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From: avg@hq.demos.su (Vadim G. Antonov)
Newsgroups: comp.unix.sysv386
Subject: Re: ISC 2.2 SL/IP throughput?
Message-ID: <1990Aug29.084637.6128@hq.demos.su>
Date: 29 Aug 90 08:46:37 GMT
References: <25@astph.UUCP> <3694@wb3ffv.ampr.org> <26@astph.UUCP> <1990Aug23.160013.1199@scuzzy.mbx.sub.org>
Reply-To: avg@hq.demos.su (Vadim G. Antonov)
Organization: DEMOS, Moscow, USSR
Lines: 12

src@scuzzy.mbx.sub.org (Heiko Blume) writes:
>
>can someone tell me what throughput i can expect with sl/ip over
>a modem connection with HST modems (14400bps)? we talk to the modems
>at 19200 and use hardware flow control (FAS with 16550 chips). we did
>a ftp and the throughput was ~0.2 KB/s on a 600KB file, which is unacceptable.
>did we do something wrong? (of course we did sldialup/attach 19200 ttyF01).
>
	Try to vary IP packet sizes - if your serial port or
	serial driver can not accept big packets on 19200, it
	may me be reasonable to reduce it even to 128 bytes.
	It's a matter of experimenting.