In a message dated 8/10/00 9:27:30 PM Eastern Daylight Time, [EMAIL PROTECTED] writes:
> Two or three hours ago, I had to transfer a CD image between > two machines of mine and both of them are using el-cheapo > 10mbps ISA cards. I started the transfers using NFS but after > I saw that it would take my entire life for the transfer to be > finished, I simply installed Apache on the serving side and > used wget to pull the file. Whoa, I visibly got much better > transfer rates and wget, at the final of the transfer said it > got 400MB+ with a transfer rate of 915.xx KB/s, which is much > more than 5mbps. This obviously doesn't count the overhead > incurred by the TCP/IP protocols. > > So, this means the 486 might be subject to more than 5mbps. > But I still believe it can handle it, depending on the needs > of the network and pattern of usage. Are we overlooking any cpu time traded for compression/decompression for the smaller amount eventually sent? Infotel has scsi cards down below 25$ ISA. For $50 you can get one w/a bios for over 1024 cyls; over 2 disks, etc. The isa scsi ethernet cards should be in same $ range. Then you can put 2 ethernet cards on scsi bus (just don't let'em know about each other, or a "bridged" connection can leap from one to the other w/o checking w/OS/cpu). But, as stated in thread, don't even think about (allow any) disk latency for the firewall, logging can be niced/compressed thereon to be sent out to bigger box (w/appropriate transaction processing assurances of accurate true receipt etc.) and disks become a non-issue (firewall effectively is diskless, disks only buffer outbound logs data or participate in pipeline of it; logging records created/dispatched to i/o>file/pipeline done in kernal space-time of firewall/OS/Server processes; you're just transmitting log files to someplace else where they "fit" better; having dealt w/log-entry/transmit concurrency; try simple/small obvious/flagged overlap & just start each log transmit confirm by looking from bottom end for overlap mark/timestamp match true&accurate transfer confirm - else loop for retran-try-till-alarm). Sorta. Regards, Jim Cunningham at "home" If you can't remember it ... ... ... forget it.
