December 2001 - Test - lists.nanog.org

Qwest Route Flaps, Houston PoP?
by Marius Strom 28 Dec '01

28 Dec '01

Anyone else connecting the Qwest Houston PoP (Tera or Giga PoP), or more specifically iah-edge-04 router, seeing a increased number of BGP flapping in the last few hours? Our BGP session has stayed active since a mysterious drop 1d09h ago, but we've seen every prefix that doesn't have an AS_PATH of ^209$ withdrawn and released twice within the past hour. *grumbles at the thought of finding someone who knows what BGP is at the Qwest customer service lines.* -- /-------------------------------------------------> Marius Strom | Always carry a short length of fibre-optic cable. Professional Geek | If you get lost, then you can drop it on the System/Network Admin | ground, wait 10 minutes, and ask the backhoe http://www.marius.org/ | operator how to get back to civilization. \-------------| Alan Frame |---------------------->

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RE: Single-vendor vs. best-of-breed network
by Irwin Lazar 27 Dec '01

27 Dec '01

>What, if anything, makes a multi-vendor (wide-area) network >successful and worth the risks over the "safe" single-vendor >network nobody gets fired for buying (you can probably guess >what vendor Powers my network now). I like thinking of where an organization wants to be on a risk/reward spectrum. Newer and/or point solution vendors exist to leapfrog the status quo and give you an advantage, which they do very well. This is particularly true on the optical side, where lasers, components, and software have all changed dramatically. The price you pay is risk. If you don't have capacity problems or take an incumbent role, then you would prefer a defensive, conservative strategy favoring the single-vendor solution. ------ We actually consider risk and choice of vendor to be to be separate principle areas. It is certainly easy to be risky with your use of technology while embracing a single vendor approach, think VoIP. I'd consider ripping out PBX's in favor of VoIP to be risky, and it is certainly a leading edge approach, yet you can buy this type of solution today from the larger vendors. In one example we worked with a customer who was considering using L3 switches with newly released WAN blades in the core of their network. The conservative approach was to stick with a more proven platform, the risky approach was to go with the newer product. Their principles were to use a single vendor, but they also had a principle to use only stable and mature technologies in the core, so they went with the more traditional routing platform. BTW, we also separate out vendor risk - e.g. we create a principle that determines how much vendor risk to accept. The extremes are only buying from proven vendors vs. buying from start-ups with low market share, provided there is some competitive advantage to be gained. Irwin

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OT: Cleaning Up - Strange Junk
by Charles Sprickman 26 Dec '01

26 Dec '01

Hi, This is a bit off-topic, but I figured I may find some folks here who may want some of this old stuff. We're cleaning out a closet here, and have some items that some of you may want for tinkering or historical reasons: -2 (maybe 3) Infotron SuperMux 380's -8 NYNEX and/or BellAtlantic T1 Smart Jacks (they won't take them back - they are non-HDSL models, some with wall-wart, some line-powered) If anyone wants this stuff before it goes in the dumpster, let me know. Thanks, Charles | Charles Sprickman | Internet Channel | INCH System Administration Team | (212)243-5200 | spork(a)inch.com | access(a)inch.com

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Anyone know if attbi.net's ever going to clean up their DNS?
by Joe St Sauver 23 Dec '01

