12.0 images.
Tim Champion wrote in message
news:[EMAIL PROTECTED]
I am looking for an IOS version that will support 10Mbps full duplex on a
3640. Cisco documentation suggests that this option was made available in
version 12.0.4(T). I've tried numerous versions but can't find one that
supports
Priscilla Oppenheimer wrote:
sam sneed wrote:
this is about the comment
You'd get a link but lots of collisions, eh? The half-duplex
side would
receive while it was sending, because the full-duplex side
would send
whenever it wanted. In other words, the 2500 side would report
Wow! Two ethernets! Bonus! I once worked on a 2501 and I only had one
ethernet...AND it was AUI!
--Mark
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=57519t=57431
--
FAQ, list archives, and subscription info:
Hi,
I have a cisco 2516 router with an ethernet interface. How can I find out if
this inteface is full duplex or half duplex?
Thanks
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=57431t=57431
--
FAQ, list archives
John,
It will be half duplex unless it has been configured for full duplex.
Setting an ethernet interface to full duplex is done in software and
requires a recent IOS. I have forgotten the minimum rev required but I know
12.2.3 will work.
Dave Swink
-Original Message-
From: [EMAIL
John,
Cisco's 25xx series uses the AMD Lance Chip for their 10Mbit
Ethernet Interface. This Chipset does not support full-duplex at all.
Router#show controllers ethernet 0
LANCE unit 0,
^
Have never used a 2516 myself but as far as i know it has a simple 10Mbit
Ethernet Hub built
John Tafasi wrote in message
news:200211141056.KAA04663;groupstudy.com...
Hi,
I have a cisco 2516 router with an ethernet interface. How can I find out
if
this inteface is full duplex or half duplex?
plug it into a full duplex 100 mbs switch port and see if link occurs?
seriously, I believe
The Long and Winding Road wrote:
John Tafasi wrote in message
news:200211141056.KAA04663;groupstudy.com...
Hi,
I have a cisco 2516 router with an ethernet interface. How
can I find out
if
this inteface is full duplex or half duplex?
plug it into a full duplex 100 mbs switch port
this is about the comment
You'd get a link but lots of collisions, eh? The half-duplex side would
receive while it was sending, because the full-duplex side would send
whenever it wanted. In other words, the 2500 side would report collisions,
assuming there was enough simultanesous traffic.
I
;hotmail.com]
Sent: Thursday, November 14, 2002 3:21 PM
To: [EMAIL PROTECTED]
Subject: Re: full duplex or half duplex, how can you tell [7:57431]
this is about the comment
You'd get a link but lots of collisions, eh? The half-duplex side would
receive while it was sending, because the full-duplex
The Long and Winding Road wrote:
John Tafasi wrote in message
news:200211141056.KAA04663;groupstudy.com...
Hi,
I have a cisco 2516 router with an ethernet interface. How
can I find out
if
this inteface is full duplex or half duplex?
plug it into a full duplex 100 mbs switch port
sam sneed wrote:
this is about the comment
You'd get a link but lots of collisions, eh? The half-duplex
side would
receive while it was sending, because the full-duplex side
would send
whenever it wanted. In other words, the 2500 side would report
collisions,
assuming
That was correct. I changed the speed to 10 full duplex and got the link a
both sides.
I just thought it was odd that one side(router) had the link light on but
the switch didn't.
Cisco3500-3#sh int fa0/17
FastEthernet0/17 is up, line protocol is up
Hardware is Fast Ethernet, address is 0002
PROTECTED]
Subject: Re: full duplex or half duplex, how can you tell [7:57431]
this is about the comment
You'd get a link but lots of collisions, eh? The half-duplex side would
receive while it was sending, because the full-duplex side would send
whenever it wanted. In other words, the 2500
Priscilla Oppenheimer wrote:
What is an internal switch in a hub? Is that another case of a marketing
term? ;-) I've never heard of the term.
