At 12:27 AM 5/29/2003 -0400, you wrote:
Sheesh. Heh.
We're still here.
Part of a rectifier in a Liebert UPS let loose, causing a momentary fire.
That is, until the FM200 quenched it.
Since there seems to be interest, I will post the post-mortem to the list.
I had a little 2000VA rackmount
I would recommend the DNS-Swap list
(http://www.ironclad.net.au/lists/dns-swap/). It's very low volume (2
posts/mo) but when someone actually posts something you generally receive
some good responses.
It covers the entire spectrum from swapping secondary for a few zones to
swapping colo for
Wednesday, May 28, 2003, 4:09:14 PM, Timothy wrote:
I'm looking for organizations or individuals that have existing
wireless (802.11, MMDS, etc) connectivity across international borders
in eastern Europe (former Soviet republics), Asia, Africa, or the
Middle East. Also of interest are
Hi guys,
What's the currently efficient/preferred way of updating (replacing, rather
than
adding) a record at http://puck.nether.net/netops/ :: NOC Telephone List ?
Cheers,
mh
--
Michael Hallgren, http://m.hallgren.free.fr/, mh2198-ripe
I had a little 2000VA rackmount Liebert UPS catch fire in 1997 and another
new and improved Liebert model almost catch fire about a year later.
What have others experienced as the failure mode(s) for their
UPS(s)?
We had a two-hour grid power outage here in Berkeley
On Thu, 2003-05-29 at 18:31, Robert Boyle wrote:
I had a little 2000VA rackmount Liebert UPS catch fire in 1997 and another
new and improved Liebert model almost catch fire about a year later. Both
were operating well within specified input, load, and temperature
parameters. I haven't
I've seen two previous APCs (both Matrixes) fry batteries... The
batteries balloon up, and get really hot, and are too big to extract from
the chassis. APC's solution to this is to have us take the entire UPS
offline for several days to completely dissipate the heat, and then try to
I've
Hi, NANOGers.
This post is on behalf of Alif Terranson. If anyone can lend a hand
or share insight, please pass it along! Thanks!
We have all manner of equipment freaking out at State
Street's POP, and can find no reason for it: M20's, BSNs,
Yurie's, etc. Some of this equipment
In message [EMAIL PROTECTED], Gerald writes:
On Thu, 29 May 2003, Bill Woodcock wrote:
I've seen two previous APCs (both Matrixes) fry batteries... The
batteries balloon up, and get really hot, and are too big to extract from
the chassis.
I've also personally witnessed an APC do this. I'm
On Thu, 29 May 2003, Steven M. Bellovin wrote:
There was a recent recall of some of their home/SOHO UPSs -- battery
overheating, with risk of fire.
Got the notice when it came out. Checked all our UPS's and none were
listed.
Gerald
On Thu, 29 May 2003, Gerald wrote:
On Thu, 29 May 2003, Bill Woodcock wrote:
I've seen two previous APCs (both Matrixes) fry batteries... The
batteries balloon up, and get really hot, and are too big to extract from
the chassis.
I've also personally witnessed an APC do this. I'm not a
On Thu, May 29, 2003 at 07:40:46PM +0200, Michael Hallgren wrote:
Hi guys,
What's the currently efficient/preferred way of updating (replacing, rather
than
adding) a record at http://puck.nether.net/netops/ :: NOC Telephone List ?
Cheers,
You need to really-really annoy me,
On Thu, 29 May 2003, David Raistrick wrote:
I've only heard one report of APC's that caught fire...and even then it
was just the carpet below that caught fire.
running to move my APC UPS...
Justin
On Thu, 29 May 2003, Dan Hollis wrote:
On Thu, 29 May 2003, Gerald wrote:
On Thu, 29 May 2003, Bill Woodcock wrote:
I've seen two previous APCs (both Matrixes) fry batteries... The
batteries balloon up, and get really hot, and are too big to extract from
the chassis.
I've also
Last time I asked the list for recommendations on how to solve a short reach
fiber problem I got some amazing answers and suggestions -- for which, I am
still appreciative of. I summarized for everyone who asked and will gladly
do so if anyone else would like to know.
