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- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!rpi!scott.skidmore.edu!psinntp!psinntp!crynwr!nelson
- From: nelson@crynwr.com (Russell Nelson)
- Newsgroups: comp.protocols.tcp-ip.ibmpc
- Subject: Sun <=> PC Transfer Rate (Summary)
- Distribution: world
- Message-ID: <716270801snx@crynwr.com>
- References: <920911085058@minimillian.ftp.com>
- Date: Sat, 12 Sep 92 04:06:41 GMT
- Organization: Crynwr Software
- Lines: 17
-
- In article <920911085058@minimillian.ftp.com> backman@vaxeline.ftp.com writes:
-
- >> >I've gotten as high as 5megabits/second using a 50Mhz 486DX box with a 16 >> >bit WD board using the same software and packet driver.
- >>
- >> That is about the limit of the current ISA ethernet hardware and packet
- >> drivers. 3Com's new (unreleased) cards should up that by 25% to 50%.
-
- The 3C509 (if this is what you are referring to) has serious problems with
- 8K receives. I have had little luck in getting its OS/2 NDIS driver to
- consistently receive all 6 IP fragments in an 8K RPC. 3Com's response
- has been to state that the NFS protocol is flawed if it expects to
- receive 6 back to back packets.
-
- The problem is probably more due to OS/2's interrupt latency. From
- what I see of the 3c509, it's receive performance will be very closely
- related to your interrupt latency.
-
- -russ <nelson@crynwr.com> I'm proud to be a humble Quaker!
- Crynwr Software Crynwr Software sells packet driver support.
- 11 Grant St. 315-268-1925 Voice
- Potsdam, NY 13676 315-268-9201 FAX
-