One of the places where I worked had a bunch of networking gear and
around 12x1U servers all squeezed into a shower stall There was a
cardboard sign hanging from the faucet saying WARNING!!! Do not turn
on
W
On Sep 10, 2007, at 11:38 AM, Leigh Porter wrote:
We used to have a
On Aug 10, 2007, at 1:55 AM, Paul Reubens wrote:
How do you engineer around enterprise and ISP recursors that don't
honor TTL, instead caching DNS records for a week or more?
A friend of mine was working for a place that performed some service
on data (not important what, you send them
On Jul 26, 2007, at 12:16 AM, [EMAIL PROTECTED] wrote:
On Wed, 25 Jul 2007 12:43:17 PDT, Roy said:
Funny story about that and the EPO we have here...
...
Story #1
Story #2
Story #3
Story #4
I'm still working at the place mentioned in a previous post -- I was
only there for 3
Or:
So I'm working at this place that is really cheap... Our CTO
believes that it is stupid to pay for electricians that have
experience working in datacenters, because after all, power is power,
right?
So, he calls a bunch of people in the Yellow Pages and hires the
cheapest guy he
On Jul 24, 2007, at 5:34 PM, Iljitsch van Beijnum wrote:
On 24-jul-2007, at 15:27, Prof. Robert Mathews (OSIA) wrote:
Looking at this issue with an 'interoperability lens,' I remain
puzzled by a personal observation that at least in the publicized
case of Duke University's Wi-Fi net
On Jul 25, 2007, at 3:35 PM, Patrick W. Gilmore wrote:
On Jul 25, 2007, at 2:03 PM, Tuc at T-B-O-H.NET wrote:
If they can be avoided, why do we put up with them? Do we really
want our colo in downtown San Francisco bad enough to take the risk
of having a single point of failure? How can
Adding to the random speculation pile this just arrived in my mailbox:
--
Cisco Security Advisory: Wireless ARP Storm Vulnerabilities
Advisory ID: cisco-sa-20070724-arp
So, when you say pickup again after 15-20 seconds do you mean that
it takes 15-20 seconds to ramp back up to the original speed or that
the line is basically idle for 15-20 seconds before any packets start
flowing again? If the latter, I'd suggest that you take a look at the
apps some
everything (and no, the network isn't
documentation)
2: Gamers are weird.
3: Making changes to your network in anger provides short term
pleasure but long term pain.
---
Warren Kumari.
http://www.kumari.net
On Jun 19, 2007, at 2:05 PM, [EMAIL PROTECTED] wrote:
On Mon, 18 Jun 2007 21:18:06
On May 14, 2007, at 7:57 PM, Donald Stahl wrote:
I'm very happy about the Juniper devices I manage. They're
expensive but
very reliable, and their config interface has lots of unique
features.
Juniper's greatest asset over Cisco is the single software image
for all their systems. In my
On May 2, 2007, at 2:58 PM, Scott Weeks wrote:
--- [EMAIL PROTECTED] wrote:
On 5/1/07 7:19 PM, Scott Weeks [EMAIL PROTECTED] wrote:
: Randy's MUA automatically deletes email sent directly to him...
Probably because you have a 12+ line .sig full of lawyer-speak.
Both practices arguably
On May 2, 2007, at 4:01 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Warren Kumari wrote:
On May 2, 2007, at 2:58 PM, Scott Weeks wrote:
--- [EMAIL PROTECTED] wrote:
On 5/1/07 7:19 PM, Scott Weeks [EMAIL PROTECTED] wrote:
Randy's MUA automatically deletes email sent directly to him
On Apr 19, 2007, at 10:17 AM, Robert E. Seastrom wrote:
With certain susceptible Sun CPUs which were popular during the last
sunspot maxima, this was actually demonstrably true (and acknowledged
by Sun), so don't laugh too hard.
Yup, Sandia National Labs made a radiation hardened Pentium
On Apr 12, 2007, at 10:04 AM, Gian Constantine wrote:
I agree. The throughput gains are small. You're talking about a
difference between a 4% header overhead versus a 1% header overhead
(for TCP).
One of the benefits of larger MTU is that, during the additive
increase phase, or after
On Apr 11, 2007, at 11:28 AM, J. Oquendo wrote:
[EMAIL PROTECTED] wrote:
* PGP Signed by an unverified key: 04/11/07 at 11:21:15
On Wed, 11 Apr 2007 07:07:19 EDT, J. Oquendo said:
these so called rules? Many network operators are required to
do a lot of things, one of these things should
that you should give
up, but rather that a different approach is needed. Understanding
this is harder than understanding why you cannot grow your network
just by buying more X.
