On 29 Mar 2008, Paul Vixie wrote:
page 10 and 11 of http://www.panduit.com/products/brochures/105309.pdf
says there's a way to move 20kW of heat away from a rack if your normal
CRAC is moving 10kW (it depends on that basic air flow), permitting six
blade servers in a rack. panduit
Well, seeing as that most pad mounted transformers use mineral oil as a
heat transfer agent (in applications up to and exceeding 230kv), I don't
suspect it is of issue.
However, we've all seen nice transformer fires.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
Surly we should be asking exactly is driving the demand for
high density computing and in which market sectors and is
this actually the best technical solution to solve them
problem. I don't care if IBM, HP etc etc want to keep
selling new shiny boxes each year because they are telling
A bit of administrativia:
This thread generated over a hundred posts, many without operational
relevance or by people who do not understand how operators, well, operate,
or by people who really don't have any idea what's going on but feel like
posting.
I'd like to briefly summarize the
we get them
to present best practices at the next nanog!
-alex
Not if the hijackers have advertised a /24. Anything you advertise more
specific than /24 will be lost on many networks' filters.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Tomas L. Byrnes
Sent: Monday, 25 February 2008 8:49 AM
To: Michael Smith;
That's all they paid?
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Rod Beck
Sent: Thursday, February 14, 2008 11:31 AM
To: Bill Nash
Cc: North American Network Operators Group
Subject: RE: Area Social Activity
And to celebrate my first TransAtlantic IRU, I will buy the
This conversation is quickly spinning into discussion of politics and
terrorism.
Reminder to all, please stick to the *operational* aspects of this thread.
-alex [NANOG MLC Chair]
On Mon, 4 Feb 2008, Patrick Clochesy wrote:
I disagree... I think information warfare tactic could easily
.
That...is...perverted.
-alex [not speaking as mlc anything]
As long as the companies convince people that the cap is large
enough to be essentially the same as unmetered then most people
won't
care and will take the savings.
I don't agree.
When we sold boatloads of dialup in the mid to late 90's, people did not
like caps, no matter how high
If we define customer to be an average user of the provided service,
and
bandwidth to be transit pipe cost, then no, bandwidth is not the major
cost
of their service. However, if you're advertising an 'unlimited'
service
and want to keep your promises, you can't plan your network around
neteng
groups, that would be quite helpful. A good starting point for the search
is www.euro-ix.net, which lists european IXPs. Many IXP's have annual (or
more often) meetings of members, which serve similarly to NANOG. See:
https://www.euro-ix.net/news/meetevent/ for starters.
-alex
!
-alex [mlc chair]
, political discussions, and discussions about spam filtering
(other than operational, such as abuse@ or [EMAIL PROTECTED]) are off-topic for
nanog. Please keep it this way.
-alex [mlc chair]
-lineshared-dsl might be a challenge.
However, I recommend POTS + DSL, for additional OOB-ness, you can plug
your DSL modem into the OOB ethernet and your analog modem into OOB serial
network.
fwiw, we are providing dsl to 111 8th MMR, the one running the free wifi
there :)
-alex [not posting as mlc
the list. If you all want to live in a vague world, then
that's fine by me, but don't complain when you get complaints that arise
out of the vagueness.
Well, that's why MLC is paid big bucks to separate loony complaints from
real ones ;)
-alex
for the conference is
acceptable on the list. Mail operations are on-topic, although
tangentially. Spam filtering is definitely off-topic.
-alex [mlc chair]
of ddos (or
codered/nimda/etc).
-alex [not mlc anything]
[mlc]
.
Note: if you find yourself to have posted something that was tossed into
the category c) - please reconsider your posting habits.
As usual, I apologise if I skipped over your post in this summary.
-alex
set up by MLC.
If you want to discuss this moderation request, please do so on
nanog-futures.
-alex [mlc chair]
us some time before v4 address space is
exhausted, and much less painful than v6 deployment
Many: Old gear cannot be v6-enabled, but it can be 240-enabled
Dillon: This is not our decision, this is IETF/IANA decision.
-alex [mlc chair]
be bad (tm).
-alex
of posting to -announce, a direct email to
last-registered-email should be sent to each eligible voter reminding them
to vote - Some people who attend aren't on any mailing list. (actually, it
is an interesting data point, but probably impossible to gather correct
data on).
-alex
.
Reasons for offtopic-ness:
a) not internet operational
b) commercial
c) end-user
-alex [mlc chair]
, in the simplest possible terms, this
thread was a ridiculous waste of time of everyone involved.
-alex
Dear Colleagues,
The RIPE NCC received the AS Number Block 44032 - 45055 from
the IANA in September 2007.
You may want to update your records accordingly.