I believe that it is usually a bridge between the 10mb segment and 100Mb
segment in a dual speed hub. Naturally the marketing people use the term
My understanding of a 10/100 hub is it has a bridge/switch internally to
connect the 10Mbps side to the 100Mbps side (a repeater wouldn't be able
to do this).
Priscilla Oppenheimer 09/10/02 05:03PM
Ken Diliberto wrote:
But can the internal switch in a 10/100 hub work in full
duplex
:03PM
Ken Diliberto wrote:
But can the internal switch in a 10/100 hub work in full
duplex???
What is an internal switch in a hub? Is that another case of a
marketing
term? ;-) I've never heard of the term. If it's really a hub,
then it's
just
a repeater. Full duplex has no meaning
At 6:45 PM + 9/11/02, Priscilla Oppenheimer wrote:
Ken Diliberto wrote:
My understanding of a 10/100 hub is it has a bridge/switch
internally to
Technically there's no such thing as a 10/100 hub. If a device connects two
different speed networks, it has to do store and forward of frames
It's fun arguing marketing-speak with engineering folks. :-)
I see a 10/100 Sub (I like that one the best) as two hubs with a bridge
between them. Based on the connect speed, a port can participate on
either the 10Mbps side or the 100Mbps side. I was just wondering if
that bridge was full or
Ken Diliberto wrote:
It's fun arguing marketing-speak with engineering folks. :-)
I see a 10/100 Sub (I like that one the best) as two hubs with
a bridge
between them. Based on the connect speed, a port can
participate on
either the 10Mbps side or the 100Mbps side. I was just
I agree with you there. Do you think these boxes run Spamming Tree???
;-)
Priscilla Oppenheimer 09/11/02 09:07PM
Ken Diliberto wrote:
It's fun arguing marketing-speak with engineering folks. :-)
I see a 10/100 Sub (I like that one the best) as two hubs with a
bridge
between them.
Just I want to know can a Hub work in full-duplex mode?
Saravanan
***
This message is proprietary to Future Software Limited (FSL)
and is intended solely for the use of the individual to whom it
is addressed. It may contain
10, 2002 2:59 AM
Subject: A HUB can work in Full-duplex mode? [7:52973]
Just I want to know can a Hub work in full-duplex mode?
Saravanan
***
This message is proprietary to Future Software Limited (FSL)
and is intended
r34rv13wm1rr0r wrote:
No. The collision domain on a hub is shared throughout causing
each port to
listen before transmitting.
No is correct. A hub can't be configured for full-duplex. If it can be, it's
been misnamed. It's really a switch. But the explanation is not correct. A
hub port
But can the internal switch in a 10/100 hub work in full duplex???
(Don't know why I decided to ask that question other than to cause
trouble...)
Ken the Trouble Maker
Priscilla Oppenheimer 09/10/02 03:18PM
r34rv13wm1rr0r wrote:
No. The collision domain on a hub is shared throughout
Ken Diliberto wrote:
But can the internal switch in a 10/100 hub work in full
duplex???
What is an internal switch in a hub? Is that another case of a marketing
term? ;-) I've never heard of the term. If it's really a hub, then it's just
a repeater. Full duplex has no meaning in this contect
Full-Duplex Communication
You can select half-duplex or full-duplex communication. The advantage of
using full-duplex is that communication packets can flow in both directions
simultaneously, which results in doubling the throughput capacity on the
segment.
Full-duplex communication eliminates
Cisco Breaker wrote:
If I connect a server to a swtich full duplex then if only one
client
connected with its gig eth card, he can't use 2 gigs. I think
they are
writing these manuals incorrectly. Cause you can use 1 gig for
sending 1 gig
for receiving. Not 2 gigs sending and receiving
That is a marketing issue, not a technical one. The people who work with
switches everyday understand that when you are talking about full-duplex
bandwidth, it's split between up and down. It's up to us to educate the
decision-makers and end-users, rather than muddle with the marketese
Cisco states that their PA-4E module (four port 10BaseT) for 7500 Series
routers is capable of being configured for full duplex operation.
Under the ethernet interface, no full-duplex option available. Also, the
command no half-duplex returns Invalid input.
