(you forgot to change subj:)
Pfft. Everyone knows that Fibre Channel's going to replace everything...
The minute we get those 128Gbit/sec transmission characteristics,
Ethernet's gonna be as good as RS-485.
If I am not mistaken the IETF efforts to standardize the TRILL spec, and IEEE efforts to standardize the DCB spec will provide the desired features to Ethernet: lossless delivery, QoS, and bringing an IS-IS layer 3 model to layer 2. I think Cisco has a pre TRILL/DCB standards feature set called Fabricpath, and Brocade has a feature set called VCS.
Both, I think, will converge Ethernet data and Fibre Channel over the same wire.
yes, let's get something with say fixed sized packets, ability to have
predictable jitter and also, for fun, no more STP!
Ethernet is too complex, maybe something simpler? I hear there's this
new tech 'ATM'? it seems to fit the bill!
atm-2, aka mpls
I knew MPLS was fishy...
Actually an a Cisco presentation on Nexus 7k I asked whether it's possible to transport the FCoE over let's say EoMPLS or VPLS and did not get a straight answer though that was half a year ago
-but it would be really cool to connect hard-drives directly over continents
adam
I am php/javascript programmer.
The web used to be request/reply. With the request small (but not
small enough), and the reply long.
But the time for permanent connections is comming. Links from clients
to server that are permanent. Or look like that in the application
layer.
On one sense, this is a optimization, no more pooling the server "do
you have something for me?" every n seconds. But I imagine mostly
make things like caching and proxies pointless.
At some point, users will start getting unhappy with web pages replies
slower than 100 ms. ATM my webpages takes longer to start Jquery
that all the server-client interactions. Most obvious optimization is
never reload the page, and run everything trough ajax calls.
I am not dumb, I know turning webpages into applications make
webpages to fragile. But I am scared of javascripts. Javascript is
just too dawmn usefull now, browsers too broken (mostly IE), and
Javascript is like a superhero that fix all. The web is going to
change in a few years, from a "request" "reply" interchange network,
to something more like a computer "bus". I don't know how the
"wires" will react to this.
What we really need is a new method of sending data. The fact that I
will never be able to send something from Maine to California in less
than 15 ms is not acceptable.
The speed of light is such a drag.
Well hopefully we won't need to worry about the speed of light anymore
Just recently I heard about the experiments with "quantum nonlocality"
no one seem to understand how it happens but for me it's enough it works
Basically when 2 photons or electrons are emitted form the same source -they are somehow bound/entangled together -that means if we change the spin on one photon to "up" the other photon will have it's spin changed to "down" immediately
-and it doesn't matter whether the photons are next to each other or light years away -this happens instantly (no energy is transferred yet the information is passed)
-this was already tested between two cities
Imagine that instead of sfp connectors and dark fiber between San Fran and NY node we'd install a connectors with let's say 1500k entangled photons
-and if we set the spin in a way to send a 1500kbit packet to NY the NY node would see it instantly -no cables needed
-also there some attempts to actually send the information 50 micro sec back in time
Of course there are still these issues with probabilities at quantum level
adam
Are you telling me that the 1,100 miles of fiber I just had run is
already obsolete? Someone is going to get fired over this.
Article by John Cramer says:
At the AQRTP Workshop we considered the question of whether quantum nonlocality was a possible medium for FTL communication. In the context of standard quantum mechanics there is good reason for believing that it is not. Eberhard has proved a theorem demonstrating that the outcomes of separated measurements of the same quantum system, correlated by nonlocality though they are, cannot be used for FTL observer-to-observer communication. A possible loophole in Eberhard's theorem could arise if, following the work of Nobel Laureate Steven Weinberg, one modifies conventional quantum mechanics by introducing a small non-linear element into the standard QM formalism. It has been shown that in slightly non-linear quantum mechanics, the observable nonlinear effects that would arise would make possible FTL communication through nonlocality.
The only possibility seem to be modificaiton to QM equations
So fingers crossed 
adam
Wasn't this covered in an RFC I read, dated 1 April 2030?
Cheers,
-- jra
I think the challenge here is going to be the unintended interactions
of the subsystems involved. Take a look at the buffer bloat research
and activities.
I think getting a better symmetric speed ratio to the edge will help
solve this problem. Just because you have 22:5 capability at home,
or 50:10 (5:1) doesn't mean it will be used that way, but being closer
to 2:1 will likely cause some significant improvements in performance.