Best regards,
Alex Le Heux
RIPE NCC
problem is being solved?
-alex [not mlc anything]
Alright, this is all scary familiar and bringing back bad memories.
Wooden modem racks, POPs in disued bathrooms, demarcs so stuffed with
At one point, we had 200 pair installed into a two family house in rural
NJ. The pop was in the basement, which had dirt floors.
Or, the local phone
/?id=70
* Pages via DTMF
** Hylafax/asterisk
-alex [for mlc]
, but might be overkill if
you just have a single host sending messages.
-alex [not nanog mlc blah blah]
amusing, can we please keep the humour to the
minimum, while sticking to the operational content?
-alex (mlc chair)
to
nanog-l.
-alex [not speaking as mlc blah blah]
They should yield (approximately) the same result. But, to be
pedantic,
you haven't accounted for latency within the network.
Somebody should be whipped, either for:
2) You, for making even this aged arch-pedant wince. :-)
Ding!
Seriously, can I also add that RADIUS interim
I think this thread is obviously silly, so please refrain from posting
further on this and feeding the troll...
Thanks!
On Thu, 16 Aug 2007
[EMAIL PROTECTED] wrote:
Hi, I try adding google.com to my dns server to get more visitors but
google.com still show search engine. Please
My question is: what's the best algorithm for
constrcting broadband access record from radius
accouting packets?
Read the RFC. No, I am being serious.
Record Accouting-on packet arriving time -
record Accouting-Off packet's Acct-Session-Time
and Acct-Delay-Time -
The
Maybe marketing would learn to spell after a few costly mistakes.
Any policy strategy that relies on marketing people learning to spell is
flawed from the outset.
Domain tasting is a real problem. 1 year domain registrations are
cheap. Who then does the waiting period benefit? (hint: not
Maybe marketing would learn to spell after a few costly mistakes.
Any policy strategy that relies on marketing people learning to spell is
flawed from the outset.
Domain tasting is a real problem. 1 year domain registrations are very
cheap. Who then does the waiting period benefit? (hint:
below the Maling list FAQ.
-alex
traveled and has
never been west of the Mississippi!
I think at this point, its fairly clear what happened (fake sender, reply
that went to list etc) so continued discussion is rather fruitless.
Lesson to be learned: You cannot protect from human factors. :(
-alex (mlc chair)
/ripe-351.html
Best regards,
Alex Le Heux
RIPE NCC
Policy Implementation Co-ordinator
understanding. To be sure, you should
consult a real engineer who can stamp and seal your plans!
-alex
In fact, an EPO system is a single point of failure...
And, whether or not you need an EPO in your center is wholly up to you,
and how you design your center.
As mentioned at a recent seminar I went to:
If you do not need to install non-plenum rated cable below a floor, and
you require boxes
ends up writing their own systems to manage IP space as
part of general network management. Unfortunately, they end up being very
specific to the network in question (for example, my stuff is very geared
toward terminating a large number of vlans on a l3 switches, etc)...
--
Alex Pilosov| DSL
realistically, even if you have full source, it'll be good for the
ideas how to do things, it will be *very hard* to separate the IP
management out of everything else.
(IP management is maybe few hundred lines of perl pl/pgsql code total)
hth
-alex
into a
router on a whim, you are bound for future difficulties!
And when the routing table doesn't match, withdraw the route, and fire
the miscreant that failed to properly maintain the allocation data!
Unfortunately, I'll have to say again that this doesn't scale. :)
-alex
forums to do this.
Please follow any replies to this message to [EMAIL PROTECTED]
-alex (acting mlc chair)
and soliciting writers.
We may be going that direction. Are you volunteering?
-alex
, please refrain from adding to this thread.
-Alex (for the mailing list team)
Was this message sent because one or more members of mail admin team
expressed their own opinion and wanted thread to end or because others
(presumably more then one person to act on it) have complained?
Well
I think at this point, everything that could possibly be said about NAT
and security has been said.
Unless you have something profound to add which hasn't been mentioned in
this thread before, please refrain from adding to this thread.
-Alex (for the mailing list team)
Does anyone know of any good IPv6 training resources (classroom, or
self-guided)? Looking to send several 1st and 2nd tier guys, for some
platform/vendor-agnostic training.
Any clues?
Thanks..
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800
null-routing all BT netblocks. I'm wondering how
many others have already come to the same conclusion?
To paraphrase bandy rush: I encourage my competitors to do that.
-alex
Dear Colleagues,
The RIPE NCC received the AS Number Block 43008 - 44031 from
the IANA in April 2007.
You may want to update your records accordingly.
Best regards,
Alex Le Heux
RIPE NCC
disclosure, yes, I think there's
little point of doing this, unless you are seeking attention. Of course,
reporting a problem to vendor privately always makes sense.