23 Dec '01

Hi, Anyone know if attbi.com's every going to clean up their DNS issues? As far as I can tell, attbi.com is advertising number-to-name for their clients, but if you then check the claimed name by doing name-to-number for consistency, it fails. For example 12.225.116.241 resolves fine to 12-225-116-241.client.attbi.com but then if you try resolving the claimed address of 12-225-116-241.client.attbi.com to a dotted quad, you get a non-existent host/domain error. Obviously this is an issue if you have hosts using tcp wrappers in anti-spoofing (e.g., so-called "paranoid" mode). I tried the number I formerly had for the ATT Worldnet NOC (201-331-4773), but that number is out of service. The ATT IP Services NOC folks at 1-800-288-3199 disclaim any knowledge of ATT BI, and suggest trying 1-877-288-3485. If you call 1-877-288-3485, you get a nice little automated attendant talking about going out of business issues, but no NOC. Looking on the web, I see nothing relevant at http://198.178.8.101/listfaqs.jsp?category_id=19&category_level=1 (although maybe I should take the fact that they're using a dotted quad for their web server as a clue that DNS is not their strong suit). I've also had multiple users tell me that they've complained about this issue to their ATTBI customer support reps, only to be blown off by the first tier support reps; when they ask to talk to a supervisor, they are told "sorry, there's nothing we can do." We went through this all once before back in the days when ATTBI.Com customers were Excite@Home customers, and Excite@Home was finally able to grasp and fix the issue, but right now I'm about ready to start telling users with this issue that they should strongly consider changing broadband providers because it doesn't look like ATTBI's ever going to get their DNS squared away. Anyone seeing any evidence to the contrary? Thanks, Joe St Sauver (joe(a)oregon.uoregon.edu) University of Oregon Computing Center

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RE: The season: CHRISTMAS
by Steve Smith 23 Dec '01

23 Dec '01

Merry Christmas to all -----Original Message----- From: Jan-Ahrent Czmok [mailto:jan.czmok@gatel.net] Sent: Friday, December 21, 2001 6:29 AM To: nanog(a)merit.edu Subject: The season: CHRISTMAS Before it get's forgotten (and please no MEE 2) : Merry christmas to everyone, may everybody have a merry christmas and a happy new year. --jan -- Jan-Ahrent Czmok email: czmok(a)gatel.net Senior Network Engineer voice: +49-69-299896-0 Global Access Telecommunications, Inc. fax : +49-69-299896-40 internet solutions for business www : www.gatel.net

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The Cidr Report
by CIDR Report 22 Dec '01

22 Dec '01

This is an auto-generated mail on Fri Dec 21 23:00:00 PST 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 21Dec01 0) General Status Table History ------------- Date Prefixes 141201 104473 151201 104490 161201 104499 171201 104515 181201 104565 191201 104617 201201 104497 211201 104932 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 12187 Number of ASes announcing only one prefix: 7366 (4178 cidr, 3188 classful) Largest number of cidr routes: 773 announced by AS701 Largest number of classful routes: 1372 announced by AS701 1) Gains by aggregating at the origin AS level --- 21Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1179 909 270 22.9% Telstra Pty Ltd AS701 1372 1142 230 16.8% UUNET Technologies, Inc. AS4151 292 160 132 45.2% USDA AS577 317 193 124 39.1% Bell Advanced Communications Inc. AS16473 199 77 122 61.3% Bell South AS7018 795 682 113 14.2% AT&T AS6595 162 58 104 64.2% DoD Education Activity Network As AS705 286 183 103 36.0% UUNET Technologies, Inc. AS852 399 302 97 24.3% Telus Advanced Communications AS17557 169 80 89 52.7% Pakistan Telecom AS8010 123 38 85 69.1% PublicNet Communications, Inc. AS7046 306 225 81 26.5% UUNET Technologies, Inc. AS4755 213 132 81 38.0% Videsh Sanchar Nigam Ltd. Autonom AS19632 92 11 81 88.0% Metropolis Intercom S.A. AS1239 490 411 79 16.1% Sprint AS2048 183 107 76 41.5% State of Louisiana AS12302 109 33 76 69.7% MobiFon S.A. AS724 220 158 62 28.2% DLA Systems Automation Center AS703 284 222 62 21.8% UUNET Technologies, Inc. AS3464 160 98 62 38.8% Alabama SuperComputer Network AS4200 112 55 57 50.9% Apex Global Information Services, AS16758 63 6 57 90.5% IKON Office Solutions AS4323 368 312 56 15.2% Time Warner Communications, Inc. AS3908 321 265 56 17.4% Supernet, Inc. AS2149 326 270 56 17.2% Performance Systems, Inc. AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS1 514 458 56 10.9% BBN Planet AS6471 120 66 54 45.0% ENTEL CHILE S.A. AS209 297 246 51 17.2% Qwest AS855 144 94 50 34.7% Canadian Research Network For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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FYI ...
by Robert Mathews 22 Dec '01