I've got a new pickle I am
On Thu, 29 May 2003, Deepak Jain wrote:
I am trying to signal over a dark fiber (SMF) loop of about 200 miles.
(150mi on one leg and 50mi on the other). I would _like_ to find a 10GE
solution (say a XENPAK module that will do 150miles), but GE would do if it
supports some kind of xWDM.
As
(header trimmed)
Hello,
First off, we're all still alive here. Underlying root cause was a failure
of a capacitor in the rectifier section. We're not sure what actually
caused the failure of the failure of the capacitor, but it resulted in the
internals of the capacitor being ejected from the
On Thu, 29 May 2003, Robert Boyle wrote:
The reason for this rambling post is to ask if others have had similar
problems with other UPS brands. I think they should have enough fail-safes
built-in that they are never the CAUSE of an outage much less a fire! Based
on my experience and NAC's
On Thu, May 29, 2003 at 07:40:46PM +0200, Michael Hallgren wrote:
Hi guys,
What's the currently efficient/preferred way of updating
(replacing, rather
than
adding) a record at http://puck.nether.net/netops/ :: NOC
Telephone List ?
Cheers,
Jared,
You need to
UPSes (and UPS batteries) do fail, sometimes in catastrophic ways. I
would not design any critical system on the assumption that any particular
component won't fail. High availability is about designing for failure.
Sometimes there is a long time between failures, other times they occur
On Thu May 29, 2003 at 04:29:13PM -0400, Alex Rubenstein wrote:
From folks I've talked to (engineers and industry people), Powerware seems
to be known as the UPS that just works. I've yet to talk to one person who
had a powerware die on them. Myself included.
We are a Powerware house. We had
On Thu, 29 May 2003, Bill Woodcock wrote:
I had a little 2000VA rackmount Liebert UPS catch fire in 1997 and another
new and improved Liebert model almost catch fire about a year later.
What have others experienced as the failure mode(s) for their
UPS(s)?
We had a
On Thu, 29 May 2003, Simon Lockhart wrote:
On Thu May 29, 2003 at 04:29:13PM -0400, Alex Rubenstein wrote:
From folks I've talked to (engineers and industry people), Powerware seems
to be known as the UPS that just works. I've yet to talk to one person who
had a powerware die on them.
Or we could all take a page from the book of telecom, and run with DC systems.
No inverters involved, lots of parallel rectifiers and battery power just
sitting there.
If only the equipment manufacturers would stop gauging on price for
DC equipment/power supplies.
Dan.
Alex Rubenstein
On Thu, 29 May 2003, Alex Rubenstein wrote:
Even in instances where 'High availability' is designed, in the case where
one of the units has a failure that causes a fire and FM200 dump, either
the FM200 will still trigger an EPO, or the fire department will.
Why do you think most telephone
I'm afraid that there isn't a good commercially-available way to send any high speed
optical signal over a single continuous fiber for 200 miles. The physics simply
prohibit it.
The source of the problem is a limit on the maximum launch power into the fiber before
you start to see
We are opening a new facility in SF and are seriously considering the idea
of by passing a large UPS (150-225KVA)altogether and relay on a generator
400-450KW with small UPSes on each rack. A UPS failure would be limited to
a single rack, this way we could
My personal experience with ATSes is
At 04:39 PM 5/29/2003 -0400, you wrote:
A much cheaper and easier to implement external maintenance
make-before-break bypass will accomplish the same thing.
I've heard many a story of the paralleling gear causing the problem in the
first place, as well...
We have two MGE 150KVA UPSes at our Newton
One thing people seam to have forgotten is that with added redundancy comes
added complexity that is many cases out ways the gain.
Shaun
-Original Message-
From: Alex Rubenstein [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 29, 2003 1:40 PM
To: Sean Donelan
Cc: [EMAIL PROTECTED]
On Thu, 29 May 2003, N. Richard Solis wrote:
effects of high laser power on glass fibers. At last guess, that limit
was about +17dBm into standard SMF-28. Couple this with a typical
receive sensitivity of -12dBm for 10gpbs signals and you've for about
29dB of link margin to work with.
