improve the Internet and help with things like video distribution, the
grid is NOT going to replace the web, let alone the Internet.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED
/showfiles.php?group_id=128336
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
to about 12K routes in the FIB. It's not shipping at this time
and I don't know when FSR is scheduled.
Note that F10 does not do MPLS and neither F10 or Foundry has the
software stability of either C or J, so you will need to look closely at
exactly the features needed.
--
R. Kevin Oberman, Network
to remove IPv4
capability from any network or service.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4
. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
pgptermTVHS5p.pgp
Description
Just for the record, Verizon has a fiber cut in the No. VA-DC area this
morning and the times look similar. I suspect Cogent had bandwidth on
that fiber.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail
for the
cases described in Section 6.4.4 and for the purposes of measuring
utilization as defined in this document.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone
Date: Wed, 19 Dec 2007 13:28:35 +0100
From: Jeroen Massar [EMAIL PROTECTED]
Sender: [EMAIL PROTECTED]
Kevin Oberman wrote:
[..]
Note that sixxs only deals with commercial providers. Many (most?) of
the major research and education networks around the globe have done
IPv6 in production
://www.civil-tongue.net/clusterf/. It may help at some
point, but many of us see no clear way to get from here to there without
massive growth in both the RIB and the FIB in the process.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National
not
read, but Richard (Rick) Steves writes travel books. TCP/IP Illustrated:
Vol. 1 was written by the late W. Richard Stevens. (Actually, this was
probably a typo and not confusion.)
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory
that is missing most
features needed to provide true, production quality support.
It's even worse in areas like security products and various network
application, monitoring, and analysis devices.
About the only things that is pretty likely fully IPv6 capable is the
end system.
--
R. Kevin Oberman
to notice and fix it.)
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
Date: Mon, 17 Sep 2007 18:22:12 -0400
From: Deepak Jain [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
On Mon, 17 Sep 2007 14:28:45 PDT, Kevin Oberman said:
I had a router that lost it's NTP servers and was off by about 20
minutes. The only obvious problem was the timestamps in syslog
which may or may not be stabilizing or
beneficial.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4
the router is from a
company that charges substantially extra for IPv6 software licenses. If
the is only limited IPv6 traffic, switching to a central router might
not only be technically the best solution, but the most reasonable
fiscal approach.
--
R. Kevin Oberman, Network Engineer
Energy Sciences
to do with this problem. It is impacting some
traffic between Chicago and New York, though.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key
.
Almost certainly the fiber cut of last night. Still down after 19
hours. Not a pretty picture for those lacking diversity between Chicago
and points east.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail
.
If someone sabotages a rail to stop a train and the derailment takes out
the fiber that is buried in the right-of-way, is that unintentional
sabotage? At least of the fiber?
Just asking...;-}
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National
the emoticon. Clearly the fiber damage in the
case I gave was collateral damage. It would have been sabotage on the
rail line and the derailed train.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL
mean small companies, either. One of the biggest
issues I have is with one of the countries largest government funded
research labs.
Wonder how often DNSSEC might make non-transfer queries tickle this and
really break things? (Assuming we ever get wide use of DNSSEC.)
--
R. Kevin Oberman, Network
techniques that could deal with this.
Vince Fuller, Dave Meyer, Dave Oran, and Dino Farinacci presented an
approach at the last NANOG:
http://www.nanog.org/mtg-0706/Presentations/lightning-farinacci.pdf
They are not the only ones working on resolving this issue.
--
R. Kevin Oberman, Network Engineer
.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
are not a typical provider, but I don't see how any
provider doing diffserv can leave TOS bits untouched and diffserv is a
standard part of our operations. I'll concede that it is probably not
common in commercial networks.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O
not write any of BIND 9.
Paul is welcome to correct any of this as my memory is probably failing
on details.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1
. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Oops! Very sorry. (Man, this is embarrassing!)
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Date: Fri, 01 Apr 2005 14:09:08 -0800
From
work and the demand goes out for
something better. They will claim that the state promised, but they
won't be taking legal action against the state. :-(
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail
, it sounds like MCI determined that it could not succeed on its own
and that forced the sale and MCI seemed to want Verizon to buy them
from the start because of the long-term value to shareholders and bond
holders, the REAL owners of the company.
