Elliot Finley efinley.li...@gmail.com wrote:
A T1 can only run about 600 feet. Yes, that's right, 600 feet.
When people talk about T1s running long distances, the reference
to 'T1' is only the signalling at the end. In the middle, that
T1 will be carried by other methods such as SONET over
David Kelly dke...@hiwaay.net wrote:
Not directly FreeBSD related, but how much of a chance is there
that two machines could communicate directly over 5,000 feet of
cat5 with no special hardware?
After reading (at least most of) the discussion that has arisen
from this, I've had another
Hi,
AFAIK neither of these really needs the signal quality of Cat 5 --
they both should work just fine over Cat 3 -- but surely the higher
grade wire can't hurt (and it may increase the usable DSL distance).
I think I remember that the gauge of Ethernet cable is smaller than
the one of phone
Hi,
Am 2009-07-17 00:47:57, schrieb per...@pluto.rain.com:
Option 2: Put an ordinary DSL modem at one end and a DSLAM at the
other end. Again I'm not sure what the range is, but DSL used to
be referred to as the solution for the last mile from the telco
to the customer so it may be up to
Option 2: Put an ordinary DSL modem at one end and a DSLAM at the
other end. Again I'm not sure what the range is, but DSL used to
be referred to as the solution for the last mile from the telco
to the customer so it may be up to the job.
I could recommend this too, because a
Check www.gnswireless.com (this from a satisfied customer)
That said, I also use the method of placing mini ethernet switches or
hubs (electrically a multiport repeater and damned hard to find now)
every so often to reach distant parts of our warehouses. These are
powered, of course. POE
Just for the archives:
A T1 can only run about 600 feet. Yes, that's right, 600 feet. When people
talk about T1s running long distances, the reference to 'T1' is only the
signalling at the end. In the middle, that T1 will be carried by other
methods such as SONET over fiber for very long
David Kelly wrote:
Since when does one have CSMA/CD when configured as full duplex? All
full duplex ethernet connections are point to point, machine to
machine, or machine to switch. There is no multiple access on full
duplex. No chance of collision.
You are running Ethernet, right?
On Thu, Jul 16, 2009 at 02:49:11AM -0400, Michael Powell wrote:
David Kelly wrote:
Since when does one have CSMA/CD when configured as full duplex? All
full duplex ethernet connections are point to point, machine to
machine, or machine to switch. There is no multiple access on full
Michael Powell nightre...@verizon.net writes:
You are running Ethernet, right? CSMA/CD is part of the Ethernet framing
protocol. It is present in the protocol independent of simplex/duplex, etc.
As such the timing windows contain non-infinite discreet value ranges. It is
integral to
David Kelly wrote:
[snip]
But it is turned off. A full duplex switch does not echo the sender's
bits back to the sender's receiver. A full duplex switch buffers the
incoming bits, reads the header, selects an output port, and then starts
sending the bits to that one port out of the FIFO.
On Thu, Jul 16, 2009 at 04:33:24PM -0400, Michael Powell wrote:
David Kelly wrote:
Last sentences in last paragraph before See Also at
http://en.wikipedia.org/wiki/Carrier_sense_multiple_access_with_collision_detection:
Also, in Full Duplex Ethernet, collisions are impossible since
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
IIRC the classic Ethernet problem limiting the distance between the
farthest points on a network had to do with timing and collisions. If
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
IIRC the classic ethernet problem limiting the distance between the
farthest points on a network had to do with timing and collisions. If
David Kelly wrote:
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
IIRC the classic ethernet problem limiting the distance between the
farthest points on a network had to do with
Hello David,
Am 2009-07-15 14:47:18, schrieb David Kelly:
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
I do not know hoe much a feet is in meters but AFAIK arround 0,3 which
mean,
On Wed, Jul 15, 2009 at 10:27:35PM +0200, Michelle Konzack wrote:
Hello David,
Am 2009-07-15 14:47:18, schrieb David Kelly:
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
I
20090715202734.gh29...@tamay-dogan.net
20090715210752.ge16...@grumpy.dyndns.org
From: Mikel mikel.k...@olivent.com
Date: Wed, 15 Jul 2009 17:38:21 -0400
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
David,
You can run upto 1.5 miles on a lx fiber based
Hello *,
Am 2009-07-15 17:38:33, schrieb mikel.k...@olivent.com:
David,
You can run upto 1.5 miles on a lx fiber based solution but will likely
require a skilled installer to setup that much cable for you.
Depending on your locale I am may be able to put connect you to a supplier.
David Kelly wrote:
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
IIRC the classic ethernet problem limiting the distance between the
farthest points on a network had to do with
On Wed 2009-07-15 22:27:35 UTC+0200, Michelle Konzack
(bsd4miche...@tamay-dogan.net) wrote:
Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
I do not know hoe much a feet is in
Hi,
A general reply to many suggestions.
So the time it takes for the smallest Ethernet frame to get from the two
farthest nodes will determine a window in which the two most distant nodes
upon attempting a transmit can tell that a collision occurred and
retransmit.
In a case of
On Jul 15, 2009, at 9:25 PM, Olivier Nicole wrote:
The max distance for UTP is 328 ft. Divide the 5,000 by 328 and it
will tell
you how many bridges, hubs, or switches you will need to
regenerate the
signal. You may find devices purporting to 'range extenders', but
even these
will have
On Jul 15, 2009, at 5:41 PM, Michael Powell wrote:
David Kelly wrote:
Not directly FreeBSD related, but how much of a chance is there
that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?
IIRC the classic ethernet problem limiting the distance
David,
You would need 5 boxes, the connections between each run of cable
could cause too many loss, even if the timing was not an issue.
Wire connections are not all that lossy.
You would be surprised by the impedance missmatch tests made by
cabling companies...
Meanwhile cat5 is useful
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