Has anyone configured this module
o states that their PA-4E module (four port 10BaseT) for 7500 Series
routers is capable of being configured for full duplex operation.
Under the ethernet interface, no full-duplex option available. Also, the
command no half-duplex returns Invalid input.
Has anyone configured this module for
Maybe with the use of the 'transmit-interface'
command. I haven't tried this myself.
--- Tauseef Nagi wrote:
Cisco states that their PA-4E module (four port
10BaseT) for 7500 Series
routers is capable of being configured for full
duplex operation.
Under the ethernet interface, no full
--
From: Patrick Ramsey
To:
Sent: Friday, January 11, 2002 11:54 AM
Subject: RE: full-duplex Ethernet cable? [7:31643]
Is NIC Card kinda like a FAT Table? : p
Daniel Cotts 01/11/02 12:34PM
Unshielded Twisted Pair (UTP) uses two pair (four wires) on pins 12 and
36
of an RJ-45 plug.
tructors by
referring
to them as Network Interface Card Card's to point out what NIC Card
really
was ;)
Allen
- Original Message -
From: Patrick Ramsey
To:
Sent: Friday, January 11, 2002 11:54 AM
Subject: RE: full-duplex Ethernet cable? [7:31643]
Is NIC Card kinda li
Hi, there,
how many pairs of two-twisted cable are used for full-duplex Ethernet ? what
is the
difference between full- and half- duplex cable?
Thank you in advance.
Regrads,
mlh
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=31643t=31643
AFAIK, Ethernet would need 1,2 for transmit and 3,6 for receive (and CSMA\CD
if half-duplex).
Cable dosen't make a station full or half-duplex, it's the hardware.
--
RFC 1149 Compliant.
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and
Theoretically in full duplex mode each machine can send and receive on a
separate pair thus doubling your bandwidth. For example, 100mbps in full
duplex mode could send 100mbps on one pair and receive 100mbps on the other
pair at the same time which equals 200mbps. This would mean both devices
are sending
.
-Original Message-
From: mlh [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 11, 2002 10:56 AM
To: [EMAIL PROTECTED]
Subject: full-duplex Ethernet cable? [7:31643]
Hi, there,
how many pairs of two-twisted cable are used for full-duplex
Ethernet ? what
is the
difference between full
short answer, no differance
Dave
mlh wrote:
Hi, there,
how many pairs of two-twisted cable are used for full-duplex Ethernet ?
what
is the
difference between full- and half- duplex cable?
Thank you in advance.
Regrads,
mlh
--
David Madland
Sr. Network Engineer
CCIE# 2016
is running over coax cable then it is limited to half duplex.
-Original Message-
From: mlh [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 11, 2002 10:56 AM
To: [EMAIL PROTECTED]
Subject: full-duplex Ethernet cable? [7:31643]
Hi, there,
how many pairs of two-twisted cable
At 11:56 AM 1/11/02, mlh wrote:
how many pairs of two-twisted cable are used for full-duplex Ethernet ? what
is the
difference between full- and half- duplex cable?
10Base-T and 100Base-T unshielded twisted-pair cabling uses two pairs, for
both full duplex and half duplex. There's a transmit
Yep...and PIN Number, ACL List, etc. I used to bug instructors by referring
to them as Network Interface Card Card's to point out what NIC Card really
was ;)
Allen
- Original Message -
From: Patrick Ramsey
To:
Sent: Friday, January 11, 2002 11:54 AM
Subject: RE: full-duplex Ethernet
to point out what NIC Card really
was ;)
Allen
- Original Message -
From: Patrick Ramsey
To:
Sent: Friday, January 11, 2002 11:54 AM
Subject: RE: full-duplex Ethernet cable? [7:31643]
Is NIC Card kinda like a FAT Table? : p
Daniel Cotts 01/11/02 12:34PM
Unshielded Twisted Pair
NIC
lol
Scott
-Original Message-
From: Patrick Ramsey [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 11, 2002 10:59 AM
To: [EMAIL PROTECTED]
Subject: Re: full-duplex Ethernet cable? [7:31643]
I don't know why it irritates me so much...it's really crazy but I can't
stand
List, etc. I used to bug instructors by
referring
to them as Network Interface Card Card's to point out what NIC Card
really
was ;)
Allen
- Original Message -
From: Patrick Ramsey
To:
Sent: Friday, January 11, 2002 11:54 AM
Subject: RE: full-duplex Ethernet cable? [7:31643]
Is NIC Card
I can see you are a stable person
-Original Message-
From: Patrick Ramsey [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 11, 2002 1:59 PM
To: [EMAIL PROTECTED]
Subject: Re: full-duplex Ethernet cable? [7:31643]
I don't know why it irritates me so much...it's really crazy but I can't
: Re: full-duplex Ethernet cable? [7:31643]
I don't know why it irritates me so much...it's really crazy but I
can't
stand hearing people say NIC Card NIC...NICjust say
it!...grin...
