April 2002 - NANOG - lists.nanog.org

Fiber Cut - Pittsburgh, PA
by Streiner, Justin 24 Apr '02

24 Apr '02

AT&T Local Services (what used to be TCG) had a fiber cut shortly after midnight outside of their Allegheny Center switch site - multiple OC48s taken out. The damage was repaired by 5:00AM. The likelihood of impact to the big providers was fairly small, but I figured it would be of interest to operators in the Pittsburgh / western Pennsylvania area. We saw a few customer circuits drop, but no interior network impact. FYI jms

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RE: Sprint Connectivity.
by Steve Smith 23 Apr '02

23 Apr '02

We noticed a problem between Sprint and UUNET today, called UUNET and it looks like they cleared something up. -----Original Message----- From: Gyorfy, Shawn [mailto:sgyorfy@elinkny.com] Sent: Tuesday, April 23, 2002 3:35 PM To: 'nanog(a)merit.edu' Subject: Sprint Connectivity. We received a message from one of our peers (Internap) that Sprint was having internal latency issues. This is after we shut down connection to Internap - Because our Border router didn't feel like running at 97% =). Once we get notified by Internap that they have shut down their peer with Sprint - we reestablished a peer with them. Haven't seen any issues after that. Anyone have any information on what's up with Sprint? shawn

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Sprint Connectivity.
by Gyorfy, Shawn 23 Apr '02

23 Apr '02

We received a message from one of our peers (Internap) that Sprint was having internal latency issues. This is after we shut down connection to Internap - Because our Border router didn't feel like running at 97% =). Once we get notified by Internap that they have shut down their peer with Sprint - we reestablished a peer with them. Haven't seen any issues after that. Anyone have any information on what's up with Sprint? shawn

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AT&T Canada Problems?
by Peter Panagakos 23 Apr '02

23 Apr '02

Anyone see any AT&T Canada Internet outages? Around 15:35 EST... We lost complete reachability... and then from 15:45 intermittent access past the NAPs... until now. Peter Panagakos Network Security Specialist ----------------------------------------------- Nuvo Network Management 2650 Queensview Drive, Suite 260 Ottawa, ON, K2B 8H6 Direct: (613) 726-5038 Fax: (613) 721-1399 E-mail: ppanagakos(a)nuvo.com www.nuvo.com - Maximizing Network Availability ATTENTION The information contained in this e-mail is confidential and may be legally privileged. If the reader of this message is not the intended recipient you are hereby notified that any use, dissemination, distribution, or reproduction of this message is prohibited. If you have received this message in error please forward this message to postmaster(a)nuvo.com and delete all copies of this message.

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lucent vitalsigns
by Randy Bush 23 Apr '02

23 Apr '02

anybody use lucent's vitalsigns for snmp monitoring of a large scale ip network? if so, i would appreciate useful gossip. randy

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Re: Sorta OT: IP Multicasting
by Joe St Sauver 23 Apr '02

23 Apr '02

> 1.) Are there any pointers to URLs that deal with issues to set up for >both incoming and outgoing multicasts? I can't find many examples that >show this from an ISP point of view. The best tutorial IP multicast training materials I'm aware of are those at ftp://ftpeng.cisco.com/ipmulticast/training/index.html If you're looking for something more cookbook, I think the Internet2/Abilene multicast cookbook at http://www.abilene.iu.edu/mccook.html is also a nice resource (although obviously it is most useful if you are connecting via Internet2/Abilene). > 2.) Is it worth my effort? In other words, what % of the internet >audience is capable of receiving multicast IP from an audio feed? One data point is that there are over 4600 MBGP prefixes getting advertised (see, for example Marshall Eubanks' presentation at http://www.nanog.org/mtg-0110/ppt/eubanks/sld011.htm) Whether or not that's enough of an audience to make IP multicast worthwhile is a decision you'll have to make for yourself. But if nothing else, by enabling IP multicast, you should be able to receive technical content such as the NANOG meetings, IETF meetings, etc. (which I would assert is worthwhile in and of itself). > 3.) Are there any examples of audio feeds that use Multicast I can test >with? The University of Oregon makes KWAX (classical radio) available via IP multicast; if you are using IP/TV or a compatible client, select the session "UO Presents KWAX Classical Radio"), and we also have a variety of video sources up for folks to try. Regards, Joe

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Re: Network problems around Mae-West/San Jose CA
by Fred Heutte 23 Apr '02

23 Apr '02

There was a fire Monday afternoon in an old empty warehouse-sized grocery store on Foxdale Loop right next to the Capitol Expressway. This is nowhere near the data centers in SJ I know about. Above.net is downtown on W. San Fernando next to the Fairmont Hotel, for example, and MAE-West is at 55 S. Market. http://www.bayarea.com/mld/bayarea/3118835.htm

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Network problems around Mae-West/San Jose CA
by Sean Donelan 23 Apr '02

23 Apr '02

A few network providers seem to be having trouble with MAE-West in San Jose (I believe MAE-West ATM). The providers I can see, don't have problems reach MAE-West. I'm not in San Jose, but CalTrans indicates there is a large fire near the Capital City Expressway in San Jose. Does anyone know if the fire nicked some fibers in the area.

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Favored ISPs for IP VPN
by Darrell Kristof 22 Apr '02

22 Apr '02

Hi all! I wanted to poll the group and get some feedback (off-line if you'd rather not share with the group) your choices for US (nation-wide players ONLY) ISPs that do a good job providing IP VPN on their backbone and who you are most satisfied. We currently have proposals out to the major carriers and are evaluating those and wanted to get a smattering of information back from this group on who you would/wouldn't recommend and why. Any information you all can provide, including personal experiences, will be GREATLY appreciated. Our proposal consists of providing full T-1 coordinated access with an Internet connection and a DS-3 service at our core network. I want to stay on the providers backbone if at all possible to keep the SLA intact. This is for a network of approximately 160+ sites and growing to possibly double that size in 2-3 years. We are also entertaining the idea of using two different providers for redundancy. This is all going to be managed in-house with IOS 3DES VPN tunnels. Thanks in advance for your input. - Darrell ====================================================================== Darrell Kristof, Network Manager/Team Leader Whole Foods Market, Corporate Offices E-Mail: darrell.kristof(a)wholefoods.com

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Sorta OT: IP Multicasting
by Mike Nice 22 Apr '02

22 Apr '02

I've scanned the web for the latest information on working with IP Multicasting. There's a bunch of old (obsolete?) information dealing with MBONE, and pointers to http://www.ipmulticast.com which doesn't respond. 1.) Are there any pointers to URLs that deal with issues to set up for both incoming and outgoing multicasts? I can't find many examples that show this from an ISP point of view. 2.) Is it worth my effort? In other words, what % of the internet audience is capable of receiving multicast IP from an audio feed? 3.) Are there any examples of audio feeds that use Multicast I can test with? Thanks, Mike N

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