so 5.8gbps bandwith and 50k+ users with 1.5mbps Unlimited at 800. Average users uses their 1mbps 499 unlimited pack. So how much is the profit? Their DC ++ is said to contain every media content in world about 320TB + so they save a huge amount of bandwith from that I guess :Sas per their infrastructure 5860mbps they can feed 5thousand 1mbps unlimited users. But they have 50,000 users so how cum network is managed?? Do they run their STM links at full capacity? I guess at peak hours 20-25thousand people are online at a time downloading or surfingif they use BSNL FTTH 100mbps 40links priced at 83k they will sum up to 33lakhs saving 2lakhs :haha:
-
Amazon Deals - ToS - Warp
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Best Leased Line for small data centre?
- Thread starter U.Kunwar
- Start date
- Replies 21
- Views 7,164
mgcarley
Founder, Hayai Broadband
so 5.8gbps bandwith and 50k+ users with 1.5mbps Unlimited at 800. Average users uses their 1mbps 499 unlimited pack. So how much is the profit? Their DC ++ is said to contain every media content in world about 320TB + so they save a huge amount of bandwith from that I guess :S
Caching will be more important for them than DC++. DC++ requires the users to actively go and use (and know how to use) DC++ clients and hubs and all that, which most of those 50k users do not.
I don't know how much their profit margins are - if they're charging 499 for 1mbps unlimited then they must be contending bandwidth at at least 1:4 to break even, but I expect this ratio to be higher, as they have to allow for expansion and peak-traffic, expenses and of course. profit. Plus of course, they also have those 10mbps plans so the ability for those customers to get multi-megabit speeds needs to be accounted for.
as per their infrastructure 5860mbps they can feed 5thousand 1mbps unlimited users. But they have 50,000 users so how cum network is managed?? Do they run their STM links at full capacity? I guess at peak hours 20-25thousand people are online at a time downloading or surfing
Doubtful. They're not supposed to run their links at more than 80% capacity. Presumably they must be contending traffic at at least 1:10 which is roughly in line with what MTNL claims to contend theirs at. But may be more, may be less.
if they use BSNL FTTH 100mbps 40links priced at 83k they will sum up to 33lakhs saving 2lakhs :haha:
Ummm... no. Also, you got the maths wrong.
Even if it were possible, that would be 59 links * Rs83k/month = 49 lakhs per month = ~5.9Cr per year, but then, that would be with already contended bandwidth, so you'd have contention upon contention meaning probably 100 users per megabit - and that wouldn't be fun.
Caching will be more important for them than DC++. DC++ requires the users to actively go and use (and know how to use) DC++ clients and hubs and all that, which most of those 50k users do not.
I don't know how much their profit margins are - if they're charging 499 for 1mbps unlimited then they must be contending bandwidth at at least 1:4 to break even, but I expect this ratio to be higher, as they have to allow for expansion and peak-traffic, expenses and of course. profit. Plus of course, they also have those 10mbps plans so the ability for those customers to get multi-megabit speeds needs to be accounted for.
as per their infrastructure 5860mbps they can feed 5thousand 1mbps unlimited users. But they have 50,000 users so how cum network is managed?? Do they run their STM links at full capacity? I guess at peak hours 20-25thousand people are online at a time downloading or surfing
Doubtful. They're not supposed to run their links at more than 80% capacity. Presumably they must be contending traffic at at least 1:10 which is roughly in line with what MTNL claims to contend theirs at. But may be more, may be less.
if they use BSNL FTTH 100mbps 40links priced at 83k they will sum up to 33lakhs saving 2lakhs :haha:
Ummm... no. Also, you got the maths wrong.
Even if it were possible, that would be 59 links * Rs83k/month = 49 lakhs per month = ~5.9Cr per year, but then, that would be with already contended bandwidth, so you'd have contention upon contention meaning probably 100 users per megabit - and that wouldn't be fun.
What is contending traffic actually? If a 1mbps line is shared among 10users that's what I understand about contention ratio then 1024kbps/10users=102kbps but TRAI guideline is to provide 80% that is min 768kbps so how cum its possible? I read somewhere on the internet that BSNL shares a 33mbps line to 300users across an exchange.
mgcarley
Founder, Hayai Broadband
What is contending traffic actually? If a 1mbps line is shared among 10users that's what I understand about contention ratio then 1024kbps/10users=102kbps but TRAI guideline is to provide 80% that is min 768kbps so how cum its possible?
Whoa whoa, stop there. That's not how contention works. It's not "if there is a 1mbit's line it's shared between 10 users" because it's not contention at the last mile that we're worrying about here, it's contention as a sum of the total available bandwidth, as in "if the ISP has 1gbit/s to the outside world, therefore a contention of 1:10 means they should not sell more than 10gbit/s worth of service", although the rules state that they could sell up to 50gbit/s worth of service if they really wanted to.
