What is Digg?31 Comments
- Dempf, on 10/12/2007, -10/+83BURY THIS COMMENT OR I EAT YOUR BABIES!!!
- phatvolvo, on 10/12/2007, -2/+28I'll share my meal of babies with you if you just ask politely...
- drgruney, on 10/12/2007, -0/+9Mayhaps it's becuase people find it interesting. Not everyone came to Digg today thinking "gee I wonder how network switches work?" So not everyone thinks to google it. So what?
- twatwaffle, on 10/12/2007, -0/+8Switches = *multiport* bridges
But yea, you sir are correct! - leopardhunter, on 02/18/2009, -0/+7Short version of "How LAN Switches Work."
Switches = bridges - twatwaffle, on 10/12/2007, -0/+6You don't need to be anywhere near a network device if that's how you think switches operate.
Routers stop broadcasts, not bridges.
Bridges usually have 2 sides, and A and B. If the destination MAC is not found on side A, the bridge broadcasts is to side B. Completely opposite of what you are saying.
Switches separate collision domains per port, thus why switches are nothing more than multiport bridges due to a little device called an ASIC.
The difference between switches and bridges *basically* is that switches separate collision domains and routers separate broadcast domains. - Cytranic, on 10/12/2007, -0/+5" switches are like many ported hubs: takes whatever comes in and spits it out on all lines"
I'm glad you think Hubs and Switches are the same...Job Security for me! - galador, on 10/12/2007, -5/+10What the hell, man? I dugg your comment UP, just for spite.
- leopardhunter, on 02/18/2009, -0/+3Maybe we should post a video of someone asking that question.
- twatwaffle, on 10/12/2007, -0/+3Actually everyone.
The Cisco resource for information like this is http://www.cisco.com/univercd - Gregd, on 10/12/2007, -2/+5@twatwaffle.
Well you're certainly living up to your name. I see that you've managed to plug your website twice in this thread, so far. If I want to learn about technology, switches in particular, why would I choose your website? No offense, but who the ***** are you? As far as I know, you're some random guy with a blog. If I want to learn more about the switches that I support, I'll go to the source, read their material and search for more clarification if something isn't clear.
Using this as an opportunity to plug your own website and then extolling it's virtues comes across as a bit egocentric to me. - Gregd, on 10/12/2007, -1/+3@twatwaffle
Ok, so my bad for not making the title "How IEEE Lan Switches Work and How Cisco Implements Them But Not How Juniper, Avaya, 3Com, and Every Other Switch Maker Implements Them. Just Cisco! So Don't Get The Wrong Idea."
Part of what makes digg cool is people commenting back with great resources related to the parent topic. I've seen numerous other comments pointing back to even greater Cisco documentation so perhaps that is part of the reason this made it to the front page. - osbjmg, on 10/12/2007, -0/+2GreatGrizzly - I should ban you, but that wouldn't be fair. You are just uneducated and you can sit down now. You forgot the most important part of a switch (bridge) - mac learning! Hubs do not do this. Most switches also protect against L2 loops and can segment out specific ports for VLANs. There's more to it, but that's what I discuss all day at work, home is a time for goofing off... and porn.
- twatwaffle, on 10/12/2007, -1/+2@ RandomGuySteve
Dont forget about layer 3 and 4 switches as well. L3 switches perform just about as many functions as a router. It all depends on what protocols you are using and in what fashion. - Barryke, on 10/12/2007, -0/+1When i read the text, i realized that i found it to be way to boring.
Maybe the internet has spoiled me, but i can't seem to pay attention to anything non-video! - RandomGuySteve, on 10/12/2007, -1/+1Hubs + Repeaters - layer 1 (data. No discrimination)
Switches + Bridges - layer 2 (frames, destination discrimation)
Routers - well, you get the idea. - inactive, on 10/12/2007, -3/+3OK I dont want to generalize but copying 1 year old articles from HOWSTUFFWORKS in daily bases too lame so please stop posting them. We know there is a page for noobs, called howstuffworks but if some1 interested in, knows where to find it.
- twatwaffle, on 10/12/2007, -1/+1I hear routergod is freggin awesome!
- osbjmg, on 10/12/2007, -1/+1^ #1 most important cisco link you can ever use. Bookmark it!
And also use http://www.cisco.com/go/srnd instead of hiring consultants ;)
Then you can check out http://www.routergod.com when you are bored. - garnetbobcat, on 10/12/2007, -2/+1See a better formatted version of this doc here:
http://www.cisco.com/en/US/tech/tk389/tk390/technologies_tech_note09186a00800a7af3.shtml - amosshapira, on 10/12/2007, -1/+0How do you learn serious stuff, then?
- osbjmg, on 10/12/2007, -2/+1Again, that's www.notquiteleet.com in case you are interested.
Just kidding, but seriously I don't know how you aren't getting flamed hardcore (you have ads on your page!). - twatwaffle, on 10/12/2007, -3/+1Meh I dont make any money from my ads. I just use it to provide feedback about what people are looing for. That combined with SEO on certain keywords.
Its kind of like giving the public what they are looking for. - inactive, on 10/12/2007, -8/+5Interesting Stuff
Dugg. - twatwaffle, on 10/12/2007, -5/+1@Gregd
Who am I. I'm a guy who explains the theories and technologies these devices work off of in a manner laypersons can understand.
By your logic
"If I want to learn more about the switches that I support, I'll go to the source, read their material and search for more clarification if something isn't clear."
This is industry standard common sense. Also the title of this blog is "how switches work". You didn't consider Juniper, Nortel, Avaya, ... the list goes on especially in the international market. Also, dont forget the optical market both in the US and International markets - that is important too.
So the link to a specific vendor has nothing to do with the IEEE theory of which that equipment complies with nor how each company implements it.
I do not release my name on the blog due to confidentiality issues with the company I work for. - twatwaffle, on 10/12/2007, -5/+1Lets run with your logic again.
"Part of what makes digg cool is people commenting back with great resources related to the parent topic"
Cisco has about 75-80% of the networking market in core routing and switching in the US. So if someone wanted to learn about switches, its commin freggin sense to say, HEY! I bet Cisco has some documentation that would help me how to learn about switching!"
As I said before, this is nothing momentous at all. It merely points out the obvious.
No digg. - UnivrslMnstr, on 10/12/2007, -5/+1If you want to get a buried comment on this site, just say anything conservative!
- twatwaffle, on 10/12/2007, -7/+2true,
It is interesting thus why I choose to pursue it as a career and write about it. But if I ever wonder how something works the first thing I do is use a search engine, not come to digg. - twatwaffle, on 10/12/2007, -6/+1www.notquiteleet.com
I write in a much less boring manner.
No offense to anyone. - GreatGrizzly, on 10/12/2007, -11/+0Actually, Switches do not equal Bridges, switches are like many ported hubs: takes whatever comes in and spits it out on all lines
Bridges stop broadcasts, switches do not. - twatwaffle, on 10/12/2007, -13/+2How does a link to a document by a support entity at Cisco make it to the front page?
It has absolutely no personal insight, or effort by the poster.
If you want a personal, first person effort to educate the Internet community on technology then go to http://www.notquiteleet.com
Anyone researching how switches work can find the linked site on their own in an elementary and simple google search.
No digg.
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