bandwidth

I need to be able to monitor the speed of my internal network using java. I was thinking I could use a two part system with a server and a client. I do not need need response time such as what is generated with ping but and actual speed in mbps for upload and download. My idea would be to have the Server send a packet or series of packets to the client which then replies and then the Server would calculate the speed of the network between those two points. Does anyone have any idea how I could implement this? Thank You ahead of time. Hmm, an interesting problem. I hope you like reading... :-)

I would like to be able to measure network traffic and limit it. I'm looking for something that lets me know between two calls how much data has been sent and received. Also, I would like to be able to limit network traffic (in & out) for my app. Something like the NetLimiter software (great app!) but which I can control from my code. Do you know some third party components to do this ? This is meant to be used on a datasnap 2009 thin-client. If you use Indy, then use the TIdInterceptThrottler class. Simply set the BitsPerSec property. My understanding is that DataSnap is based on Indy. If you

I want to measure bandwidh using c#. Here what I did. Comments and suggestions are welcome. Find maximum udp payload(on my test bed, its 1472 byte) Create non compressible data with 1472 byte size Send this data from a server to a client multiple times(on my test, its 5000 packets) Client start stopwatch at the time the first packet arrive When all data has been sent, send notification to client stating all data has been sent Client stop stopwatch I calculate bandwidth as (total packet sent(5000) * MTU(1500bytes)) / time lapse I notice that some packets are loss. a best, 20% loss. at worst 40%

i want to measure current download speed. im sending huge file over tcp. how can i capture the transfer rate every second? if i use IPv4InterfaceStatistics or similar method, instead of capturing the file transfer rate, i capture the device transfer rate. the problem with capturing device transfer rate is that it captures all ongoing data through the network device instead of the single file that i transfer. how can i capture the file transfer rate? im using c#. Since you doesn't have control over stream to tell him how much read, you can time-stamp before and after a stream read and then