22 Dec '01

F Y I .. Testimonials presented at: Electronic Communications Networks in the Wake of September 11th Subcommittee on Commerce, Trade, and Consumer Protection December 19, 2001 is now available via: http://energycommerce.house.gov/107/hearings/12192001Hearing458/hearing.htm Best. ************************************************************************** Robert Mathews Distinguished Scholar-In-Residence On National Security Affairs & U.S Industrial Preparedness @ University of Hawaii Telephone: 808.974.7383 (HI) / 315.733.3056 (NY) / 703.655.7124 (VA/WDC) Telecopier: 808.974.7693 (HI) / 315.733.1521 (NY) @ U.S. Air Force Research Laboratory 315.330.1868 (COMM) / 587.1868 (DSN) E.mail: mathews(a)hawaii.edu

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Generic Call for Speakers, Instructors for Apricot 2002
by Philip Smith 21 Dec '01

21 Dec '01

Forwarded for your information. APRICOT is the Asia Pacific region's annual Internet Operations and Technology conference, similar in format and concept to the NANOG conferences we know and love. If you are interested in contributing in any way, please read on... cheers, philip -- >CALL FOR APRICOT 2002 CONFERENCE PRESENTATIONS AND TUTORIALS > >Asia Pacific Regional Internet Conference on Operational Technologies >Bangkok, Thailand > >The APRICOT 2002 Program Committee is now preparing a schedule and >materials for the conference, and is seeking contributors to the >program. > >You can register your interest at >http://programs.regweb.com/apricot/2002/ if you would like to: > >· Offer a technical tutorial on an appropriate topic; and/or >· Be an instructor at the pre-conference workships; and/or >· Participate in the technical conference sessions as > a speaker or chair; and/or >· Convene and chair a Birds of a Feather (BOF) session. > >CONFERENCE THEME >The theme of APRICOT 2002 is Creating the Next Internet Wave. The >program committee is therefore seeking material consistent with the >theme of the growth and scaling of Internet infrastructure and >services in profitable ways. > >CONFERENCE SCHEDULE >2 January 2002: All Proposed Session Presentations and Tutorials Submitted >10 January 2002: Presentations and Tutorials Selected and Announced > >27 February to 3 March 2002: Pre-conference Workshops >3 March to 4 March 2002: Tutorials >5 March to 6 March 2002: Conference >7 March 2002: APNIC Meeting > >PROGRAM MATERIAL >Tutorial and Technical Conference Session topics that have been >successful in the past, or which have been requested for this year, >include: > >· IPv6 Introduction and Deployment >· IPv4 Address Planning, Conservation, Responsibility and > Migration to IPv6 >· Network Planning Tools, Techniques and Experiences >· Service and Server Scaling >· Broadband First/Last Mile Access Technologies > (Cable, Wireless, Fiber, Copper) >· Mobile and Wireless Technologies >· Internet Exchanges, Peering and Collocation >· Open Source Software and ISP infrastructure >· Redundancy and Reliability Issues and Techniques >· New Pan Asian Backbones >· Experiences and Issues in deploying Internet in Emerging Countries >· Content Delivery Networks, Streaming and Multimedia Infrastructure >· Introduction and Advanced Network Management and ISP > System Administration >· Hot Topics in Future Networks, Multi Protocol Label Switching > (MPLS), Quality of Service, and Voice over IP >· Traffic Engineering with Multi Protocol Label Switching (MPLS) >· High Speed Networking Technology: ATM, Gigabit Ethernet, > Switch Routers and Optical Dense Wave Division Multiplexing(DWDM) >· High Performance IP Backbone Routing and management, > Routing Policy and RPSL >· Voice over IP Standards, Efforts and Impacts on ISPs >· Computer Telephony Integration and Voice over IP for ISPs >· Network Security, Encryption, Firewalls and VPNs for ISPs >· BIND, DNSSEC, IPv6 DNS, Reverse and Multilingual DNS >· Unified Messaging, Scaling E-mail infrastructure and SPAM control >· Operations, NOC, Helpdesk and other support aspects > of ISPs in multi-lingual environments >· Supporting E-Commerce and ASPs >· Training the Trainers Workshops / Educators Track > >The program committee will consider proposals in any of these areas, >and also in new areas. If you have an idea for a tutorial or session >subject that is not listed, please feel free to submit it to us. > >When considering a subject, remember that the APRICOT audience is >mainly comprised of technical network operators and engineers with a >wide range of experience levels from beginners to multi-year >experience. There is a strong orientation to offer core skills and >basic knowledge in the tutorials and to address issues relevant to the >day-to-day operations of ISPs over the next 12 - 18 months in the >conference sessions. > >IMPORTANT NOTE: >APRICOT is a TECHNICAL conference and marketing and commercial content >is not allowed within the