On Thu, May 29, 2003 at 04:29:13PM -0400, Alex Rubenstein wrote:
I have no direct experience with MGE, but I recall several multi-hour
outages in Jersey City Exodus, that I think had something to do with MGE
Correct. There were, if I recall correctly, a total of five in a short
period,
Arman wrote:
We are opening a new facility in SF and are seriously considering the idea
of by passing a large UPS (150-225KVA)altogether and relay on a generator
400-450KW with small UPSes on each rack. A UPS failure would be limited to
a single rack, this way we could
We run a
A situation recently popped up that prompted a question:
How many operations utilize any kind of dnsbl (or any other kind of third party
reporting service) on customer facing SMTP servers?
(customer facing == end users of your operation's service receive mail there)
I'm sure legal issues apply;
At 05:58 PM 28/05/2003 -0700, Herb Leong wrote:
E.B. Dreger [EMAIL PROTECTED] wrote:
#HL Date: Wed, 28 May 2003 17:28:45 -0700
#HL From: Herb Leong
#
#
#HLDoes anyone have an up to date list of ASN assignments?
#HL All of the usual places that I normaly check are now out
#HL of date.
Hi, NANOGers.
We're pleased to announce the release of version 1.7 of the Bogon
Route-Server Project. The major change in release 1.7 is the
addition of three more bogon route-servers to the bogon route-server
project, for a total of four. These are all managed by Team Cymru,
and provide
I agree, of course it is ludicrous to think otherwise.
It has always bothered me that we rectify AC power to store it in
batteries, then
re-invert it to power AC servers only for them to rectify it again
Dan.
Tom (UnitedLayer) wrote:
Or we could all take a page from the book of
On Thu, 29 May 2003, Sean Donelan wrote:
UPSes (and UPS batteries) do fail, sometimes in catastrophic ways. I
would not design any critical system on the assumption that any particular
component won't fail. High availability is about designing for failure.
Sometimes there is a long time
SD Date: Thu, 29 May 2003 16:53:43 -0400 (EDT)
SD From: Sean Donelan
SD Yep, tieing together redundant systems with parelleling
SD gears turns two independent systems into one co-dependent
SD system. In a failure situation, you want to compartmentalize
SD the failure. Loosing half your
It's not crazy, it's just not reasonable.
What I mean, of course, is that in a collocation model, where you have
customers bringing in computers, it is not reasonable to mandate that they
use DC power. You'd have no customers. Which, in turn, may be a benefit,
since you wouldn't need the power
Liebert makes one, actually. The model # escapes me, but we considered
using it for equipment that's single powered. (We have uber power
redundancy..)
-Original Message-
From: E.B. Dreger [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 29, 2003 7:38 PM
To: [EMAIL PROTECTED]
Subject:
Here you go:
http://www.liebert.com/dynamic/displayproduct.asp?ID=1042cycles=60Hz
-Original Message-
From: Temkin, David
Sent: Thursday, May 29, 2003 7:49 PM
To: 'E.B. Dreger'; [EMAIL PROTECTED]
Subject: RE: They all suck! Re: UPS failure modes (was: fire at NAC)
Liebert makes one,
Similar to: http://www.baytech.net/cgi-private/product?catagory=F-RPC+SERIES
and isn't Liebert.
On Thu, 29 May 2003, Temkin, David wrote:
Here you go:
http://www.liebert.com/dynamic/displayproduct.asp?ID=1042cycles=60Hz
-Original Message-
From: Temkin, David
Sent:
http://www.zocalo.net/woody/photos/03.05-Misc/removing-batteries.jpg
http://www.zocalo.net/woody/photos/03.05-Misc/ballooned-batteries.jpg
Yes, that is in fact a _Model T truck axle_. And I thought I was only
keeping it around as a LART. :-)
-Bill
Too bad a substantial amount of equipment doesn't allow for
redundant plugins. The ability to plug { servers | routers |
whatever } into two totally separate power feeds is nice.
Anyone for building a rackmount transfer switch for two inputs?
Assuming it didn't fail (!) -- would the economies
Dan Hollis wrote:
ok, what UPSes do telcos use (besides their monster battery arrays)
What's wrong with our monster battery arrays?
