October 1996 - Test - lists.nanog.org

hole punching reality check
by randy＠psg.com 18 Oct '96

18 Oct '96

Provider P allocates a block of address space A to customer, I an ISP. I allocates a /24, call it B, out of that block to one of their customers, C. C later leaves ISP I and gets a wire directly from provider P. I wishes to give C time to renumber. I would expect the world to see the following announcements. A - I announcing a shorter prefix, A B - P announcing a more specific for the /24 allocated to C Is this not what we all expect? Why I ask is we have provider P telling I that they should stop announcing A and instead announce a bunch of prefixes around the /24. randy

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dial-in in Ann Arbor
by jon＠branch.com 18 Oct '96

18 Oct '96

Branch has a limited amount of unused dial-in modems (and ISDN) that we can make available to NANOG attendees for a couple of days. Please send me mail if you would like to make use of them. -- (313) 741-4442 http://branch.com/ Jon Zeeff Branch Internet Services Inc. jon(a)branch.com *** WWW Hosting Services, WWW Site Development and the Branch Malls ***

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Re: generators, etc....
by William Allen Simpson 18 Oct '96

18 Oct '96

> From: Curtis Villamizar <curtis(a)ans.net> > If we hold BBN to the same standards that the telco industry uses to > come up with 99.999%, BBN was up but "a few customers" experienced a > localized outage. This would be brushed off the same as the Illinious > AT&T fire at the POP that took out much of the Chicago suburbs for > about a week. It doesn't count against the 99.999%. (Otherwise AT&T > owes Chicago a couple thousand years of flawless service:). > I remember my complaint on the IETF list some years back, when NSFnet/ANS would routinely tout high availability, by eliminating any link outages from their report, as they were not under its control ... or route flaps greater than 5 minutes, for unknown reasons. ;-) WSimpson(a)UMich.edu Key fingerprint = 17 40 5E 67 15 6F 31 26 DD 0D B9 9B 6A 15 2C 32 BSimpson(a)MorningStar.com Key fingerprint = 2E 07 23 03 C5 62 70 D3 59 B1 4F 5E 1D C2 C1 A2

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RE: Windows/NT to break the Internet?
by Peter Ford 18 Oct '96

18 Oct '96

Hank, Have your tried to replicate your customer's problem? We have tested setting the prefix mask in the IP stack in NT 4.0 and it can be set to prefixes longer than 24. cheers, peter >---------- >From: Hank Nussbacher[SMTP:hank@ibm.net.il] >Sent: Wednesday, October 16, 1996 7:47 AM >To: nanog(a)merit.edu >Subject: Windows/NT to break the Internet? > >How long can the Internet last if every customer needs to get a /24? >That is what appears to be with Windows/NT 4.0. This server has >lately become very popular with small customers that install an NT >server and a few PCs and want a connection. ISPs up to know would assign >a /26 or perhaps a /27 or even a /30 to SOHOs like this. Windows NT 4.0 >when defining the address range as well as the DNS and inverse - only has >space in the form for 3 octets. They assume you are a /24 or larger. I >have had customers come back to me and say that they can't even enter >the 255.255.255.224 mask I gave them on their system since the NT doesn't >support it. Let alone the problems with inverse subnetting that there >is a draft RFC out there that almost everyone follows. Seems to have >slipped by the people in Oregon, though. > >I have been very careful up till now to make optimal use of IP address >space but I fear with the plenthora of WinNT 4.0s out there we will see >2% utilization of IP address space in the future. > >Am I missing something here on WinNT installs? Or is Microsoft gonna >cause the IP address space to expire sooner than we had planned? > >Hank Nussbacher >IBM Israel > >

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Re: GigaRouter (Was Re: Cisco as Big Brother))
by John G. Scudder 18 Oct '96