W
--- [EMAIL PROTECTED] wrote:
From: J. Oquendo [EMAIL PROTECTED]
To: nanog@merit.edu
Cc: Warren Kumari
On Apr 4, 2007, at 11:57 AM, [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
[SNIP]
That is really a separate issue. This discussion is about limiting the
damage caused by domains which do rapid NS switching. If we know which
domains are new, DNS operators could put them on probation and only
As far as I remember there was a DC in New York (for some reason
Globix springs to mind) that did this... It was really cool, apart
from when it messed up and sent you to the wrong cabinet
W
On Apr 2, 2007, at 5:09 PM, Gregori Parker wrote:
I've been in there many times over the
On Feb 4, 2007, at 2:49 PM, Jon Lewis wrote:
On Mon, 5 Feb 2007, Simon Lyall wrote:
On Thu, 1 Feb 2007, Jay Hennigan wrote:
Set up a nameserver there. Configure it to return 127.0.0.2 (or
whatever the old MAPS reply for spam was) to all queries. Let
it run
for a week. See if anything
The main issue with Flourinert is price -- I wanted some to cool a
20W IR laser -- I didn't spend that much time looking before I just
decided to switch to distilled water, but I was finding prices like
$300 for a 1 liter bottle (http://www.parallax-tech.com/
fluorine.htm). I did find
On Jan 25, 2007, at 12:49 PM, Warren Kumari wrote:
The main issue with Flourinert is price -- I wanted some to cool a
20W IR laser -- I didn't spend that much time looking before I just
decided to switch to distilled water, but I was finding prices like
$300 for a 1 liter bottle (http
On Jan 3, 2007, at 9:07 AM, D'Arcy J.M. Cain wrote:
On Wed, 3 Jan 2007 16:39:40 +
Simon Waters [EMAIL PROTECTED] wrote:
On Wednesday 03 January 2007 16:29, you wrote:
On Wed, 3 Jan 2007, James Baldwin wrote:
Anyone else getting a 403 Forbidden when trying to access
http://cisco.com?
On Nov 13, 2006, at 9:20 AM, chuck goolsbee wrote:
[SNIP]
** I assume it is myth, but I've never heard anyone from Google
make any statements that definitively debunks it. Debunking this
pervasive among webmasters and SEO Experts myth sure would be a
very UN-evil thing to do if true
On Oct 23, 2006, at 10:57 AM, Roland Perry wrote:
In article [EMAIL PROTECTED], John A.
Kilpatrick [EMAIL PROTECTED] writes
The fellow I chatted with at ATT said they are not allowed to
hand over their badge because it would compromise their security.
My tech said the same thing. That
On Sep 6, 2006, at 5:11 PM, Christopher L. Morrow wrote:
On Wed, 6 Sep 2006, Stephen Sprunk wrote:
Because Comcast's tools are broken and when other mail admins or even
their own customers call them on it, they're not even competent
enough
to understand the complaint and refuse to
On Jul 27, 2006, at 12:25 PM, Robert E.Seastrom wrote:
[EMAIL PROTECTED] writes:
I've had this APC Matrix 5000 with 3 XR battery packs for almost 6
years
As others on the list have noted, your batteries are almost certainly
ready to head off to the battery recycler.
In terms of what to
My favorite was always the (potential) customers who would call up
and ask Can I get the Internet in my house? -- I would always
answer That depends, how big is your house?, but they NEVER got
it...
On Jun 23, 2006, at 7:09 AM, Jason Gauthier wrote:
Sounds like our typical
On Jun 20, 2006, at 12:18 PM, David W. Hankins wrote:
IBM and Georgia Institute of Technology are experimenting with
silicon-
germanium, it is said here:
http://tinyurl.com/g26bu
I find this interesting having just attended NANOG 37 where some
manufacturers of network devices told
a time, Warren Kumari [EMAIL PROTECTED] said:
Nope, all this says is that with sufficient cooling you can go
faster. What we need is going faster with less cooling.
Read the article, not the headline. They got 350GHz at room
temperature (which is a lot more interesting than 500GHz a few degrees
On Jun 20, 2006, at 4:29 PM, Richard A Steenbergen wrote:
We already collectively wasted our time deploying MD5 passwords
over a big
scare that turned out to be nothing more than someone cracking open
the
manual and rediscovering how stuff worked all along
Bwahahahhahaha.
