February 2008 - Test - lists.nanog.org

wanted: server hotel location(s) in SE,GR
by travis+ml-nanog＠subspacefield.org 28 Feb '08

28 Feb '08

Hi, I was wondering if anyone knew of server hotel locations in Sweden or Greece. More generally, if there is a good resource for me to look this up myself next time. Thanks in advance, Travis -- <URL:https://www.subspacefield.org/~travis/> Q: Who Would Jesus Waterboard? A: Matthew 5:38-42 For a good time on my email blacklist, email john(a)subspacefield.org.

4 3

IETF Journal Announcement (fwd)
by Lucy Lynch 28 Feb '08

28 Feb '08

All - Forwarded on Mirjam's behalf. Aside: If you find the Thaler/Aboba article on protocol success interesting you might also want to check out the plenary slides from the last IETF: http://www.ietf.org/proceedings/07dec/slides/plenaryt-1.pdf - Lucy ---------- Forwarded message ---------- Date: Wed, 27 Feb 2008 08:55:40 +0100 Subject: IETF Journal Announcement Hello, The new issue of the IETF Journal - Volume 3, Issue 3 - is now available at http://ietfjournal.isoc.org This issue's main focus is Security and Unwanted Traffic. Please also note the previous issue (Volume 3, Issue 2) which covered many topics related to IPv6. You can read this publication online or choose to download the full issue in PDF format. You can also keep up to date with the latest issue of the IETF Journal by subscribing to one of our RSS or Atom feeds. For comments or suggestions, please do not hesiate to contact us at ietfjournal(a)isoc.org. Kind Regards, Mirjam Kuehne Internet Society (ISOC)

5 5

Qwest desires mesh to reduce unused standby capacity
by Frank Bulk - iNAME 28 Feb '08

28 Feb '08

I found this section of a Telephony Online article interesting: Though networking trends point toward an evolution to mesh networks, nationwide carrier networks currently lack the physical diversity that would help carriers realize the benefits of true mesh networking, Poll said. Qwest, for example, has about three or four cross-country arteries that correspond to railway rights of way. Replacing that with a more mesh-like architecture would increase the complexity of operating the network. For one thing, it would require more uniformity in the capacities of various network routes. "You'd have to have units of 10 Gb/s traffic between all points on the network before this becomes economically viable," Poll said. "When you place IP capacity, you have to place a lot of standby capacity to carry traffic along different paths. If we could get greater physical diversity in place, we could greatly diminish the amount of standby capacity we have to take." In order to realize the benefits of mesh networking, Poll said, carriers will need to cooperate with each other more than they currently do, using fiber swaps to increase the geographic diversity of network paths. http://telephonyonline.com/access/news/ofc-qwest-optical-0226/ To keep this OT as much as possible, my question is if a mesh-configuration of backup routes (where one link could provide 'protection' for many) would be considered a sufficient replacement for SONET rings, or if the Qwest CTO is really trying to get out of providing sub 50-msec protected loops and encouraging L3 and above protection schemes, so that they can even further over-subscribe their network. Frank

5 6

RE: Yahoo! Mail/Sys Admin
by Justin Wilson 27 Feb '08

27 Feb '08

Hello Everyone, It's been a while since I posted on this topic, and unfortunately I'm still having trouble with Yahoo deferrals. The links that were provided in this post worked, but after the forms were received by what I *think* is a human I still got a canned reply. I've tried replying with specific details about our problem, but is either answered with another generic reply or not at all. We are running Imall, and each domain has it's own IP address. Queue Timer and Tries before returning to sender are set to 30 minutes / 5 attempts. According to yahoo they do want you to attempt to resend if you get a 421 error. SPF is also set on a per-domain basis. I'm not sure what else to try. Does anyone have a better understanding of how Yahoo greylisting works? Thanks in advance! Justin Wilson

4 3

RE: Power outages in Florida
by Scott Weeks 27 Feb '08

27 Feb '08

--- robert(a)ufl.edu wrote: <snip> Being in the lightning capital of the world systems are generally well protected from power issues. None of our peers have had any issues. --------------------------------------- There has been a lot of lightning there recently... http://flash.ess.washington.edu/TOGA_network_global_maps.htm http://webflash.ess.washington.edu/AmericaL_plot_weather_map.jpg http://www.nytimes.com/2008/02/26/us/26cnd-florida.html?hp says: "The company and state officials said the blackout began with a failure in an electrical substation near the Turkey Point nuclear station south of Miami, the division of emergency management said. That failure caused other parts of the system to shut down to protect the integrity of the electrical grid." scott

3 2

AS 2828
by Zaid Ali 27 Feb '08

27 Feb '08

I seem to have lost connectivity to AS 2828/XO communications. I can't get through to anyone on the BGP team at XO either. Anyone else experiencing this? Reply just to me, don't need to hold up thread time. Zaid