How much is 10gbit/s of service going to be? Well, that is entirely up to the ISP and what plans he wants to provide. If he decides on 1mbit/s plans at a 1:10 contention ratio, that's 10,000 customers. Or 10mbit/s customers is 1,000 customers. Or 100mbit/s for 100 customers. And so forth. The higher the speed, the higher the contention ratio needs to be to justify it economically BUT CONVERSELY, the less the customers are likely to notice.
As for the 80% rule, if an ISP sells you a 1mbit/s line they are obliged to provide up up to 80% of that - within their network but to the outside world the max they can guarantee you is about 20kbit/s for every megabit they sell you, so a Speedtest result that gives you only like 0.4mbit/s during peak hours is actually not a violation of anything if you can still get >0.8mbit/s to a server within your ISP's network. Or, if you're on ADSL and your line syncs at 80% of the speed it's considered to be OK (so if you're promised 1mbit/s and your modem syncs at 805kbps or so, you're within the limits and nobody is likely to care if you complain).
Unfortunately, many of the TRAI guidelines are actually too difficult for your average person to measure and desperately need clarification - this goes for the "80% rule" as well as contention ratios, because both are frankly too easy to fudge.
I read somewhere on the internet that BSNL shares a 33mbps line to 300users across an exchange.
This is different again. How BSNL contends it's bandwidth is their own thing, but typically a DSL line is given x amount of bandwidth as a committed information rate, and the speed you're sold is a burst speed. This is probably the case with BSNL (and other operators) but because the burst speed is not significantly higher than any CIR they might have (and that they have slow unlimited plans), slowdowns are more noticeable for more time during the day.
I don't know BSNL's numbers, but in NZ, ADSL lines get 45 or 90kbit/s as a CIR even though most of the time I would get 16+mbit/s were I to be downloading something (locally... information from the US or Aussie is an entirely different matter). Basically though, because there are hundreds of lines connected to an exchange or cabinet, you're able to get these kinds of speeds much of the time: if a cabinet serves 500 homes, you're looking at say 45kbit/s * 500 = 225mbit/s or so is supplied to that cabinet.
Obviously 10 or 12 users downloading simultaneously would saturate that upstream but because the attainable speeds are usually 16+mbit/s, it means download times are short, so you have a 1 gigabyte file coming down in a few minutes and then the lines are free for the other 490 customers. Most of the time, nobody ever even notices speed drops except when a lot of people in one area are on a particular ISP that does offer "unlimited" then their speeds drop right from 16+mbit/s to like 0.5 or 1mbit/s... but the rest of the ISPs that don't offer unlimited manage to keep relatively consistantly high speeds.
This is why I agree with fair-usage policies in principle but so long as the limits are fair and reasonable to the customer - and the speed of the line is not limited. I'd rather share a 100mbit/s line with 100 people than have 1mbit/s to myself (statistics suggest I would probably get at least 10mbit/s most of the time).
Whoa whoa, stop there. That's not how contention works. It's not "if there is a 1mbit's line it's shared between 10 users" because it's not contention at the last mile that we're worrying about here, it's contention as a sum of the total available bandwidth, as in "if the ISP has 1gbit/s to the outside world, therefore a contention of 1:10 means they should not sell more than 10gbit/s worth of service", although the rules state that they could sell up to 50gbit/s worth of service if they really wanted to.
How much is 10gbit/s of service going to be? Well, that is entirely up to the ISP and what plans he wants to provide. If he decides on 1mbit/s plans at a 1:10 contention ratio, that's 10,000 customers. Or 10mbit/s customers is 1,000 customers. Or 100mbit/s for 100 customers. And so forth. The higher the speed, the higher the contention ratio needs to be to justify it economically BUT CONVERSELY, the less the customers are likely to notice.
As for the 80% rule, if an ISP sells you a 1mbit/s line they are obliged to provide up up to 80% of that - within their network but to the outside world the max they can guarantee you is about 20kbit/s for every megabit they sell you, so a Speedtest result that gives you only like 0.4mbit/s during peak hours is actually not a violation of anything if you can still get >0.8mbit/s to a server within your ISP's network. Or, if you're on ADSL and your line syncs at 80% of the speed it's considered to be OK (so if you're promised 1mbit/s and your modem syncs at 805kbps or so, you're within the limits and nobody is likely to care if you complain).
Unfortunately, many of the TRAI guidelines are actually too difficult for your average person to measure and desperately need clarification - this goes for the "80% rule" as well as contention ratios, because both are frankly too easy to fudge.
I read somewhere on the internet that BSNL shares a 33mbps line to 300users across an exchange.
