At 05:56 AM 3/21/02, [EMAIL PROTECTED] wrote: >Just wondering if someone could help me out. I am trying to measure the >link capacity over a satellite link (VSAT) and wondered if there is way of >being able to ramp up the throughput until saturation point from the CLI?
Throughput is a measurement of the results of putting a load on a network. It's the quantity of error-free data successfully transferred between nodes per unit of time, usually seconds. It depends on link capacity, processing speed at the nodes, memory at the nodes, etc. Those would be difficult to change, and in fact, are probably not the elements you want to vary as part of your test anyway. I think what you really want to do is ramp up the load? It sounds like you want to do this from the router CLI. You could try an extended ping with the largest packet possible (without fragmentation, since fragmentation would take time) and the smallest delay between pings. You could try downloading a new IOS with TFTP or FTP if your router supports FTP. (FTP is a better test because it uses max frame sizes, whereas TFTP uses 512-byte blocks and is a ping-pong protocol that runs above UDP, with no windowing.) A better approach would probably be to use something other than the CLI. ;-) Most protocol analyzers have traffic generation features. Or you could simply start an FTP or HTTP or video streaming or something of that sort from a generic PC on the other side of the router. Priscilla >Best Regards >Scott Forbes >Network Support & Design Team >INVSAT Limited, Arnhall Business Park, >Westhill, Aberdeenshire, Scotland, UK. >www.invsat.com ________________________ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39067&t=39067 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
