Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!rochester!ritcv!cci632!ccicpg!arnold!dave From: dave@arnold.UUCP (Dave Arnold) Newsgroups: comp.mail.uucp Subject: Re: 'g' packet size Message-ID: <192@arnold.UUCP> Date: 26 Sep 88 14:39:48 GMT References: <212@jato.Jpl.Nasa.Gov> <5463@hoptoad.uucp> Organization: Home, Mission Viejo, Ca Lines: 28 gnu@hoptoad.uucp (John Gilmore) writes: > The packet size is negotiated in powers of two; it is possible to > negotiate larger packet sizes. I just wanted to point out that there really isn't any "negotiation" in g. Simply, each side tells the other what to send. Period. The other side is supposed to "Comply". Now if there was a dialogue, such as -> Send me 1024 byte packets <- Unable to Send you 1024 byte packets but can send you 512 -> Please send me 512 <- Sending 512 ... I suppose the INITC message offers some kind of negotiation. That is, after the window size, and packet size have been set in the transmitter, a INITC can reset your transmit window. > It's not clear what effect larger packet sizes would have. On I don't know about dialup links---But some statistics I've seen regarding configuring X.25 packet layer packet sizes, the larger, the better. Assuming it's a clean link. -- Dave Arnold dave@arnold.UUCP {cci632|uunet}!ccicpg!arnold!dave