--
R. Kevin Oberman, Network Engineer
Energy Sciences
in your world, but in mine there are a few major
international research projects that are IPv6 only and I am not in a
position where I can just shut down IPv6 at some spot and assume that
customers won't notice (or at least won't care).
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network
From: Joe Abley [EMAIL PROTECTED]
Date: Sun, 21 Nov 2004 19:55:10 -0500
On 20 Nov 2004, at 19:13, Kevin Oberman wrote:
In any case, if the prefix length is 64, routing is done in the
CPU.
Engineers at Juniper seem to be telling me that this is definitively
not the case
, routing is done in the
CPU. IPv6 traffic for most tends to be light enough that this is not a
big issue today, but the assigning /126 or /127s for P2P links is
really, really not a good idea. the use of 127s also ignore the
possibility of a anycast address.
--
R. Kevin Oberman, Network Engineer
in the road.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
table would increase
massively. So would the time to compute the routes which might lead to
some really bad instability for some routers.
thanks for letting me rant. :)
Any time, Bill.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley
. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
is the HFR which, according to the San Jose Mercury, is short
for Huge Fast Router. (Some reporter at the Merc probably still
believes in the tooth fairy.)
As with many things, if you have to ask how much it costs before
deciding to order it, you can't afford it.
--
R. Kevin Oberman, Network Engineer
. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
services with different hardware and prices.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
bloody hell via email if it finds problems.
I use 'ntpq -p', but I'm just lazy enough to save a few keystrokes. Both
commands produce identical output.
Randy, what version of ntpdate are you running that ntpdate backgrounds
on '-b'?
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network
ntpdate for years on a
variety of systems, almost all of the BSD family. (I count the VMS
implementation in TGV software as BSD.) I have never seen '-g' and have
always had '-b' as the boot option. I have confirmed the '-b' with the
official sources at Deleware.
--
R. Kevin Oberman, Network
://www.iana.org/assignments/ipv4-address-space.
While it's certainly nice to have these posted and I really do
appreciate it, is there any chance that they might be signed so we can
authenticate them some day?
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence
.
And this loss of $200k+ in revenue helps Winstar how?
Education?
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Date: Wed, 28 Apr 2004 20:42:52 +0300 (EEST)
From: Pekka Savola [EMAIL PROTECTED]
On Wed, 28 Apr 2004, Kevin Oberman wrote:
Date: Wed, 28 Apr 2004 10:17:23 -0700
From: Steve Conte [EMAIL PROTECTED]
Sender: [EMAIL PROTECTED]
Greetings,
This is to inform you
control_rancid to update a single
router in the archive and I have written some trivial mods to save a log
message of why the change took place and who made it. CVS is a big win
over RCS IMHO and the expect scripts in RANCID ame life much easier.
--
R. Kevin Oberman, Network Engineer
Energy
need or will benefit from a firewall. And many
system will exist with significant security flaws because the owners
believe that the firewall takes care of everything.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab
at all with viruses...
They are getting batter at it, but the WANK worm (1989) used
self-modifying code so that no two replicas were the same. (Note: This
worm only infected VMS systems running on the global DECNET internet,
mostly DOE, NASA, and DEC corporate systems.)
--
R. Kevin Oberman, Network
there we are. Want to bet on whether 40 GigE will still have the 1522
byte limit?
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
adopted when the hardware will support
it.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
(and often supportive) technical folks will be the only ones directly
impacted.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
as saying: It should scare people
that nine of the 13 went down. No equivocation in that statement.
No accuracy, either.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED
of it and the
box that connects to the phone line at each end is properly and fairly
commonly called a DSL modem.
If the path was entirely digital, it would be a CODEC
(CODer/DECoder). It is a modem.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley
.99feb08.txt
But note the date of this (1988). Clearly, router vendors are handling
this much better today, in light of 1122. Today tracert almost works
as well as traceroute.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley
it backwards. Windows tracert uses ICMP while most Unix boxes
use the LBNL traceroute program (or something derived from it) which
uses UDP. But both rely on the return of ICMP TTL expired or
unreachable messages and blocking all ICMP breaks both.
