RE: Comcast IPv6 Trials Update
I've just bought IPv6 Essentials, however it turned out to be the 1st edition, hopefully there won't be too many differences. I'm also going to go through this PDF on the Cisco website that should put a practical face on the book, which seems very theoretical on a quick flick through ... http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/12_4/ipv6_1 2_4_book.pdf -Original Message- From: Brzozowski, John [mailto:john_brzozow...@cable.comcast.com] Sent: 01 March 2010 14:37 To: bdflem...@kanren.net; cmaur...@xyonet.com Cc: nanog@nanog.org Subject: Re: Comcast IPv6 Trials Update Did you check out IPv6 Essentials, 2nd edition by Siliva Hagen? John 609-377-6594 - Original Message - From: Brad Fleming bdflem...@kanren.net To: Curtis Maurand cmaur...@xyonet.com Cc: nanog@nanog.org nanog@nanog.org Sent: Mon Mar 01 09:27:48 2010 Subject: Re: Comcast IPv6 Trials Update I found Migrating to IPv6: A practical guide to implementing IPv6 in mobile and fixed networks by Marc Blanchet very well written and worth the price of admission. ISBN: 978-0471-49892-6 -- Brad Fleming On Mar 1, 2010, at 8:21 AM, Curtis Maurand wrote: Can anyone recommend a decent book on IPV6? Most of what I find on the net don't explain things very well. thanks, Curtis On 2/28/2010 2:08 PM, John Jason Brzozowski wrote: Mike, Are you looking for something specific on www.comcast6.net? We will likely be making some content updates in the not too distant future and over time as the trials progress and evolve. If there is something specific you would like to see send me your suggestions. Thanks, John On 2/26/10 1:15 PM, Michael Grebmich...@thegrebs.com wrote: Received this message today. They haven't updated the http://www.comcast6.net/ site yet. Mike Begin forwarded message: An Important Message From Comcast Dear Comcast Customer, Thank you for volunteering to participate in Comcast's IPv6 trials! I wanted to provide you with a quick update on what our next steps are and when you can expect to hear from us again. As you know, we have four trials described at http://www.comcast6.net . We're in detailed planning on the first three: 6RD, plus native dual- stack for residential and for commercial customers. We expect each of these to start sometime within the next 90 days or so. 6RD Trial: We anticipate having customers from around our network, not limited to any specific areas, participate. We will start the trial on a very small scale and then progressively increase the number of participants. We plan to ship a new home gateway device to each trial participant. Residential Native Dual-Stack Trial: This trial will be limited to a few areas in our network. We are in the midst of determining precisely what those areas will be, based on where we have volunteers and where the infrastructure will be ready. If trial participants do not have an IPv6-capable home gateway and cable modem, one will be provided. Commercial Native Dual-Stack Trial: This trial will be limited to a few areas in our network. We have tentatively identified these trial areas and will soon be in touch with potential trial users. Within approximately the next 30 days we will begin to contact some of our volunteers regarding each of these trials, so expect to hear from us soon. Thanks again for your interest! Regards Jason Livingood Internet Systems Engineering Comcast = John Jason Brzozowski Comcast Cable e) mailto:john_brzozow...@cable.comcast.com o) 609-377-6594 m) 484-962-0060 w) http://www.comcast6.net = For more information about the Viatel Group, please visit www.viatel.com VTL (UK) Limited Registered in England and Wales Registered Address: Inbucon House, Wick Road, Egham, Surrey TW20 0HR Company Registration No: 04287100 VAT Registration Number: 781 4991 88 THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE INTENDED RECIPIENT TO WHICH IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND EXEMPT FROM DISCLOSURE. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering the message to the intended recipient, you are notified that any dissemination, distribution or copying of this e-mail is prohibited, and you should delete this e-mail from your system. This message has been scanned for viruses and spam by Viatel MailControl - www.viatel.com
RE: dark fiber and sfp distance limitations
