| Author |
Message |
Tito
Guest
|
 Posted:
Thu Dec 30, 2004 3:46 pm Post subject:
Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
What Media Access Control protocol does Ethernet and IEE 802.e use ?
CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
And IEEE 802.11 uses CSMA / CA , right ?
Tito |
|
| Back to top |
|
 |
Walter Roberson
Guest
|
| Posted:
Thu Dec 30, 2004 4:42 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
In article <30RAd.6616$dr.3157@news.ono.com>, Tito <a@a.com> wrote:
:What Media Access Control protocol does Ethernet and IEE 802.e use ?
:CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
:And IEEE 802.11 uses CSMA / CA , right ?
You can read all the gory details yourself on IEEE's web site.
http://standards.ieee.org/getieee802/
Or for a summary, see
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/ethernet.htm
--
And the wind keeps blowing the angel / Backwards into the future /
And this wind, this wind / Is called / Progress.
-- Laurie Anderson |
|
| Back to top |
|
|
Patrick Schaaf
Guest
|
| Posted:
Thu Dec 30, 2004 4:46 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
Tito <a@a.com> writes:
| Quote: | What Media Access Control protocol does Ethernet and IEE 802.e use ?
CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
And IEEE 802.11 uses CSMA / CA , right ?
|
Nowadays, as the saying goes: no CS, no MA, and no CD.
What is 'CA' supposed to mean?
Apart from that, the questions are ill-posed, as none of them cover
material differences between "802.3" and "Ethernet" - both of these
largely overlapping topical areas encompass the same set of various
access methods, as far as I know.
For all practical purposes, "802.3" and "Ethernet" are used as synonyms.
As usual, it is not really possible to guess the _correct_ answers to your
homework problem set, because we don't know in which way the material has
been covered in the course you are taking. In this case, we do not know
what exact meaning "Ethernet" could have had in your course. Can you
clarify for us?
best regards
Patrick |
|
| Back to top |
|
|
James Knott
Guest
|
| Posted:
Thu Dec 30, 2004 5:51 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
Tito wrote:
| Quote: | What Media Access Control protocol does Ethernet and IEE 802.e use ?
CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
And IEEE 802.11 uses CSMA / CA , right ?
Tito
|
Why do I smell homework questions? |
|
| Back to top |
|
|
Rich Seifert
Guest
|
| Posted:
Thu Dec 30, 2004 11:27 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
In article <30RAd.6616$dr.3157@news.ono.com>, Tito <a@a.com> wrote:
| Quote: | What Media Access Control protocol does Ethernet and IEE 802.e use ?
|
I assume you mean 802.3, not 802.e (the keys are adjacent on a qwerty
keyboard).
| Quote: | CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
|
Ethernet/802.3 uses 1-persistent CSMA, with collision detect (in
half-duplex mode).
--
Rich Seifert Networks and Communications Consulting
21885 Bear Creek Way
(408) 395-5700 Los Gatos, CA 95033
(408) 228-0803 FAX
Send replies to: usenet at richseifert dot com |
|
| Back to top |
|
|
News Me
Guest
|
| Posted:
Fri Dec 31, 2004 2:30 am Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
Patrick Schaaf wrote:
| Quote: |
What is 'CA' supposed to mean?
|
Collision Avoidance, ala Apple's LocalTalk.
NM |
|
| Back to top |
|
|
Tito
Guest
|
| Posted:
Fri Dec 31, 2004 2:17 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
Walter Roberson escribió:
yes, I have IEEE 802.3 standard, but dont find exact protocol. I have
read in some books that it uses CSMA/CD 1 persistent. |
|
| Back to top |
|
|
Tito
Guest
|
| Posted:
Fri Dec 31, 2004 2:18 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
James Knott escribió:
| Quote: | Tito wrote:
What Media Access Control protocol does Ethernet and IEE 802.e use ?
CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
And IEEE 802.11 uses CSMA / CA , right ?
Tito
Why do I smell homework questions?
For your information, it is not homework questions. |
I like to study computer networks, and Im reading some books. Some of
these books tells 802.3 uses CSMA/CD 1 persistent , but Im not sure. |
|
| Back to top |
|
|
Tito
Guest
|
| Posted:
Fri Dec 31, 2004 2:18 pm Post subject:
Re: Media Access protocol on IEEE 802.3 and Ethernet ? |
|
|
Patrick Schaaf escribió:
| Quote: | Tito <a@a.com> writes:
What Media Access Control protocol does Ethernet and IEE 802.e use ?
CSMA persistent ? CSMA/CD ? CSMA non persistent ? CSMA / CA ?
And IEEE 802.11 uses CSMA / CA , right ?
Nowadays, as the saying goes: no CS, no MA, and no CD.
What is 'CA' supposed to mean?
Apart from that, the questions are ill-posed, as none of them cover
material differences between "802.3" and "Ethernet" - both of these
largely overlapping topical areas encompass the same set of various
access methods, as far as I know.
For all practical purposes, "802.3" and "Ethernet" are used as synonyms.
As usual, it is not really possible to guess the _correct_ answers to your
homework problem set, because we don't know in which way the material has
been covered in the course you are taking. In this case, we do not know
what exact meaning "Ethernet" could have had in your course. Can you
clarify for us?
best regards
Patrick
CSMA/CA is "Collision avoidance" used by 802.11 networks |
|
|
| Back to top |
|
|
|
|
|
|
FAQ
Memberlist
Register
Profile
Log in to check your private messages
Log in