This is different again. How BSNL contends it's bandwidth is their own thing, but typically a DSL line is given x amount of bandwidth as a committed information rate, and the speed you're sold is a burst speed. This is probably the case with BSNL (and other operators) but because the burst speed is not significantly higher than any CIR they might have (and that they have slow unlimited plans), slowdowns are more noticeable for more time during the day.
I don't know BSNL's numbers, but in NZ, ADSL lines get 45 or 90kbit/s as a CIR even though most of the time I would get 16+mbit/s were I to be downloading something (locally... information from the US or Aussie is an entirely different matter). Basically though, because there are hundreds of lines connected to an exchange or cabinet, you're able to get these kinds of speeds much of the time: if a cabinet serves 500 homes, you're looking at say 45kbit/s * 500 = 225mbit/s or so is supplied to that cabinet.
Obviously 10 or 12 users downloading simultaneously would saturate that upstream but because the attainable speeds are usually 16+mbit/s, it means download times are short, so you have a 1 gigabyte file coming down in a few minutes and then the lines are free for the other 490 customers. Most of the time, nobody ever even notices speed drops except when a lot of people in one area are on a particular ISP that does offer "unlimited" then their speeds drop right from 16+mbit/s to like 0.5 or 1mbit/s... but the rest of the ISPs that don't offer unlimited manage to keep relatively consistantly high speeds.
This is why I agree with fair-usage policies in principle but so long as the limits are fair and reasonable to the customer - and the speed of the line is not limited. I'd rather share a 100mbit/s line with 100 people than have 1mbit/s to myself (statistics suggest I would probably get at least 10mbit/s most of the time).
http://img838.imageshack.us/img838/642/wishnet.jpg
Please clear this thing.I head that they have 4mbps bandwith allocated to a pool and users with that network say 10.10.222.65 gateway and under it from 10.10.222.68-10.10.222.255 they accommodate 20-30 users and they share that pool bandwith
http://img26.imageshack.us/img26/6126/poolvu.jpg
Cablewalas in Kolkata uses this software for everything starting from contending bandwith,pool creation,bandwith policy etc.
Please clear this thing.I head that they have 4mbps bandwith allocated to a pool and users with that network say 10.10.222.65 gateway and under it from 10.10.222.68-10.10.222.255 they accommodate 20-30 users and they share that pool bandwith
http://img26.imageshack.us/img26/6126/poolvu.jpg
Cablewalas in Kolkata uses this software for everything starting from contending bandwith,pool creation,bandwith policy etc.
mgcarley
Founder, Hayai Broadband
Please clear this thing.I head that they have 4mbps bandwith allocated to a pool and users with that network say 10.10.222.65 gateway and under it from 10.10.222.68-10.10.222.255 they accommodate 20-30 users and they share that pool bandwith
Cablewalas in Kolkata uses this software for everything starting from contending bandwith,pool creation,bandwith policy etc.
Not one and the same, really. The contention ratio on Wishnet's website is *supposed* to be for every 1 megabits they sell they have a maximum of 20 users sharing that bandwidth, so if they have 20,000 users, they have maybe 1gbps bandwidth for example.
As for this 24online policy creation thing, that's the cablewala distributing bandwidth, not really the ISP, even though this is the ISPs billing system, it's his reseller account, he's chopping up bandwidth as he sees fit, and my guess is that he's doing exactly what it says on the box: selling plans up to 4mbps and putting up to 20 users on it. Why he's doing it this way I can't say, maybe he's relying on metrics that only a couple of people at any one time are going to be downloading stuff.
See, this is why contention ratios are such a pain to measure, they're different at every point on the network and different for each technology used.
Although I fear we may have significantly deviated now from the original topic - possibly another thread should be created as we no longer seem to be talking about leased lines for small data centres.
Cablewalas in Kolkata uses this software for everything starting from contending bandwith,pool creation,bandwith policy etc.
Not one and the same, really. The contention ratio on Wishnet's website is *supposed* to be for every 1 megabits they sell they have a maximum of 20 users sharing that bandwidth, so if they have 20,000 users, they have maybe 1gbps bandwidth for example.
As for this 24online policy creation thing, that's the cablewala distributing bandwidth, not really the ISP, even though this is the ISPs billing system, it's his reseller account, he's chopping up bandwidth as he sees fit, and my guess is that he's doing exactly what it says on the box: selling plans up to 4mbps and putting up to 20 users on it. Why he's doing it this way I can't say, maybe he's relying on metrics that only a couple of people at any one time are going to be downloading stuff.
See, this is why contention ratios are such a pain to measure, they're different at every point on the network and different for each technology used.
Although I fear we may have significantly deviated now from the original topic - possibly another thread should be created as we no longer seem to be talking about leased lines for small data centres.
Similar threads
- Replies
- 0
- Views
- 1,502
- Replies
- 6
- Views
- 2,634
- Replies
- 3
- Views
- 1,178
- Replies
- 33
- Views
- 4,895