August 2013 - Test - lists.nanog.org

Parsing Syslog and Acting on it, using other input too
by Kasper Adel 30 Aug '13

30 Aug '13

Hello. I am looking for a way to do proactive monitoring of my network, what I am specifically thinking about is receiving syslog msgs from the routers and the backend engine would correlate certain msgs with output/data that i am receiving through SSH/telnet sessions. What i am after is not exposed to SNMP so i need to do it on my own. I am sure there are many tools that can do parsing of syslog and acting upon it but i wonder if there is something more flexible out there that I can just re-use to do the above ? Please point me to known public or home-grown scripts in use to achieve this. Regards, Sam

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Evaluating Tier 1 Internet providers
by Eric Louie 30 Aug '13

30 Aug '13

Based on various conversation threads on Nanog I've come up with a few criteria for evaluating Tier 1 providers. I'm open to add other criteria - what would you add to this list? And how would I get a quantitative or qualitative measure of it? routing stability BGP community offerings congestion issues BGP Peering relationships path diversity IPv6 table size Seems like everyone offers 5 9's service, 45 ms coast-to-coast, 24x7 customer support, 100/1Gbps/10Gbps with various DIR/CIR and burst rates. I'm shopping for new service and want to do better than choosing on reputation. (or, is reputation also a criteria?) much appreciated, Eric Louie

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Re: ATT contact
by Tri Tran 30 Aug '13

30 Aug '13

Their cs line was not helpful. Their CISC group helped me in the past but now it's forwarded to a cruise line... http://wholesale.att.com/contact/centers/cisc.html --Tri Tran On 8/29/2013 6:47 PM, Christopher Morrow wrote: > On Thu, Aug 29, 2013 at 8:15 PM, Tri Tran <tritran(a)cox.net> wrote: >> Anyone have an ATT contact so that I can get them to update their routing table? >> I have an issue where ATT landline customers is unable to call a specific destination number. > maybe you want to talk to their PSTN support people? :) > you can probably call them... >

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ATT contact
by Tri Tran 30 Aug '13

30 Aug '13

Anyone have an ATT contact so that I can get them to update their routing table? I have an issue where ATT landline customers is unable to call a specific destination number. Tri Tran

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will ISP peer with 2 local WAN routers?
by Adam Greene 30 Aug '13

30 Aug '13

Hi guys, I have a customer who peers via eBGP with Lightpath aka Cablevision (AS 6128) and Level3 (AS 3356) and wants to do some dual-WAN router redundancy. I have heard that carriers will sometimes agree to set up a /29 WAN subnet for a customer and peer with (2) customer routers. The customer is delaying on providing me with the proper circuit ID & contact information to be able to call Lightpath and Level3 directly and find out if they will do this, so I thought of asking this list. Is anyone aware if Lightpath and Level3 will agree to something like this? Thanks, Adam

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Cogent multi-hop BGP
by Tim Durack 29 Aug '13

29 Aug '13

I was under the impression Cogent no longer did the multi-hop BGP thing, but then I got a copy of their NA user guide, and saw the peer-a/peer-b configuration. Not a fan. Anyone know if this is still required for Cogent IP transit service? (on/off list is fine.) -- Tim:>

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Carrier-neutral data center in NYC with good connectivity to long-haul and local loop
by Richard Hartmann 29 Aug '13

29 Aug '13

Dear all, we want to establish a presence in NYC and will need to collect a few local loops (10M-100M) from around NYC. From there, we will connect back to Germany. So, in summary, we will need: * 2-5 rack units to allow for initial deployment and growth * good connectivity to local loops * good connectivity to long-haul back over the Atlantic and within the Continental US While I already compiled a preliminary list of possible choices, I would like input on what DCs would be well-suited for this. As an aside, who are the most painless and efficient Local Loop carriers within NYC and the US? AT&T and Verizon come to mind, but I don't know the local market at all. Thanks, Richard

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Re: Exchange Point
by Larry Sheldon 29 Aug '13

29 Aug '13

I have to ask-- On 8/28/2013 6:49 PM, Eric wrote: > There's also the bug R&E data center Really. Now a feature? -- Requiescas in pace o email Two identifying characteristics of System Administrators: Ex turpi causa non oritur actio Infallibility, and the ability to learn from their mistakes. (Adapted from Stephen Pinker)

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Exchange Point
by james jones 28 Aug '13

28 Aug '13

Greetings, Does anyone see value in putting a open exchange point in one federal in Springfield, MA? -James

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Re: looking for hostname geographic hint validation
by Bradley Huffaker 28 Aug '13

28 Aug '13

On Wed, Aug 28, 2013 at 04:07:05PM +0100, Ben wrote: > Dear Bradley, > > So basically you're asking others to do your homework for you ? ;-) Actually no, I'm asking people to do something which I can not. While it is true I could test against a manual inference, I would simply be checking one inference against another. Agreement would only prove that the algorithm does what I expect. Only the operators, who actually know what they are doing, can give me the ground truth I need to test my inferences against reality. > For example, picking one example from your list .... > > <iata>([^a-z]+[a-z]+\d*){3}.ic.ac.uk > > Far from being IATA codes, the intermediate subdomains actually refer to > departments (DepartmentOfComputing and CHemistry in the two I quoted). > > Sorry to rain on your parade, but someone had to say it. ;-) You are most likely right, but I am not looking for perfection. I am hoping for an inference that will get me with in 10 km of the actual city most of the time. Given the validation I have so far, out of the 19,611 hostnames for which a location is inferred, and I have validation data, we infer the city correctly 93% of the time. While there is work left to do, it is far from the lost cause you present. -- the value of a world model is not how accurately it captures reality but how often it leads us to take appropriate action

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