program. The program committee is charged >with maintaining the technical standard of APRICOT, and will therefore >not accept inappropriate materials. It is expected that the presenter >be a technical person and not a sales or marketing person. The >audience is extremely technical and expects that the speakers are >themselves very knowledgeable. All sessions provide time for >questions, so presenters should expect technical questions, and be >prepared to deliver insightful and technically deep responses. > >TECHNICAL CONFERENCE SESSIONS >The APRICOT Technical Conference Schedule is made up of 1.5 hour >conference sessions, each including up to 3 speakers (therefore >allowing 20-30 minutes per speaker). Sessions are chaired by persons >of appropriate expertise in the subject matter of the session, and >will include ample time for questions from the audience. If you would >like to give a presentation or chair one of the sessions, follow the >instructions at the end of this message for signing up as a speaker or >instructor. > >TUTORIALS >Tutorials are full-day workshops which focus on a particular subject >in-depth. They may be presented by a single Instructor, or a team of >instructors working together. Tutorial Instructors are encouraged to >also sign up to be a Conference Session Chair and/or Speaker as >well. You can sign up to give a tutorial, conference session >presentation and/or be a Session Chair by following the instructions >at the end of this message for signing up as a speaker or instructor. > >PRE-CONFERENCE WORKSHOP >APRICOT 2002 will be offering a pre-conference 4 day set of hands on >workshops for folks in developing nations or startup environments who >need to get up to speed on Internet infrastructure best practices. The >workshops will start on Wednesday 27th February at 9am and finish on >Saturday 2nd March at 6pm. > >The workshops will last for 4 days, and all attendees are required to >pre-register and attend from the beginning of the workshops. Topics >already proposed include DNS, IP Routing, BGP Multihoming, and ISP >Security. We would welcome any other contributions, for example ISP >Network Management, Deploying IPv6, Internet Policies, MPLS, etc... > >The idea of the workshops is to continue the excellent work done by >the ISOC in their past Network Training Workshop series. The workshops >aim to teach attendees from developing countries some of the skills >which are in common use throughout the developed Internet. > >Anyone who is interested in proposing a workshop session, offering >material which can be used for the workshops, or assisting with >presenting any workshops should contact Philip Smith pfs(a)cisco.com or >Bill Manning bmanning(a)vacation.karoshi.com or following the >instructions at the end of this message for signing up as a speaker or >instructor. > >FUNDING AND SUPPORT >Since APRICOT is a not-for-profit event that tries to keep the cost to >attendees low, we do not have too much money to pay the costs of >speakers. If you belong to a company or organization that can cover >you travel expenses, that is a big help. For those of you who do not >belong to such an organization, Apricot will cover 4 days of hotel >accommodation for Tutorial Instructors from Overseas. Apricot can also >consider covering economy class airfare up to US$1500 on a case by >case basis. > >Local Tutorial Instructors can receive a US$500 honorarium but no >Hotel accommodations. It is ok to split the work of a full day >tutorial between several instructors, but APRICOT may only be able to >cover the hotel accommodations and case by case airfare for one person >per Tutorial. Of course, Tutorial, Conference Chairs and Speakers will >not have to pay any registration fee to attend the rest of the >conference. > >SIGNING UP AS A SPEAKER, INSTRUCTOR OR CHAIR >If you would like to be considered as a tutorial instructor, >pre-conference workshop instructor, session speaker, session Chair or >a convener of a BOF, please go to >http://programs.regweb.com/apricot/2002/ . If you have received a >USERNAME/PASSWORD, use that to log in. Otherwise select the >SPEAKER Audience selection below the username/password entry box and >click on "CONTINUE". > >NOTE: If you are signing up speakers other than yourself, please >create an entry/registration for each speaker. If you do not yet know >who the speaker is, create a temporary username. Fill in the First >Name with a Speaker Number (i.e. Speaker1, Speaker2, etc) and the Last >Name with your company name for each session. Fill in your own contact >info for the other fields (Company, email, phone number, Fax). > >More information on the conference will be made available at >http:/www.apricot2002.net > >Thanks and if you have any questions, please contact me (email is best). >Robert J. Berger >Program Chair >Voice: +1-408-882-4755 >Fax: +1-408-490-2868 >rjbApricot(a)ibd.com

