July 1997 - Test - lists.nanog.org

default routes on Ciscos
by Nick Lauriat 19 Jul '97

19 Jul '97

Hi there! Just curious if anyone out there knows of a way to configure default routes on a per interface basis on a Cisco. So that different interfaces had different default routes statically defined. Any thoughts? Thanks! Nick Lauriat

5 4

Re: silly tiers; treno
by Barb Dijker 19 Jul '97

19 Jul '97

A sales rep doesn't need the concept of tiers to spread misinformation and have delusions of granduer. Here's a question I got from a potential customer wanting a backup link from us but needing to de-program his boss. >My bosses' major concern is that UUNet claims Sprint as one of their >customers, and he wants proof that the COOP's Sprint connection is not >traveling on the UUNet backbone. I know that we have a dedicated link to >Cheyenne, but what happens after there? Barbara L. Dijker, Executive Director =============================================== Colorado Internet Cooperative Association 2525 Arapahoe Ave E4-280, Boulder CO 80302-6724 Voice: +1 303 443 3786, FAX: +1 303 443 5162 WWW: http://www.coop.net/

1 0

Re: DC fiber cut: field report
by Joe McGuckin 18 Jul '97

18 Jul '97

I thought the nitrogen pressurisation was to keep the copper cables dry...

1 0

Re: tiers? (fwd)
by Danny 18 Jul '97

18 Jul '97

Does everyone agree with this, it's the only response I have received thus far (and according to the list, the sender works for a tier 1 provider). [snip] Tier 1: _Owns the fiber_, Multiple coast to coast paths of significant bandwidth Tier 2: Reseller, Major connections (DS3/OC3) to multiple tier 1 providers. Possibly: Major connections to one (1) tier 1 provider. Tier 3: Everybody else. > > Anyone care to take a stab at what places a provider in > a given "tier-group"? Seems to me as though the large(st) > providers are a bit harsher (naturally) than the smaller > providers.

12 14

tiers. A measurement tool.
by Mark Kent 18 Jul '97

18 Jul '97

Clearly the definition of tiers varies over time. I think that the tools needed to "measure" the current tier-ness of providers are: a) a full bgp table (not just a full route table... if net FOO appears behind AS3561, AS1239 and AS1 then you want all three entries). b) a suitably large group of companies whose net access depends on how you extract a route table from the full bgp table c) a stopwatch d) a phone The procedure is basically to eliminate an AS from getting in the route table and timing how fast the phone rings. Then you just need a scale, something like this 0 - 2 minutes: Tier 1 2 - 10 minutes: Tier 2 etc. In some cases you can replace the stopwatch with a calendar. You can flesh out this methodology with extras like frequency of calls, duration of calls, language used in the calls, whether you are threatened or not, whether your family is threatened, etc. This technique has been used by some service providers by way of their peering strategy. -mark

5 4

RE: DC fiber cut: field report
by Steve Martin 18 Jul '97

18 Jul '97

Correct you are! Having spent 7 years of my career doing large OSP (OSP in this case is Outside Plant) installations around the country including direct buried, ducted and aerial I can confirm that these techniques are routinely employed. That makes 2 cable weenies! -S -----Original Message----- From: Jay R. Ashworth [SMTP:jra@scfn.thpl.lib.fl.us] Sent: Friday, July 18, 1997 2:38 PM To: Owen DeLong Cc: Dave O'Shea; stephen(a)clark.net; nanog(a)merit.edu Subject: Re: DC fiber cut: field report On Fri, Jul 18, 1997 at 11:59:11AM -0700, Owen DeLong wrote: > Gee, makes a good case for putting innerduct inside conduit and putting > gas through it just to discourage BIFF. :-) Am I the only one who's a cables and switches weenie enough to know that the telco's _already do this_? Large numbers of local multi-pair trunking cables are pressurized with nitrogen, and they put pressure drop alarms on them, so they know if one takes a hit. Cheers, -- jra -- Jay R. Ashworth jra@bayli nk.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592

1 0

BHTC
by Michael Kindig - Compute Intensive 18 Jul '97

18 Jul '97

BHTC - Back-Hoe Technology Certification There may be a need for all back-hoe aoperators to obtain a telco certification. Perhaps, these back-hoe unions could then sub-contract through telco agencies...picture this! "Hello, AT&T back-hoe. How can I help you?" or "Worry no-mo with UUnet Back-Hoe!" Michael Kindig - NETWORK INTENSIVE CUSTOMER ENGINEERING DEPT ____________________________________________________________ 8001 Irvine Center Dr 1130 __o URL :http://www.ni.net Irvine, CA 92618-2933 _ \<_ Phone:714.450.8400 mkindig(a)compute.com (_)/(_) Fax :714.450.8410

1 0

Outages in the News
by Dan Dale 18 Jul '97

18 Jul '97

http://www.mmp.co.uk/mmp/informer/netnews/HTM/718n1k.htm Are all our jobs in jeopardy? Dan

10 11

Re: DC fiber cut: field report
by Dave O'Shea 18 Jul '97

18 Jul '97

> As we left it struck me that this cut was not if, but when. And more cuts > like it. There was no protection for the cable, no markers of the cable > location. One of the interesting things about the startup of Wiltel was pulling fiber through decommisioned gas pipelines; not only do you get a 1/4" steel backhoe fade margin, but you get scary yellow signs that say "DANGER: HIGH PRESSURE NATURAL GAS LINE"; cut a piece of innerduct and your boss yells at you. Bust a gas pipeline and they can bury what's left of the offender in a thimble - if they can find it.

7 6

WILTEL FIBER CUT
by Alex Rubenstein 18 Jul '97

18 Jul '97

WilTel fiber cut. Loss Multiple DS1 failure. Wiltel is reporting a 'telemetry blackout' in the following cities: Terry Ranch, Ca Evanston, Wy, Kansas City, Mo Salt Lake City, Ut Oakland, Za pheonix, Az 'prt' 'lsa' Seattle, Wa San jose, Ca obtained by calling 800-MFS-CITY --- "Don't go with a spineless ISP; we have more backbone." Alex Rubenstein -- alex(a)nac.net -- KC2BUO -- www.nac.net net @ccess corporation, 201-983-0725 -- 201-983-0725

1 0