hosting and VPS being down. I'm unable to access the control panel for one of my customer accounts. -A

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[SPAM]BGP Issue with L3?
by Dennis Burgess 10 Sep '12

10 Sep '12

Doing a looking glass from the locally connected BGP peer for AS 16843, they are receiving it, the top path, but showing it received-only, and they want to use the "prepended" Path. The rest of L3, outside the local peer looking glass, i.e. the rest of the planet does not even show this path ? Thoughts suggestions? Dennis Paths: (3 available, best #3) 23077 174 7843 11427 16843, (received-only) AS-path translation: { SUNCOM COGENT ADELPHIA SCRR-11427 NORTHEAST-COMNET } WIRELESS-ME.car1.Houston1 from WIRELESS-ME.car1.Houston1 (8.24.196.1) Origin IGP, localpref 100, valid, external Community: 174:21000 174:22013 3549 3491 7459 16843 16843 16843 16843 16843 16843 16843 AS-path translation: { GBLX CAIS-ASN THRIFTYCALL NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET } edge4.Dallas3 (metric 3827) Origin IGP, metric 100000, localpref 88, valid, internal Community: North_America Lclprf_86 United_States Level3_Peer Dallas 3491:200 3549:300 3549:4292 3549:30840 Originator: edge4.Dallas3 3549 3491 7459 16843 16843 16843 16843 16843 16843 16843 AS-path translation: { GBLX CAIS-ASN THRIFTYCALL NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET NORTHEAST-COMNET } edge4.Dallas3 (metric 3827) Origin IGP, metric 100000, localpref 88, valid, internal, best Community: North_America Lclprf_86 United_States Level3_Peer Dallas 3491:200 3549:300 3549:4292 3549:30840 Originator: edge4.Dallas3

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"Circuit of the americas" aka COTA
by Chris McDonald 08 Sep '12

08 Sep '12

Trendy name for the new racetrack/event venue outside austin. Does anyone know how one might get connectivity there? I figure there must be a few folks here prepping the place for the upcoming formula 1. The place seems to be a black hole to all the usual suspects. tia, chris -- Sent from my mobile device

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Re: The End-To-End Internet (was Re: Blocking MX query)
by Joe St Sauver 08 Sep '12

08 Sep '12

Izaac <izaac(a)setec.org> commented: #I suspect your ISP is also stripping <sarcasm> tags. Let's try it out #again: # # You can tell that tcp port 25 filtering is a highly effective spam # mitigation technique because spam levels have declined in direct # proportion to their level of deployment. Today, we barely see any # spam on the internet due to amazing ability of these filters to # prevent bad people from sending bulk email. # #Was that properly marked? Actually, not sure sarcasm tags are appropriate. 1) Port 25 blocks target direct-to-MX spam delivered by bots. 2) The Spamhaus CBL tracks the level of bot spam currently seen, including breaking out statistics by a number of factors. 3) Currently, the US, where port 25 filtering is routinely deployed by most large ISPs, is ranked 158th among countries when you consider botted users on a per capita basis: http://cbl.abuseat.org/countrypercapita.html 4) While that's not perfect (after all, there are still at least 133,811 listings for the US), on a PER-CAPITA basis, it's not bad -- that's just ~0.055% of US Internet users that are infected, relative to some countries where the rate of detected infection (based on spam emission) may be 4 to 5% or more. So yes, actually, port 25 blocks *DO* tend to be effective in reducing bot-delivered email spam. Does this mean that port 25 blocks are the ONLY measure that is required to control spam? No, absolutely not. But it does clearly help. Regards, Joe

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time-b.netgear.com/time-c.netgear.com dns queries
by Basil Baby 08 Sep '12

08 Sep '12

Noticed lot of "A" record queries for time-b.netgear.com/time-c.netgear.comon dns servers. Has anyone noticed similar behavior on any of your dns servers? Anyone aware about a known issue with netgear home routers which can create bulk dns queries? -Basil

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