-Jack
nicholas harteau wrote:
We run a configuration similar to this, except we do failure per-row
with one APC Symmetra supporting between 3 and 6 cabinets, depending on
the projected load. In the past 2.5(?) years, we've had one controller
failure that did not cause an outage. All the batteries are
We have two MGE 150KVA UPSes at our Newton facility. When I designed the
electrical system, I originally specified a make-before-break 208V 450A 3PH
switch.
What is the saying, the lawyer who represents himself has a fool for a
client?? :)
This would enable us to isolate our internal
On Thu, 29 May 2003, Jack Bates wrote:
Dan Hollis wrote:
ok, what UPSes do telcos use (besides their monster battery arrays)
What's wrong with our monster battery arrays?
They dont tend to fit in 19 rackmounts
-Dan
--
[-] Omae no subete no kichi wa ore no mono da. [-]
We are a Powerware house. We had a large number of 3kVA and 6kVA units in
our previous data centre (no-one would stump up the cash for a large unit
so we had to buy them as we needed them). After about 5 years (very rough
figure), we've now had 3 or 4 units fail, sometimes in the UPS,
Thus spake Dan Hollis [EMAIL PROTECTED]
On Thu, 29 May 2003, Jack Bates wrote:
Dan Hollis wrote:
ok, what UPSes do telcos use (besides their monster battery arrays)
What's wrong with our monster battery arrays?
They dont tend to fit in 19 rackmounts
You wouldn't mount a monster array
I do on the ISP I consult with. We use:
dialups.mail-abuse.org (we pay for this)
relays.mail-abuse.org (we pay for this)
relays.osirusoft.com (all of it, 8 zones, 3 from outside sources)
spamhaus.relays.osirusoft.com
proxy.relays.osirusoft.com
socks.relays.osirusoft.com
Speaking on Deep Background, the Press Secretary whispered:
On Thu, 29 May 2003, Sean Donelan wrote:
The most annoying thing about UPSes is they fail at
exactly the time they are needed most.
Like tape drives..
ok, what UPSes do telcos use (besides their monster battery arrays)
In recognition of that power, the researchers have named the gene
nanog, a reference to the mythological Celtic land of Tir Nan Og,
whose fairy-like residents are said to stay forever young.
http://www.washingtonpost.com/wp-dyn/articles/A55817-2003May29.html
--
Joseph T. Klein
This space
At 12:28 AM 5/30/2003 -0500, Joseph T. Klein [EMAIL PROTECTED] wrote:
In recognition of that power, the researchers have named the gene
nanog, a reference to the mythological Celtic land of Tir Nan Og,
whose fairy-like residents are said to stay forever young.
Does anyone know of case studies of companies collapsing multiple ASes
into one on their network? I have the Allegiance Telecom presentation from
NANOG 27 but I would like to hear how other people have done it as well.
--Michael Dillon
I'm tasked with coming up with an IP plan for an very large lab
network. I want to maximize route table manageability and
router/firewall log readability. I was thinking of building this
lab with the following address space:
1.0.0.0 /8
10.0.0.0 /8
100.0.0.0 /8
I need 3 distinct zones which is
This report has been generated at Fri May 30 21:46:19 2003 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table
networks 1 and 100 are reserved for future delegation.
network 10 is delegated for private networks, such as your
lab.
if you use networks 1 and 100, you are hijacking these
numbers.
that said, as long as your lab is never going to connect
to the Internet, you may want to consider using the
Does anyone know of case studies of companies collapsing
multiple ASes
into one on their network? I have the Allegiance Telecom
presentation from
NANOG 27 but I would like to hear how other people have done
it as well.
We have to date collapsed 6 AS numbers into 1.
Approach was
Hi,
Other than the fire recently at NAC in their NJ NOC. Does anyone have any
positive or negative feedback about NAC?
Also does anyone have any recommendations about a decent colo facility?
Feel free to contact me off list.
Matt
Others have pointed out that I should stick to
RFC 1918 address space. But again, this is a
lab network and to use the words of another,
one of the things I want to do is make it much
easier to parse visually my route tables.
Think of it as a metric system type of numbering
plan. The 1 and 100
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