Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 10-09-2008, 05:12 PM   #31
LQ Newbie
Registered: Oct 2008
Posts: 1

Rep: Reputation: 0
Question Newbie - just wondering

Just stumbling and have gotten a handle on the differences between a router, a bridge, a switch and a hub but I'm wondering:

1.) I'm under the impression that having just a router (which now usually performs the same functions as the above) is sufficient for most home networkers. Given that, why would someone want/need all the other gear? What are the benefits of my adding a switch or hub to my home network of three wired desktops and one wireless laptop?

2.) Why and how is this used in business? I mean, it seems counter productive to have hundreds of hosts waiting for each other to shut up so they can speak and or having to "shout" above the din of everyone else to get heard - and then have to be heard by everyone in the room (and possibly down the hall) to use the analogy used early in this thread.

Maybe I've got this all wrong. I admit, this is an old thread and I'm afraid no one is going to even see this, but I'm just trying to find out what circumstances dictate the use of hubs and switches, especially in wired situations. Is it cost??
Old 10-11-2008, 05:25 PM   #32
Registered: Jan 2003
Location: Cambridgeshire, UK
Distribution: Mint (Desktop), Debian (Server)
Posts: 891

Rep: Reputation: 184Reputation: 184
Originally Posted by exvor View Post
i think alot of people here are confused on what a router is here.

A router is a device that routes one network to another network usually used to subnet a network. what you do when you add a router is you allow one network to belong to a biger network of other computers. Routers dont nativly have more then 2 eathernet connections.

Here is where the confusion gets worse.

Most of todays routers have built in switches and hubs so everyone things routers have more then 2 connections

And I'm afraid that you are one of the confused ones. Routers dont nativly have more then 2 eathernet connections? Who told you that?

A router is a L3 packet forwarding device. It can be implemented in Software, e.g. a linux pc or a cheapo router, or it can be hardware assisted, e.g. a Cisco router. A l3 switch is simply a router with lots of ports.

The confusion arises when a small router has a switch built into it, e.g. Cisco 837, the router is connected to the switch internaly, only switchports are externaly accessible.

Most L3 switches are able to run their ports as L3 router interfaces or in L2 switch ports grouped into vlans, a virtual router port can be assigned to a vlan to make the vlan routable, even though the physical ports are running as switch ports.

In no case are the number of ports on a router limited to two.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hub or router? kuplo Linux - Wireless Networking 1 11-26-2005 03:39 PM
networking with router+hub mithereal Linux - Networking 3 10-30-2005 05:22 PM
hub vs. router mikeshn Linux - Networking 16 11-08-2004 10:33 AM
Using PC as an Ethernet hub (and router) damon12campagna Linux - Networking 1 02-23-2004 12:14 AM
router or hub loganwva Linux - Networking 9 04-11-2002 06:42 PM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 03:32 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration