Hi Everyone, Sorry for this OT post, but I wonder if there is someone out there who can answer this question for me. We are currently investigating the option of using VSAT Satellite connections for some of our sites in remote areas of Africa. VSAT has been critisized with regards to latency, and according to the supplier, its about 560ms per satellite hop. My question is the following: Would this be 560ms both ways, for each packet sent/received? Would it be 560ms for a packet to be received, then 560ms AGAIN for the corresponding ACK to be sent? If this is the case, even a fast 2Mb line would seem really slow. Or am a reasoning at the wrong end? Any ideas/input would be appreciated. - Jaco _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Hello Jaco, Monday, September 30, 2002, 2:07:46 PM, you wrote: JvdS> Would this be 560ms both ways, for each packet sent/received? JvdS> Would it be 560ms for a packet to be received, then 560ms AGAIN JvdS> for the corresponding ACK to be sent? If this is the case, JvdS> even a fast 2Mb line would seem really slow. Not so good for interactive connection such as telnet ssh and for interactive browsing. But 2mbit always 2mbit. ----------------------------------- mailto:alexey_talikov@texlab.com.uz BR Alexey Talikov FORTEK ----------------------------------- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
> Any ideas/input would be appreciated.Tcp transfers should work out ok of you compensate by setting large/huge windows, though interactive work will probably not be that fun. Slashdot had a story about a satellite connection, and the page regarding that says their "ping-time" was around 650ms, I guess thats round-trip then? --- John Bäckstrand _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/