If you only want 1gig, then if the SP provides it, won't it be cheaper to simply get a 1gig circuit from them that hands off to you on a GigE port rather than pay for all the various higher spec equipment that you'd otherwise require? Paul. -Original Message- From: Kevin Hodle [mailto:kevin.ho...@gmail.com] Sent: 02 January 2010 23:36 To: Mike Cc: nanog@nanog.org Subject: Re: dark fiber and sfp distance limitations On Fri, Jan 1, 2010 at 4:52 PM, Mike mike-na...@tiedyenetworks.com wrote: I am looking at the possibility of leasing a ~70 mile run of fiber. I don't have access to any mid point section for regeneration purposes, and so I am wondering what the chances that a 120km rated SFP would be able to light the path and provide stable connectivity. There are a lot of unknowns including # of splices, condition of the cable, or the actual dispersion index or other properties (until we actually get closer to leasing it). Its spare telco fibers in the same cable binder they are using interoffice transport, but there are regen huts along the way so it works for them but may not for us, and 'finding out' is potentially expensive. How would someone experienced go about determining the feasibillity of this concept and what options might there be? Replies online or off would be appreciated. I second the recommendation that you request OTDR traces from whomever you are leasing the glass from, and further request traces for each strand in *both* directions (a end to z end, z end to a end) at multiple wavelengths, say 1530nm-1640nm at a maximum of 200GHz wavelength spacing to properly identify potential problem locations in the future when you want to build out a 10GE metro DWDM solution (You really do want to know about that old mechanical splice 20km into your run, etc). An OTDR will provide you with granular loss/gain event details for your entire span, while a power meter/light source will only tell you your overall span loss. While your fiber provider may not pony up OTDR results until after you've executed the contract, they should be able to give you a rough estimate of the total loss (in dB for a 1550nm signal) for the span you are looking at leasing, and you can build provisions into your contract that enforce an absolute maximum loss on the span, in which case the provider will be forced to take necessary actions to replace old poorly executed splices with fusion splices, isolate and correct bends, etc. As most have pointed out - EDFA should not be required for a 1GE single channel solution, and probably would not be required for a simple 1GE CWDM setup either. Once you graduate to an active 10GE DWDM solution EDFA's will be more of a necessity (possibly with dispersion compensation, depending on your vendor this may be an entirely separate shelf module or may be build into the amp card). The addition of EDFA's in a multi-channel solution also adds complexity (if you want to build a scalable/cost effective solution). Most EDFA's have a maximum and minimum per-channel input power, and ideally you would want to have each channel near the same power level before hitting the EDFA. Depending on your gear, topological complexity, etc this may require the use of an optical spectrum analyzer to verify individual channel power levels so the correct amount of attenuation can be added to each channel before it hits the EDFA, however for a single point to point span this will probably not be a concern. -- Cheers, Kevin Kevin Hodle | http://www.linkedin.com/in/kevinhodle PGP Key ID | fingerprint 0x803F24BE | 1094 FB06 837F 2FAB C86B E4BE 4680 3679 803F 24BE Elegance is not a dispensable luxury but a factor that decides between success and failure. -Edsgar Dijkstra For more information about the Viatel Group, please visit www.viatel.com VTL (UK) Limited Registered in England and Wales Registered Address: Inbucon House, Wick Road, Egham, Surrey TW20 0HR Company Registration No: 04287100 VAT Registration Number: 781 4991 88 THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE INTENDED RECIPIENT TO WHICH IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND EXEMPT FROM DISCLOSURE. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering the message to the intended recipient, you are notified that any dissemination, distribution or copying of this e-mail is prohibited, and you should delete this e-mail from your system. This message has been scanned for viruses and spam by Viatel MailControl - www.viatel.com
RE: Interesting Point of view - Russian police and RIPE accused of aiding RBN
