RE: Good MPLS/VPLS book?
Decisions decisions, I do have other MPLS books I have not finished. I suppose I can finish them before picking this up and then getting the 3rd edition.might be good timing. Good thing I didn't order the 2nd edition the other day! Subject: Re: Good MPLS/VPLS book? From: franc...@menards.ca Date: Sat, 25 Dec 2010 20:42:24 -0500 To: mounir.moha...@gmail.com CC: nanog@nanog.org Looks like a third edition is on the way slated for March 2011 http://www.amazon.com/MPLS-Enabled-Applications-Developments-Technologies-Communications/dp/0470665459/ref=ntt_at_ep_dpt_2 I would expect it to cover MPLS-TP and the struggling evolution of PBB-TE ... anybody has any idea if this is in ? F. On 2010-12-24, at 7:47 AM, Mounir Mohamed wrote: The most comprehensive text is MPLS Enabled Applications by Ina Minei http://www.amazon.com/MPLS-Enabled-Applications-Developments-Technologies-Communications/dp/0470986441/ref=sr_1_1?ie=UTF8qid=1293194786sr=8-1 On Fri, Dec 24, 2010 at 12:49 AM, Michael Helmeste mhelm...@uvic.ca wrote: Does anyone have a favorite book or resource discussing MPLS and all associated Lego blocks (e.g. LDP, TE, VPLS, martini, mBGP et. al.)? I understand the basics of what MPLS is and how you create a circuit from A to B but I'm afraid it still escapes me when trying to figure out how someone would, say, create a multicast capable VPN with 5 edge points. Any pointers to a good way to reduce my level of ignorance on this subject would be appreciated. Vendor literature doesn't bother me as long as the concepts are there. Regards, Michael H. -- Best Regards, Mounir Mohamed, CCIE#19573 (RS/SP) Senior Network Engineer, Core Team. NOOR Data Networks, SAE Mobile# +2-010-2345-956 http://mounirmohamed.wordpress.com http://www.linkedin.com/in/mounirmohamed
Re: .gov DNSSEC operational message
* Jay Ashworth: - Original Message - From: Matt Larson mlar...@verisign.com The new KSK will not be published in an authenticated manner outside DNS (e.g., on an SSL-protected web page). Rather, the intended mechanism for trusting the new KSK is via the signed root zone: DS records corresponding to the new KSK are already present in the root zone. That sounds like a policy decision... and I'm not sure I think it sounds like a *good* policy decision, but since no reasons were provided, it's difficult to tell. I don't know if it influenced the policy decision, but as it is currently specified, the protocol ensures that configuring an additional trust anchor never decreases availability when you've also got the root trust anchor configured, it can only increase it. This means that there is little reason to configure such a trust anchor, especially in the present scenario.
Re: Muni Fiber Last Mile - a contrary opinion
On 12/24/2010 1:39 AM, William Allen Simpson wrote: On 12/23/10 12:27 PM, Jay Ashworth wrote: I was poking around to see what the current received wisdom was as to average install cost per building for suburban municipal home-run fiber, and ran across this article, which discusses the topic, and itemizes several large such deployments that failed or had to be sold private. I'd be interested to see what comments nanogers have on this piece. I'm not well enough read to critically evaluate the guy's assertions. http://www.digitalsociety.org/2010/03/why-municipal-fiber-has-not-succeeded/ Always consider the source. Didn't we just have a George Ou cite that was debunked on this list? Subject: RE: Level 3 Communications Issues Statement Concerning Comcast's Actions Reminder: ITIF is an ultra-conservative, anti-government outfit: http://mailman.nanog.org/pipermail/nanog/2009-November/015552.html http://www.itif.org/content/about-us They are a wonk tank in DC. They have totally transparent funding and if you want to see it check their SEC and public filings. Todd ITIF doesn't give out information about its funding, which usually means it's industry lobbyist funded. Apparently in this case, big cable and probably big telco.
