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- From: exodus@vsync.Eng.Sun.COM (Greg Onufer)
- Newsgroups: comp.protocols.ppp
- Subject: Re: sun serial >38400
- Date: 9 Jan 1993 01:17:09 GMT
- Organization: Sun Microsystems Inc., Mountain View, CA
- Lines: 13
- Distribution: usa
- Message-ID: <lks9slINNkpd@exodus.Eng.Sun.COM>
- References: <searsk-030193070145@3.7.192.190> <1993Jan6.213927.2788@ukw.uucp> <1igu0rINNsvt@grapevine.EBay.Sun.COM> <1993Jan7.194405.15843@colorado.edu> <1993Jan8.122742.3793@hemlock.cray.com> <5d72c2b5.1bc5b@pisa.citi.umich.edu>
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- In <5d72c2b5.1bc5b@pisa.citi.umich.edu> rees@pisa.citi.umich.edu (Jim Rees) writes:
- >The problem of missing interrupts is a real one. If your mtu is 1500, then
- >you have to catch every one of 1500 interrupts in a row. If you miss even
- >one, the packet is lost. While processing an interrupt in 13 us may be
- >easy, guaranteeing that you can get to it in time is not, at least in a
- >general purpose computer.
-
- Even the oldest z8530's have a 2-byte FIFO as well as the receiver
- shift register. You don't have to hit *every* one of the 1500
- interrupts...
-
- Cheers!greg
- Standard disclaimers apply
-