So considering they're widely regarded as a criminal network hosting the more dodgy/dangerous stuff on the net, surely we could 'protect' our customers by blocking the 91.202.60.0/22 range? Consider that can of worms opened :o) Paul -Original Message- From: Jeffrey Lyon [mailto:jeffrey.l...@blacklotus.net] Sent: 24 October 2009 08:18 To: Suresh Ramasubramanian Cc: nanog@nanog.org Subject: Re: Interesting Point of view - Russian police and RIPE accused of aiding RBN Since we're on the subject, here is where RBN went: inetnum: 91.202.60.0 - 91.202.63.255 netname: AKRINO-NET descr: Akrino Inc country: VG org: ORG-AI38-RIPE admin-c: IVM27-RIPE tech-c: IVM27-RIPE status: ASSIGNED PI mnt-by: RIPE-NCC-HM-PI-MNT mnt-by: MNT-AKRINO mnt-lower: RIPE-NCC-HM-PI-MNT mnt-routes: MNT-AKRINO mnt-domains: MNT-AKRINO source: RIPE # Filtered organisation:ORG-AI38-RIPE org-name:Akrino Inc org-type:OTHER address: Akrino Inc. address: P.O.Box 146 Trident Chambers address: Road Town, Tortola address: BVI e-mail: noc.akr...@gmail.com mnt-ref: MNT-AKRINO mnt-by: MNT-AKRINO source: RIPE # Filtered person: Igoren V Murzak address: Akrino Inc address: P.O.Box 146 Trident Chambers address: Road Town, Tortola address: BVI phone: +1 914 5952753 e-mail: noc.akr...@gmail.com nic-hdl: IVM27-RIPE mnt-by: MNT-AKRINO source: RIPE # Filtered % Information related to '91.202.60.0/22AS44571' route: 91.202.60.0/22 descr: AKRINO BLOCK origin: AS44571 mnt-by: MNT-AKRINO source: RIPE # Filtered On Sat, Oct 24, 2009 at 3:00 AM, Suresh Ramasubramanian ops.li...@gmail.com wrote: http://www.eweekeurope.co.uk/news/russian-police-and-internet-registry-a ccused-of-aiding-cybercrime-2165 Some quotes from the article - Internet registry RIPE NCC turned a blind eye to cybercrime, and Russian police corruption helped the perpetrators get away with it, according to the UK Serious Organised Crime Agency [...] RIPE was being paid by RBN for that service, for its IP allocation, he said. Essentially what you have - and I make no apologies for saying this is - if you were going to interpret this very harshly RIPE as the IP allocation body was receiving criminal funds and therefore RIPE was involved in money laundering offences, said Auld. [...] All we could get there was a disruption, we weren't able to get a prosecution in Russia, admitted Auld. Our biggest concern is where did RBN go? Our information suggests that RBN is back in business but now pursuing a slightly different business model which is bad news. [...] Where you have got LIRs (Local Internet Registries) set up to run a criminal business- that is criminal actvity being taken by the regional internet registries themselves. So what we are trying to do is work with them to make internet governance a somewhat less permissive environment for criminals and make it more about protecting consumers and individuals, added Auld. RBN looked legitimate, says RIPE NCC In response to the comments that it could be accused of being involved in criminal activity, Paul Rendek, head of external relations and communications at RIPE NCC said that the organisation has very strict guidelines for dealing with LIRs. The RBN was accepted as an LIR based on our checklists, he said. Our checklists include the provision of proof that a prospective LIR has the necessary legal documentation, which proves that a business is bona fide. etc -- Jeffrey Lyon, Leadership Team jeffrey.l...@blacklotus.net | http://www.blacklotus.net Black Lotus Communications of The IRC Company, Inc. Platinum sponsor of HostingCon 2010. Come to Austin, TX on July 19 - 21 to find out how to protect your booty. For more information about the Viatel Group, please visit www.viatel.com VTL (UK) Limited Registered in England and Wales Registered Address: Inbucon House, Wick Road, Egham, Surrey TW20 0HR Company Registration No: 04287100 VAT Registration Number: 781 4991 88 THIS MESSAGE IS INTENDED ONLY FOR THE USE OF THE INTENDED RECIPIENT TO WHICH IT IS ADDRESSED AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND EXEMPT FROM DISCLOSURE. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering the message to the intended recipient, you are notified that any dissemination, distribution or copying of this e-mail is prohibited, and you should delete this e-mail from your system. This message has been scanned for viruses and spam by Viatel MailControl - www.viatel.com