I'm not sure the debate on public disclosure vs private falls under NANOG
AUP.
-alex
constitutes responsible. Note that those mailing lists are not NANOG,
where this subject is tangential.
-alex
address allocation directory one of
their goals?
And why don't they do all this with some 21st century technology?
Why doesn't vwl help by giving ARIN his changelog, if any?
-alex
the debogonising project can be found here:
http://www.ris.ripe.net/debogon/
Best regards,
Alex Le Heux
RIPE NCC IP Resource Analyst
that botnets will simply migrate away from DNS to some
other protocol.
-alex
On Sat, 31 Mar 2007, Gadi Evron wrote:
domains listed on http://isc.sans.org/, is that an authoritative site
of botnet hunters? If so, there are couple of surprises for you.
baidu.com listed there is a chinese equivalent of google, who'd get
very upset if its domain name got revoked.
(beware, weekend engineering and number pulling here)
If you have 250 fixtures, which are each (2) 4' T8 fluorescent bulbs,
which would make for (500) 32 watt bulbs, that would be 16 kw, or at
$0.13 cpkwhr, would be $1,497/month. But, don't forget, you'd have to
cool the heat load generated by
Best regards,
Alex Le Heux
RIPE NCC IP Resource Analyst
And on-demand DVR-type things which I believe will grow in
popularity. Of course, most of those are overlays which the SPs
themselves don't offer; when they wish to do so, it'll become an
issue, IMHO.
Which, by the way, is hitting main stream.
Amazon Unbox.
coast-to-coast
tickets. And I imagine hotels/food/etc is probably going to be quite a bit
cheaper than LA/SFO/etc.
-alex
this morning around 3 am, effecting 2 connections in that
You mean 'affecting.'
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
On Thu, 14 Dec 2006, Fergie wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
This may be far afield insofar as topic fodder, but I am curious if
anyone knows exactly what these two hops [9] [10] below, actually are?
Wouldn't you like to know?
--
Alex Pilosov| DSL, Colocation
or ...) on these lambdas.
-alex
On Mon, 30 Oct 2006, Deepak Jain wrote:
A few years ago, NANOG had a discussion regarding various CWDM vendors.
Repeatedly MRV was brought up as a good option for metro-area LAN type
applications.
There's been some discussions more recently, such as (coauthored by yours
truly):
On Mon, 30 Oct 2006, Deepak Jain wrote:
A few years ago, NANOG had a discussion regarding various CWDM vendors.
Repeatedly MRV was brought up as a good option for metro-area LAN type
applications.
There's been some discussions more recently, such as (coauthored by yours
truly):
You may have heard that the US and Canada are going to start requiring
passports for air travel between them beginning soon. That date is
currently set as 8 Jan 2007, which is before February NANOG. MERIT
has noted this on the web site, but a cursory check of my list
archives didn't turn
I'm seeing *.register.com down (including ns*) from everywhere. Just a
heads-up. Would be interesting to see the RFO for that one, including the
why we didn't have any DNS servers offsite or used anycast to at least
limit amount of damage.
-alex
From various vantage points, both /24s are routed exactly the same (7018
in NYC).
-alex
are their
sarbox auditors saying about it now ;)
Compliance of icann-accredited gtld-registrars with rfc2182 might be a
good subject for research (again, thanks to rs for idea)
-alex
On 26 Oct 2006, Paul Vixie wrote:
I'm seeing *.register.com down (including ns*) from everywhere.
They are apparently under a multi-gbps ddos of biblical
proportions.
i wonder if that's due to the spam they've been sending out?
Paul, this isn't nanae. Let's not sling accusations
meant that discussion whether or not register.com is spamming
isn't somewhat offtopic. Of course, DNS operations (and particularly
dealing with biblical scale ddos) is very much on-topic.
-alex
/lists/nanog/users/
No, this isn't us. We don't forward any mail to blogger or anyone else.
Cheers,
Alex
--
Alex Krohn [EMAIL PROTECTED]
an ATT ID.
In our facilities, we require all visiting telcos to produce company
identification, and between telcove/level 3, Verizon, MCI, and several
others, we have never had an issue.
I'd be a bit more suspicious that he didn't have ATT ID.
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED
I've never understood is, that, how a gov't issue ID (for the
purposes of allowing entry) is of any use whatsoever.
It's not as if someone is doing a instand background check to know if
the person is a criminal, or wanted, or whatever. It's trivial to forge
a gov't ID.
--
Alex Rubenstein, AR97
Maybe reboot all our routers at once or something?
Who wants to go first...? Then again, maybe better not...
philip
--
I suspect if we do this, when things 'come back up', we'll be under
200k.