Allen May 01/11/02 01:36PM
Yep...and PIN Number, ACL List, etc. I used to bug instructors by
referring
I did not note a speed associated with that full-duplex Ethernet spec.
Wouldn't GigE Cu require all eight? And, might a new cable plant effort be
well-served to require all eight conductors per RJ?
Best, G.
VP OGC
-Original Message-
From: Allen May [mailto:[EMAIL PROTECTED]]
Sent
Interface Card Card's to point out what NIC Card
really
was ;)
Allen
- Original Message -
From: Patrick Ramsey
To:
Sent: Friday, January 11, 2002 11:54 AM
Subject: RE: full-duplex Ethernet cable? [7:31643]
Is NIC Card kinda like a FAT Table? : p
Daniel Cotts 01/11/02 12:34PM
It is true that 10Base-T and 100Base-T unshielded twisted-pair cabling uses
two pairs, both full duplex and half duplex.
It is true that It's not the cabling that distinguishes half-duplex and
full-duplex. It's the logical topology, hardware, and configuration.
But, if you want to run 100Base-T
, January 11, 2002 10:59 AM
To: [EMAIL PROTECTED]
Subject: Re: full-duplex Ethernet cable? [7:31643]
I don't know why it irritates me so much...it's really crazy but I
can't
stand hearing people say NIC Card NIC...NICjust say
it!...grin...
Allen May 01/11/02 01:36PM
Yep...and PIN Number
At 03:20 PM 1/11/02, Joseba Izaga wrote:
It is true that 10Base-T and 100Base-T unshielded twisted-pair cabling uses
two pairs, both full duplex and half duplex.
It is true that It's not the cabling that distinguishes half-duplex and
full-duplex. It's the logical topology, hardware
Yes, or TCP/IP Protocol for that matter.
-Original Message-
From: Patrick Ramsey [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 11, 2002 11:54 AM
To: [EMAIL PROTECTED]
Subject: RE: full-duplex Ethernet cable? [7:31643]
Is NIC Card kinda like a FAT Table? : p
Daniel Cotts 01/11/02
I haven't been around much lately or had time to read much, but I still like
to post odd tid-bits that I run into.
Cisco 7960 IP phones (probably all of the 79xx line) can run 100mbit
full-duplex. However, they will not run full-duplex on a Catalyst 4006
48-port inline power blades *if* you set
I finally found a single reference after a *lot* of searching on CCO
that indicates in 12.0(4)T, full duplex capability was added to ethernet
interfaces on the 2600 and 3600 platforms. I found this in a list of
caveats that mentioned a situation where this would not work even though
distracted
before I could set the Catalyst back (it was still on full-duplex) and
received this error on the 2610 when I returned:
May 28 20:18:46.243 PDT: %AMDP2_FE-5-LATECOLL: Ethernet0/0 transmit error
Drawing from this, I'm guessing somehow the 2610 e0/0 was really running
full-duplex before
Hi ALL,
a fast Ether port on a cisco switch (2900XL)
connected to a hub (3com repeater) 10/100 port
reports auto-negotiated full-duplex, and works fine.
