Where does bandwidth come from?

Kassem

Hey guys,

Last night in bed, I was thinking about this... Where does the bandwidth come from? Why can't Lebanon generate its own bandwidth?

arithma

It's a network. Bandwidth is connectivity. You can think of it exactly as a LAN network. Your neighbors up the floor have hard wire connectivity between their pcs. They can access each others files with ease and speed. You're connected to them using a monkey interpretting morsecode on each end, or a two way ant path each carrying a bit. Simply, you're barely connected to them. However if you have several PCs around in your house, you can establish as much connectivity locally as you can afford. Still that won't affect your access to your neighbors. Once you establish high internal connectivity, all you need is a high bandwidth connectivity with your neighbors to actually be part of the network rather than merely connected to it.

Kassem

Ah I get it. What you're trying to say is that once you improve the quality of the internal connectivity i.e use optic fiber networks, you can then improve external connectivity by importing more bandwidth (which is what's happening with that cable). But the question is, where is the bandwidth generated from? And how? (I'm not asking for deep technical details, just the concept).

Flakk

Cadmos Cable from Cyprus which i know is connected mainly to Europe but it was outdated and last i heard they upgraded it on 30th of may. Cable from syria. A few sat downlinks.

http://en.wikipedia.org/wiki/CADMOS

CADMOS is a submarine telecommunications cable system in the Mediterranean Sea linking Cyprus and the Lebanon.

It has landing points in:

* Pentaskhinos, Cyprus
* Beirut, Lebanon

It has a design transmission capacity of 622 Mbit/s and a total cable length of 230 km. It started operation on 8 September 1995.

Now as stated in the http://www.mpt.gov.lb/cadmos.htm the owners are
Cyprus and Syria and other countries 62%
Lebanon 38%

Berytar cable that connects Syria to Lebanon. http://www.mpt.gov.lb/berytar.htm
Aletar Cable that connects Syria to egypt. http://www.mpt.gov.lb/aletar.htm
Ugarit cable eastwards to Syria
UGARIT and CADMOS together with the BERYTAR cable system (Beirut – Tartous), are fully integrated into a secure self-healing ring, interconnecting Cyprus with Lebanon and Syria.

If you look at the cable's stats their capacities are really limited.

Take a look here.
http://www.cytaglobal.com/cytaglobal/page.php?pageID=14
Should explain more about most of the submarine cables in the Mediterranean sea.

arithma

bandwidth IS the connection you have to other machines. You do not generate bandwidth, it's merely a property of the connection you have to another machine. I can have a 1Gps connection locally to my other PC at home but that won't make my access to the internet any better or worse. Be it I have a 1Gps connection to one of the servers I work on in the US ->I have huge connectivity to the internet. Eventually, bandwidth is the limitation of how much you can access information on other physical machines that are mapped into a global IP. You do not generate local PC-to-PC bandwidth. Neither do you generate PC-Internet Bandwidth.

Georges

arithma wrotebandwidth IS the connection you have to other machines. You do not generate bandwidth, it's merely a property of the connection you have to another machine. I can have a 1Gps connection locally to my other PC at home but that won't make my access to the internet any better or worse. Be it I have a 1Gps connection to one of the servers I work on in the US and I have huge connectivity to the server. Eventually, bandwidth is the limitation of how much you can access information on other physical machines that are mapped into a global IP. You do not generate local PC-to-PC bandwidth. Neither do you generate PC-Internet Bandwidth.

Than why don't we have a huge connectivity to servers. What's forbidding us to do so !
If it's about the cost, i'm pretty sure that this issue can be solved easily. I guess it's all about the shares and benefits.
What a shame.

What about the LIX... Any achievements ?

rolf

It comes from the bandwidth tree.

Flakk

Yorgi wrote
arithma wrotebandwidth IS the connection you have to other machines. You do not generate bandwidth, it's merely a property of the connection you have to another machine. I can have a 1Gps connection locally to my other PC at home but that won't make my access to the internet any better or worse. Be it I have a 1Gps connection to one of the servers I work on in the US and I have huge connectivity to the server. Eventually, bandwidth is the limitation of how much you can access information on other physical machines that are mapped into a global IP. You do not generate local PC-to-PC bandwidth. Neither do you generate PC-Internet Bandwidth.
Than why don't we have a huge connectivity to servers. What's forbidding us to do so !
If it's about the cost, i'm pretty sure that this issue can be solved easily. I guess it's all about the shares and benefits.
What a shame.

What about the LIX... Any achievements ?

If you read my post, look at the cables capacities. The Cadmos cable is 622mbs max! and has been operating since 1995. They need to upgrade those cables or find new routes.