Re: Muni Fiber Last Mile - a contrary opinion
You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. I have talked to local techs that make the same trip each shift to fuel the generator during regular or minor power outages. Anything major, expect the service to die. Best bets: your state emergency operations center, hospitals, airports, grocery stores and possibly hotels. During the northeast power outage the biggest local problem was inability to pump gas out of underground tanks. The margin at the stations is low enough it's not worth it to have generators. Best off having the pipeline next to you and to use natural gas/propane if your needs can be easily met by it. Jared Mauch On Dec 23, 2010, at 1:09 PM, George Bonser gbon...@seven.com wrote: A 75% upsell rate to triple play packages seems ludicrous. I can't think of any industry that sees an upsell rate of 75% - can you (hell, I sold running shoes in high school, and the -target- upsell rate on shoestrings/socks/whatever-else was 15%). Nathan Well, I won't get rid of my wired phone for VOIP. The power where I live is subject to outage during storms but the phones work. I want a phone that works when the power is out for an extended period of time. At most, they would get double play from me (TV and Internet) and that' it. And based on discussions with others, many feel the same way about having their telephone depend on their cable box having power.
Re: Muni Fiber Last Mile - a contrary opinion
On 12/26/10 4:37 PM, Jared Mauch wrote: You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. I have talked to local techs that make the same trip each shift to fuel the generator during regular or minor power outages. Anything major, expect the service to die. Best bets: your state emergency operations center, hospitals, airports, grocery stores and possibly hotels. During the northeast power outage the biggest local problem was inability to pump gas out of underground tanks. The margin at the stations is low enough it's not worth it to have generators. Best off having the pipeline next to you and to use natural gas/propane if your needs can be easily met by it. During the last multi-hour power outage in my neighborhood I drove around to tour the area; sure enough there was a truck backed up to many (but not all) of them with a cable plugged in to the meter kiosk. I feel dirty using a facebook link, but: http://www.facebook.com/photo.php?pid=1265926l=999da42e39id=1327652570 However, residential internet access as a whole (DSL, cable) tends to have lower reliability than POTS or T1, so they still a leg to stand on if it matters to you. Power-wise though they're all on equal footing. ~Seth
Re: Muni Fiber Last Mile - a contrary opinion
On Dec 26, 2010, at 4:37 PM, Jared Mauch wrote: You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. I know this is true where FTTN overlays have been built. However, in the majority of California, at least, that is still more the exception than the rule and there is usually a Cat-3 Copper home-run for local dialtone. I have talked to local techs that make the same trip each shift to fuel the generator during regular or minor power outages. Anything major, expect the service to die. If nothing else, I expect various other components in the system (trunk overload, switch dialtone exhaustion, etc.) in anything major anyway. However, 24 hours of dialtone after something happens still exceeds the average cablemodem duration after the power flickers. Owen
RE: Muni Fiber Last Mile - a contrary opinion
-Original Message- From: Owen DeLong [mailto:o...@delong.com] Sent: Sunday, December 26, 2010 9:11 PM To: Jared Mauch Cc: NANOG Subject: Re: Muni Fiber Last Mile - a contrary opinion On Dec 26, 2010, at 4:37 PM, Jared Mauch wrote: You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. I know this is true where FTTN overlays have been built. However, in the majority of California, at least, that is still more the exception than the rule and there is usually a Cat-3 Copper home-run for local dialtone. [Frank Bulk] Here in the midwest each and every of the telcos that I've talked to or worked with feeds dialtone for their DSL customers from the same equipment that serves the DSL. To do otherwise would require a splitter shelf in each node. I have talked to local techs that make the same trip each shift to fuel the generator during regular or minor power outages. Anything major, expect the service to die. If nothing else, I expect various other components in the system (trunk overload, switch dialtone exhaustion, etc.) in anything major anyway. However, 24 hours of dialtone after something happens still exceeds the average cablemodem duration after the power flickers. [Frank Bulk] Some MSOs (including ourselves) have power systems (e.g. Alpha) in place throughout the plant to provide backup power for at least some time.
Re: Muni Fiber Last Mile - a contrary opinion
Once upon a time, Jared Mauch ja...@puck.nether.net said: You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. The ATT (formerly BellSouth) cabinets around here mostly have natural gas generators included, so they almost never go out. The cable companies, on the other hand, might have enough battery to last through a brownout. -- Chris Adams cmad...@hiwaay.net Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.
Re: Muni Fiber Last Mile - a contrary opinion
This thread is really interesting to see what's happening in .us with power. I've been following what's going on in .au with their ftth project (doing the whole country and pulling out the legacy copper systems, both tp and hfc) and there's been a bit of talk about issues in power cuts. I'm in Christchurch.nz where we've been having earth quakes every day, it's interesting to see the mobile networks go to half service (2G, no 3G on one network yesterday) when the quakes take out the suburban line transformers. D On 27/12/2010 5:07 p.m., Chris Adams wrote: Once upon a time, Jared Mauchja...@puck.nether.net said: You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. The ATT (formerly BellSouth) cabinets around here mostly have natural gas generators included, so they almost never go out. The cable companies, on the other hand, might have enough battery to last through a brownout. -- Don Gould 31 Acheson Ave, Mairehau, Christchurch, NZ Ph +64 3 348 7235 or + 64 21 114 0699 www.bowenvale.co.nz/ipv6 - Taking on the IPv6 Challenge!
