February 2011 - NANOG - lists.nanog.org

Re: US Warships jamming Lebanon Internet
by Denys Fedoryshchenko 14 Feb '11

14 Feb '11

On Tuesday 08 February 2011 01:42:42 George Herbert wrote: > On Mon, Feb 7, 2011 at 2:23 PM, Ryan Wilkins <ryan(a)deadfrog.net> wrote: > > On Feb 7, 2011, at 4:06 PM, Michael Painter wrote: > >> Hi Denys > >> I doubt it's intentional jamming since I've had the same problem. > >> Aegis radar is very high power in full radiate mode and as such creates > >> problems for Low Noise Amplifiers listening at 3.4-4.2 GHz. Someone > >> needs to talk to Microwave Filter Company. > >> http://www.microwavefilter.com/c-band_radar_elimination.htm > >> > >> --Michael > > > > +1 for Microwave Filter. They've helped me out in a couples jams before. > > They're very responsive and the products are good, too. > > I think people in San Diego and near Norfolk, VA have the same problems. > > The C-band frequencies are 2x those of the S-band (4-8 GHz for C, 2-4 > GHz for S); if the SPY-1 / SPY-1D radar is frequency hopping it may > well step on someone's C-band links at twice the radar's basic > frequency. Just need a filter to remove actual S-band frequencies > from C-band feeds. I try to install C-Band bandpass filter, no effect at all, so it is in-band interference. Putting foil (yes i try almost everything) near LNB doesn't affect interference level too.

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mailing list bounces
by Mark Andrews 14 Feb '11

14 Feb '11

It looks like one of nanog's outbound servers doesn't have a PTR record. Mark Received:from s0.nanog.org (207.75.116.162) by edge.atlasbiz.com (192.168.198.21 ) with Microsoft SMTP Server id 8.2.255.0; Sun, 13 Feb 2011 21:34:17 +0000 ; <<>> DiG 9.6.0-APPLE-P2 <<>> -x 207.75.116.162 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29686 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;162.116.75.207.in-addr.arpa. IN PTR ;; AUTHORITY SECTION: 116.75.207.in-addr.arpa. 10764 IN SOA dns.merit.net. ejd.merit.edu. 2011021202 28800 14400 2419200 14400 ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Mon Feb 14 09:54:42 2011 ;; MSG SIZE rcvd: 107 -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka(a)isc.org

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Little to No Connectivity on LLNW Delivered Content // AS22822 ... AS7132
by Raul Rodriguez 13 Feb '11

13 Feb '11

Will an ATT op comment on what looks like an outage (or the beginning of a connectivity tiff) regarding LLNW content (Netflix among others) delivered via GBLX and TiNet to AS7132 customers in Southern California? Here's the full path: AS22822 AS3257 AS7018 AS7132 Thanks. -RR

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Combining 10g tap ports
by Eric Gauthier 13 Feb '11

13 Feb '11

Hello, I'm wondering what are people's experience is with boxes, like those from Gigamon, to aggregate 10g span ports? Any recommendations? As background, we currently have a sensor network where we provide our InfoSec team with taps from various points in our network. In cases where we have redundant routers, we've taken a tap from each one, fed it into a switch, then span'ed the two ports into a third so that we can present them with a single feed for each location because, according to them, they can not re-assemble data from different interfaces on their sensors. We have an "opportunity" to revisit this design now that we're moving to 10g router interlinks. Eric :)

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Re: quietly....
by Jay Ashworth 13 Feb '11

13 Feb '11

----- Original Message ----- > From: "David Conrad" <drc(a)virtualized.org> > On Feb 13, 2011, at 7:56 AM, Joel Jaeggli wrote: > >> Of course, one might ask why those well known anycast addresses are > >> "owned" by 12 different organizations instead of being "golden" > >> addresses specified in an RFC or somesuch, but that gets into root > >> server operator politics... > > > > there are perfectly valid reasons why you might want to renumber > > one, > > Ignoring historical mistakes, what would they be? > > > the current institutional heterogeneity has pretty good prospects > > for > > survivability. > > "Golden" addresses dedicated to root service (as opposed to 'owned' by > the root serving organization) means nothing regarding who is > operating servers behind those addresses. It does make it easier to > change who performs root service operation (hence the politics). Exactly: it *centralizes control* over what the roots are. The second- and third-order resultants of that observation will be left as an exercise for the student; politics are off-topic for NANOG :-) Cheers, -- jra

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Old Annex question
by Brian Feeny 13 Feb '11

13 Feb '11

Sad but true, I still have a few of these in operation as terminal servers. In reading the documentation I could find it wasn't clear to me how to solve my issue. I use these to manage Cisco routers. How can I connect to a server, and then drop back to the CLI, so I can then connect to another server, and keep switching back and forth? I thought I could just set the attn_string to say "^A" and then I could just hit that and it would work, but it doesn't seem to. I basically want to emulate the same functionality you can get when you do ^^x on a Cisco terminal server (2509/2511/etc). here is how its configured right now: %rotary host1: 1(a)172.16.1.10 host2: 2(a)172.16.1.10 host3: 3(a)172.16.1.10 %gateway annex 172.16.1.10 net default gateway 172.16.1.1 metric 1 hardwired end So I connect to my annex by telnetting to 172.16.1.10, then I type say host1, but I want to drop back to the CLI, any ideas how to escape to CLI once connected? I figured that since many of you are from my same era and these were popular with ISP's of the day, someone here may know...... Brian

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None
by Mike Perkins 13 Feb '11

13 Feb '11

Sent from my iPhone. I blame all misspellings on the autocorrect.