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access
be about 50,000 gallons. That'd be about a quarter-million dollars
in glycol.
I'm tired now, time to climb back in my hole. In other words, don't get
me started on the datacenter density issue.
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET
kwatt-hrs per day).
There is a direct correlation between watts and btu's, and that is:
watts * 3.413 = btu
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
and returning it even 1/2 degree warmer is a
non-starter.
I'm amazed they let them put up tall cooling towers in the historic, scenic
Columbia River Gorge (sorry, old political battle flashback)
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800
, which is what any HVAC system
is rated in -- how many btus in an hour it can remove.
I apologize for the horrendous error, but all of the math stands.
Just sed s/btu/btu\/hr/g
(also, you can do from watt to btu/hr with the same 3.413 multiplier)
--
Alex Rubenstein, AR97, K2AHR, [EMAIL
. There is no
dimensionless conversion factor between the two.
Alright, I am sorry I missed that. It should read:
Error: you MULTIPLY 3.413 to go from watts to BTU/hr, not divide. It's
be more like 154,000,000 BTU/hr, /12000 or 12,798 tons.
Sorry! Sheesh.
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED
a computer in a well insulated box
and measuring power in vs. rate of rise of temperature. Volunteers? :)
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
delayed, I had to deal with an internal
routing challenge
for much of yesterday afternoon. --Matt)
I think I speak for the whole list when we say you have absolutely NO reason
to apologize, Matt.
In fact, I think we'll nominate you for Most Useful Meeting Attendee. :)
--
Alex Rubenstein, AR97
. it is ghetto like
opensores but you don't get the source to fix it yourself if vendor is not
being helpful.
-alex
will
excarcerbate these issues, making troubleshooting *harder*.
So, in conclusion, if you have a large number of clued linux hackers who
have nothing better to do, it may be a good idea. Otherwise, you'll
realize you are spending far more on sysadmin time than you are saving on
equipment cost.
--
Alex
or being held
down by lack of cooling for existing dense rack space. Basically
get ready to hold out your wallet.
Is it that?
Or, is it some of these companies no realising that charging $250 for a 20
amp outlet is less than their cost, even three years ago?
--
Alex Rubenstein, AR97, K2AHR
,
but a minimum of 3K more?
Thanks, Tuc/TBOH
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
is.
I went through 4 levels of management, and was informed that they no longer
had an abuse team -- that this was disbanded in a recent reorganization.
In short, it would appear that Wiltel is now selling pink contracts.
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
wrote:
On Tue, Mar 14, 2006 at 06:56:30AM -0500, Alex Rubenstein wrote:
You are aware Wiltel was acquired by Level(3) some time ago? Going to
www.wiltel.com would tell you this.
Then they need to update their contact information on the zones.
Anyway, it turns out that they are using a spam filter
On Wed, 8 Mar 2006, Martin Hannigan wrote:
I am looking for user experiences for people who have
purchased
transit from cogent in the 300Mbps or up range as far as performance,
stability, and any other measurable metric of quality you can come up
with.
We have heard a
(100,000,000,000 bits/sec) is 12,500,000,000 bytes/sec.
It would take 1,475,739,525 seconds, or 46.79 years for a counter wrap.
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
did the outage affect you or your
customers? Was this an unusually large event?
Thanks,
[EMAIL PROTECTED]
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
to be reliable? Can be open
source, we're using MRTG to track utilization but we need something that
really handles accounting for us.
Thanks,
-Drew
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
me crazy if you'd like, but I tend to think that peering on the
Internet is too important...
Do you think a thread which has made 100 posts on nanog, with people
coming out of the woodwork who I haven't seen in years, is something that
anyone things is not important?
--
Alex Rubenstein, AR97
Vice President
Crocker Communications, Inc.
Internet Division
PO BOX 710
Greenfield, MA 01302-0710
http://www.crocker.com
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
was about to release http://www.e-gerbil.net/ras/failure.jpg :)
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
being.
-M
--
Alex Rubenstein, AR97, K2AHR, [EMAIL PROTECTED], latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net
not.
It seems that the A RR has been pulled around 2005-08-30 21:00 UTC, so
this particular issue has already been resolved.
--
Fergie, a.k.a. Paul Ferguson
Engineering Architecture for the Internet
[EMAIL PROTECTED] or [EMAIL PROTECTED]
ferg's tech blog: http://fergdawg.blogspot.com/
--
Alex Rubenstein
Interesting.
About 1 year ago (early 2004), in a one month period, we had every
single MCI outstanding billing dispute resolved -- some even that were
over 4 years old. It seemed to me that the dispute resolution people
actually gave a hoot all of a sudden. And, some inside information I
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