December 2011 - NANOG - lists.nanog.org

Re: what if...?
by Seth Mattinen 20 Dec '11

20 Dec '11

On 12/20/11 9:23 AM, Christian de Larrinaga wrote: > indeed.. now have your Mom read this again > C Uh, what? ~Seth

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OT: Nortel/Ciena Cooling Tray for OME 6500 - NTK607AAE5
by Net Saint 20 Dec '11

20 Dec '11

For a project that needs to be completed like yesterday in Houston, TX, I need to find cooling trays for Ciena/Nortel OME 6500's .Please contact me off-list if you have any inventory of NTK607AAE5 for sale. Only contact if you have them available, not if you know a guy who knows a guy :) +1-832-615-7743. Thanks and sorry for the OT.

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Overall Netflix bandwidth usage numbers on a network?
by Jonathan Towne 20 Dec '11

20 Dec '11

Been lurking for a while and posed a question to a few folks without much response, figured someone here might've done something like this already. So, before I go about building wheels that already exist: I'm interested in doing a bit of a passive survey of bandwidth usage on my network (smallish isp, a few thousand DSL/FTTx customers) to understand the percentage of average/overall traffic generated by Netflix streaming. What I have available is a few gigabit transport switches providing me with mirror ports, a juniper MX series router running 10.4 code, plenty of BSD machines and libpcap-fu. What I'm looking for is either a timed-average or moments-glance number of the traffic. For instance, on an interface moving 150mbit/sec total, 50mbit/sec of it is attributed to Netflix right now. I'm pretty handy with RRDtool, so that isn't out of the question, either. I've really only spent dinnertime considering this, but have come up with two potential approaches so far, and haven't actively investigated either of them: * firewall terms and counters on the MX router + snmp * writing a quick libpcap application to filter and count in a completely out-of-band way on one of my monitoring hosts Some challenges I can see: * Nailing down the streaming source for Netflix, that is, IP ranges etc. * Making assumptions about CDN source IPs that could be used for something else, and further, should I care? Happy to hear thoughts about this, helpful or not! I know Netflix themselves have probably done plenty of studies like this, but pretty likely not limited to my customer base. Not aiming for anything creepy or crazy, just some vague understanding of what's going on, and the ability to do some trending for future planning. -- Jonathan Towne

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ipv6.level3.com responding with a "500 Internal Server Error" for 3+ days
by Frank Bulk 20 Dec '11

20 Dec '11

ipv6.level3.com has been responding with a "500 Internal Server Error" since Saturday morning. I reached out twice to the NOC email address I have on file, but no response. Perhaps someone can reach out to the right person. Frank P.S.: ipv6.cnn.com has not been responding properly for about two-thirds of this month, starting December 7, early a.m. I've reached out to my Turner contact at least twice, but not luck there, either.

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Microsoft JMRP (Mail) Admin Needed
by Richard Laager 20 Dec '11

20 Dec '11

I'm trying to sign up for Microsoft's Junk Mail Reporting Program. Multiple representatives keep sending me more-or-less form responses saying they can't add my dynamic customer IP ranges because they're "included in...[a] third party block list". The list in question is the SpamHaus PBL. They clearly don't understand that the SpamHaus PBL (unlike other SpamHaus lists) is not a list of IPs that have sent spam. I'm looking for someone with a clue that can help me. Thanks, Richard Laager Wikstrom Telephone Company P.S. Even ignoring the PBL, this policy of not enrolling IP ranges that are listed on DNSBLs doesn't make a lot of sense to me. Even if the IPs had been sending spam, wouldn't Microsoft want the ISP's help in stopping that?

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Steve Jobs has died
by Alex Rubenstein 19 Dec '11

19 Dec '11

Not entirely on-list-topic, but still relevant. http://news.cnet.com/8301-13579_3-20116336-37/apple-co-founder-chairman-ste…

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Savvis Route Server/Looking Glass
by Keegan Holley 18 Dec '11

18 Dec '11

Does anyone know of a working Savvis route server or looking glass. The http://as3561lg.savvis.net/lg.html site doesn't seem to be able to query BGP routes. For example it says they don't have a route to 12.0/9 which seems to be a pretty common aggregate. The traceroute tool works normally though.

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local_preference for transit traffic?
by Keegan Holley 18 Dec '11

18 Dec '11

Had in interesting conversation with a transit AS on behalf of a customer where I found out they are using communities to raise the local preference of routes that do not originate locally by default before sending to a other larger transit AS's. Obviously this isn't something that was asked of them and it took a few days to find since the customer is not a large company and neither them nor my company has a link or business relationship with the AS in question. This seemed strange to me for obvious reasons, but I was curious if anyone else was doing this and why. You obviously cannot use prepend to affect transit traffic again for obvious reasons. MED is a weak metric but it at least only affects traffic that was already going to transit your AS. The larger transit AS was favoring a lower bandwidth link for the customer and causing them to drop packets mysteriously. Just wondering if this practice seemed as strange to others as it does to me.

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Sad IPv4 story?
by Franck Martin 17 Dec '11

17 Dec '11

I just had a personal email from a brand new ISP in the Asia-Pacific area desperately looking for enough IPv4 to be able to run their business the way they would like… This is just a data point.

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Wireless/Free Space Enterprise ISP in Palo Alto
by Darren Bolding 17 Dec '11

17 Dec '11

Apologies if this is not the most appropriate forum for this, but I am not aware of a better list to use. I recently took over responsibility for the network connectivity at an office in downtown Palo Alto (University and Emerson). Unfortunately, and perhaps ironically, the connectivity options here are not as great as I would like- currently they are using DSL, there is no cable service, and lead times for T1's and above are higher than I would like. I have already started the process of getting fiber from the city of Palo Alto between the office and Equinix/S&D/PAIX/529 Bryant, which will resolve the problem. However, the city's time estimate is longer than we need, and experience implies there may be delays. So- I am investigating wireless/free space ISP's in downtown Palo Alto, and also possible options for doing a point-to-point wireless connection between our office and 529 Bryant (I am reaching out to Equinix on this). Any pointers to known good providers, or other suggestions would be very welcome- off list is fine. I am already reaching out to a telecom broker, but wanted to reach out for suggestions. To clarify- I am trying to get either a) rapidly turned up IP transit or b) rapidly turned up point-to-point (presumably wireless) between 529 Bryant/PAIX and the office (University and Emerson). Thanks very much! --D -- -- Darren Bolding -- -- darren(a)bolding.org --

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