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RE: Single-vendor vs. best-of-breed network
by Irwin Lazar 21 Dec '01

21 Dec '01

-----Original Message----- From: Pete Kruckenberg [mailto:pete@kruckenberg.com] Sent: Friday, December 21, 2001 1:12 PM To: nanog(a)merit.edu Subject: Single-vendor vs. best-of-breed network I'm trying to make an informed decision whether moving to a multi-vendor best-of-breed makes sense for my organization. This is obviously a complex question, so I am hoping to tap some (figurative) "grey hair" advise from real-world experiences for the general areas I should focus on in making/justifying a decision. --------- We find the general trend is to go single-vendor whenever possible, primarily to reduce support and management costs. Engineers/Operators generally want single vendor, management generally wants best of breed (to put pressure on suppliers). Here are the guidelines we use when helping companies develop network architecture principles (including a position statement on this very topic): Single Vendor: Implications: With this principle, the enterprise puts its faith in the abilities and product direction of a single product or services vendor (per technology area such as switching/routing, or web hosting). When the product line fits the business aims of the enterprise, this is often a very efficient method of doing business. Pros: - Interoperability is eased at least for the products from same vendor. - System integration help is usually available at no cost or as a part of the purchase price of the hardware or software. - Total costs may be lower because of the lack of integration costs. - When network downtime or performance problems are encountered, "finger pointing" can be reduced with fewer vendors. Cons: - If vendor is not tracking mainstream or current technologies, the enterprise may find itself in a technological "dead end." - Due to lack of competition, prices may go up once the enterprise is locked into a particular vendor. - Exploiting new technologies that may be a high leverage technology for the enterprise may be very expensive to integrate from a vendor outside the strategic one. Best of Breed: Implications: This principle makes the enterprise the system integrator and places a premium on in-house talent; some of the "best-of-breed" hardware and software may never have been integrated in the past. Furthermore, after the physical integration is complete, it may be difficult to fully monitor or control the network. Pros: - Permits the enterprise to have the best possible type of product or service in each category. - Keeps the enterprise on the leading edge of networking technology. - Prevents being locked into one provider who may fail or who may not have the needed capabilities. Cons: - Can make network management and staff training more difficult due to multivendor environment. - Network complexity may be higher because of gateways and/or conversion boxes. - Difficult to fix blame when problems arise, due to "finger pointing" by the various network participants. irwin ------ Irwin Lazar Senior Consultant, Burton Group www.burtongroup.com <http://www.burtongroup.com> ilazar(a)burtongroup.com <mailto:ilazar@burtongroup.com> Office: 703-742-9659 Cell: 703-402-4119 "DrivingNetworkEvolution"

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East Coast Problem? Voice between NYC and DC
by Sean Donelan 21 Dec '01

21 Dec '01

Is anyone else having trouble with long-distance service (AT&T) between Washington DC and New York City today?

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