August 2002 - Test - lists.nanog.org

Re: ALGX problems?
by Chris Parker 15 Aug '02

15 Aug '02

At 03:00 PM 8/15/2002 -0500, Stanley, Jon wrote: >Welcome to installment 2 of ALGX leaking routes. If they have any >connectivity to speak of by the end of the day, I'd be amazed..... Well, it was one of ALGX downstreams leaking to them. Shame on them for not filtering their customer properly. How many times do we have to learn this lesson? I noticed this right as it happened ( or rather our NOC did ) as we dropped our ALGX peering sessions. We sent an email to their NOC and the downstream customer letting them know what happened. The downstream customer responded right away. The ALGX noc email bounced back to me. -Chris -- \\\|||/// \ StarNet Inc. \ Chris Parker \ ~ ~ / \ WX *is* Wireless! \ Director, Engineering | @ @ | \ http://www.starnetwx.net \ (847) 963-0116 oOo---(_)---oOo--\------------------------------------------------------ \ Wholesale Internet Services - http://www.megapop.net

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Re: Do ATM-based Exchange Points make sense anymore?
by Nenad Trifunovic 15 Aug '02

15 Aug '02

>Date: Fri, 09 Aug 2002 14:39 -0700 (PDT) >From: Mikael Abrahamsson <swmike(a)swm.pp.se> >Organization: People's Front Against WWW >To: nanog(a)merit.edu >Sender: owner-nanog(a)merit.edu >Delivered-to: nanog-outgoing(a)trapdoor.merit.edu >Delivered-to: nanog(a)trapdoor.merit.edu >Delivered-to: nanog(a)merit.edu >Subject: Re: Do ATM-based Exchange Points make sense anymore? > > >On Fri, 9 Aug 2002, Nenad Trifunovic wrote: > >> It appears that for analysis purposes one has to separate access >> from switching. How much payload one brings to the exchange depends >> on port speed and protocol overhead. In that light, Frame Relay >> can bring similar amount of payload as Ethernet (comparable overhead) >> and preserve good properties of ATM (traffic flow separation). > >What functionality does PVC give you that the ethernet VLAN does not? > I am not sure how this question may help analyzing the problem. For one thing, one can just pose the question the other way around (what functionality does VLAN give you that does not exist in Frame Relay (with closed user groups + LMI; that has been around for quite some time)). >What is the current max speed of frame relay in any common vendor >implementation (I'm talking routers here). > >-- What is current changes. Same technology can be applied to both Ethernet and Frame Relay encapsulation. Ability to bring more traffic to the exchange in itself may not be useful if there is no ability to switch it. >Mikael Abrahamsson email: swmike(a)swm.pp.se > nenad

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LISA: sysadmin conference, take 16.
by Gerald 15 Aug '02

15 Aug '02

I got a chance to go to last years LISA for the first time. I had been trying to go for 3 yrs. I have changed companies since then and am now working for a lot smaller company that can't afford to pay for these kinds of things which brings me to my question(s) for the list: How can an individual that has passed beyond "student" status afford the costs of LISA? I'm already a Usenix member in good standing, but even at those rates, to attend the whole week is quite expensive for an individual. (It's about equal to my rent here in NYC which isn't cheap) Just wondering if any nanogers have tried to justify this cost to themselves if they have had to pay for it, or if there's a hidden "my-company-and-I-can't-afford-that-much" button/link on their web page. TIA for input, and those that feel it's not on topic can reply to me off list. G - How are ya? Never been better, ... Just once I'd like to be better.

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$400 million network upgrade for the Pentagon
by Sean Donelan 15 Aug '02

15 Aug '02

Before now, I haven't seen any verifiable statements about how the networking infrastructure in the Pentagon was affected by the attacks last year. Not to diminish the loss of life, which was tragic, but networking people might be interested in this. Building a surviable network in such a small area, relatively speaking the Pentagon is small, is a much harder problem than diversity on a regional or even national network. http://www.fcw.com/fcw/articles/2002/0812/news-dod-08-12-02.asp "Among the problems DOD encountered Sept. 11 was a computing environment with many points of failure -- applications or databases that, if removed, could not be recovered and critical network links that, if down, could not be worked around. DOD officials have said that the terrorist attacks were a dramatic wake-up call. The attacks severed one of the Pentagon's main communications lines and destroyed some Army and Navy servers."

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ALGX problems?
by Stanley, Jon 15 Aug '02

15 Aug '02

Welcome to installment 2 of ALGX leaking routes. If they have any connectivity to speak of by the end of the day, I'd be amazed.....

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kudo's to netops security people
by John M. Brown 15 Aug '02

15 Aug '02

since this list bashes on people/orgs for NOT dealing with security matters, I thought I'd be contrary.. Qwest.net, FNSI.net, online-mac all sent swarms of bad packets towards a client lastnite. all where 100 percent responsive in solving / fixing the problem puppies quickly, no hassle, no fuss. Magic words were " I have a security issue with one of your users, may I please talk to your network security people". click click click, Hello, <name> Security person... I now return you to your normal NANOG SN john brown

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Re: Microslosh vision of the future
by David Howe 14 Aug '02

14 Aug '02

at Monday, August 12, 2002 2:17 AM, David Schwartz <davids(a)webmaster.com> was seen to say: > Microsoft can have whatever vision of the future they want and can > use any resources at their disposal to bring their vision to light. > Everybody has that right. Nope, monopolies don't - the rules for a monopoly are tighter for the very good reason the customer *can't* go somewhere else, he has to decide to buy from them or go without (and in a world where not accepting MS-formatted documents can lock you out of contracts you need to keep in business, the pressure to go with the crowd is very high indeed. There *is* a gun pointed at their head, but it is financial (and smoking :)

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Routing Protocol Security
by Jeff Doyle 14 Aug '02

14 Aug '02

HI, Can any of you cite cases where an attack has been carried out against a network's routing protocol (BGP or OSPF in particular)? My apologies if this question is too far off-topic, but if anyone knows of such incidents it would be the members of this group. Jeff

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E Djikstra Paases Away
by Martin, Christian 14 Aug '02

14 Aug '02

Not sure how many are aware of this... http://www.cs.utexas.edu/users/UTCS/notices/dijkstra/ewdobit.html

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NSPs filter?
by Abdullah Bin Hamad - Arabian 14 Aug '02

14 Aug '02

Good day, What NSPs do filter packets, and can really deal with DoS and DDoS attacks? UUNet? Best Regards, -Abdullah Bin Hamad A.K.A Arabian http://www.ArabChat.Org arabian(a)ArabChat.Org ___________________________________________________________ Chat with us yet? Try http://Chat.ArabChat.Org Make new friends, with ArabChat Now! Get your Free ArabMail http://Mail.ArabChat.Org

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