I work with
On Jun 14, 2006, at 2:18 AM, John van Oppen wrote:
That being said, I know at least one of our transit customers does
hosting exactly how you are describing. Coincidentally, this
customer is also one of the customers that asked if we could give
them a class C block.
Ok, I KNOW I am
On Jun 8, 2006, at 10:12 AM, Patrick W. Gilmore wrote:
On Jun 8, 2006, at 10:04 AM, Matthew Petach wrote:
(sorry these are coming out 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
On May 24, 2006, at 2:05 AM, [EMAIL PROTECTED] wrote:
snip
So again, I ask the question: Is NANOG an appropriate
forum to develop some best practices text that
could be incorporated into service agreements and
peering agreements by reference in the same way
that a software licence
On May 12, 2006, at 3:26 PM, John Palmer (NANOG Acct) wrote:
What are they talking about? .XXX already exists:
No it doesn't, see below:
dig ns xxx @g.LookMaICanAlsoSplinterTheNameSpace.com
; DiG 9.2.1 ns xxx @10.24.0.7
;; global options: printcmd
;; Got answer:
;; -HEADER- opcode:
Sounds a whole bunch like you have a PMTUD (Path MTU Discovery) issue.
Change the MTU on a host to be smaller and see if this fixes the
issue... If it does, there are a bunch of networking tricks you can
play to fix it for all of the customers. MSS rewrite is one,
clearing the DF BIt on
So, back in 1999 I'm working for this small ISP that decides they
want to become a colo player and open a datacenter in White Plains,
NY. We spend large amount of time with commercial real-estate people
to find a building with a: some space and b: fiber into the building.
Eventually real
On Apr 18, 2006, at 1:19 PM, Mike Walter wrote:
Sounds to me like one of your providers is not feeding you the full
internet routing table. Have you checked with them to see if they are
providing you that?
Sounds to me like a: you are only looking at best routes or b: one of
the
On Feb 25, 2006, at 9:23 PM, Owen DeLong wrote:
--On February 25, 2006 8:09:22 PM + Christopher L. Morrow
[EMAIL PROTECTED] wrote:
On Sat, 25 Feb 2006, Neil J. McRae wrote:
An argument could be made for individual VLANs to keep things
like b- cast storms isolated. But I think
Perhaps this thread would be more appropriate for the Cisco-NSP list?
Warren
On Feb 22, 2006, at 5:44 AM, Aaron Daubman wrote:
And no hierarchial QoS, which was requirement of the original
poster,
of course 3550 offer no such either.
IIRC, the only switch to currently support HQF is
On Feb 22, 2006, at 10:12 AM, Jo Rhett wrote:
A lot of smaller folks check the counter every 5 min and use that same
value for the 95th percentile. Most of us larger folks need to
check more
often to prevent 32bit counters from rolling over too often. Are
you larger
folks averaging
Doh! You are 100% correct.
I didn't take into account the fact that the counters are if(In|Out)
*Octets* and NOT if(in/Out)*Bits*.
The point is that 64-bit counters are not likely to roll :-)
Warren
On Feb 22, 2006, at 12:24 PM, Alex Rubenstein wrote:
(I did this fast, and, who knows;
Part of the question is how bad it is for you if you DO get any
traffic to your backup datacenter, the connectivity between the
datacenters and the datacenters connectivity to the rest of the world.
Assuming that you do not have good connectivity between datacenters
and that the
On Feb 11, 2006, at 1:09 AM, Mark Foster wrote:
Anyone else seeing 403's when trying to pull anything other than
the index page from www.nanog.org?
Nope, it's not just you.
I suspect someone edited the site and copied it with incorrect
permissions...
Warren
--
Some people are
Oh, the irony - all I get is:
Access denied
You are not authorized to access this page.
I guess in the future the net is going to be exactly the same is it
it now...
Warren
On Nov 16, 2005, at 5:09 PM, Richard A Steenbergen wrote:
On Wed, Nov 16, 2005 at 04:42:41PM -0800, Randy Bush
On Oct 5, 2005, at 12:12 PM, Mike Tancsa wrote:
At 02:47 PM 05/10/2005, Douglas Dever wrote:
fact remains that Cogent is not providing the service I'm paying
them
for and they need to get it fixed.
