BSNL DataOne MultiUser Hardware Setup Diagram

  • Thread starter Thread starter agnivo007
  • Start date Start date
  • Replies Replies 49
  • Views Views 30,576
Originally posted by b0bee@May 21 2005, 01:05 AM
I thought only difference was that multiuser plan will have multi public ips

but thats not working for me anymore..
anyone here has any clue.. ? here

but please dont tell me again that I am confused
if i am doing something wrong let me know
that will be of better help
Thanks
[snapback]9728[/snapback]
Click to expand...
[/quote]

What I could gather so far is that Multiuser ADSL conections have better contention ratio. Contention means that the connection from your local exchange to the ISP is shared by other users. It is quoted as a ratio e.g 50:1 - meaning a maximum of 50 people will be sharing your allocated bandwidth (e.g. 512kbps). In actuallity the number of people sharing bandwidth is more complex it tends to be more like 3400 512kbps users sharing a 34Mbps connection, which means that a few users running at full speed have less of an affect on other users. In case of Multiuser connection, contention ratio is like 20:1. It is not necessary that such connections have multiple IPs. It depends on the agreement with the provider and they may charge more for giving multiple IPs. In case there is multiple IP (also called Multi-NAT) this is what I found -

"In the most common situation, NAT is used to translate from a single public IP address to multiple internal private IP addresses; we call that one-to-many NAT (one public IP address to many private ones). You may instead have multiple public IP addresses and want each of those to map directly to multiple internal private IP addresses; this is known as many-to-many NAT. In this way, internal PCs are addressable directly from outside, but on a public IP address rather than their actual internal IP address. Multi-NAT allows this - your ADSL router will allow you to build a table of which public IP address maps to which internal IP client address. DSL services for business users are largely sold as multi-user packages - i.e., designed to meet the broadband needs of 2-25 users on a local area network. (Most residential DSL services are designated for single-user use, although in theory, with some competent technical tweaking, more than one PC can also access them). 'Multi-user' can - and often is - confused with the number of IP addresses supplied as part of a service provider's package, and relates to issues included (or excluded) in individual Providers' terms and conditions."
 
Hmm...Quite resourceful discussion going on...But Santanu, may I know the sources ?:lol:
 
Its from various sources - mostly from the FAQs of ADSL providers abroad, particularly those who give the "Multi-NAT" options. I did a google search with keywords like "Multi-user and Single-user DSL" etc. The links would come up mostly at the top.
 
Well if we apply the contention rule then i should atleast at sometime or most of the time get the bandwidth which i am paying them for>>I get only upto 200 KBps.. and never crosses more then 210 KBps..whereas according to my plan I should get 256 KBps..and as I have seen from this forum postspeople with 512 and 256 KBps plans are getting a lot better bandwith, most of them more then what they have asked for...I tried searching on the net elsewherewhat I have gathered is most of 2Mbit plan holders are having the same problembut as they all are getting near 200 KBps they think they are getting 2 Mbit..which is not the case...And I agree with Hulo it is not necessary that multiuser plan have multi public ips.. but since I was getting it at one point of time ..so I was wondering If now I am doing something wrong ..or if BSNL has changed somethingOther things which are mentioned elsewhere in the forum..According to me the best MTU for BSNL is 1480..I ran a test through netspeed software pinging BSNL different servers as well as some known ISP'S on the net through which our data is routed on net ... (International Gateways) and it allways come as 1480 .. I think you all try once 1480 as MTU and see if it is better then 1430 or not ..for me it is..
 
Originally posted by agnivo007@May 22 2005, 02:38 PM
Santanu, :lol:

Is multi-NAT available with DataOne home plans? If possible, then how can one configure on ADSL Router ?
[snapback]9845[/snapback]
Click to expand...
[/quote]

I don't think so but BSNL does not clearly speak of Multi-NAT for business users either. But the Business 1200 plan specifically mentions it is single user whereas the other three business plans mention multi-user. BSNL FAQ includes a writeup on contention ratio, as I checked up now. Also from their FAQ, it seems that business plans have better contention ratio. As for the difference between home and business plans, their FAQ says -

"What is the difference between DataOne home and DataOne business?

Both of these connections offer high speed Internet access respectively for home and office environment. In DataOne for business connecting more than one computer may be allowed along with other possible features like extra email addresses, domain name, web hosting space as and when introduced. "

Not very enlightening though. As for b0bee's problem, I think it is best to ask the BSNL tech guys as none of their writeups abt various plans clarify the issue.

Anyway, check the attached .doc file from BSNL which discusses speed related issues in ADSL.
 
I read the BSNL document on speed issues. They have provided lots of "technical excuses" for not having the desired speeds. I think they just want to keep these excuses handy in case anyone complains of not getting the advertised speed and files a case in the consumer court. Going by the document, it sounds that we are incredibly lucky that we are getting anywhere near the advertised speed. As the document says - "TCP and PPPoE will have overhead bytes which can vary from 5% to 25%, So you can expect up to 25% of your purchased speed at least when counting application data transfer rate. Making up a rule of thumb here: Given a broadband line speed, dividing by 8 and taking off 15% is a reasonable estimate of the maximum likely data download speeds (in bytes of data) you will manage to get." :wacko:
 
And I'm getting 45-98KBps sometimes!!! (conn.=32KBps) :wacko: Hope this remains forever...even after they add a large no. of customers. :lol:3 cheers for Calcutta Telephones (till date !) :ph34r: "Transform your Copperline to Goldmine!" - do u remember, santanu ?? :lol:They have kept their promise in kolkata. Let's see what the do for the whole country ! And they are poor documentors as well !! :lol:And good research work, fellow !!!
 
:rolleyes: I have purchased a D-Link USB router. Will surrender the UTStar Modem to BSNL. Speed some time go beyond 220KBPS and then comes down to 26KBPS.
 
You must log in or register to reply here.
Back