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Internet blocked in Algeria?
by Joly MacFie 13 Feb '11

13 Feb '11

Any confirmation of internet blocking? http://bikyamasr.com/wordpress/?p=26849 As massive street demonstrations are met with widespread violence in Algeria, the country is reporting that many Facebook accounts have been deleted or blocked by the government, in an effort to stifle protests against President Abdelaziz Boutifleka, activists on Twitter reported around midday in the country. They also said that the government is working fast to cut off all Internet providers in the country. -- --------------------------------------------------------------- Joly MacFie 218 565 9365 Skype:punkcast WWWhatsup NYC - http://wwwhatsup.com http://pinstand.com - http://punkcast.com VP (Admin) - ISOC-NY - http://isoc-ny.org ---------------------------------------------------------------

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RE: SmartNet Alternatives
by Alejandro Acosta 13 Feb '11

13 Feb '11

Right, pretty good idea to look for other altermatives, few years ago I wouldn't agree, however my feeling says that Cisco competetitors have grown a lot, AAA-, -----Mensaje original----- De: Ryan Finnesey Enviados: 12/02/2011 17:03:32 Para: nanog(a)nanog.org Cc: John Macleod Asunto: RE: SmartNet Alternatives This is one of the reasons we are starting to look at Juniper for a new network build. It is my understanding we set software updates for life for free. Cheers Ryan -----Original Message----- From: Michael Loftis [mailto:mloftis@wgops.com] Sent: Friday, February 11, 2011 4:27 PM To: John Macleod Cc: nanog(a)nanog.org Subject: Re: SmartNet Alternatives Cisco is making noises that they'll eventually be restricting software access to ONLY those devices which have an active SmartNet contract associated to your CCO account. I don't know where this currently stands, and it sure will be a huge pain in my rear if/when it happens. On Fri, Feb 11, 2011 at 1:41 PM, John Macleod <JMacleod(a)alentus.com> wrote: > Just interested in other peoples experience to companies offering alternatives to SmartNet? > > Pros/Cons/Tradeoffs? > > We currently have a mix of SmartNet and internal parts supply. > > John > > > __ > John Macleod > Alentus UK Limited > Seymour House > South Street > Bromley > BR1 1RH > +44 (0)208 315 5800 > +44 (0)208 315 5801 fax > alentus.co.uk | alentus.com > > "Please consider the environment before printing this e-mail > > This e-mail (and/or any attachment) contains information, which is confidential and intended solely for the attention and use of the named addressee(s). If you are not the intended recipient you must not copy, distribute or use it for any purpose or disclose the contents to any person. If you have received this e-mail in error, please immediately notify the sender. The information contained in this e-mail (and any attachments) is supplied in good faith, but the sender shall not be under any liability in damages or otherwise for any reliance that may be placed upon it by the recipient, nor does it constitute a contract in any way. Any comments or opinions expressed are those of the originator not of Alentus Corporation unless otherwise expressly stated." > >

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Cruzio peering
by Jeroen van Aart 12 Feb '11

12 Feb '11

A Cruzio employee kindly provided me with the following information regarding their peering and connectivity. I pasted it below (with permission) because I thought it might be of use to others: "Cruzio maintains a backbone of wireless points of presence (POP) on various mountain tops overlooking the Monterey Bay, South San Francisco Bay, and Silicon Valley Regions. Cruzio wireless POPs are present on Mount Umunhum, Mount Allison, Loma Prieta and Black Mountain to name a few. Cruzio wireless POPs are fed from the Equinix San Jose facility. At Equinix, Cruzio is cross connected into a peering exchange to an aggregate of content providers which include Google, You Tube and several others. Non-peered connectivity is provided by Above.net who is also colocated in that facility. Cruzio leases dark fiber on the cable built and owned by Sunesys, which is also used by UCSC. This fiber cable links the Cruzio facility at 877 Cedar Street in downtown Santa Cruz with the Level 3 Sunnyvale facility 46 miles away. Connectivity to the Internet is provided by Level 3 and Cogent. A high-speed/high-bandwidth wireless link connects the Cruzio 877 Cedar facility with the Equinix San Jose facility via Mount Umunhum to provide a wireless failover to the fiber in event of a fiber outage. Cruzio wholesales AT&T DSL. All DSL traffic is aggregated over AT&T fiber to the 200 Paul Avenue facility where it is connected to the Internet through a variety of providers. While the fiber and new data center are being turned up and tested, Cruzio hosted servers remain connected over AT&T fiber to the he.net Fremont 1 facility. Connectivity to the Internet is through he.net, who are themselves connected and peered to multiple Tier 1 providers." -- http://goldmark.org/jeff/stupid-disclaimers/ http://linuxmafia.com/~rick/faq/plural-of-virus.html

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