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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!uunet!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!news.uoregon.edu!gaia.ucs.orst.edu!OES.ORST.EDU!millerj From: millerj@OES.ORST.EDU (James Miller) Newsgroups: comp.os.386bsd.questions Subject: Re: SLIP mtu rate Date: 10 Feb 1995 16:25:07 GMT Organization: Oregon Extension Service Lines: 47 Message-ID: <3hg413$ls@gaia.ucs.orst.edu> References: <3h36qg$5ga@gaia.ucs.orst.edu> <3hd4h6$sfo@clarknet.clark.net> NNTP-Posting-Host: oes.orst.edu All of your questions completely describe why I want to boost the mtu rate. I want faster ftp and www transfer. My service provider is running at 1006 and I have it set at the default 296. I would like to equal these numbers. I think that is the major problem with my connection. I can figure out how to change it. Some people have mentioned to dive into the source code. I am reluctant to do that, but I will if I have to. -James In article <3hd4h6$sfo@clarknet.clark.net>, Robert Watson <rwatson@clark.net> wrote: >What effect will modifying the mtu have? Will it affect both ends, or >just the end one modifies? > >I assume the following: larger packet size will result in higher >throughput on a large packet transfer (eg., ftp will have less redundancy >because packets can be larger, as long as they're smaller than the mtu of >the line used to get to the gating system), but multiple sessions will >respond less smoothly (if one is ftping over a line, telnet response time >will go even further down than with a lower mtu), etc? Will it affect my >ping time, however? I just tried it briefly, and ping time seemed to >increase when I moved mtu from 552 to 1006, but it's hard to tell with >our line because it's getting pretty constant use. > >Any thoughts/information of official nature (or just first hand >experience) would be welcomed. > > >James Miller (millerj@OES.ORST.EDU) wrote: >: I am currently connected to the net with a SLIP connection. When I do >: a netstat -i it shows this: > >: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll >: sl0 296 <Link> 1097 0 1095 0 0 >: sl0 296 BENDNET.rai 199.2.205.31 1097 0 1095 0 0 > >: My service provider tells me that I need to boost the Mtu rate to 1006. >: But how is this accomplished. I have read the man pages for slattach, >: ifconfig, and all that fun stuff. > >: Thanks ahead of time for any help. >: -James >