--
R. Kevin Oberman, Network Engineer
Energy Sciences
the 6bone. It does
not provide very optimal routes and really should be going away some
day. Separate IPv6 and IPv4 names breaks things down the road.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL
. The latest and most annoying version of Sobig worm has
hit the nets and I have gotten at least 50 copies already today.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED
a permit, but the hole is plenty deep enough to be a
problem!
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
private addresses to these links.)
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
is not originating or terminating there, it is
merely passing through.
And what are the ICMP packets doing on the net? They seem to be
originating from 1918 space. Nothing in the RFC says that ICMP does
not count.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley
a network that does not work
correctly. (Not that I expect anyone to do this.)
I don't see anything tough about this call.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED
not an RFC1918 address.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
are small) or setting up your own with the free irrd
software. There is nothing more magical about the RADB than any other
member of the IRR.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED
Thanks, John. I appreciate it. As participants at AADS, StarLight, and
StarTAP, I feel that this will be a significant enhancement to
communication among th participants.
Now, if we can just convince the AADS management to use the list...
--
R. Kevin Oberman, Network Engineer
Energy Sciences
British
common law is the basis of the system. Louisiana law is based on the
Napoleonic Code and is supposed to be very different, but I can't say
for sure. I assume that the UK has similar common law since ours come
from there.
(IANAL, I just play one on the net.)
--
R. Kevin Oberman
E-mail: [EMAIL
facility that permits the control of traffic going
through the various network interfaces, by applying bandwidth and queue
size limitations, implementing different scheduling and queue management
policies, and emulating delays and losses.
--
R. Kevin Oberman, Network Engineer
Energy
agreements of several carriers, but they often don't check or enforce
this. Many register customer routes and ASes. If routes and policies
were properly registered, securing the Internet would be a lot closer
to being possible.
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet
of the routing and, from my viewpoint,
have done an amazing job. I hope they do the presentation.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Date
have not seen T40, yet.)
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
that there was nothing to worry about. Some people should be VERY
nervous, indeed.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
damages which will amount to back royalties. (Not that this is
insignificant.)
Oh, by the way, IANAL, so don't take this as having any actual basis
in case law.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail
of the abstract.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
and 10Base2 recommends that one point be grounded
when the cable extends out of a room. More than one ground is
explicitly prohibited.
The archives of comp.dcom.lans.ethernet are full of people who have
high error rates because of multiple grounds.
R. Kevin Oberman, Network Engineer
Energy
O.K. This is less off-topic than half the posts this week.
For the REAL origin of the Internet, see
http://www.uclick.com/client/byr/nq/ (Make sure that you see the entry
for 12/5/02.)
of like waring people that they need to keep a close
sys on laptops, keep a close eye on the network.
Last year slashdot even carried a note that the net was open at the
Denver Convention Center and we survived with minimal problems.
R. Kevin Oberman, Network Engineer
Energy Sciences Network
a review of console servers from Network Computing that
reviewed quite a number of boxes at:
http://www.lantronix.com/news/news/network_computing.html
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL
Grid tends to be mostly RE, there are a number of
commercial providers supporting it and interdomain multicast.
I do not believe that the Access Grid has yet been used for pr0n, but
is is largely government subsidized.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O
want to over-ride the MAC
address portion, it's your business.
God help us all if some discovers that I use both Intel and 3Com
cards! (Not to mention Agere on occasion.)
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley
sillier and point out
the real concerns and possible benefits of Pd.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
. Opposition may be justified and
it may not, depending on many small technical points that may not be
completely clear at this time.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED
. But you may have problems if the system(s) scanned
are elsewhere, though there is no specific law on the subject. The
action reviewed by the court was under federal anti-hacking laws which
might be construed as covering port scanning. The court held that they
did not.
R. Kevin Oberman, Network
a REAL safety issue! Make sure that ground is NOT
exposed at the un-grounded end. A potential of many volts can occur,
especially in areas subject to thunder storms.
None of his is specific to Cat-5e installations but is common to ALL
electrical installations.
R. Kevin Oberman, Network Engineer
installations
were an insane idea. Telcos do deal with this routinely.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
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