How much bandwidth per month can 100mbps connection get?

This is the plan I used to work out the problem. I dunno if its right.

100mb/sec x 60 sec x 60 min x 24 hr. x 7 days x 4 weeks = 241,920,000 mb per month. That is like 241.9 tera-bytes bandwidth per month. That seems hell alot of bandwidth! Am I right or wrong. If I am wrong, how do I do it?

Network speeds are always measures in Mbps, not MBps.

So 100Mbps = 600Mb/min = 36000/hour = 864000/day = 259200000/month.

Now that's 259200000 Megabits devided by 8 = 3240000 Megabytes a month or 3.24 terrabytes.

Keep in mind that this is the theoretical max.

http://www.game-mods.com/datacenter/bw.php Search wht if you want the source code.

nify and easy to use :)

http://www.nyi.net/BandwidthCalc.php?STEP=0

well when I do this on tetraboy's link it says 32,400 gb bandwidth which is 32.4 tera-bytes? Can anybody tell me who is correct here? thanks

people already did.

each person said different amount? What do u mean they already did?

the link is correct.

How much bandwidth per month can 100mbps connection get?

Don't mean to be a bastard, but you meant to ask how much monthly transfer can I get from 100Mbps of bandwidth.

Transfer != Bandwidth

Also, just re-do Smallworld's math. 32.4 TB is the maximum possible transfer you could push through your line in a month, which is no where near the amount anyone would push though a 100Mbps connection.

Sorry to bump this thread up. :(
I just have a question: how much GB's could I push out of a 10Mbit connection, without my customers noticing any slowing-down ? Is 2000GB possible? 1500GB ? :confused:
Really important. Let me know what you think. ;)

Thank you all once again. :love:

Originally posted by Smallworld
Network speeds are always measures in Mbps, not MBps.

So 100Mbps = 600Mb/min = 36000/hour = 864000/day = 259200000/month.

Now that's 259200000 Megabits devided by 8 = 3240000 Megabytes a month or 3.24 terrabytes.

Keep in mind that this is the theoretical max.

You should be off by a factor of 10.
10 Mbps gives you roughly 3 Terra Bytes/mo already ....

cheers,
:beer:

Originally posted by .::DefCon::.
I just have a question: how much GB's could I push out of a 10Mbit connection, without my customers noticing any slowing-down ? Is 2000GB possible? 1500GB ? :confused:
Really important. Let me know what you think. ;)


I've answered this question at least twice before, but since I can't find my own posts via the search engine I can't really complain about it coming up again.

Basically, 100GB/Mbps on a capped line (ie 1000GB here). You'll see 200GB per Mbps-month at 95th percentile, and standard rules are that the 95th percentile level should be no higher than 50% of line capacity.

Originally posted by dektong


You should be off by a factor of 10.
10 Mbps gives you roughly 3 Terra Bytes/mo already ....

cheers,
:beer:

Yes indeed, it CAN give 3000GB/mth. But won't the speed be REALLY slow then? :confused:
What's a good limit to say: "okay, now I need to take another server" ?? :confused:

thx :)

It all depends on the types of site you host, and the specs of your server.

One of our servers pushes under 100Gb per month, and is pretty much fully loaded - and thats when its tweaked quite a bit too. It just hosts lots of script heavy sites, and we don't want to overload it.

Then again, other servers will push 10 times that without blinking...

Basically, 100GB/Mbps on a capped line (ie 1000GB here). You'll see 200GB per Mbps-month at 95th percentile, and standard rules are that the 95th percentile level should be no higher than 50% of line capacity.

Hi Cperciva,

care to explain it again why so?

cheers,
:beer:

For traffic levels above a couple Mbps, average:95th percentile levels tend towards a 2:3 ratio; this is varies somewhat, of course, but generally speaking the daily and weekly traffic variation will lead to something close to this ratio. Take a look at some MRTG graphs (eg http://mrtg.datacolo.com/switch5/index.cgi?log=dctotal) if you're not convinced.

As for the "95th percentile at 50% capacity" rule, there isn't any particular justification for it beyond the fact that it's a rule of thumb which works pretty well. Obviously since 5% of samples are above the 95th percentile level you can't allow the 95th percentile to get anywhere near the full capacity; also the 50% capacity mark is where it becomes theoretically practical to measure the load based on the resulting lag.

Originally posted by voxtreme-matt
It all depends on the types of site you host, and the specs of your server.

One of our servers pushes under 100Gb per month, and is pretty much fully loaded - and thats when its tweaked quite a bit too. It just hosts lots of script heavy sites, and we don't want to overload it.

Then again, other servers will push 10 times that without blinking...

The server specs we're talking about are:
Athlon XP 1900MHz
1GB ram
2x120GB hard disks
RedHat
Plesk

Could you give me an idea how much transfer I could push out of this one, considering we're talking about medium to large sites (10-70GB/mth) here with standard CPU usage?

With a mix of sites, I'd guess around 400 - 600Gb per month. Maybe thats a little generous too...

There is no "average" website. That server could handle 5000GB/month of static pages (if it had a faster network connection), or it could get heavily loaded by a forum pushing 50GB/month.

The best thing to do is simply run MRTG and watch the graphs; if the cpu usage exceeds 25% at 95th percentile levels, or if the memory usage (as reported by vmstat) exceeds 50% at 95th percentile levels, or if the bandwidth exceeds 50% of line capacity at 95th percentile levels, it's time to get another server.

Originally posted by cperciva
There is no "average" website. That server could handle 5000GB/month of static pages (if it had a faster network connection), or it could get heavily loaded by a forum pushing 50GB/month.

The best thing to do is simply run MRTG and watch the graphs; if the cpu usage exceeds 25% at 95th percentile levels, or if the memory usage (as reported by vmstat) exceeds 50% at 95th percentile levels, or if the bandwidth exceeds 50% of line capacity at 95th percentile levels, it's time to get another server.

I agree 100% - its a fuzzy question to answer; I simply gave him my best guess from my own experience, and guessing the different types of sites he'll host.