NPO Kandahar WISP

Dear SPC Sanchez,

When you say 12-14, do you really mean kbps or kilobytes per second? If the latter, then 12 * 8 = 96 kbps (kilobits per second) which is probably in line what you are buying. I doubt you are offered 128/64 dedicated CIR, in other words, a link that is guaranteed to perform at 128/64 on a 24/7 basis. Most probably the bandwidth is shared among multiple subscribers, so that's why you can't burst to 128/64. If you've really meant 12-14 kilobits per second then it's painfully slow indeed.

A different question is would a 2048/1024 10:1 link shared among 30 persons be faster than 128/64 per person? I think definitely yes. You are not capped at 128/64, so whenever free bandwidth is available on the link you will be able to burst much higher than 128/64. Our practice shows that 2048/1024 10:1 is a good choice for 20-30 persons. Notice that 10:1 means that a common satellite resource is shared among 10 remote VSAT terminals. That is, your 2048/1024 10:1 link will not provide a guaranteed 2048/1024 throughput all the time. The quality of satellite service you are to receive depends on how well the satellite ISP manages its bandwidth. What if each of those ten VSAT terminals have 10 PCs? The service will be pretty good. What if it has 50 or 100 PCs? This leads to a conclusion that the contention ratio alone is not enough to define a reliable quality criteria. That is, there may be both good and bad 1:10 services, with the same bit rates.

FAP helps to control how bandwidth is shared and assures everybody gets a fair piece of the pie, however it's a double edged sword. Once you exceed the allowable FAP traffic limit (per day or per hour), your VSAT system turns into a pumpkin for some 'cool down' time. That is the problem: the buyer needs to know his traffic levels in advance in order to go with a FAP service. When you use a system for recreational purposes, you often don't know much on the actual traffic demands. Alternative thinking would be to go with a service with FAP, however knowing you will be required to upgrade at any time.

My company offers shared services with no FAP. This is a policy we implemented from the beginning. There are other satellite providers that provide FAP-less services. Instead of FAP, we exercise control on how the customer is going to use a service. That is, we will not allow somebody to subscribe a 1,000 PCs Internet Cafe on a 2048/1024 1:10 link. Our decision thresholds depend on the estimates on how many PCs there are in the network, what is the environment, how many VoIP lines are there, whether there are any additional requirements like VPN, videoconferencing, etc. We base our decision on a guessed estimate on how much traffic to expect per each PC in the network. I can elaborate more on this if you are interested, however it is sufficient to say this approach works well for us and that the churn rate among our customers is pretty low.

I will send you an e-mail with what we can offer to you shortly. Feel free to ask me any more details in public if you like.

hello sir...
we have good offers for you we can apply and serve you by the best way, please contact me by email if you still want the internet service