How can a normal hub (no buffering!) accept full-duplex?
To my undestanding this is impossible...
Am I wrong?
And, is there a simple way
Of
Sasha
Sent: Wednesday, March 14, 2001 5:24 PM
To: [EMAIL PROTECTED]
Subject: Full duplex and a hub
Hi ALL,
a fast Ether port on a cisco switch (2900XL)
connected to a hub (3com repeater) 10/100 port
reports auto-negotiated full-duplex, and works fine.
How can a normal hub (no buffering!) accept full
oops sorry should be: show port {port}
to check the speed.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Sasha
Sent: Wednesday, March 14, 2001 5:24 PM
To: [EMAIL PROTECTED]
Subject: Full duplex and a hub
Hi ALL,
a fast Ether port on a cisco
Never seen that on a hub (hubs should of course not work with duplex)
However, I have seen this 'faking full-duplex' in other situations. Lights
on the switch (and the routers) indicated full duplex but data transfers (in
different directions at the same time) seemed slow.
I cleared
Hi ALL,
a fast Ether port on a cisco switch (2900XL)
connected to a hub (3com repeater) 10/100 port
reports auto-negotiated full-duplex, and works fine.
How can a normal hub (no buffering!) accept full-duplex?
To my undestanding this is impossible...
Am I wrong?
The real problem here
From: "Howard C. Berkowitz" [EMAIL PROTECTED]
Reply-To: "Howard C. Berkowitz" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: Full duplex and a hub
Date: Wed, 14 Mar 2001 09:09:46 -0500
Snip
Interestingly, until Cabletron and Cisco got into a rather nasty and
pu
Indeed, 3COM has a product called "full-duplex repeater" (what a name...).
This is actually a hybrid of a switch and a repeater: it uses buffering of
incoming
frames and a round-robin method of forwarding them to all egress ports.
However, my question concerns the common device -- no
Hi,
Best look at Full Duplex and what it means. I think either could be a more
appropriate answer. Depending on the device connecting to the serial port. Most
devices you connect to a V.35 interface will indeed run at full duplex.
Dulpex is not an ethernet thing but a comms thing
Ok Ok- ya got me... Of course V.35, RS-232, RS-449, Multimode, etc., etc.
are used to support Full Duplex transmissions. Maybe it was BSMCN on the
brain. As my old Uncle Olauff used to day "this problem is seemingly
obvious to the casual observer :o)
Phil
- Original Message -
Hi,
Can anyone tell me In cisco routers, serial interface with v.35 will work
in Full Deuplex or Half Duplex?
Thanks,
Kiran
_
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Report misconduct and Nondisclosure violations to
To: [EMAIL PROTECTED]
Sent: Thursday, March 08, 2001 4:56 PM
Subject: Serial port Full Duplex or Half duplex?
Hi,
Can anyone tell me In cisco routers, serial interface with v.35 will work
in Full Deuplex or Half Duplex?
Thanks,
Kiran
_
FAQ, lis
Kiran,
It depends on the protocol that you run over the serial interface.
By default, synchronous serial interfaces operate in full-duplex mode . However, the
usage of certain protocols changes that default to half-duplex.
More info here:
http://www.cisco.com/univercd/cc/td/doc/product
My understanding is that serial is full duplex.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kiran Kumar M
Sent: Thursday, March 08, 2001 1:57 PM
To: [EMAIL PROTECTED]
Subject: Serial port Full Duplex or Half duplex?
Hi,
Can anyone tell me
To all who responded, thank you.=20
Mark - that's one (of my no doubt many) points of confusion. I know a =
switch breaks up collision domains and a hub is shared media, therefore =
one collision domain. I also know that the NIC set to 100 means nothing =
as far as half or full duplex goes
I know this isn't a Cisco question per se, and I apologize in advance.=20
Is there such a thing as a full duplex 100BaseTx hub or repeater? I =
thought all hubs/repeaters had to run in half duplex.