3 2

Re: Power outages in Florida
by Paul Ferguson 27 Feb '08

27 Feb '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -- "David Diaz" <davediaz.tech(a)gmail.com> wrote: >Being that Miami is my home town. I found it interesting today that in >areas affected by the black out services like verizon EVDO lost their >backbone connections. The towers were up with signal but no one could get >to the IP gateway. Driving a few miles to a lit area provided >connectivity. > >This is a concern for those of us with hurricane experience in the area. > Ya think? ;-) In fact, there were multitudes of digital cellular outages reported this afternoon all across central & south Florida. Not a very comfortable feeling, methinks. - - ferg p.s. In fact, I think this morning's outages down in Florida should shed some light on some serious issue in communications reliabilities... even CNN couldn't keep a good signal due to power issues. :-) -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.6.3 (Build 3017) wj8DBQFHxP6Yq1pz9mNUZTMRAvykAJ0av1YZIdXOT4vK/I7Py+yXWjZOGgCg/iiB angWtRCPTVvLVjP8UG5Ul2w= =zA7G -----END PGP SIGNATURE----- -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/

1 0

YouTube IP Hijacking
by Sargun Dhillon 26 Feb '08

26 Feb '08

As you guys probably know Youtube's IP's are being hijacked. Trace: ~ $ host youtube.com youtube.com has address 208.65.153.253 youtube.com has address 208.65.153.238 youtube.com has address 208.65.153.251 [Same /24] 701 3491 17557 64.74.137.253 (metric 1) from 66.151.144.148 (66.151.144.148) Origin IGP, metric 100, localpref 100, valid, external Community: 65010:300 Last update: Sun Feb 24 11:33:05 2008 [PST8PDT] 3491 17557 216.218.135.205 from 216.218.135.205 (216.218.252.164) Origin IGP, metric 100, localpref 100, valid, external, best Last update: Sun Feb 24 10:47:57 2008 [PST8PDT] So, it seems that youtube's ip block has been hijacked by a more specific prefix being advertised. This is a case of IP hijacking, not case of DNS poisoning, youtube engineers doing something stupid, etc. For people that don't know. The router will try to get the most specific prefix. This is by design, not by accident. This is a case of censorship on the internet. Anyways, I hope this doesn't get into a political situation, and someone stops this. What action are you going to take? Are you going to filter announcements from AS17557, or just filter that specific announcement? Considering youtube is a fairly high-traffic website I think that other operators are just going to start filtering that AS. This is a great example of global politics getting in the way of honest corporatism. This is also an example of how vulnerable the internet is, and how lax providers are in their filtering policies. I don't know how large Pakistani Telecom is, but it I bet its not large enough that PCCW should be allowing it to advertise anything.

20 22

Re: YouTube IP Hijacking
by Paul Ferguson 26 Feb '08

26 Feb '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -- "Christopher Morrow" <morrowc.lists(a)gmail.com> wrote: >> Well... If you want to work on one, I'm willing help shepherd it >> through >> the process. We even have a working group setup for that purpose. > >proposal for work in GROW? Actually, that sounds reasonable -- if GROW [1] outcomes are heeded by the operations community. Historically, it seems, the Internet operations community picks and chooses the IETF RFCs/BCPs that each ISP implements on a "one-off" basis. Something (else) that I have long admired is the way the RIPE community has built working groups around critical issues. I'm still convinced that the NANOG community -- perhaps in collaboration with RIPE and APNIC, et al -- should work to craft ISP "best current practices" in these areas, since ISPs don't seem to heed IETF documents, except when it serves their own business & operational practices. - - ferg [1] http://www.ietf.org/html.charters/grow-charter.html -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.6.3 (Build 3017) wj8DBQFHxMu8q1pz9mNUZTMRAk/wAJ9Mm3sWL9t1cCfy8sAhTd6DfxMIGwCfTauG 9lha9MMTiR4kPoPEHtBjfRQ= =atCM -----END PGP SIGNATURE----- -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/

2 1

RE: YouTube IP Hijacking
by Randy Epstein 26 Feb '08

26 Feb '08

>>This isn't the answer. If it were, there would be no car accidents, pilot >>error caused plane crashes, etc. > Probably the reason you dont need to have a pilot license... Sorry, what? > Dont get me wrong: I not the "Policy this/that" type but i think its a > good idea to ensure that ppl who run "basic network infrastructure" have > minimal clue of how to do this. Do you really believe that LIRs should be administering tests before issuing ASNs? Should vendors do the same prior to selling their gear? Take this further, electric company should require its customers to take a test before they are allowed to order service for fear they might electrocute themselves or the water company fearing customers may drown? > -- Arnd Randy

9 11