How did the misuse of the word bandwidth become so popular?

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Nothinman

Elite Member
Sep 14, 2001
30,672
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Just very limited routers. I guess my argument
is similar to saying that Justin Timberlake is music

Except that Linksys routers are still usefull, Justin Timberlake is not.
 

Mucman

Diamond Member
Oct 10, 1999
7,246
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Originally posted by: Nothinman
Just very limited routers. I guess my argument
is similar to saying that Justin Timberlake is music

Except that Linksys routers are still usefull, Justin Timberlake is not.

That's something I will definitely agree with you on ;)

 

Barnaby W. Füi

Elite Member
Aug 14, 2001
12,343
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Yeah, call me a network layman, but the definition of router that I know is "connects two different networks." A cheapo home router does that.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
ughh,

Well in the truest sense, yes the little SOHO boxes are routers. I hate to say it but they are. In the whole big scheme of networks and the simple definitions we use like segment (collision domain), network (broadcast domain), bridge, router, firewall - yes the little linksys is a router.

Its just hard to say because its primary purpose is NAT.
 

Barnaby W. Füi

Elite Member
Aug 14, 2001
12,343
0
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Originally posted by: spidey07
ughh,

Well in the truest sense, yes the little SOHO boxes are routers. I hate to say it but they are. In the whole big scheme of networks and the simple definitions we use like segment (collision domain), network (broadcast domain), bridge, router, firewall - yes the little linksys is a router.

Its just hard to say because its primary purpose is NAT.

A motorcycle is a cycle with a motor, so mopeds are motorcycles too. :p
 

ktwebb

Platinum Member
Nov 20, 1999
2,488
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Copying and paste didn't work too well but definitions from whatis.com, webopedia.com, dictionary.com, yourdictionary.com and a few other dispute the proclamation that bandwidth is being used incorrectly. The crux is digital devices measure bandwidth in bits per second
 

mboy

Diamond Member
Jul 29, 2001
3,309
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Originally posted by: Nothinman
That still isn't as bad as caling those Linksys NAT boxes FIREWALLS :)

They could be if they'd let you edit the rules on the box, like I said a chunk of them run Linux so giving access to the iptables rule file shouldn't be that hard for them.


RIght but most don't.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
fine.....I'll blow your minds anyway.

NAT is on of the most effective "firewall" techniques anyway. Think about it, only replies to requests initiated from the "inside" are allowed. beautiful really.
 

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
29,557
431
126
Bandwidth has a general meaning of how much information can be carried in a given time period (usually a second) over a wired or wireless communications link. For example, a link with a broad bandwidth - that is, a broadband link - is one that may be able to carry enough information to sustain the succession of images in a video presentation.
More technically, bandwidth is the width of the range of frequencies that an electronic signal occupies on a given transmission medium. Any digital or analog signal has a bandwidth.

In digital systems, bandwidth is expressed as bits (of data) per second (bps). Thus, a modem that works at 57,600 bps has twice the bandwidth of a modem that works at 28,800 bps.

In analog systems, bandwidth is expressed in terms of the difference between the highest-frequency signal component and the lowest-frequency signal component. frequency is measured in the number of cycles of change per second, or hertz. A typical voice signal has a bandwidth of approximately three kilohertz (3 kHz); an analog television (TV) broadcast video signal has a bandwidth of six megahertz (6 MHz) -- some 2,000 times as wide as the voice signal.

The above is a Quote from:
http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci211634,00.html

According to this there is Digital Bandwidth which is used to express parameters like in Network, and []bAnalog Bandwidth[/b] expressing the old fashion way (as mentioned in my post above.)

 

chsh1ca

Golden Member
Feb 17, 2003
1,179
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Originally posted by: ScottMac
I'll toss in a couple cents worth ....

The RFC addresses are perfectly good addresses, and they'll route just as good as any other IP address - internally. BY CONVENTION those addresses are filtered at the ISP's user-facing boundry routers. They will be filtered on their way to the Internet at the first ISP router they hit. They should also be filtered (it's recommended that they be filtered) on the outside interfaces of firewalls.

127.0.0.1 won't route anywhere. :D

Not only that, but ingress filtering (of any addresses -- class C or otherwise) is hardly ever implemented unfortunately.

IP MASQ is just SNAT with a connection tracker thrown in to ensure that outbound reply traffic is allowed to come back through the router to its proper target. This means that you don't have to open up the ephemeral port range for everyone. Like Spidey says a NAT box is basically the best firewall out there. Especially one with no DNAT rules. :D