Really? As you already pointed out, your packets are reaching their
destination. So,
automatically change OSPF ID[2] and look in your OSPF
database and see addresses that you shouldn't / you retired, etc,
especially because most people only page through their OSPF database
when they suspect something is odd...
Warren Kumari
[1] As with most things, I am sure that the exact
On Sep 29, 2005, at 12:56 PM, Elmar K. Bins wrote:
[EMAIL PROTECTED] (Elmar K. Bins) wrote:
That somehow sums it up quite good.
Folks, I'm taking this back, seeing that the original poster is not
alone.
Makes me wonder as to what current network engineers do know
about the
world
On Sep 16, 2005, at 2:12 PM, Matt Bazan wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Sean Figgins
Yes, it would be great, however it won't work.
Couple points. This is true typically in only the largest enterprise
quotes. For the
Uhh, make sure the data isn't stored anywhere vendor
X's attornies can get to it. Rest assured, whoever hosts the
site would be sent paperwork in hours, if not minutes from
it's discovery.
If need be I'll off shore it.
Matt
Fine, you can build it and off-shore it, but I suspect
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So I am standing in a datacenter fiddling with some fiber and
listening to an electrician explaining to the datacenter owner how he
has just finished auditing all of the backup power systems and that
the transfer switch will work this time
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On Feb 13, 2005, at 2:31 AM, Christopher L. Morrow wrote:
On Sat, 12 Feb 2005, Alexander Koch wrote:
On Sat, 12 February 2005 14:58:42 +, Stephen J. Wilcox wrote:
From: Stephen J. Wilcox [EMAIL PROTECTED]
[...] - would you agree that most of the
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On Feb 13, 2005, at 6:19 PM, Christopher L. Morrow wrote:
On Sun, 13 Feb 2005, Michael Smith wrote:
From: Warren Kumari, Ph.D, CCIE# 9190 [EMAIL PROTECTED]
On Feb 13, 2005, at 2:31 AM, Christopher L. Morrow wrote:
That and the I have 1 circuit
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On a similar note, did anyone find a (Canon) digital camera after NANOG
32? (Reston, VA) I have checked with lost and found at NANOG and the
hotel, but no luck... If you happen to have come across it, please let
me know...
- -- Warren.
On Feb 11,
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To my mind, John Stewart's BGP4: Inter-Domain Routing on the Internet
is the best networking book ever. Unfortunately, it is also one of
those books (just like A Brief History of Time) that one leant is
never returned. I must have bought around
:39 AM, Warren Kumari, Ph.D, CCIE# 9190 wrote:
Hi All,
I'm heading over to Equinix, Ashburn in a few minutes to help out a
friend. If anyone needs anything done over there I can provide free
remote hands for a bit.
Feel free to give me a call @ +1 571-344-0997.
Warren.
- --
- --
I had no shoes
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Hi All,
I'm heading over to Equinix, Ashburn in a few minutes to help out a
friend. If anyone needs anything done over there I can provide free
remote hands for a bit.
Feel free to give me a call @ +1 571-344-0997.
Warren.
- --
Build a man a fire,
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I have been making a collection of interesting logos from vendor
equipment - hey, its better than train-spotting!
I have put some of the GSR ones up on a a temporary site (my server is
moving this week, FedEx seems to have lost it though):
On Feb 17, 2004, at 4:05 PM, [EMAIL PROTECTED] wrote:
On Tue, 17 Feb 2004 20:38:12 GMT, Rainer Atkins
[EMAIL PROTECTED] said:
Is it just me, or is it a clear indication that a thread is ending its
useful life is when people start debating the merits of the analogies
that
have been posed
Ok, I know that this is getting away from the original thread, but I've
always wondered this...
Why is the MTU on Ethernet 1500 bytes? I have looked through various
docs (eg IEEE Std 802.x) and can find where maxUntaggedFrameSize is
listed as 1518 octets, but there is no mention of why this
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Christopher L. Morrow wrote:
http://news.bbc.co.uk/1/hi/england/2879833.stm
Do british cops have fiber in their cars??
Quite possibly! There are a few (competing) in-car fiber solutions,
MOST (Media Oriented Systems Transfer) seems to be the
On 10/10/02 2:12 PM, Roger Marquis [EMAIL PROTECTED] wrote:
PS. these logs illustrate only a small fraction of the SMTP activity
from AOL's servers.
Um, I am sorry that you are hurting, but was 450+ lines of log *really*
necessary?!
- Warren.
--
Build a man a fire, and he'll be warm for a
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