Comments on: Carrier Sense Multiple Access Collision Detect (CSMA/CD) Explained

By: altepar

altepar — Tue, 04 Jan 2011 10:21:41 +0000

Ethernet (IEEE 802.3)
– Logical bus topology
– Physical star or extended star
– Nondeterministic
• First-come, first-served
Token Ring (IEEE 802.5)
– Logical ring
– Physical star topology
– Deterministic
• Token controls traffic
– Older declining technology
FDDI (IEEE 802.5)
– Logical ring topology
– Physical dual-ring topology
– Deterministic
• Token controls traffic
– Near-end-of-life technology

By: molar

molar — Sun, 22 Aug 2010 06:41:18 +0000

First of all, thank you for the great job you are doing. These articles are very informative.

This sentence in the closing comment need the deterministic to change to nondeterministic
“Keep in mind CSMA/CD is a first come, first serve approach (and deterministic as a result)”

To Match with:

“From the above information, we can deduce two things about CSMA/CD. First, it is a nondeterministic approach- meaning first come first serve.”

By: Abhijeet Padole

Abhijeet Padole — Thu, 07 Jan 2010 12:49:46 +0000

Thanks for the great help..You are doing a Good job..teaching free…Thanks again.

By: jagez

jagez — Tue, 15 Dec 2009 11:55:44 +0000

Thanks matey. am soon doing ccna certifications. but cud u plz send me some guidance..

great site tho. and your a great teacher. keep the game flowing… Gods will pay you unnoticingly..

By: roselle

roselle — Thu, 03 Sep 2009 03:11:41 +0000

good job

By: Reda

Reda — Thu, 20 Nov 2008 19:37:22 +0000

thanks man
you’ve just explained it more concisely than my Prof lol
I’m from Casablanca

By: Dalia

Dalia — Tue, 28 Oct 2008 16:17:06 +0000

People should read this.

By: Paul

Paul — Fri, 11 Jul 2008 12:24:48 +0000

Is CSMA-CD in actual use today. I mean are there actually working packet switched networks, which aren’t relics of the victorian age that still don’t use full dupex links and switches?

By: farterx

farterx — Thu, 12 Jun 2008 18:23:53 +0000

Even with CSMA/CD there is still a possibility of collisions, therefore non-deterministic. How can cisco exam say it’s deterministic? hmmm

By: Diesel

Diesel — Fri, 14 Mar 2008 20:35:10 +0000

Perfect explaination from a kind person and a kind Site, keep going