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quick help on router brands

L

lockmac

Senior member
Hi. I am doing an Assignment and need to answer the following questions...and am just wandering if their is a brand you would recommend as being the easiest to find out this sort of information (such as a certain brand may have alot of this information available on their website)

I had a quick look on one of the companys websites and they didnt seem to have a huge range of info available.

Many thanks..heres the question...


<Select two each of available ADSL2+ Modem-Router and a Cable Modem (Router) products in the
market and perform the following comparisons, in tabular form, between the four products, item by
item:
Line Interface (10 marks):
  1. Modulation type
    Modulation bit rates achievable (including distance limitations)
    What error control strategy is used if any?
    Is the modulation sensitive to crosstalk?
    Is a surge protector employed with the product?
    What cable and connector types are required for the line interface?
Host Interface (10 marks):
  1. What host side interfaces are provided? (Hint: Ethernet, Firewire, USB2)
    What bit rates do these support?
    How many ports are provided?
    Is an embedded switching capability provided?
    What configuration interface is provided?
    Is DHCP provided?
    What protocol support is provided (ie PPP or other)?[/
H]
 
Combo DSL Modem/Router are only for DSL, so there is nothing to compare to Cable.

As a rule of thumb the combos "Sux". None of them provides state of the art Router, or and Wireless and, if you need to change one component you need to change the whole thing.

The only thing that you save is One plastic Box, and since the modem can be placed out of the way to begin with it is not a real saving either.

Get a regular modem and read this, http://www.ezlan.net/buffalo.html

 
Ok thanks for that...just quickly, i have chosen to use fibre optic cables in my solution... i need to know though can fibre optic connect to any type of switch or do I need specialised switches? E.g. is their an adapter, as Ive never worked with fibre optic before.

Also just quickly... i cant find any information on the following questions...

  • Modulation Type?
  • Modulation Bit Rates Achievable (including distance limitations)
  • What error control strategy is used if any?
  • Is the modulation sensitive to crosstalk?

What do you think the general population of these routers would have? I would believe that they are sensitive to crosstalk, but have no idea about bit rates achievable, the error control stretegy used and modulation type

Many thanks
 
Originally posted by: JackMDS
Combo DSL Modem/Router are only for DSL, so there is nothing to compare to Cable.

As a rule of thumb the combos "Sux". None of them provides state of the art Router, or and Wireless and, if you need to change one component you need to change the whole thing.

The only thing that you save is One plastic Box, and since the modem can be placed out of the way to begin with it is not a real saving either.

Get a regular modem and read this, http://www.ezlan.net/buffalo.html
Click to expand...

http://www.linksys.com/servlet...ommon%2FVisitorWrapper

??
 
anybody? i really would love some help on these questions

Modulation Type?
Modulation Bit Rates Achievable (including distance limitations)
What error control strategy is used if any?
Is the modulation sensitive to crosstalk?

many thanks
 
ADSL2+ is a standard, as is DOCSIS 1.0/1.1. No matter who you buy a cable modem or dsl modem from, it will hew pretty close to these standards. Information about their modulation types, bit rates achievable and distance limitations on them, etc. can all be found on Wikipedia.

http://en.wikipedia.org/wiki/Docsis
http://en.wikipedia.org/wiki/Adsl2%2B
http://en.wikipedia.org/wiki/A...igital_Subscriber_Line

For instance, from the Docsis page, it uses 64- 256-QAM, can run at up to ~40Mbps, and is sensitive to cross talk, though RG-59 and RG-6 cabling is much less sensitive than Cat5, much less plain old phone wire.
 
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