The internet as the transport over the top of the physical {fiber,copper,coax}
is going to continue to grow. The folks at NTT just announced their
60th 10G across the pacific. With the continued growth here and 100G
out there, handling the traffic will certainly become interesting. I
think the dark buffers are going to be the biggest challenge we see.
(I'm hoping for some good snow storms in the midwest/north east/NoVA
area to put some good stresses on the network for a week or so this
winter that can be measured/observed).
- Jared
From: Jared Mauch <jared@puck.nether.net>
(I'm hoping for some good snow storms in the midwest/north east/NoVA
area to put some good stresses on the network for a week or so this
winter that can be measured/observed).
In DC and NoVA, the network which is most taxed by snow storms is the transportation network. That's probably the one time when you really *can* overestimate the bandwidth of a station wagon full of hard drives...
David Barak
Need Geek Rock? Try The Franchise:
http://www.listentothefranchise.com
I propose that everyone on this mailing list make it their #1 New
Years Resolution to fix this problem. If we all work together, we can
do something about it!
Tom
I just came up with a new way implement ATM on the LAN so we can all get along. It's called LANE. Oh wait...
tv
Well hopefully we won't need to worry about the speed of light anymore
Nope. The laws of physics as currently understood prohibit sending information
faster than the speed of light. (The reality of FTL neutrino thingie is still
too early to tell).
Basically when 2 photons or electrons are emitted form the same source -they
are somehow bound/entangled together -that means if we change the spin
on one photon to "up" the other photon will have it's spin changed to
"down" immediately - and it doesn't matter whether the photons are next
to each other or light years away -this happens instantly (no energy is
transferred yet the information is passed) -this was already tested
between two cities
That's not what happens: the entangled particles are in superposition
state (i.e. they are carrying both |0> and |1> simultaneously). When
the measurement on one of them is made, their common wavefunction
collapses, leaving them in random specific state. I.e. if you measured
one |0> the other will be |1>, or vice versa. Changing quantum state of
an entangled particle to a known state will simply break entanglement
(the story is more complicated, but I don't want to get into arcana).
Because of that the quantum entanglement *cannot be used to transmit
information* between receiving points, so this non-local action at a
distance doesn't break the relativistic prohibition on FTL information
transmission.
However, this effect is still useful because it is a way to generate
random encryption keys, which will "just happen" to be the same at both
ends, hence the quantum cryptography. Anybody trying to snoop on the
entangled photons in transit will cause premature wavefunction collapse
which can be statistically detected (in practice sources of entanglement
and phase detectors are not perfect, so quantum cryptography is not
unbreakable).
Especially if you actually *read* the actual journal article rather than the
pop-sci interpretation of it, it basically says "our experiment had the
neutrinos showing up 60ns faster than lightspeed - we can't find what we did
wrong, does anybody else see what we screwed up?" - i.e. an appeal to "with
enough eyeballs, all bugs are shallow". (Personally, I'm betting on a mascon
somewhere in northern Italy distorting the actual path taken so the actual
geodesic isn't what they thought it was..)
From nanog-bounces+bonomi=mail.r-bonomi.com@nanog.org Fri Dec 30 07:03:54 2011
From: "Vitkovsky, Adam" <avitkovsky@emea.att.com>
To: Ray Soucy <rps@maine.edu>, Tei <oscar.vives@gmail.com>
Date: Fri, 30 Dec 2011 14:00:16 +0100
Subject: RE: next-best-transport! down with ethernet!
Cc: "nanog@nanog.org" <nanog@nanog.org>Well hopefully we won't need to worry about the speed of light anymore
Just recently I heard about the experiments with "quantum nonlocality"
no one seem to understand how it happens but for me it's enough it worksBasically when 2 photons or electrons are emitted form the same source -they are somehow bound/entangled together -that means if we change the spin on one photon to "up" the other photon will have it's spin changed to "down" immediately
-and it doesn't matter whether the photons are next to each other or light years away -this happens instantly (no energy is transferred yet the information is passed)
-this was already tested between two citiesImagine that instead of sfp connectors and dark fiber between San Fran and NY node we'd install a connectors with let's say 1500k entangled photons
-and if we set the spin in a way to send a 1500kbit packet to NY the NY node would see it instantly -no cables needed-also there some attempts to actually send the information 50 micro sec back in time
Of course there are still these issues with probabilities at quantum level
I *strongy* recommend that anyone pursuing this subject read Dr. Asimov's
essays on resublimated thiotimoline.