18 Oct '96

At 12:49 AM -0500 10/18/96, Jeremy Porter wrote: >So did they get all the nasty crashing bugs out of >Netstar's broken version of gated? At 8:46 AM -0400 10/18/96, Dima Volodin wrote: >You said - "gated"? Oh my gawd... It's very popular in some circles to bash gated; I'm not quite sure why. I'm seldom able to get specific, substantive criticisms from people who make comments like these, other than to say that the configuration language is not obvious and not well-documented (I agree, for now). Like any piece of software, gated does of course have some bugs in it, but I haven't seen evidence that it has more or more egregious bugs than other routing protocol implementations. And it gets a lot of things right that some people don't -- for example, it sends withdraws only for routes it has announced. I could go on, but I won't. The bugs are, of course, being worked on as they are found, just as with any other software. IMO gated's stability is pretty decent at this point. Likewise, it's missing some features, which are also being worked on. The proof of the pudding is of course in real-world use. As I assume most people on this list know, more than one large, respected backbone operator uses (or has used until recently) gated as their routing software, for quite some time. I've seen no evidence to suggest that gated is problematic for them; quite the contrary. Regards, --John -- John Scudder email: jgs(a)ieng.com Internet Engineering Group, LLC phone: (313) 669-8800 122 S. Main, Suite 280 fax: (313) 669-8661 Ann Arbor, MI 41804 www: http://www.ieng.com

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test
by sugeno＠mailserver.telehouse.com 18 Oct '96

18 Oct '96

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Laptop 10BaseT?
by Kent W. England 17 Oct '96

17 Oct '96

At 11:23 AM 17-10-96 -0400, William B. Norton wrote: >Randy - > >The plan is get a couple of hubs and string a handful of thinnet lines to >the back of the room for the laptop crowd. People seemed to like this setup >at D.C. so we're going to do that again. There is also a computer lab down >the hall in the adjacent building with a hundred or so machines. > >Bill > Certainly a big improvement, but I have an Xjack Ethernet PCMCIA card. 10BaseT is a big win for me. Any chance we could have some 10BaseT along with the thin coax? Then I can leave my coax dongle at home. Thanks in advance for better connectivity. --Kent

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Re: Are there plans to do MBONE broadcasts of the upcoming meeting?
by Eric Kozowski 17 Oct '96

17 Oct '96

>Thanks! As I will be there the previous day, I will even help setup if you >are short thumbs. > >randy > I'll be there mid afternoon on the 23rd and am able to help, if necessary. -- Eric Kozowski Senior Network Engineer eric(a)structured.net Structured Network Systems, Inc. (503)656-3235 FAX Better, Cheaper, Faster -- pick any two. (800)881-0962 Voice http://www.structured.net/ "Providing High Quality, Reliable Internet Service" -- 56k to DS1

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Re: Internet II is coming...
by Peter Lothberg 17 Oct '96

17 Oct '96

> > data, after SONET, ATM, IP and TCP overheads. > > > > Perhaps, I missed your point... > > Explicit: 6meg is not very fast for an uplink speed for a whole > ISP. > Implicit: There seems to be a lot of: "It's ATM so it must be > fast" going around. This conclusion does not follow. > > regards, > fletcher To move IP packets, it will always be faster without ATM than with ATM at any given linerate. The rest is pricebstructure, tarrifs, politics and marketing. --Peter

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Re: Cisco's AIP vs HSSI
by Peter Lothberg 17 Oct '96

17 Oct '96

> I suppose my answer could be refined as: > > o If you need an ATM solution, use the AIP card. > > o If you merely want a DS-3 or slower point-to-point link between > two routers, test both solutions, (or talk to someone who has), > to determine which solution has better performance; or > > o If you want a point-to-point connection between two routers at > speeds faster than HSSI can support (a bit more than 45 Mbps, > I think) use the AIP card. > > Again, you should also consult your router vendor. They should be giving > you all this information and more. For example, you might discuss a > OC-3c IP over SONET solution for point-to-point connections. > -tjs I would suggest the POS card over the AIP card for a local-interconnect.... -Peter

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