J4D

Yorgi wroteWhat about the LIX... Any achievements ?

LIX currently halted , giving some time for improvement after the promises of near improvement regarding the internet situation .....
we can of course continue work if we feel that we have waited for too long , but through some personal eyewitness they are actually working on the issue .

edit : NEVERTHELESS; LIX should be implemented in Lebanon once the fiber network is fully functional . with its main propose to reduce outside bandwidth consumption and reduce local file transfer down/up rates as well as creating VPN for many companies across a lot of different ISPs .

Georges

@Flakk : I don't understand how my post is related to yours...

@Jad : Exactly, that's what i meant. The LIX project should not stop even if we have better bandwidth.

kareem_nasser

Thanks you Kassem for this topic because i was thinking the same thing yet logically we might say
1- Why dont we have bandwidth in Lebanon as much as we want like even countries with lower GDP have better bandwidth?
1- Basically what i am trying to say is that as we know Globalization's critical reactor is the internet shouldnt it be shared among countries?
3- Is there data on the global bandwidth per second in any given moment?

nader-sleiman

Hi all

Bandwidth is the transfer rate of bits per seconds, so as it increases the connection speed obviously increase.

@ Flakk that cadmos cable was OC12 a mid Internet connection bandwidth, max of what's available on earth for now is a 100 Gigabit Ethernet, which Lebanon can obtain within the next decade.(matter of time), indeed its a matter of High Expense ,its always been the reason.

Perhaps some sort of an innovative algorithm can goes on to transfer compressed data that requires few bits to imply an information,its like the Rar achiever where it compresses data but still implies same information, so some interpreter layer might be developed and added to both sides (Transmitter/Receiver), but guess that its nearly impossible , unless something huge goes on.

Georges

Nader.Sleiman wrote...
Perhaps some sort of an innovative algorithm can goes on to transfer compressed data that requires few bits to imply an information,its like the Rar achiever where it compresses data but still implies same information, so some interpreter layer might be developed and added to both sides (Transmitter/Receiver), but guess that its nearly impossible , unless something huge goes on.

*sniff* NuclearCat *sniff*

nader-sleiman

Yorgi wrote
Nader.Sleiman wrote...
Perhaps some sort of an innovative algorithm can goes on to transfer compressed data that requires few bits to imply an information,its like the Rar achiever where it compresses data but still implies same information, so some interpreter layer might be developed and added to both sides (Transmitter/Receiver), but guess that its nearly impossible , unless something huge goes on.
*sniff* NuclearCat *sniff*

who :) ?

J4D

Nader.Sleiman wrotePerhaps some sort of an innovative algorithm can goes on to transfer compressed data that requires few bits to imply an information,its like the Rar achiever where it compresses data but still implies same information, so some interpreter layer might be developed and added to both sides (Transmitter/Receiver), but guess that its nearly impossible , unless something huge goes on.

this is actually done , nuc can confirm this .

nader-sleiman

everything almost is already done, but further enhancements can take place, there always are infinite potentials for everything , can't guarantee that a human brain will find a solution though, consider different music compression formats , also different algorithms to measure a shortest path =].

Flakk

Yorgi wrote@Flakk : I don't understand how my post is related to yours...

What do you mean?
you asked why theres isnt a huge connectivity to servers and i answered that the Cables connecting us to outside servers are outdated and their capacities very limited to todays standards.

Georges

Flakk wrote
Yorgi wrote@Flakk : I don't understand how my post is related to yours...
What do you mean?
you asked why theres isnt a huge connectivity to servers and i answered that the Cables connecting us to outside servers are outdated and their capacities very limited to todays standards.

U got it the other way around. I was asking about the reason that forbids us from upgrading these cables. Is it the cost ? The distribution of shares ? etc...

Flakk

Yorgi wrote
Flakk wrote
Yorgi wrote@Flakk : I don't understand how my post is related to yours...
What do you mean?
you asked why theres isnt a huge connectivity to servers and i answered that the Cables connecting us to outside servers are outdated and their capacities very limited to todays standards.
U got it the other way around. I was asking about the reason that forbids us from upgrading these cables. Is it the cost ? The distribution of shares ? etc...

Oh okay, sorry :P

I remember reading somewhere in an article that its not the cost of the cables that is preventing us from doing that. We are able to afford their costs.
But there are many reasons we are not able to get them, including pressure from neighboring countries (Israel) and other countries (USA and France).

Internally the government approved on upgrading the cables in terms of funding but the past telecom ministers usually put most of the money in their pockets. The sharehold of the IMEWE cable has been bought in 2007 by ogero which was a good move i think, that same cable is coming to Lebanon by the end of June as i have heard.