Telecommuications Guru

[freekwonder]

Im taking Telecommunications Management at Devry. My homework is to find the TIA and ITUT Definition of a router and switch. I am not asking anybody to do my home. but if somebody can hook me up with a link to the definitions it would help out A LOT I can not find them. Thanks guys.

 

[enry]

http://www.itu.int/sancho/

and

router: http://www.itu.int/sancho/defdetails.asp?lang=en&defid=15820

switch: http://www.itu.int/sancho/defdetails.asp?lang=en&defid=15821

Although there are 200+ definitions of switch (atm switch, frame switch, switching center, switched circuit network, blah...) my guess is the above def is what prof is looking for..

-e

 

[freekwonder]

sweet thanks man. Ya the homework is to find the definition of a router and switch (from ITA and ITUT), and then figure out why a switch can be used as a router. From what I got from those definitions is that a router makes a connectin based on the address, the switch HAS to have a hardwire connection to something. But since both of them have the fucntion of transfering information from one place to another the switch can be used like a router. You just wont have the fire wire features in a switch that the router has in it. Thanks for the help man.

 

[enry]

A router as per the above def operates at Layer 3 - Network Layer in the OSI model.

If we use the example of an ethernet switch, it works at the ethernet layer, forwarding packets to the correct port based on its internal MAC (Media Access Control) address table. This is layer 2 - Data Link Layer in the OSI model.

[Rambling mode=on] Layer 2 was never designed to be routed, and though you could implement something that could be defined as ethernet routing, you would scare alot of people. Your router would have to (for example) forward all arp requests to all reachable networks, or keep an internal table of all available mac's, or proxy arp for the destination IPs (let's say layer 3 is IP) and then switch the dest mac as it goes through the router.
[/Rambling]

Memorize this document: http://www.uwsg.iu.edu/usail/network/nfs/network_layers.html

 

[freekwonder]

sweet thanks man. the link helped out. we have the OSI and TCP/IP layers in our book, but that was better.

 

[katsmp3]

I play with lots of routers and switches everyday. How exiting is my life.

 

[Protege01MP3]

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

THE EVIL OSI MODEL!!! GET OUTTA MY HEAD!! GET OUTTA MY HEAD!!!

A ll
P rograms
S eem
T o
N eed
D ata
P rocessing

 

[LinuxRacr]

I always remembered it like so:

1. Please
2. Do
3. Not
4. Throw
5. Sausage
6. Pizza
7. Away

 

[sttl013]

A
Priest
Saw
Two
Nuns
Doing
Pushups

Just depends which end you start from.