Here's the scenario, of sorts. I have a Cogent 1200 100Base TX Class I =
Repeater. I hook two
Well, a full duplex hub is typically called a switch. Just because the NICs
are at 100 Full doesn't mean anything. Many times devices can be set for
auto negotiate and not configure properly. You can force a setting on a NIC
and even if it wrong, it will still work, but there may be errors
: Thursday, February 22, 2001 4:52 PM
Subject: Re: Full Duplex
Yes, you can certainly get more than 100mb total throughput, if you add
the
two directions together. But you can still only get 100 mb in either
direction, even if there's no traffic in one direction. It's really a
matter of semantics
You can argue about semantics all day long but what matters is the actual
performance difference when running full-duplex. I was troubleshooting why
my LTO tape drive wasn't performing as promised. While investigation I
noticed a large number of collisions on a port on a 3524 ( a port
Yes, hence the full-duplex.
tv
- Original Message -
From: "AndyD" [EMAIL PROTECTED]
Newsgroups: groupstudy.cisco
To: [EMAIL PROTECTED]
Sent: Wednesday, February 21, 2001 10:01 PM
Subject: Re: Full Duplex
So on a full-duplex 100 mb ethernet link you could theoretically get
" [EMAIL PROTECTED] wrote in message
9726tq$fj7$[EMAIL PROTECTED]">news:9726tq$fj7$[EMAIL PROTECTED]...
So on a full-duplex 100 mb ethernet link you could theoretically get 200
mbps throughput?? I have had this argument with several people before. I
thought that 100 mb each direction bei
and claim that as the bandwidth, because they can claim a higher bandwidth
that way. But in my opinion it's more useful to say it's 100 mb full
duplex, and that tends to still be the standard, particularly for serial
links.
JMcL
-- Forwarded by Jenny Mcleod/NSO/CSDA on 23/02/2001
PROTECTED]">news:96vudv$dqr$[EMAIL PROTECTED]...
Yes. You'll get 2M Transmit 2M REceive(4M) between AB with full duplex.
With half duplex transfer rate is poor, it is about 1M or less.
You can imply full duplex only with switch, or just host to host link.
With
hub, you can only use half dup
Hi akshay,
If its full duplex you will get 2Mbs of transmit bandwith 2Mbs of
receive traffic... In a half duplex link you will get a total of 2mbs for
transmit and receive.
hope the above helps,
Santosh Koshy
""Network Operations"" [EMAIL PROTECTED] wrote in messa
So on a full-duplex 100 mb ethernet link you could theoretically get 200
mbps throughput?? I have had this argument with several people before. I
thought that 100 mb each direction being possible, if both parties transmit
at the same time but in different directions, you still have 200 mb
Yes it is "THEORETICALLY" possible
but network communications hardly ever work that way...
Santosh Koshy
""AndyD"" [EMAIL PROTECTED] wrote in message
9726tq$fj7$[EMAIL PROTECTED]">news:9726tq$fj7$[EMAIL PROTECTED]...
So on a full-duplex 100 mb etherne
Hello friends,
What does a FULL Duplex link exactly imply?
Suppose i hav a 2Mbps Full duplex link running between say my place a
customer's place.
Practically does it mean i shud get 2Mbps Transmit 2Mbps Receive traffic
simultaneously?
if so, at peak traffic (both trans recv) what
Hi,
Basically full duplex you have a circuit from one device to another that has a send
path to the remote receive and visa versa. Each path can send data independantly ie
both can send and receive at the same time. In a Half duplex the signal is sent on
the same path from both ends when
Yes. You'll get 2M Transmit 2M REceive(4M) between AB with full duplex.
With half duplex transfer rate is poor, it is about 1M or less.
You can imply full duplex only with switch, or just host to host link. With
hub, you can only use half duplex , because each station must detect
collision
Hi Group,
We recently moved one our Management Station - UniX box ( its a Netview
box) from 4th to 5th floor. I have connected it to a CAT55 switch.
When it was coonected to a Cat55 switch previously , it was operating in
full duplex 100mbps. But when i moved it yesterday to another switch
, it was operating in
full duplex 100mbps. But when i moved it yesterday to another switch port
also a CAT 55, the port just doesnt reconfigure to full duplex , 100 Mbps. I
manually tried to configure at the switch port. When i try to do it, the
port gets disconnected.
I have maintained
group trying to communicate at 100mbp not 10mbs.
I can communicate at 10mbps Half duplex but unable to communicate at 100mbp full
duplex any comment anyone. Send reply to [EMAIL PROTECTED]thank in advance
Join 18 million Eudora users by signing up for a free Eudora Web-Mail account at
http
municate at 10mbps Half
duplex but unable to communicate at 100mbp full duplex any comment anyone.
Send reply to [EMAIL PROTECTED]thank in advance
Join 18 million Eudora users by signing up for a free Eudora Web-Mail
account at http://www.eudoramail.com
_
Hi everyone,
Does anyone know if Time Division Multiplexing will work with only half
duplexing or only full duplexing or both. Jeff Lodwick MCSE/CCNA
_
Get Your Private, Free E-mail from MSN Hotmail at
TDM to me means T-1 and similar technology. It is full duplex sending
seperate transmit and receive bit streams.
-Original Message-
From: Jeff Lodwick [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 18, 2000 8:48 AM
To: [EMAIL PROTECTED]
Subject: Is TDM full duplex or half
Half/full duplexing goes back much further. Half duplex implies a shared
media. Often only one can speak at a time. A good analogy would be radio
communication where when one is done speaking they use a key word such as
"over" to indicate that the other may speak. With full duple
ility is that the network adapter is defaulting to
full-duplex mode instead of half-duplex mode. Often, enabling
full-duplex mode on adapters-even when the network configuration (i.e.,
switches or NICs) supports it-actually reduces performance."
Now maybe I don't know something here, but does this
Hi all,
By studying the Book : CISCO LAN SWITCHING by Kennedy Clark I found
this NOTE on Chapter 1 page 15 :" Windows NT4.0 does not support
FULL-DUPLEX operations because of drivers limitations.Some SUN workstations
can also experience this, expecialy with Gigabit Ethernet."
I remember coming across a knowledge base article on Microsoft's site that indicated
poor performance with NICs set to full duplex was because Windows NT didn't support
full-duplex operation. This was one of those cases where when the Microsoft Help Desk
tech had the client change
I believe we have had this discussion in a slightly different form in the
past. There have been numerous problems with NIC's of all sort, full duplex,
half duplex, auto-negotiate, etc and their ability to connect to Cisco
switches. I believe that most of these problems have been corrected
In fact SD stands for start of frame delimiter. It is an essential component
of the synchronization process alongwith the preamble.
Regards
Atif
To: Stephen Ede [EMAIL PROTECTED]; [EMAIL PROTECTED]
[EMAIL PROTECTED]
Date: Sunday, July 30, 2000 9:30 AM
Subject: Re: 802.3 frame and full-duplex
I have 2 questions to submit here...
1) If there are several nodes attached to a 10/100 switch, and all NICs are
in full duplex mode, this means that CSMA/CD is not in effect, loopback is
turned off, and any station can transmit and receive concurrently. But what
happens when 2 or 3
:28 PM
Subject: 802.3 frame and full-duplex
I have 2 questions to submit here...
1) If there are several nodes attached to a 10/100 switch, and all NICs
are
in full duplex mode, this means that CSMA/CD is not in effect, loopback is
turned off, and any station can transmit and receive
le, the VLAN1 (below) it is for every fastethernet
interface? what is the syntax to configure spanning tree and full duplex on
the interface.
Thank you in advance :)
Tong
User Access Verification
Password:
Password:
simtesten
Password:
simtest#sh conf
Using 1315 out of 32768 bytes
!
vers
PROTECTED]
To: "Sim, CT (Chee Tong)" [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Monday, July 03, 2000 12:48 PM
Subject: RE: how to configure VLAN on 2900 switch-how about full duplex an d
spanning tree
Hi Chee Tong,
With your current "show run" below, you're only running on
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