Re: Muni Fiber Last Mile - a contrary opinion
On Dec 26, 2010, at 8:07 PM, Chris Adams wrote: The ATT (formerly BellSouth) cabinets around here mostly have natural gas generators included, so they almost never go out. The cable companies, on the other hand, might have enough battery to last through a brownout. Interesting - out of curiosity, how big are these cabinets/pedestals? Or would you by chance know details on the natgas power system they are using? Natgas is not ideal in a full-on disaster scenario like an earthquake, but probably could add another '9' onto service levels? I have never heard of or seen such a thing, but it is a really good idea. - Michael DeMan
Re: Muni Fiber Last Mile - a contrary opinion
Once upon a time, Michael DeMan na...@deman.com said: On Dec 26, 2010, at 8:07 PM, Chris Adams wrote: The ATT (formerly BellSouth) cabinets around here mostly have natural gas generators included, so they almost never go out. The cable companies, on the other hand, might have enough battery to last through a brownout. Interesting - out of curiosity, how big are these cabinets/pedestals? Or would you by chance know details on the natgas power system they are using? I don't know; I've just seen them driving by (since other cabinets don't have a gas meter, they stand out). It looks like they set up two cabinets about 6-8 feet wide, 3 feet deep, and 4-5 feet high (just guestimating). Maybe one cabinet for power/batteries/generator and one for the telco gear? Natgas is not ideal in a full-on disaster scenario like an earthquake, but probably could add another '9' onto service levels? I have never heard of or seen such a thing, but it is a really good idea. I'm in north Alabama; earthquakes aren't a significant problem here. The biggest I can remember was something like a 3.2, just enough to hear and feel. We're far enough from New Madrid that it shouldn't be an issue. Our main problem is severe storms (thunderstorms and tornados), the once-every-few-decades ice storm, and the random exploding transformer. -- Chris Adams cmad...@hiwaay.net Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.
Re: Muni Fiber Last Mile - a contrary opinion
On Dec 26, 2010, at 7:35 PM, Frank Bulk - iName.com wrote: -Original Message- From: Owen DeLong [mailto:o...@delong.com] Sent: Sunday, December 26, 2010 9:11 PM To: Jared Mauch Cc: NANOG Subject: Re: Muni Fiber Last Mile - a contrary opinion On Dec 26, 2010, at 4:37 PM, Jared Mauch wrote: You are likely already at the mercy of some local hut for your dialtone. Very few things home run to the co these days. It's unlikely any hut has more than 24 hours of battery. I know this is true where FTTN overlays have been built. However, in the majority of California, at least, that is still more the exception than the rule and there is usually a Cat-3 Copper home-run for local dialtone. [Frank Bulk] Here in the midwest each and every of the telcos that I've talked to or worked with feeds dialtone for their DSL customers from the same equipment that serves the DSL. To do otherwise would require a splitter shelf in each node. In California, that is, by and large, the CO. I have talked to local techs that make the same trip each shift to fuel the generator during regular or minor power outages. Anything major, expect the service to die. If nothing else, I expect various other components in the system (trunk overload, switch dialtone exhaustion, etc.) in anything major anyway. However, 24 hours of dialtone after something happens still exceeds the average cablemodem duration after the power flickers. [Frank Bulk] Some MSOs (including ourselves) have power systems (e.g. Alpha) in place throughout the plant to provide backup power for at least some time. Does that back up the cablemodem in the residence? If not, game over. Owen
Re: Muni Fiber Last Mile - a contrary opinion
On 12/26/10 10:04 PM, Owen DeLong wrote: On Dec 26, 2010, at 7:35 PM, Frank Bulk - iName.com wrote: [Frank Bulk] Some MSOs (including ourselves) have power systems (e.g. Alpha) in place throughout the plant to provide backup power for at least some time. Does that back up the cablemodem in the residence? If not, game over. this is a not-uncommon example of cable modem + voice cpe installed to insure that voip continues when the power is out, there are others... http://www.amazon.com/Motorola-SURFboard-SBV5220-Digital-Integrated/dp/B000TKHW5M Owen
