On 2009-09-21, sonjaya <[email protected]> wrote: > [snip] > On Mon, Sep 21, 2009 at 5:25 PM, Paul de Weerd <[email protected]> wrote: >> >> 10G/day is almost 1Mbit per second average (without encapsulation >> overhead). Not really suitable for serial lines (or do you want to >> bundle several 115kbit lines together for "super serial speed" ?). Why >> are you avoiding a dedicated ethernet interface (or VLAN) between the >> two machines ? > > yes the best options is using switch and vlan , buat is my problem in > my place no switch support vlan also no pci socket avaliable for > another ethernet card.
even fairly inexpensive "web managed" switches can do vlan segregation. I've personally used hp, dlink, allied telesyn, smc (the ones I used of these are limited but were pretty much ok), and netgear and linksys (didn't like either of these at all). this is probably cheaper, will most likely put less load on your servers, and are almost certainly easier to purchase than serial ports fast enough to handle your data transfer requirements (and you mention 3 machines so you're going to need buy 3 high quality cables, and at least 4 fast serial cards unless you plan on taking machines down to swap cards between them ..). there are good, appropriate, uses for serial-line comms, this is not one of them. > i have try using usb to network but have poor link. some are terrible, others are totally fine. you have a lot of choices here (e.g. 2x usb ethernet with many types available + crossover cable, or 1x client-client cdce(4) cable).
